| Message ID | 168814734331.530310.3911190551060453102.stgit@manet.1015granger.net (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | shmemfs stable directory offsets | expand |
Hello,
kernel test robot noticed a 3.0% improvement of stress-ng.handle.ops_per_sec on:
commit: a1a690e009744e4526526b2f838beec5ef9233cc ("[PATCH v7 3/3] shmem: stable directory offsets")
url: https://github.com/intel-lab-lkp/linux/commits/Chuck-Lever/libfs-Add-directory-operations-for-stable-offsets/20230701-014925
base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/all/168814734331.530310.3911190551060453102.stgit@manet.1015granger.net/
patch subject: [PATCH v7 3/3] shmem: stable directory offsets
testcase: stress-ng
test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory
parameters:
nr_threads: 10%
disk: 1SSD
testtime: 60s
fs: ext4
class: filesystem
test: handle
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
sudo bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
sudo bin/lkp run generated-yaml-file
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
filesystem/gcc-12/performance/1SSD/ext4/x86_64-rhel-8.3/10%/debian-11.1-x86_64-20220510.cgz/lkp-skl-d08/handle/stress-ng/60s
commit:
c2c3172c26 ("shmem: Refactor shmem_symlink()")
a1a690e009 ("shmem: stable directory offsets")
c2c3172c269f808d a1a690e009744e4526526b2f838
---------------- ---------------------------
%stddev %change %stddev
\ | \
5.92 -1.2% 5.85 iostat.cpu.system
88.56 ± 21% -29.4% 62.51 ± 39% sched_debug.cfs_rq:/.util_est_enqueued.avg
1294 ± 10% -21.2% 1020 ± 13% sched_debug.cpu.curr->pid.avg
11210546 +3.0% 11542342 stress-ng.handle.ops
186841 +3.0% 192371 stress-ng.handle.ops_per_sec
100.40 ± 53% -51.2% 49.00 ± 74% proc-vmstat.nr_dirtied
488851 ± 5% -8.4% 447861 proc-vmstat.numa_hit
480285 ± 5% -6.8% 447764 proc-vmstat.numa_local
750318 ± 6% -8.4% 687348 proc-vmstat.pgalloc_normal
710717 ± 7% -9.0% 646894 proc-vmstat.pgfree
1.43e+09 -1.7% 1.406e+09 perf-stat.i.branch-instructions
1.25 -0.0 1.20 perf-stat.i.branch-miss-rate%
19188631 -5.1% 18207135 perf-stat.i.branch-misses
0.15 +0.0 0.15 perf-stat.i.dTLB-load-miss-rate%
2781970 +2.6% 2854604 perf-stat.i.dTLB-load-misses
1.904e+09 -1.5% 1.875e+09 perf-stat.i.dTLB-loads
1.139e+09 -1.7% 1.12e+09 perf-stat.i.dTLB-stores
67.67 ± 10% +7.1 74.72 perf-stat.i.iTLB-load-miss-rate%
1568674 ± 46% -32.7% 1055235 ± 14% perf-stat.i.iTLB-loads
7.352e+09 -1.4% 7.247e+09 perf-stat.i.instructions
124.64 -1.9% 122.30 perf-stat.i.metric.M/sec
41311 ± 5% -11.0% 36758 ± 2% perf-stat.i.node-stores
1.34 -0.0 1.29 perf-stat.overall.branch-miss-rate%
0.15 +0.0 0.15 perf-stat.overall.dTLB-load-miss-rate%
68.34 ± 10% +7.3 75.68 ± 2% perf-stat.overall.iTLB-load-miss-rate%
1.407e+09 -1.7% 1.383e+09 perf-stat.ps.branch-instructions
18876614 -5.1% 17906237 perf-stat.ps.branch-misses
2737798 +2.6% 2809345 perf-stat.ps.dTLB-load-misses
1.873e+09 -1.5% 1.845e+09 perf-stat.ps.dTLB-loads
1.121e+09 -1.7% 1.102e+09 perf-stat.ps.dTLB-stores
1543675 ± 46% -32.8% 1037667 ± 14% perf-stat.ps.iTLB-loads
7.235e+09 -1.4% 7.13e+09 perf-stat.ps.instructions
40647 ± 5% -11.1% 36139 ± 3% perf-stat.ps.node-stores
4.557e+11 -1.2% 4.502e+11 perf-stat.total.instructions
0.01 -20.0% 0.00 perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork
0.08 ± 10% -30.6% 0.06 ± 9% perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.19 ± 5% -26.8% 0.14 ± 3% perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.08 ± 20% -30.2% 0.06 ± 15% perf-sched.wait_time.avg.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare
0.08 ± 10% -31.9% 0.06 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.do_sys_name_to_handle.__x64_sys_name_to_handle_at
0.08 ± 12% -31.4% 0.06 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.handle_to_path.do_handle_open
0.08 ± 9% -29.4% 0.06 ± 14% perf-sched.wait_time.avg.ms.__cond_resched.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file
0.08 ± 9% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.dentry_kill.dput.dcache_dir_close.__fput
0.08 ± 10% -30.5% 0.06 ± 7% perf-sched.wait_time.avg.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop
0.08 ± 11% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.dput.dcache_dir_close.__fput.task_work_run
0.08 ± 10% -30.3% 0.06 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.dput.path_put.__x64_sys_name_to_handle_at.do_syscall_64
0.08 ± 9% -34.9% 0.05 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.dput.path_put.do_handle_open.do_syscall_64
0.08 ± 10% -29.6% 0.05 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_openat.do_file_open_root
0.08 ± 9% -30.6% 0.06 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_openat.do_filp_open
0.08 ± 10% -29.1% 0.06 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.ilookup5.shmem_fh_to_dentry.exportfs_decode_fh_raw.exportfs_decode_fh
0.08 ± 18% -30.9% 0.05 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_file_open_root
0.07 ± 7% -23.8% 0.06 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open
0.08 ± 10% -32.2% 0.05 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0
0.08 ± 11% -33.4% 0.05 ± 12% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_kernel.do_file_open_root.file_open_root
0.08 ± 11% -30.8% 0.06 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file
0.08 ± 10% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
0.08 ± 11% -34.6% 0.05 ± 11% perf-sched.wait_time.avg.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.08 ± 10% -30.6% 0.06 ± 9% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.08 ± 11% -32.3% 0.05 ± 9% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.13 ± 29% -43.2% 0.07 ± 22% perf-sched.wait_time.max.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare
0.18 ± 11% -22.3% 0.14 ± 12% perf-sched.wait_time.max.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.do_sys_name_to_handle.__x64_sys_name_to_handle_at
0.17 ± 9% -28.2% 0.12 ± 6% perf-sched.wait_time.max.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.handle_to_path.do_handle_open
0.13 ± 14% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.dentry_kill.dput.dcache_dir_close.__fput
0.15 ± 9% -26.8% 0.11 ± 16% perf-sched.wait_time.max.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop
0.11 ± 32% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.dput.dcache_dir_close.__fput.task_work_run
0.17 ± 2% -26.6% 0.12 ± 7% perf-sched.wait_time.max.ms.__cond_resched.dput.path_put.__x64_sys_name_to_handle_at.do_syscall_64
0.16 ± 10% -42.7% 0.09 ± 18% perf-sched.wait_time.max.ms.__cond_resched.dput.path_put.do_handle_open.do_syscall_64
0.16 ± 10% -27.0% 0.12 ± 6% perf-sched.wait_time.max.ms.__cond_resched.dput.terminate_walk.path_openat.do_file_open_root
0.16 ± 6% -24.1% 0.12 ± 9% perf-sched.wait_time.max.ms.__cond_resched.ilookup5.shmem_fh_to_dentry.exportfs_decode_fh_raw.exportfs_decode_fh
0.13 ± 27% -36.6% 0.08 ± 24% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_file_open_root
0.13 ± 16% -27.5% 0.10 ± 20% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open
0.18 ± 9% -23.2% 0.14 ± 13% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0
0.15 ± 11% -35.8% 0.10 ± 15% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.getname_kernel.do_file_open_root.file_open_root
0.16 ± 7% -35.5% 0.10 ± 24% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file
0.17 ± 10% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
0.16 ± 8% -36.2% 0.10 ± 21% perf-sched.wait_time.max.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.19 ± 5% -26.8% 0.14 ± 3% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.18 ± 4% -31.4% 0.12 ± 8% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
1.42 ± 6% -0.8 0.59 ± 3% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
1.89 ± 4% -0.8 1.07 ± 5% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
4.24 ± 3% -0.8 3.43 ± 2% perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
4.19 ± 3% -0.8 3.38 ± 2% perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
3.46 ± 3% -0.8 2.68 ± 3% perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.36 ± 3% -0.8 2.59 ± 3% perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64
6.64 ± 3% -0.8 5.88 ± 2% perf-profile.calltrace.cycles-pp.open64
5.39 ± 3% -0.8 4.63 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.open64
4.95 ± 3% -0.8 4.19 ± 2% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
5.48 ± 4% -0.7 4.80 ± 3% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
6.32 ± 3% -0.6 5.68 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
8.83 ± 3% -0.5 8.29 perf-profile.calltrace.cycles-pp.__close
4.33 ± 4% -0.5 3.82 ± 5% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
2.36 ± 5% -0.5 1.86 ± 8% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
2.93 ± 5% -0.5 2.45 ± 6% perf-profile.calltrace.cycles-pp.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.76 ± 5% -0.5 2.28 ± 7% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
2.98 ± 5% -0.5 2.50 ± 6% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
1.17 ± 13% -0.3 0.85 ± 17% perf-profile.calltrace.cycles-pp.rcu_core.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread
1.00 ± 3% -0.1 0.85 ± 9% perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
0.77 ± 4% -0.1 0.66 ± 13% perf-profile.calltrace.cycles-pp.filp_close.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
1.17 ± 6% +0.1 1.29 ± 5% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_file_open_root.file_open_root
3.33 ± 5% +0.2 3.56 ± 2% perf-profile.calltrace.cycles-pp.do_file_open_root.file_open_root.do_handle_open.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.38 ± 5% +0.2 3.61 ± 2% perf-profile.calltrace.cycles-pp.file_open_root.do_handle_open.do_syscall_64.entry_SYSCALL_64_after_hwframe.open_by_handle_at
4.26 ± 3% -0.8 3.44 ± 2% perf-profile.children.cycles-pp.__x64_sys_openat
4.21 ± 3% -0.8 3.40 ± 2% perf-profile.children.cycles-pp.do_sys_openat2
3.47 ± 3% -0.8 2.69 ± 3% perf-profile.children.cycles-pp.do_filp_open
6.69 ± 3% -0.8 5.93 ± 2% perf-profile.children.cycles-pp.open64
2.59 ± 5% -0.7 1.89 ± 3% perf-profile.children.cycles-pp.do_dentry_open
3.35 ± 4% -0.7 2.66 ± 3% perf-profile.children.cycles-pp.do_open
6.40 ± 4% -0.6 5.80 ± 2% perf-profile.children.cycles-pp.path_openat
8.94 ± 3% -0.5 8.41 ± 2% perf-profile.children.cycles-pp.__close
2.38 ± 5% -0.5 1.88 ± 8% perf-profile.children.cycles-pp.__fput
2.95 ± 5% -0.5 2.46 ± 6% perf-profile.children.cycles-pp.exit_to_user_mode_loop
2.77 ± 5% -0.5 2.30 ± 7% perf-profile.children.cycles-pp.task_work_run
3.20 ± 5% -0.4 2.75 ± 5% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
2.89 ± 7% -0.4 2.44 ± 4% perf-profile.children.cycles-pp.dput
0.36 ± 8% -0.2 0.14 ± 16% perf-profile.children.cycles-pp.lockref_put_return
1.00 ± 3% -0.1 0.86 ± 10% perf-profile.children.cycles-pp.__x64_sys_close
0.77 ± 4% -0.1 0.66 ± 13% perf-profile.children.cycles-pp.filp_close
0.35 ± 15% -0.1 0.24 ± 16% perf-profile.children.cycles-pp.__slab_free
0.44 ± 13% -0.1 0.33 ± 8% perf-profile.children.cycles-pp.shmem_encode_fh
0.49 ± 6% -0.1 0.39 ± 3% perf-profile.children.cycles-pp.memcg_slab_post_alloc_hook
0.70 ± 7% -0.1 0.60 ± 9% perf-profile.children.cycles-pp.lockref_get
0.39 ± 8% -0.1 0.30 ± 24% perf-profile.children.cycles-pp.locks_remove_posix
0.34 ± 7% -0.1 0.26 ± 5% perf-profile.children.cycles-pp.__call_rcu_common
0.13 ± 8% -0.1 0.07 ± 9% perf-profile.children.cycles-pp.___slab_alloc
0.25 ± 12% -0.0 0.20 ± 11% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
0.37 ± 10% -0.0 0.33 ± 9% perf-profile.children.cycles-pp.rep_movs_alternative
0.08 ± 16% -0.0 0.05 ± 54% perf-profile.children.cycles-pp.obj_cgroup_charge
0.16 ± 12% -0.0 0.13 ± 4% perf-profile.children.cycles-pp.close_fd
0.13 ± 4% -0.0 0.10 ± 14% perf-profile.children.cycles-pp.is_vmalloc_addr
3.34 ± 5% +0.2 3.57 ± 2% perf-profile.children.cycles-pp.do_file_open_root
0.36 ± 8% -0.2 0.13 ± 19% perf-profile.self.cycles-pp.lockref_put_return
0.34 ± 15% -0.1 0.23 ± 16% perf-profile.self.cycles-pp.__slab_free
0.44 ± 13% -0.1 0.33 ± 10% perf-profile.self.cycles-pp.shmem_encode_fh
0.69 ± 7% -0.1 0.60 ± 9% perf-profile.self.cycles-pp.lockref_get
0.39 ± 7% -0.1 0.30 ± 25% perf-profile.self.cycles-pp.locks_remove_posix
0.37 ± 7% -0.1 0.29 ± 5% perf-profile.self.cycles-pp.memcg_slab_post_alloc_hook
0.20 ± 10% -0.1 0.15 ± 9% perf-profile.self.cycles-pp.__call_rcu_common
0.13 ± 21% -0.0 0.09 ± 28% perf-profile.self.cycles-pp.__legitimize_path
0.13 ± 6% -0.0 0.10 ± 14% perf-profile.self.cycles-pp.is_vmalloc_addr
0.10 ± 7% -0.0 0.08 ± 7% perf-profile.self.cycles-pp.do_handle_open
0.15 ± 11% +0.0 0.18 ± 5% perf-profile.self.cycles-pp.init_file
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
hi, Chuck Lever,
we reported a 3.0% improvement of stress-ng.handle.ops_per_sec for this commit
on
https://lore.kernel.org/oe-lkp/202307132153.a52cdb2d-oliver.sang@intel.com/
but now we noticed a regression, detail as below, FYI
Hello,
kernel test robot noticed a -15.5% regression of will-it-scale.per_thread_ops on:
commit: a1a690e009744e4526526b2f838beec5ef9233cc ("[PATCH v7 3/3] shmem: stable directory offsets")
url: https://github.com/intel-lab-lkp/linux/commits/Chuck-Lever/libfs-Add-directory-operations-for-stable-offsets/20230701-014925
base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/all/168814734331.530310.3911190551060453102.stgit@manet.1015granger.net/
patch subject: [PATCH v7 3/3] shmem: stable directory offsets
testcase: will-it-scale
test machine: 104 threads 2 sockets (Skylake) with 192G memory
parameters:
nr_task: 16
mode: thread
test: unlink2
cpufreq_governor: performance
In addition to that, the commit also has significant impact on the following tests:
+------------------+-------------------------------------------------------------------------------------------------+
| testcase: change | will-it-scale: will-it-scale.per_thread_ops -40.0% regression |
| test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory |
| test parameters | cpufreq_governor=performance |
| | mode=thread |
| | nr_task=16 |
| | test=unlink2 |
+------------------+-------------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.handle.ops_per_sec 3.0% improvement |
| test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory |
| test parameters | class=filesystem |
| | cpufreq_governor=performance |
| | disk=1SSD |
| | fs=ext4 |
| | nr_threads=10% |
| | test=handle |
| | testtime=60s |
+------------------+-------------------------------------------------------------------------------------------------+
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202307171436.29248fcf-oliver.sang@intel.com
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
sudo bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
sudo bin/lkp run generated-yaml-file
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-8.3/thread/16/debian-11.1-x86_64-20220510.cgz/lkp-skl-fpga01/unlink2/will-it-scale
commit:
c2c3172c26 ("shmem: Refactor shmem_symlink()")
a1a690e009 ("shmem: stable directory offsets")
c2c3172c269f808d a1a690e009744e4526526b2f838
---------------- ---------------------------
%stddev %change %stddev
\ | \
1991 +50.9% 3005 vmstat.system.cs
0.81 +1.4 2.19 mpstat.cpu.all.soft%
1.67 ± 2% -0.2 1.45 mpstat.cpu.all.usr%
24095642 ± 2% +113.9% 51539271 numa-numastat.node0.local_node
24164359 ± 2% +113.5% 51582554 numa-numastat.node0.numa_hit
555.33 ± 6% +108.7% 1158 ± 6% perf-c2c.DRAM.local
25.17 ± 16% +46.4% 36.83 ± 14% perf-c2c.DRAM.remote
13.83 ± 20% +78.3% 24.67 ± 19% perf-c2c.HITM.remote
255956 ± 24% -92.7% 18574 ± 69% sched_debug.cfs_rq:/.spread0.max
1659 ± 6% +59.1% 2640 ± 8% sched_debug.cpu.clock_task.stddev
4686 ± 4% +27.0% 5952 ± 6% sched_debug.cpu.nr_switches.avg
1144102 ± 2% -15.5% 967020 will-it-scale.16.threads
71505 ± 2% -15.5% 60438 will-it-scale.per_thread_ops
1144102 ± 2% -15.5% 967020 will-it-scale.workload
131875 +60.2% 211239 meminfo.KReclaimable
131875 +60.2% 211239 meminfo.SReclaimable
258837 -14.7% 220833 meminfo.SUnreclaim
390713 +10.6% 432074 meminfo.Slab
95496 ± 5% +86.8% 178379 ± 3% numa-meminfo.node0.KReclaimable
95496 ± 5% +86.8% 178379 ± 3% numa-meminfo.node0.SReclaimable
158003 ± 5% -27.0% 115367 ± 3% numa-meminfo.node0.SUnreclaim
253500 ± 4% +15.9% 293747 ± 2% numa-meminfo.node0.Slab
23915 ± 5% +86.8% 44685 ± 3% numa-vmstat.node0.nr_slab_reclaimable
39711 ± 5% -27.3% 28867 ± 3% numa-vmstat.node0.nr_slab_unreclaimable
24164365 ± 2% +113.5% 51582656 numa-vmstat.node0.numa_hit
24095648 ± 2% +113.9% 51539372 numa-vmstat.node0.numa_local
83317 ± 4% +83.8% 153145 ± 3% turbostat.C1E
0.10 ± 7% +0.1 0.19 ± 6% turbostat.C1E%
236.45 +2.2% 241.56 turbostat.PkgWatt
22.00 +28.8% 28.34 turbostat.RAMWatt
32975 +61.6% 53290 proc-vmstat.nr_slab_reclaimable
64774 -14.6% 55295 proc-vmstat.nr_slab_unreclaimable
24757758 ± 2% +110.7% 52155982 proc-vmstat.numa_hit
24647533 ± 2% +111.2% 52048781 proc-vmstat.numa_local
19233 +7.0% 20587 proc-vmstat.pgactivate
93642540 ± 2% +258.2% 3.354e+08 proc-vmstat.pgalloc_normal
93561023 ± 2% +258.3% 3.352e+08 proc-vmstat.pgfree
26.98 ± 6% -8.8% 24.60 ± 2% perf-stat.i.MPKI
3.913e+09 ± 2% +9.7% 4.292e+09 perf-stat.i.branch-instructions
1.39 +0.1 1.52 perf-stat.i.branch-miss-rate%
54513120 +20.1% 65495253 perf-stat.i.branch-misses
6.32 ± 6% +14.8 21.14 ± 2% perf-stat.i.cache-miss-rate%
33974168 ± 3% +245.6% 1.174e+08 perf-stat.i.cache-misses
1923 +53.1% 2943 perf-stat.i.context-switches
2.37 ± 2% -8.8% 2.16 perf-stat.i.cpi
4.736e+10 +3.0% 4.879e+10 perf-stat.i.cpu-cycles
124.48 +149.0% 309.91 perf-stat.i.cpu-migrations
1399 ± 3% -70.2% 416.95 perf-stat.i.cycles-between-cache-misses
0.09 ± 2% -0.0 0.07 perf-stat.i.dTLB-load-miss-rate%
4979142 ± 3% -9.9% 4484285 perf-stat.i.dTLB-load-misses
5.496e+09 ± 2% +11.3% 6.12e+09 perf-stat.i.dTLB-loads
3.487e+09 ± 2% +13.7% 3.963e+09 perf-stat.i.dTLB-stores
47.74 ± 3% -11.2 36.50 perf-stat.i.iTLB-load-miss-rate%
3839118 ± 2% -8.6% 3508856 perf-stat.i.iTLB-load-misses
4222137 ± 4% +44.8% 6112207 perf-stat.i.iTLB-loads
2.006e+10 ± 2% +12.8% 2.262e+10 perf-stat.i.instructions
5231 +23.4% 6457 perf-stat.i.instructions-per-iTLB-miss
0.42 ± 2% +9.5% 0.46 perf-stat.i.ipc
0.46 +3.0% 0.47 perf-stat.i.metric.GHz
152.98 +243.5% 525.55 perf-stat.i.metric.K/sec
129.18 ± 2% +11.1% 143.54 perf-stat.i.metric.M/sec
4.45 ± 6% -1.3 3.15 ± 9% perf-stat.i.node-load-miss-rate%
165920 ± 5% +62.8% 270176 ± 10% perf-stat.i.node-load-misses
3567118 ± 3% +133.8% 8340048 perf-stat.i.node-loads
1.29 ± 11% -0.8 0.53 ± 13% perf-stat.i.node-store-miss-rate%
100988 ± 10% +105.0% 207062 ± 13% perf-stat.i.node-store-misses
7747689 ± 2% +410.5% 39548289 perf-stat.i.node-stores
26.93 ± 6% -8.8% 24.56 ± 2% perf-stat.overall.MPKI
1.39 +0.1 1.53 perf-stat.overall.branch-miss-rate%
6.32 ± 6% +14.8 21.14 ± 2% perf-stat.overall.cache-miss-rate%
2.36 ± 2% -8.7% 2.16 perf-stat.overall.cpi
1395 ± 3% -70.2% 415.55 perf-stat.overall.cycles-between-cache-misses
0.09 ± 2% -0.0 0.07 perf-stat.overall.dTLB-load-miss-rate%
47.64 ± 2% -11.2 36.47 perf-stat.overall.iTLB-load-miss-rate%
5223 +23.4% 6446 perf-stat.overall.instructions-per-iTLB-miss
0.42 ± 2% +9.5% 0.46 perf-stat.overall.ipc
4.45 ± 6% -1.3 3.14 ± 9% perf-stat.overall.node-load-miss-rate%
1.29 ± 11% -0.8 0.52 ± 13% perf-stat.overall.node-store-miss-rate%
5273317 +33.4% 7034229 perf-stat.overall.path-length
3.9e+09 ± 2% +9.7% 4.277e+09 perf-stat.ps.branch-instructions
54319018 +20.1% 65250768 perf-stat.ps.branch-misses
33859327 ± 3% +245.6% 1.17e+08 perf-stat.ps.cache-misses
1916 +53.1% 2933 perf-stat.ps.context-switches
4.72e+10 +3.0% 4.862e+10 perf-stat.ps.cpu-cycles
124.04 +149.0% 308.91 perf-stat.ps.cpu-migrations
4962883 ± 3% -10.0% 4468932 perf-stat.ps.dTLB-load-misses
5.477e+09 ± 2% +11.3% 6.098e+09 perf-stat.ps.dTLB-loads
3.475e+09 ± 2% +13.6% 3.95e+09 perf-stat.ps.dTLB-stores
3826238 ± 2% -8.6% 3496835 perf-stat.ps.iTLB-load-misses
4207943 ± 4% +44.8% 6091870 perf-stat.ps.iTLB-loads
1.999e+10 ± 2% +12.8% 2.254e+10 perf-stat.ps.instructions
165300 ± 5% +62.8% 269153 ± 10% perf-stat.ps.node-load-misses
3555089 ± 3% +133.8% 8312313 perf-stat.ps.node-loads
100616 ± 10% +105.1% 206337 ± 13% perf-stat.ps.node-store-misses
7721701 ± 2% +410.5% 39418013 perf-stat.ps.node-stores
6.033e+12 ± 2% +12.7% 6.802e+12 perf-stat.total.instructions
0.10 ± 33% +476.0% 0.57 ± 8% perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork
3.94 ± 15% +142.4% 9.55 ± 30% perf-sched.sch_delay.max.ms.smpboot_thread_fn.kthread.ret_from_fork
147.35 ± 2% -30.4% 102.60 ± 3% perf-sched.total_wait_and_delay.average.ms
6589 +55.3% 10232 perf-sched.total_wait_and_delay.count.ms
147.30 ± 2% -30.5% 102.37 ± 3% perf-sched.total_wait_time.average.ms
0.45 ± 21% +166.5% 1.20 ± 10% perf-sched.wait_and_delay.avg.ms.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.34 ± 16% +262.0% 1.24 ± 3% perf-sched.wait_and_delay.avg.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open
0.03 ±223% +3401.6% 1.11 ± 10% perf-sched.wait_and_delay.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open
0.06 ±223% +1645.0% 1.13 ± 13% perf-sched.wait_and_delay.avg.ms.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.06 ±223% +1863.7% 1.11 ± 3% perf-sched.wait_and_delay.avg.ms.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open
0.32 ± 18% +255.2% 1.13 ± 5% perf-sched.wait_and_delay.avg.ms.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat
0.35 ± 50% +247.3% 1.21 ± 9% perf-sched.wait_and_delay.avg.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
0.31 ± 39% +275.2% 1.16 ± 10% perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.31 ± 25% +268.5% 1.15 ± 7% perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
3.73 -15.7% 3.15 ± 5% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
521.10 ± 5% -56.7% 225.46 ± 4% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork
44.83 ± 9% +258.7% 160.83 ± 8% perf-sched.wait_and_delay.count.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64
107.17 ± 17% +45.3% 155.67 ± 4% perf-sched.wait_and_delay.count.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open
5.33 ±223% +2481.2% 137.67 ± 13% perf-sched.wait_and_delay.count.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open
5.50 ±223% +1233.3% 73.33 ± 6% perf-sched.wait_and_delay.count.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64
5.83 ±223% +1091.4% 69.50 ± 10% perf-sched.wait_and_delay.count.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open
93.67 ± 24% +305.3% 379.67 ± 4% perf-sched.wait_and_delay.count.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat
33.00 ± 48% +296.0% 130.67 ± 7% perf-sched.wait_and_delay.count.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
42.17 ± 12% +308.3% 172.17 ± 6% perf-sched.wait_and_delay.count.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
44.17 ± 10% +395.5% 218.83 ± 10% perf-sched.wait_and_delay.count.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
1336 +18.8% 1587 ± 6% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
1153 ± 3% +150.7% 2890 ± 2% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork
2.77 ± 10% +152.0% 6.98 ±101% perf-sched.wait_and_delay.max.ms.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64
2.58 ± 14% +281.7% 9.86 ± 89% perf-sched.wait_and_delay.max.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open
0.22 ±223% +1611.5% 3.77 ± 3% perf-sched.wait_and_delay.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open
0.44 ±223% +765.1% 3.79 ± 2% perf-sched.wait_and_delay.max.ms.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.42 ±223% +791.4% 3.75 ± 7% perf-sched.wait_and_delay.max.ms.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open
2.61 ± 13% +124.3% 5.85 ± 68% perf-sched.wait_and_delay.max.ms.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat
1.82 ± 46% +301.8% 7.30 ±106% perf-sched.wait_and_delay.max.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
2.11 ± 37% +84.4% 3.89 ± 2% perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
2.68 ± 52% -40.4% 1.59 ± 3% perf-sched.wait_and_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.05 ±158% +2025.6% 0.97 ± 44% perf-sched.wait_time.avg.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare
0.28 ±119% +202.7% 0.85 ± 38% perf-sched.wait_time.avg.ms.__cond_resched.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file
0.39 ± 85% +249.6% 1.35 ± 41% perf-sched.wait_time.avg.ms.__cond_resched.dentry_kill.dput.do_unlinkat.__x64_sys_unlink
0.41 ± 69% +203.9% 1.25 ± 30% perf-sched.wait_time.avg.ms.__cond_resched.down_write.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.26 ± 72% +331.6% 1.14 ± 15% perf-sched.wait_time.avg.ms.__cond_resched.down_write.open_last_lookups.path_openat.do_filp_open
0.37 ± 60% +265.4% 1.34 ± 18% perf-sched.wait_time.avg.ms.__cond_resched.down_write.vfs_unlink.do_unlinkat.__x64_sys_unlink
0.32 ± 54% +286.7% 1.23 ± 44% perf-sched.wait_time.avg.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop
0.45 ± 21% +166.5% 1.20 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.34 ± 16% +262.0% 1.24 ± 3% perf-sched.wait_time.avg.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open
0.30 ± 46% +308.9% 1.21 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.dput.shmem_unlink.vfs_unlink.do_unlinkat
0.48 ± 33% +152.9% 1.22 ± 6% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_openat.do_filp_open
0.39 ± 47% +186.6% 1.11 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open
0.35 ± 32% +247.3% 1.21 ± 7% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0
0.36 ± 46% +205.4% 1.11 ± 21% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file
0.37 ± 22% +202.2% 1.13 ± 13% perf-sched.wait_time.avg.ms.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.29 ± 31% +284.1% 1.11 ± 3% perf-sched.wait_time.avg.ms.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open
0.32 ± 18% +255.2% 1.13 ± 5% perf-sched.wait_time.avg.ms.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat
0.42 ± 20% +187.5% 1.21 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
0.33 ± 85% +228.8% 1.10 ± 30% perf-sched.wait_time.avg.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.31 ± 39% +275.1% 1.16 ± 10% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.31 ± 26% +269.6% 1.15 ± 7% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
3.72 -15.9% 3.13 ± 5% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
521.00 ± 5% -56.8% 224.89 ± 4% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork
0.11 ±192% +2041.9% 2.34 ± 50% perf-sched.wait_time.max.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare
0.39 ±131% +373.0% 1.86 ± 35% perf-sched.wait_time.max.ms.__cond_resched.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file
0.85 ± 86% +414.9% 4.38 ± 65% perf-sched.wait_time.max.ms.__cond_resched.dentry_kill.dput.do_unlinkat.__x64_sys_unlink
1.10 ± 56% +221.1% 3.54 ± 8% perf-sched.wait_time.max.ms.__cond_resched.down_write.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.79 ± 96% +270.2% 2.94 ± 29% perf-sched.wait_time.max.ms.__cond_resched.down_write.open_last_lookups.path_openat.do_filp_open
1.36 ± 41% +181.2% 3.83 ± 2% perf-sched.wait_time.max.ms.__cond_resched.down_write.vfs_unlink.do_unlinkat.__x64_sys_unlink
0.97 ± 61% +516.1% 5.98 ±104% perf-sched.wait_time.max.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop
2.77 ± 10% +152.0% 6.98 ±101% perf-sched.wait_time.max.ms.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64
2.58 ± 14% +281.7% 9.86 ± 89% perf-sched.wait_time.max.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open
1.25 ± 44% +457.7% 6.95 ±102% perf-sched.wait_time.max.ms.__cond_resched.dput.shmem_unlink.vfs_unlink.do_unlinkat
2.38 ± 30% +125.8% 5.38 ± 71% perf-sched.wait_time.max.ms.__cond_resched.dput.terminate_walk.path_openat.do_filp_open
2.08 ± 25% +81.3% 3.77 ± 3% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open
1.80 ± 22% +102.3% 3.65 ± 3% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0
1.62 ± 63% +116.0% 3.50 ± 10% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file
1.97 ± 28% +92.0% 3.79 ± 2% perf-sched.wait_time.max.ms.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64
2.15 ± 37% +74.3% 3.75 ± 7% perf-sched.wait_time.max.ms.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open
2.61 ± 13% +124.3% 5.85 ± 68% perf-sched.wait_time.max.ms.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat
2.14 ± 11% +241.1% 7.30 ±106% perf-sched.wait_time.max.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
1.05 ± 92% +213.1% 3.29 ± 13% perf-sched.wait_time.max.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
2.11 ± 37% +84.4% 3.89 ± 2% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
2.61 ± 54% -39.4% 1.58 ± 3% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
26.45 ± 2% -2.1 24.32 perf-profile.calltrace.cycles-pp.unlink
12.59 ± 8% -2.1 10.49 ± 2% perf-profile.calltrace.cycles-pp.shmem_get_inode.shmem_mknod.lookup_open.open_last_lookups.path_openat
24.50 ± 2% -1.9 22.62 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.unlink
23.89 ± 2% -1.8 22.10 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink
9.52 ± 11% -1.7 7.85 ± 3% perf-profile.calltrace.cycles-pp.new_inode.shmem_get_inode.shmem_mknod.lookup_open.open_last_lookups
22.73 ± 2% -1.6 21.09 perf-profile.calltrace.cycles-pp.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink
21.93 ± 2% -1.5 20.40 perf-profile.calltrace.cycles-pp.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink
27.94 ± 2% -1.3 26.65 perf-profile.calltrace.cycles-pp.intel_idle_ibrs.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
8.02 ± 2% -1.0 7.06 ± 4% perf-profile.calltrace.cycles-pp.__close
3.26 ± 11% -0.8 2.50 ± 2% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
6.07 ± 4% -0.7 5.38 ± 5% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
2.66 ± 11% -0.6 2.04 ± 2% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
2.90 -0.5 2.37 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
2.25 ± 3% -0.5 1.75 ± 2% perf-profile.calltrace.cycles-pp.path_parentat.__filename_parentat.do_unlinkat.__x64_sys_unlink.do_syscall_64
2.40 ± 3% -0.4 1.95 ± 2% perf-profile.calltrace.cycles-pp.__filename_parentat.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.76 ± 6% -0.4 1.34 ± 2% perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
2.60 ± 7% -0.4 2.20 ± 2% perf-profile.calltrace.cycles-pp.alloc_inode.new_inode.shmem_get_inode.shmem_mknod.lookup_open
1.95 ± 3% -0.4 1.57 perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
1.76 ± 7% -0.4 1.38 ± 3% perf-profile.calltrace.cycles-pp.link_path_walk.path_parentat.__filename_parentat.do_unlinkat.__x64_sys_unlink
1.90 ± 3% -0.4 1.54 perf-profile.calltrace.cycles-pp.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.38 ± 15% -0.3 1.04 ± 3% perf-profile.calltrace.cycles-pp.destroy_inode.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.77 ± 4% -0.3 1.42 perf-profile.calltrace.cycles-pp.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.68 ± 11% -0.3 0.35 ± 70% perf-profile.calltrace.cycles-pp.apparmor_path_unlink.security_path_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.67 ± 17% -0.3 0.34 ± 70% perf-profile.calltrace.cycles-pp.may_delete.vfs_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64
1.18 ± 9% -0.3 0.86 ± 4% perf-profile.calltrace.cycles-pp.__destroy_inode.destroy_inode.do_unlinkat.__x64_sys_unlink.do_syscall_64
1.06 ± 9% -0.3 0.75 ± 3% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_openat.do_filp_open.do_sys_openat2
1.00 ± 9% -0.3 0.69 ± 3% perf-profile.calltrace.cycles-pp.generic_permission.inode_permission.link_path_walk.path_openat.do_filp_open
1.45 ± 5% -0.3 1.15 ± 2% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
1.12 ± 11% -0.3 0.86 ± 2% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_parentat.__filename_parentat.do_unlinkat
1.06 ± 12% -0.2 0.81 ± 3% perf-profile.calltrace.cycles-pp.generic_permission.inode_permission.link_path_walk.path_parentat.__filename_parentat
1.24 ± 2% -0.2 1.00 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__open64
0.93 ± 11% -0.2 0.70 perf-profile.calltrace.cycles-pp.inode_wait_for_writeback.evict.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.90 ± 11% -0.2 0.67 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock.inode_wait_for_writeback.evict.do_unlinkat.__x64_sys_unlink
1.66 ± 2% -0.2 1.44 ± 2% perf-profile.calltrace.cycles-pp.shmem_alloc_inode.alloc_inode.new_inode.shmem_get_inode.shmem_mknod
1.64 ± 3% -0.2 1.42 ± 2% perf-profile.calltrace.cycles-pp.kmem_cache_alloc_lru.shmem_alloc_inode.alloc_inode.new_inode.shmem_get_inode
0.63 ± 4% -0.2 0.43 ± 44% perf-profile.calltrace.cycles-pp.simple_lookup.lookup_open.open_last_lookups.path_openat.do_filp_open
2.02 ± 4% -0.2 1.82 ± 2% perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
1.12 ± 4% -0.2 0.92 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__close
1.14 ± 4% -0.2 0.96 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__open64
1.12 ± 4% -0.2 0.94 ± 4% perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.unlink
0.69 ± 12% -0.2 0.52 ± 3% perf-profile.calltrace.cycles-pp.security_path_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.02 ± 3% -0.2 0.86 ± 3% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink
1.23 ± 6% -0.1 1.10 ± 4% perf-profile.calltrace.cycles-pp.init_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
1.13 ± 5% -0.1 1.00 perf-profile.calltrace.cycles-pp.__d_alloc.d_alloc.d_alloc_parallel.lookup_open.open_last_lookups
1.48 ± 3% -0.1 1.36 perf-profile.calltrace.cycles-pp.d_alloc_parallel.lookup_open.open_last_lookups.path_openat.do_filp_open
0.87 ± 6% -0.1 0.76 ± 5% perf-profile.calltrace.cycles-pp.try_to_unlazy.open_last_lookups.path_openat.do_filp_open.do_sys_openat2
0.82 ± 6% -0.1 0.72 ± 5% perf-profile.calltrace.cycles-pp.__legitimize_path.try_to_unlazy.open_last_lookups.path_openat.do_filp_open
0.71 ± 4% -0.1 0.61 ± 5% perf-profile.calltrace.cycles-pp.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat.__x64_sys_unlink
0.66 ± 9% -0.1 0.56 ± 6% perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open
0.71 ± 3% -0.1 0.62 ± 4% perf-profile.calltrace.cycles-pp.getname_flags.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink
0.71 ± 4% -0.1 0.61 ± 3% perf-profile.calltrace.cycles-pp.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.shmem_alloc_inode.alloc_inode
0.66 ± 4% -0.1 0.57 ± 4% perf-profile.calltrace.cycles-pp.slab_pre_alloc_hook.kmem_cache_alloc_lru.shmem_alloc_inode.alloc_inode.new_inode
0.72 ± 4% -0.1 0.63 ± 3% perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_lru.shmem_alloc_inode.alloc_inode.new_inode
0.67 ± 4% -0.1 0.57 ± 3% perf-profile.calltrace.cycles-pp.shuffle_freelist.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.shmem_alloc_inode
0.81 ± 7% -0.1 0.72 ± 2% perf-profile.calltrace.cycles-pp.terminate_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
0.69 ± 5% -0.1 0.60 ± 2% perf-profile.calltrace.cycles-pp.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.62 ± 5% -0.1 0.53 ± 3% perf-profile.calltrace.cycles-pp.inode_init_once.shuffle_freelist.allocate_slab.___slab_alloc.kmem_cache_alloc_lru
0.68 ± 3% -0.1 0.60 ± 2% perf-profile.calltrace.cycles-pp.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.79 ± 2% -0.1 0.73 ± 2% perf-profile.calltrace.cycles-pp.kmem_cache_alloc_lru.__d_alloc.d_alloc.d_alloc_parallel.lookup_open
0.92 ± 5% +0.2 1.13 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock.shmem_evict_inode.evict.do_unlinkat.__x64_sys_unlink
0.77 ± 6% +0.2 1.00 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.shmem_evict_inode.evict.do_unlinkat
0.27 ±100% +0.6 0.84 ± 4% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock.inode_sb_list_add.new_inode
0.27 ±100% +0.6 0.84 ± 4% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock.inode_sb_list_add
1.05 ± 7% +0.6 1.63 ± 9% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call
1.13 ± 7% +0.6 1.72 ± 9% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
0.00 +0.6 0.62 ± 13% perf-profile.calltrace.cycles-pp.__slab_free.rcu_do_batch.rcu_core.__do_softirq.__irq_exit_rcu
0.00 +0.7 0.65 ± 4% perf-profile.calltrace.cycles-pp.kmem_cache_free.rcu_do_batch.rcu_core.__do_softirq.run_ksoftirqd
0.00 +0.7 0.67 ± 6% perf-profile.calltrace.cycles-pp.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
4.07 ± 12% +0.7 4.76 perf-profile.calltrace.cycles-pp.vfs_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.7 0.70 ± 7% perf-profile.calltrace.cycles-pp.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
0.20 ±141% +1.0 1.16 ± 10% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock.evict.do_unlinkat
0.20 ±141% +1.0 1.16 ± 10% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock.evict
0.00 +1.0 0.99 ± 2% perf-profile.calltrace.cycles-pp.__call_rcu_common.xas_store.__xa_erase.xa_erase.simple_offset_remove
0.00 +1.3 1.32 perf-profile.calltrace.cycles-pp.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.xas_alloc.xas_create
1.41 ± 10% +1.3 2.74 perf-profile.calltrace.cycles-pp.shmem_unlink.vfs_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64
0.00 +1.4 1.36 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_lru.xas_alloc.xas_create.xas_store
0.00 +1.5 1.53 ± 3% perf-profile.calltrace.cycles-pp.xas_store.__xa_erase.xa_erase.simple_offset_remove.shmem_unlink
0.00 +1.5 1.55 ± 2% perf-profile.calltrace.cycles-pp.__xa_erase.xa_erase.simple_offset_remove.shmem_unlink.vfs_unlink
0.37 ±112% +1.6 1.95 ± 7% perf-profile.calltrace.cycles-pp.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock
0.37 ±112% +1.6 1.95 ± 7% perf-profile.calltrace.cycles-pp.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath
0.00 +1.6 1.61 ± 2% perf-profile.calltrace.cycles-pp.xa_erase.simple_offset_remove.shmem_unlink.vfs_unlink.do_unlinkat
0.00 +1.6 1.63 ± 2% perf-profile.calltrace.cycles-pp.simple_offset_remove.shmem_unlink.vfs_unlink.do_unlinkat.__x64_sys_unlink
0.00 +1.7 1.68 ± 4% perf-profile.calltrace.cycles-pp.__slab_free.rcu_do_batch.rcu_core.__do_softirq.run_ksoftirqd
0.00 +1.7 1.71 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_lru.xas_alloc.xas_create.xas_store.__xa_alloc
0.00 +1.8 1.82 perf-profile.calltrace.cycles-pp.xas_alloc.xas_create.xas_store.__xa_alloc.__xa_alloc_cyclic
0.37 ±112% +1.9 2.22 ± 13% perf-profile.calltrace.cycles-pp.rcu_do_batch.rcu_core.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt
0.37 ±112% +1.9 2.23 ± 13% perf-profile.calltrace.cycles-pp.rcu_core.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.00 +2.1 2.10 perf-profile.calltrace.cycles-pp.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.xas_alloc.xas_expand
0.00 +2.2 2.16 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_lru.xas_alloc.xas_expand.xas_create
19.64 ± 3% +2.4 22.08 perf-profile.calltrace.cycles-pp.open_last_lookups.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
0.00 +2.7 2.68 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_lru.xas_alloc.xas_expand.xas_create.xas_store
0.00 +2.8 2.84 perf-profile.calltrace.cycles-pp.xas_alloc.xas_expand.xas_create.xas_store.__xa_alloc
0.00 +3.0 2.98 perf-profile.calltrace.cycles-pp.radix_tree_node_ctor.shuffle_freelist.allocate_slab.___slab_alloc.kmem_cache_alloc_lru
17.20 ± 4% +3.0 20.21 perf-profile.calltrace.cycles-pp.lookup_open.open_last_lookups.path_openat.do_filp_open.do_sys_openat2
0.00 +3.2 3.16 perf-profile.calltrace.cycles-pp.xas_expand.xas_create.xas_store.__xa_alloc.__xa_alloc_cyclic
0.00 +3.3 3.30 perf-profile.calltrace.cycles-pp.shuffle_freelist.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.xas_alloc
0.00 +3.6 3.59 ± 4% perf-profile.calltrace.cycles-pp.rcu_do_batch.rcu_core.__do_softirq.run_ksoftirqd.smpboot_thread_fn
0.00 +3.6 3.60 ± 4% perf-profile.calltrace.cycles-pp.rcu_core.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread
0.00 +3.6 3.60 ± 4% perf-profile.calltrace.cycles-pp.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork
0.00 +3.6 3.60 ± 4% perf-profile.calltrace.cycles-pp.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork
0.00 +3.6 3.62 ± 4% perf-profile.calltrace.cycles-pp.smpboot_thread_fn.kthread.ret_from_fork
0.00 +3.7 3.66 ± 4% perf-profile.calltrace.cycles-pp.ret_from_fork
0.00 +3.7 3.66 ± 4% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork
13.57 ± 6% +3.7 17.24 perf-profile.calltrace.cycles-pp.shmem_mknod.lookup_open.open_last_lookups.path_openat.do_filp_open
0.00 +5.3 5.34 perf-profile.calltrace.cycles-pp.xas_create.xas_store.__xa_alloc.__xa_alloc_cyclic.simple_offset_add
0.00 +5.4 5.43 perf-profile.calltrace.cycles-pp.xas_store.__xa_alloc.__xa_alloc_cyclic.simple_offset_add.shmem_mknod
0.00 +5.5 5.53 perf-profile.calltrace.cycles-pp.__xa_alloc.__xa_alloc_cyclic.simple_offset_add.shmem_mknod.lookup_open
0.00 +5.6 5.57 perf-profile.calltrace.cycles-pp.__xa_alloc_cyclic.simple_offset_add.shmem_mknod.lookup_open.open_last_lookups
0.00 +5.7 5.66 perf-profile.calltrace.cycles-pp.simple_offset_add.shmem_mknod.lookup_open.open_last_lookups.path_openat
64.05 -2.4 61.65 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
26.54 ± 2% -2.1 24.39 perf-profile.children.cycles-pp.unlink
12.60 ± 7% -2.1 10.50 ± 2% perf-profile.children.cycles-pp.shmem_get_inode
62.12 -2.1 60.04 perf-profile.children.cycles-pp.do_syscall_64
9.52 ± 11% -1.7 7.85 ± 3% perf-profile.children.cycles-pp.new_inode
22.73 ± 2% -1.6 21.10 perf-profile.children.cycles-pp.__x64_sys_unlink
21.95 ± 2% -1.5 20.42 perf-profile.children.cycles-pp.do_unlinkat
28.01 ± 2% -1.3 26.71 perf-profile.children.cycles-pp.intel_idle_ibrs
8.10 ± 2% -1.0 7.13 ± 4% perf-profile.children.cycles-pp.__close
5.19 -0.9 4.25 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
3.40 ± 14% -0.9 2.54 ± 2% perf-profile.children.cycles-pp.inode_permission
3.54 ± 6% -0.8 2.74 ± 2% perf-profile.children.cycles-pp.link_path_walk
3.26 ± 10% -0.8 2.50 ± 2% perf-profile.children.cycles-pp.do_open
2.71 ± 10% -0.7 1.98 ± 2% perf-profile.children.cycles-pp.generic_permission
2.66 ± 11% -0.6 2.04 ± 2% perf-profile.children.cycles-pp.do_dentry_open
3.43 ± 4% -0.6 2.86 perf-profile.children.cycles-pp.syscall_return_via_sysret
2.26 ± 3% -0.5 1.76 ± 2% perf-profile.children.cycles-pp.path_parentat
2.40 ± 3% -0.4 1.96 perf-profile.children.cycles-pp.__filename_parentat
2.60 ± 8% -0.4 2.20 ± 2% perf-profile.children.cycles-pp.alloc_inode
1.98 ± 3% -0.4 1.61 perf-profile.children.cycles-pp.exit_to_user_mode_prepare
1.92 ± 3% -0.4 1.55 perf-profile.children.cycles-pp.exit_to_user_mode_loop
1.36 ± 23% -0.4 1.00 ± 4% perf-profile.children.cycles-pp.__mnt_want_write
1.38 ± 15% -0.3 1.04 ± 3% perf-profile.children.cycles-pp.destroy_inode
1.78 ± 4% -0.3 1.43 perf-profile.children.cycles-pp.task_work_run
1.38 ± 20% -0.3 1.05 ± 2% perf-profile.children.cycles-pp.mnt_want_write
1.18 ± 9% -0.3 0.87 ± 4% perf-profile.children.cycles-pp.__destroy_inode
1.46 ± 5% -0.3 1.16 perf-profile.children.cycles-pp.__fput
1.65 ± 3% -0.3 1.38 perf-profile.children.cycles-pp.__entry_text_start
0.75 ± 2% -0.2 0.51 ± 2% perf-profile.children.cycles-pp.file_free_rcu
0.93 ± 11% -0.2 0.70 ± 2% perf-profile.children.cycles-pp.inode_wait_for_writeback
1.66 ± 2% -0.2 1.44 ± 2% perf-profile.children.cycles-pp.shmem_alloc_inode
0.58 ± 10% -0.2 0.38 ± 5% perf-profile.children.cycles-pp.inode_init_owner
2.02 ± 4% -0.2 1.82 perf-profile.children.cycles-pp.alloc_empty_file
1.69 ± 4% -0.2 1.50 ± 2% perf-profile.children.cycles-pp.dput
1.41 ± 4% -0.2 1.23 ± 2% perf-profile.children.cycles-pp.getname_flags
0.52 ± 12% -0.2 0.34 ± 5% perf-profile.children.cycles-pp.drop_nlink
0.69 ± 12% -0.2 0.52 ± 3% perf-profile.children.cycles-pp.security_path_unlink
0.68 ± 11% -0.2 0.51 ± 3% perf-profile.children.cycles-pp.apparmor_path_unlink
0.68 ± 18% -0.2 0.51 ± 4% perf-profile.children.cycles-pp.may_delete
0.56 ± 8% -0.1 0.41 ± 10% perf-profile.children.cycles-pp.filp_close
1.24 ± 6% -0.1 1.10 ± 4% perf-profile.children.cycles-pp.init_file
0.89 ± 3% -0.1 0.76 ± 2% perf-profile.children.cycles-pp.inode_maybe_inc_iversion
0.56 ± 9% -0.1 0.42 ± 3% perf-profile.children.cycles-pp.may_open
0.94 ± 4% -0.1 0.81 ± 3% perf-profile.children.cycles-pp.strncpy_from_user
1.05 ± 5% -0.1 0.92 ± 4% perf-profile.children.cycles-pp.try_to_unlazy
0.98 ± 5% -0.1 0.85 ± 4% perf-profile.children.cycles-pp.__legitimize_path
0.69 ± 10% -0.1 0.57 ± 5% perf-profile.children.cycles-pp.iput
0.64 ± 4% -0.1 0.52 ± 2% perf-profile.children.cycles-pp.simple_lookup
1.48 ± 3% -0.1 1.36 perf-profile.children.cycles-pp.d_alloc_parallel
0.38 ± 12% -0.1 0.26 ± 16% perf-profile.children.cycles-pp.locks_remove_posix
0.36 ± 17% -0.1 0.25 ± 8% perf-profile.children.cycles-pp.fsnotify_perm
0.36 ± 8% -0.1 0.26 ± 6% perf-profile.children.cycles-pp.security_path_mknod
0.72 ± 4% -0.1 0.62 ± 4% perf-profile.children.cycles-pp.shmem_undo_range
0.67 ± 9% -0.1 0.56 ± 6% perf-profile.children.cycles-pp.security_file_alloc
0.34 ± 9% -0.1 0.24 ± 9% perf-profile.children.cycles-pp.apparmor_path_mknod
1.34 ± 3% -0.1 1.25 perf-profile.children.cycles-pp.d_alloc
0.62 ± 4% -0.1 0.53 ± 4% perf-profile.children.cycles-pp.__check_object_size
0.70 ± 5% -0.1 0.60 ± 3% perf-profile.children.cycles-pp.memcg_list_lru_alloc
0.29 ± 5% -0.1 0.20 ± 6% perf-profile.children.cycles-pp._atomic_dec_and_lock
0.52 ± 10% -0.1 0.43 ± 5% perf-profile.children.cycles-pp.apparmor_file_open
0.87 ± 7% -0.1 0.78 ± 3% perf-profile.children.cycles-pp.terminate_walk
0.54 ± 10% -0.1 0.45 ± 5% perf-profile.children.cycles-pp.security_file_open
0.55 ± 11% -0.1 0.47 ± 6% perf-profile.children.cycles-pp.apparmor_file_alloc_security
0.62 ± 4% -0.1 0.54 ± 3% perf-profile.children.cycles-pp.inode_init_once
0.24 ± 22% -0.1 0.16 ± 4% perf-profile.children.cycles-pp.__legitimize_mnt
0.48 ± 4% -0.1 0.40 ± 7% perf-profile.children.cycles-pp._raw_spin_lock_irq
0.50 ± 6% -0.1 0.42 ± 4% perf-profile.children.cycles-pp.__list_add_valid
0.40 ± 3% -0.1 0.33 ± 2% perf-profile.children.cycles-pp.__d_add
0.41 ± 4% -0.1 0.34 ± 8% perf-profile.children.cycles-pp.clear_inode
0.34 ± 3% -0.1 0.29 ± 2% perf-profile.children.cycles-pp.lockref_put_or_lock
0.44 ± 5% -0.1 0.38 ± 4% perf-profile.children.cycles-pp.dentry_kill
0.45 ± 4% -0.1 0.40 ± 2% perf-profile.children.cycles-pp.mod_objcg_state
0.38 ± 4% -0.1 0.33 ± 5% perf-profile.children.cycles-pp.check_heap_object
0.33 ± 8% -0.0 0.28 ± 5% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
0.30 ± 3% -0.0 0.25 ± 4% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.33 ± 10% -0.0 0.28 ± 7% perf-profile.children.cycles-pp.xa_load
0.28 ± 4% -0.0 0.23 ± 4% perf-profile.children.cycles-pp.walk_component
0.28 ± 5% -0.0 0.24 ± 6% perf-profile.children.cycles-pp.__virt_addr_valid
0.10 ± 17% -0.0 0.06 ± 15% perf-profile.children.cycles-pp._find_next_zero_bit
0.14 ± 5% -0.0 0.11 ± 7% perf-profile.children.cycles-pp.d_lookup
0.17 ± 14% -0.0 0.14 ± 5% perf-profile.children.cycles-pp.errseq_sample
0.07 ± 5% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.find_lock_entries
0.24 ± 5% -0.0 0.21 ± 8% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.17 ± 9% -0.0 0.13 ± 7% perf-profile.children.cycles-pp.__check_heap_object
0.22 ± 4% -0.0 0.19 ± 5% perf-profile.children.cycles-pp.lookup_fast
0.14 ± 5% -0.0 0.11 ± 6% perf-profile.children.cycles-pp.lookup_one_qstr_excl
0.23 ± 4% -0.0 0.20 perf-profile.children.cycles-pp.shmem_get_partial_folio
0.14 ± 14% -0.0 0.12 ± 6% perf-profile.children.cycles-pp.__srcu_read_lock
0.12 ± 4% -0.0 0.10 ± 10% perf-profile.children.cycles-pp.__d_lookup
0.13 ± 8% -0.0 0.10 ± 10% perf-profile.children.cycles-pp.lookup_dcache
0.16 ± 6% -0.0 0.14 ± 5% perf-profile.children.cycles-pp.down_write
0.11 ± 10% -0.0 0.08 ± 7% perf-profile.children.cycles-pp.set_cached_acl
0.14 ± 3% -0.0 0.12 ± 3% perf-profile.children.cycles-pp.fput
0.15 ± 5% -0.0 0.12 ± 4% perf-profile.children.cycles-pp.filemap_get_entry
0.13 ± 8% -0.0 0.11 ± 6% perf-profile.children.cycles-pp.find_get_entries
0.10 ± 5% -0.0 0.08 ± 6% perf-profile.children.cycles-pp.xas_find
0.09 ± 5% -0.0 0.07 ± 9% perf-profile.children.cycles-pp.__d_lookup_unhash
0.07 ± 9% +0.0 0.09 ± 12% perf-profile.children.cycles-pp.rebalance_domains
0.16 ± 3% +0.0 0.18 ± 5% perf-profile.children.cycles-pp.d_instantiate
0.10 ± 6% +0.0 0.13 ± 5% perf-profile.children.cycles-pp.__d_instantiate
0.07 ± 15% +0.0 0.10 ± 8% perf-profile.children.cycles-pp.perf_rotate_context
0.06 ± 13% +0.0 0.09 ± 12% perf-profile.children.cycles-pp.irqtime_account_irq
0.04 ± 45% +0.0 0.08 ± 10% perf-profile.children.cycles-pp.arch_scale_freq_tick
0.06 ± 11% +0.0 0.10 ± 11% perf-profile.children.cycles-pp.load_balance
0.11 ± 16% +0.0 0.16 ± 6% perf-profile.children.cycles-pp.perf_mux_hrtimer_handler
0.02 ± 99% +0.0 0.07 ± 11% perf-profile.children.cycles-pp.native_sched_clock
0.02 ± 99% +0.0 0.08 ± 12% perf-profile.children.cycles-pp.find_busiest_group
0.00 +0.1 0.06 ± 11% perf-profile.children.cycles-pp.update_sg_lb_stats
0.02 ±141% +0.1 0.08 ± 12% perf-profile.children.cycles-pp.update_sd_lb_stats
0.28 ± 5% +0.1 0.34 ± 6% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.00 +0.1 0.06 ± 14% perf-profile.children.cycles-pp.update_load_avg
0.00 +0.1 0.07 ± 7% perf-profile.children.cycles-pp.xas_clear_mark
0.00 +0.1 0.07 ± 11% perf-profile.children.cycles-pp.rmqueue_bulk
0.14 ± 8% +0.1 0.21 ± 5% perf-profile.children.cycles-pp.lockref_get
0.00 +0.1 0.08 ± 8% perf-profile.children.cycles-pp.__free_one_page
0.01 ±223% +0.1 0.10 ± 9% perf-profile.children.cycles-pp.rmqueue
0.06 ± 13% +0.1 0.16 ± 4% perf-profile.children.cycles-pp.__alloc_pages
0.04 ± 45% +0.1 0.15 ± 4% perf-profile.children.cycles-pp.get_page_from_freelist
0.09 ± 10% +0.1 0.20 ± 6% perf-profile.children.cycles-pp.xas_load
0.04 ± 71% +0.1 0.15 ± 14% perf-profile.children.cycles-pp.task_tick_fair
0.07 +0.1 0.21 ± 3% perf-profile.children.cycles-pp.rcu_nocb_try_bypass
0.00 +0.2 0.15 ± 3% perf-profile.children.cycles-pp.i_callback
0.22 ± 5% +0.2 0.40 ± 4% perf-profile.children.cycles-pp.scheduler_tick
0.13 ± 10% +0.2 0.32 ± 6% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
0.07 ± 14% +0.2 0.27 ± 2% perf-profile.children.cycles-pp.free_pcppages_bulk
0.39 ± 6% +0.2 0.63 ± 4% perf-profile.children.cycles-pp.update_process_times
0.15 ± 8% +0.2 0.40 ± 3% perf-profile.children.cycles-pp.__unfreeze_partials
0.09 ± 13% +0.2 0.34 ± 2% perf-profile.children.cycles-pp.free_unref_page
0.41 ± 6% +0.2 0.66 ± 5% perf-profile.children.cycles-pp.tick_sched_handle
0.47 ± 5% +0.3 0.74 ± 4% perf-profile.children.cycles-pp.tick_sched_timer
0.14 ± 6% +0.3 0.44 perf-profile.children.cycles-pp.rcu_segcblist_enqueue
0.04 ± 71% +0.3 0.33 ± 6% perf-profile.children.cycles-pp.intel_idle
0.00 +0.4 0.36 ± 4% perf-profile.children.cycles-pp.xas_descend
0.71 ± 6% +0.4 1.08 ± 4% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.85 ± 6% +0.4 1.28 ± 5% perf-profile.children.cycles-pp.hrtimer_interrupt
0.87 ± 6% +0.4 1.31 ± 5% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.66 ± 4% +0.5 1.15 ± 2% perf-profile.children.cycles-pp.rcu_cblist_dequeue
0.00 +0.7 0.68 perf-profile.children.cycles-pp.radix_tree_node_rcu_free
4.08 ± 12% +0.7 4.77 perf-profile.children.cycles-pp.vfs_unlink
0.92 ± 3% +0.8 1.75 ± 2% perf-profile.children.cycles-pp.kmem_cache_free
0.54 ± 4% +0.9 1.49 ± 2% perf-profile.children.cycles-pp.__call_rcu_common
1.41 ± 10% +1.3 2.75 perf-profile.children.cycles-pp.shmem_unlink
0.00 +1.6 1.56 ± 3% perf-profile.children.cycles-pp.__xa_erase
0.00 +1.6 1.61 ± 2% perf-profile.children.cycles-pp.xa_erase
0.00 +1.6 1.63 ± 2% perf-profile.children.cycles-pp.simple_offset_remove
19.65 ± 3% +2.4 22.09 perf-profile.children.cycles-pp.open_last_lookups
0.00 +3.0 3.00 perf-profile.children.cycles-pp.radix_tree_node_ctor
17.21 ± 4% +3.0 20.22 perf-profile.children.cycles-pp.lookup_open
0.00 +3.2 3.16 perf-profile.children.cycles-pp.xas_expand
0.71 ± 4% +3.2 3.91 perf-profile.children.cycles-pp.shuffle_freelist
0.82 ± 4% +3.3 4.15 perf-profile.children.cycles-pp.allocate_slab
3.59 ± 3% +3.3 6.92 ± 2% perf-profile.children.cycles-pp.__irq_exit_rcu
0.23 ± 13% +3.4 3.60 ± 4% perf-profile.children.cycles-pp.run_ksoftirqd
0.24 ± 13% +3.4 3.62 ± 4% perf-profile.children.cycles-pp.smpboot_thread_fn
0.26 ± 11% +3.4 3.66 ± 4% perf-profile.children.cycles-pp.ret_from_fork
0.26 ± 11% +3.4 3.66 ± 4% perf-profile.children.cycles-pp.kthread
0.89 ± 3% +3.4 4.29 perf-profile.children.cycles-pp.___slab_alloc
13.57 ± 6% +3.7 17.24 perf-profile.children.cycles-pp.shmem_mknod
4.62 ± 2% +3.8 8.40 ± 2% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
4.74 ± 2% +3.8 8.56 ± 2% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
2.43 ± 2% +4.1 6.56 perf-profile.children.cycles-pp.kmem_cache_alloc_lru
0.89 ± 4% +4.3 5.21 ± 2% perf-profile.children.cycles-pp.__slab_free
0.00 +4.7 4.68 perf-profile.children.cycles-pp.xas_alloc
0.00 +5.3 5.35 perf-profile.children.cycles-pp.xas_create
0.00 +5.5 5.54 perf-profile.children.cycles-pp.__xa_alloc
0.00 +5.6 5.57 perf-profile.children.cycles-pp.__xa_alloc_cyclic
0.00 +5.7 5.66 perf-profile.children.cycles-pp.simple_offset_add
3.66 ± 3% +6.6 10.29 perf-profile.children.cycles-pp.rcu_do_batch
3.66 ± 3% +6.7 10.32 perf-profile.children.cycles-pp.rcu_core
3.79 ± 3% +6.7 10.48 perf-profile.children.cycles-pp.__do_softirq
0.00 +7.0 6.97 perf-profile.children.cycles-pp.xas_store
13.91 ± 14% -2.4 11.56 ± 4% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
28.01 ± 2% -1.3 26.71 perf-profile.self.cycles-pp.intel_idle_ibrs
4.33 ± 4% -0.8 3.54 perf-profile.self.cycles-pp._raw_spin_lock
2.52 ± 11% -0.7 1.80 ± 3% perf-profile.self.cycles-pp.generic_permission
3.43 ± 4% -0.6 2.85 perf-profile.self.cycles-pp.syscall_return_via_sysret
3.18 ± 2% -0.6 2.61 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
1.31 ± 24% -0.4 0.94 ± 4% perf-profile.self.cycles-pp.__mnt_want_write
1.96 ± 2% -0.3 1.64 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.95 ± 9% -0.3 0.64 ± 4% perf-profile.self.cycles-pp.__destroy_inode
0.75 ± 2% -0.2 0.50 ± 2% perf-profile.self.cycles-pp.file_free_rcu
1.44 ± 3% -0.2 1.21 perf-profile.self.cycles-pp.__entry_text_start
0.64 ± 12% -0.2 0.40 ± 3% perf-profile.self.cycles-pp.vfs_unlink
0.62 ± 7% -0.2 0.40 ± 5% perf-profile.self.cycles-pp.do_dentry_open
0.55 ± 9% -0.2 0.34 ± 3% perf-profile.self.cycles-pp.inode_init_owner
0.64 ± 7% -0.2 0.43 ± 5% perf-profile.self.cycles-pp.__fput
0.45 ± 9% -0.2 0.26 ± 5% perf-profile.self.cycles-pp.open_last_lookups
0.62 ± 17% -0.2 0.43 ± 4% perf-profile.self.cycles-pp.lookup_open
0.80 ± 8% -0.2 0.62 ± 3% perf-profile.self.cycles-pp.shmem_get_inode
0.64 ± 12% -0.2 0.46 ± 2% perf-profile.self.cycles-pp.apparmor_path_unlink
0.50 ± 11% -0.2 0.32 ± 6% perf-profile.self.cycles-pp.drop_nlink
0.70 ± 7% -0.2 0.53 ± 3% perf-profile.self.cycles-pp.link_path_walk
0.86 ± 4% -0.2 0.70 ± 4% perf-profile.self.cycles-pp.inode_maybe_inc_iversion
0.36 ± 11% -0.1 0.24 ± 16% perf-profile.self.cycles-pp.locks_remove_posix
0.30 ± 19% -0.1 0.18 ± 22% perf-profile.self.cycles-pp.alloc_fd
0.34 ± 15% -0.1 0.23 ± 8% perf-profile.self.cycles-pp.fsnotify_perm
0.50 ± 11% -0.1 0.40 ± 4% perf-profile.self.cycles-pp.apparmor_file_open
0.32 ± 9% -0.1 0.22 ± 8% perf-profile.self.cycles-pp.apparmor_path_mknod
0.44 ± 16% -0.1 0.34 ± 4% perf-profile.self.cycles-pp.shmem_evict_inode
0.30 ± 5% -0.1 0.20 ± 7% perf-profile.self.cycles-pp.may_delete
0.52 ± 11% -0.1 0.42 ± 6% perf-profile.self.cycles-pp.apparmor_file_alloc_security
0.21 ± 34% -0.1 0.12 ± 6% perf-profile.self.cycles-pp.dput
0.59 ± 5% -0.1 0.51 ± 3% perf-profile.self.cycles-pp.inode_init_once
0.48 ± 6% -0.1 0.40 ± 5% perf-profile.self.cycles-pp.__list_add_valid
0.47 ± 4% -0.1 0.39 ± 7% perf-profile.self.cycles-pp._raw_spin_lock_irq
0.23 ± 24% -0.1 0.15 ± 6% perf-profile.self.cycles-pp.__legitimize_mnt
0.28 ± 3% -0.1 0.21 ± 2% perf-profile.self.cycles-pp.lockref_put_or_lock
0.41 ± 4% -0.1 0.35 ± 3% perf-profile.self.cycles-pp.mod_objcg_state
0.28 ± 15% -0.1 0.23 ± 8% perf-profile.self.cycles-pp.mnt_drop_write
0.18 ± 17% -0.1 0.12 ± 14% perf-profile.self.cycles-pp.xa_load
0.31 ± 7% -0.1 0.26 ± 5% perf-profile.self.cycles-pp.strncpy_from_user
0.20 ± 15% -0.1 0.15 ± 8% perf-profile.self.cycles-pp.simple_lookup
0.19 ± 3% -0.1 0.14 ± 9% perf-profile.self.cycles-pp._atomic_dec_and_lock
0.44 ± 5% -0.0 0.39 ± 5% perf-profile.self.cycles-pp.kmem_cache_alloc
0.34 ± 3% -0.0 0.30 ± 4% perf-profile.self.cycles-pp.memcg_list_lru_alloc
0.17 ± 13% -0.0 0.12 ± 4% perf-profile.self.cycles-pp.errseq_sample
0.54 ± 3% -0.0 0.50 ± 5% perf-profile.self.cycles-pp.init_file
0.16 ± 10% -0.0 0.12 ± 8% perf-profile.self.cycles-pp.__check_heap_object
0.25 ± 4% -0.0 0.21 ± 5% perf-profile.self.cycles-pp.__virt_addr_valid
0.36 -0.0 0.33 ± 4% perf-profile.self.cycles-pp.apparmor_file_free_security
0.19 ± 6% -0.0 0.15 ± 4% perf-profile.self.cycles-pp.get_obj_cgroup_from_current
0.13 ± 6% -0.0 0.10 ± 8% perf-profile.self.cycles-pp.down_write
0.21 ± 4% -0.0 0.18 ± 7% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.15 ± 7% -0.0 0.13 ± 2% perf-profile.self.cycles-pp.up_write
0.10 ± 11% -0.0 0.08 ± 6% perf-profile.self.cycles-pp.set_cached_acl
0.12 ± 8% -0.0 0.09 ± 7% perf-profile.self.cycles-pp.d_alloc_parallel
0.12 ± 6% -0.0 0.10 ± 4% perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.10 ± 7% -0.0 0.08 ± 8% perf-profile.self.cycles-pp.do_filp_open
0.12 ± 5% -0.0 0.10 ± 4% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.12 ± 5% -0.0 0.10 ± 3% perf-profile.self.cycles-pp.inode_sb_list_add
0.10 ± 5% -0.0 0.08 ± 7% perf-profile.self.cycles-pp.filemap_get_entry
0.08 ± 5% -0.0 0.07 ± 11% perf-profile.self.cycles-pp.__d_lookup_unhash
0.08 ± 5% -0.0 0.06 ± 7% perf-profile.self.cycles-pp.___d_drop
0.09 ± 7% -0.0 0.07 ± 5% perf-profile.self.cycles-pp.exit_to_user_mode_loop
0.07 ± 11% -0.0 0.05 ± 7% perf-profile.self.cycles-pp.mntput_no_expire
0.16 ± 4% +0.0 0.18 ± 3% perf-profile.self.cycles-pp.__open64
0.04 ± 45% +0.0 0.08 ± 10% perf-profile.self.cycles-pp.arch_scale_freq_tick
0.04 ± 44% +0.0 0.07 ± 6% perf-profile.self.cycles-pp.__d_instantiate
0.13 ± 5% +0.0 0.18 ± 7% perf-profile.self.cycles-pp.__filename_parentat
0.00 +0.1 0.05 ± 8% perf-profile.self.cycles-pp.xas_clear_mark
0.00 +0.1 0.06 ± 9% perf-profile.self.cycles-pp.__hrtimer_run_queues
0.14 ± 7% +0.1 0.20 ± 6% perf-profile.self.cycles-pp.lockref_get
0.00 +0.1 0.06 ± 11% perf-profile.self.cycles-pp.irqtime_account_irq
0.01 ±223% +0.1 0.07 ± 13% perf-profile.self.cycles-pp.native_sched_clock
0.09 ± 9% +0.1 0.16 ± 10% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.01 ±223% +0.1 0.08 ± 7% perf-profile.self.cycles-pp.xas_load
0.00 +0.1 0.08 ± 10% perf-profile.self.cycles-pp.___slab_alloc
0.00 +0.1 0.11 ± 5% perf-profile.self.cycles-pp.xas_create
0.05 ± 8% +0.1 0.17 ± 6% perf-profile.self.cycles-pp.rcu_nocb_try_bypass
0.15 ± 10% +0.1 0.27 ± 3% perf-profile.self.cycles-pp.slab_pre_alloc_hook
0.00 +0.2 0.15 ± 7% perf-profile.self.cycles-pp.rcu_do_batch
0.00 +0.2 0.15 ± 3% perf-profile.self.cycles-pp.i_callback
0.14 ± 7% +0.2 0.39 ± 3% perf-profile.self.cycles-pp.rcu_segcblist_enqueue
0.00 +0.2 0.25 ± 5% perf-profile.self.cycles-pp.xas_alloc
0.04 ± 45% +0.3 0.32 ± 6% perf-profile.self.cycles-pp.shuffle_freelist
0.00 +0.3 0.29 ± 3% perf-profile.self.cycles-pp.xas_expand
0.04 ± 71% +0.3 0.33 ± 6% perf-profile.self.cycles-pp.intel_idle
0.00 +0.3 0.31 ± 4% perf-profile.self.cycles-pp.xas_descend
0.00 +0.3 0.34 ± 6% perf-profile.self.cycles-pp.xas_store
0.65 ± 4% +0.5 1.12 ± 2% perf-profile.self.cycles-pp.rcu_cblist_dequeue
0.31 ± 3% +0.5 0.80 perf-profile.self.cycles-pp.__call_rcu_common
0.15 ± 3% +0.6 0.75 ± 3% perf-profile.self.cycles-pp.kmem_cache_alloc_lru
0.00 +0.7 0.68 perf-profile.self.cycles-pp.radix_tree_node_rcu_free
0.50 ± 3% +0.9 1.36 ± 2% perf-profile.self.cycles-pp.kmem_cache_free
0.00 +2.9 2.87 perf-profile.self.cycles-pp.radix_tree_node_ctor
0.89 ± 4% +4.2 5.11 ± 2% perf-profile.self.cycles-pp.__slab_free
***************************************************************************************************
lkp-csl-d02: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-8.3/thread/16/debian-11.1-x86_64-20220510.cgz/lkp-csl-d02/unlink2/will-it-scale
commit:
c2c3172c26 ("shmem: Refactor shmem_symlink()")
a1a690e009 ("shmem: stable directory offsets")
c2c3172c269f808d a1a690e009744e4526526b2f838
---------------- ---------------------------
%stddev %change %stddev
\ | \
152086 -26.3% 112046 ± 20% meminfo.SUnreclaim
5272 ± 10% -43.9% 2957 ± 70% perf-c2c.HITM.local
38031 -26.3% 28019 ± 20% proc-vmstat.nr_slab_unreclaimable
8013 +85.9% 14896 ± 58% vmstat.system.cs
16670 ± 3% -38.5% 10253 ± 70% turbostat.C1
0.16 ± 7% -42.9% 0.09 ± 71% turbostat.CPU%c6
0.11 ± 7% -42.4% 0.06 ± 71% turbostat.Pkg%pc2
58.94 ± 8% +84.3% 108.61 ± 38% sched_debug.cfs_rq:/.load_avg.avg
17.37 ± 29% +154.4% 44.17 ± 66% sched_debug.cfs_rq:/.removed.load_avg.avg
88662 ± 16% -81.3% 16537 ±119% sched_debug.cfs_rq:/.spread0.max
0.00 ± 8% -14.7% 0.00 ± 7% sched_debug.cpu.next_balance.stddev
1330086 ± 4% -40.0% 798527 ± 70% will-it-scale.16.threads
54.99 -36.2% 35.11 ± 70% will-it-scale.16.threads_idle
83130 ± 4% -40.0% 49907 ± 70% will-it-scale.per_thread_ops
1330086 ± 4% -40.0% 798527 ± 70% will-it-scale.workload
0.00 -50.0% 0.00 ± 70% perf-sched.sch_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.01 ± 18% +97.2% 0.02 ± 21% perf-sched.total_sch_delay.average.ms
258.53 ± 3% -39.4% 156.56 ± 70% perf-sched.wait_and_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
3.47 ± 3% -33.3% 2.31 ± 30% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
275.59 ± 6% -66.4% 92.71 ± 69% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork
258.53 ± 3% -39.4% 156.56 ± 70% perf-sched.wait_time.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
3.47 ± 3% -33.3% 2.31 ± 30% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
274.83 ± 6% -66.5% 92.08 ± 69% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork
23.44 ± 9% -41.5% 13.71 ± 70% perf-stat.i.MPKI
2.57 ± 5% -43.2% 1.46 ± 70% perf-stat.i.cpi
1466 ± 4% -81.4% 272.44 ± 70% perf-stat.i.cycles-between-cache-misses
431526 -39.2% 262449 ± 70% perf-stat.i.iTLB-loads
505.11 ± 4% -56.3% 220.66 ± 70% perf-stat.i.metric.K/sec
23.41 ± 9% -41.5% 13.70 ± 70% perf-stat.overall.MPKI
2.57 ± 5% -43.2% 1.46 ± 70% perf-stat.overall.cpi
1463 ± 4% -81.5% 271.05 ± 70% perf-stat.overall.cycles-between-cache-misses
430084 -39.2% 261537 ± 70% perf-stat.ps.iTLB-loads
41.47 -14.1 27.35 ± 70% perf-profile.calltrace.cycles-pp.__open64
40.98 -14.0 26.94 ± 70% perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.__open64
41.10 -14.0 27.07 ± 70% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__open64
41.04 -14.0 27.02 ± 70% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__open64
40.93 -14.0 26.91 ± 70% perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.__open64
31.17 ± 2% -11.7 19.49 ± 70% perf-profile.calltrace.cycles-pp.unlink
30.89 ± 2% -11.6 19.32 ± 70% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.unlink
30.81 ± 2% -11.6 19.25 ± 70% perf-profile.calltrace.cycles-pp.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink
30.86 ± 2% -11.6 19.30 ± 70% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink
30.28 ± 2% -11.4 18.93 ± 70% perf-profile.calltrace.cycles-pp.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink
3.95 ± 21% -2.5 1.45 ± 70% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
3.23 ± 21% -2.1 1.18 ± 70% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
3.21 ± 10% -1.5 1.67 ± 70% perf-profile.calltrace.cycles-pp.shmem_evict_inode.evict.do_unlinkat.__x64_sys_unlink.do_syscall_64
2.91 ± 13% -1.5 1.40 ± 70% perf-profile.calltrace.cycles-pp.alloc_inode.new_inode.shmem_get_inode.shmem_mknod.lookup_open
1.86 ± 24% -1.2 0.66 ± 70% perf-profile.calltrace.cycles-pp.destroy_inode.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.28 ± 13% -1.2 1.08 ± 70% perf-profile.calltrace.cycles-pp.__filename_parentat.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.17 ± 14% -1.1 1.02 ± 70% perf-profile.calltrace.cycles-pp.path_parentat.__filename_parentat.do_unlinkat.__x64_sys_unlink.do_syscall_64
1.90 ± 18% -1.1 0.77 ± 70% perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
1.89 ± 16% -1.1 0.77 ± 70% perf-profile.calltrace.cycles-pp.link_path_walk.path_parentat.__filename_parentat.do_unlinkat.__x64_sys_unlink
2.00 ± 12% -1.1 0.91 ± 70% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
1.99 ± 12% -1.1 0.91 ± 70% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
1.90 ± 13% -1.0 0.85 ± 70% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
1.60 ± 19% -1.0 0.61 ± 70% perf-profile.calltrace.cycles-pp.__destroy_inode.destroy_inode.do_unlinkat.__x64_sys_unlink.do_syscall_64
1.61 ± 16% -0.9 0.67 ± 70% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
1.40 ± 19% -0.9 0.50 ± 71% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_parentat.__filename_parentat.do_unlinkat
1.36 ± 20% -0.9 0.48 ± 71% perf-profile.calltrace.cycles-pp.generic_permission.inode_permission.link_path_walk.path_parentat.__filename_parentat
2.05 ± 7% -0.9 1.19 ± 70% perf-profile.calltrace.cycles-pp.shmem_reserve_inode.shmem_get_inode.shmem_mknod.lookup_open.open_last_lookups
1.34 ± 23% -0.9 0.48 ± 70% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_openat.do_filp_open.do_sys_openat2
1.29 ± 24% -0.8 0.46 ± 70% perf-profile.calltrace.cycles-pp.generic_permission.inode_permission.link_path_walk.path_openat.do_filp_open
1.73 -0.7 1.06 ± 70% perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
1.45 ± 10% -0.6 0.88 ± 70% perf-profile.calltrace.cycles-pp._raw_spin_lock.shmem_evict_inode.evict.do_unlinkat.__x64_sys_unlink
1.30 ± 8% -0.6 0.75 ± 71% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.shmem_reserve_inode.shmem_get_inode.shmem_mknod
1.30 ± 4% -0.5 0.76 ± 70% perf-profile.calltrace.cycles-pp.d_alloc_parallel.lookup_open.open_last_lookups.path_openat.do_filp_open
1.19 ± 5% -0.5 0.70 ± 70% perf-profile.calltrace.cycles-pp.d_alloc.d_alloc_parallel.lookup_open.open_last_lookups.path_openat
1.10 ± 2% -0.4 0.65 ± 70% perf-profile.calltrace.cycles-pp.init_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
0.80 ± 18% -0.4 0.35 ± 70% perf-profile.calltrace.cycles-pp.iput.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.16 ± 2% -0.4 0.75 ± 70% perf-profile.calltrace.cycles-pp.inode_wait_for_writeback.evict.do_unlinkat.__x64_sys_unlink.do_syscall_64
1.01 ± 8% -0.4 0.59 ± 70% perf-profile.calltrace.cycles-pp.__d_alloc.d_alloc.d_alloc_parallel.lookup_open.open_last_lookups
1.13 ± 2% -0.4 0.73 ± 70% perf-profile.calltrace.cycles-pp._raw_spin_lock.inode_wait_for_writeback.evict.do_unlinkat.__x64_sys_unlink
0.91 -0.4 0.51 ± 70% perf-profile.calltrace.cycles-pp.try_to_unlazy.open_last_lookups.path_openat.do_filp_open.do_sys_openat2
0.88 ± 2% -0.4 0.50 ± 70% perf-profile.calltrace.cycles-pp.__legitimize_path.try_to_unlazy.open_last_lookups.path_openat.do_filp_open
0.62 -0.3 0.35 ± 70% perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open
0.61 -0.2 0.38 ± 70% perf-profile.calltrace.cycles-pp._raw_spin_lock.new_inode.shmem_get_inode.shmem_mknod.lookup_open
0.59 ± 2% -0.2 0.37 ± 70% perf-profile.calltrace.cycles-pp.__list_add_valid.inode_sb_list_add.new_inode.shmem_get_inode.shmem_mknod
77.22 -15.2 62.07 ± 27% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
77.08 -15.1 61.98 ± 27% perf-profile.children.cycles-pp.do_syscall_64
41.54 -14.2 27.39 ± 70% perf-profile.children.cycles-pp.__open64
40.98 -12.4 28.53 ± 58% perf-profile.children.cycles-pp.__x64_sys_openat
40.94 -12.4 28.51 ± 58% perf-profile.children.cycles-pp.do_sys_openat2
31.25 ± 2% -11.7 19.52 ± 70% perf-profile.children.cycles-pp.unlink
30.81 ± 2% -11.6 19.25 ± 70% perf-profile.children.cycles-pp.__x64_sys_unlink
30.30 ± 2% -11.4 18.94 ± 70% perf-profile.children.cycles-pp.do_unlinkat
4.34 ± 26% -2.9 1.42 ± 70% perf-profile.children.cycles-pp.inode_permission
3.96 ± 21% -2.5 1.46 ± 70% perf-profile.children.cycles-pp.do_open
3.80 ± 17% -2.3 1.55 ± 70% perf-profile.children.cycles-pp.link_path_walk
3.44 ± 22% -2.2 1.21 ± 70% perf-profile.children.cycles-pp.generic_permission
3.24 ± 21% -2.1 1.18 ± 70% perf-profile.children.cycles-pp.do_dentry_open
3.21 ± 10% -1.5 1.67 ± 70% perf-profile.children.cycles-pp.shmem_evict_inode
2.91 ± 13% -1.5 1.40 ± 70% perf-profile.children.cycles-pp.alloc_inode
1.95 ± 34% -1.5 0.49 ± 70% perf-profile.children.cycles-pp.__mnt_want_write
1.91 ± 31% -1.4 0.56 ± 70% perf-profile.children.cycles-pp.mnt_want_write
1.87 ± 23% -1.2 0.66 ± 70% perf-profile.children.cycles-pp.destroy_inode
2.28 ± 13% -1.2 1.09 ± 70% perf-profile.children.cycles-pp.__filename_parentat
2.17 ± 14% -1.2 1.02 ± 70% perf-profile.children.cycles-pp.path_parentat
1.60 ± 20% -1.0 0.62 ± 70% perf-profile.children.cycles-pp.__destroy_inode
2.05 ± 7% -0.9 1.19 ± 71% perf-profile.children.cycles-pp.shmem_reserve_inode
1.07 ± 29% -0.8 0.31 ± 70% perf-profile.children.cycles-pp.inode_init_always
1.74 -0.7 1.06 ± 70% perf-profile.children.cycles-pp.alloc_empty_file
1.18 ± 8% -0.6 0.57 ± 70% perf-profile.children.cycles-pp.inode_maybe_inc_iversion
0.87 ± 33% -0.6 0.26 ± 70% perf-profile.children.cycles-pp.may_delete
0.84 ± 25% -0.6 0.29 ± 70% perf-profile.children.cycles-pp.inode_init_owner
1.30 ± 4% -0.5 0.76 ± 70% perf-profile.children.cycles-pp.d_alloc_parallel
0.76 ± 25% -0.5 0.26 ± 70% perf-profile.children.cycles-pp.security_path_unlink
0.92 ± 16% -0.5 0.42 ± 70% perf-profile.children.cycles-pp.iput
0.71 ± 30% -0.5 0.21 ± 70% perf-profile.children.cycles-pp.__fsnotify_parent
0.75 ± 24% -0.5 0.25 ± 70% perf-profile.children.cycles-pp.apparmor_path_unlink
1.20 ± 5% -0.5 0.70 ± 70% perf-profile.children.cycles-pp.d_alloc
0.85 ± 2% -0.5 0.35 ± 71% perf-profile.children.cycles-pp.file_free_rcu
0.81 ± 28% -0.5 0.33 ± 70% perf-profile.children.cycles-pp.fsnotify
1.11 ± 2% -0.5 0.66 ± 70% perf-profile.children.cycles-pp.init_file
1.05 -0.4 0.61 ± 70% perf-profile.children.cycles-pp.try_to_unlazy
0.68 ± 23% -0.4 0.25 ± 70% perf-profile.children.cycles-pp.may_open
1.00 -0.4 0.57 ± 70% perf-profile.children.cycles-pp.__legitimize_path
1.17 ± 2% -0.4 0.75 ± 70% perf-profile.children.cycles-pp.inode_wait_for_writeback
1.01 ± 8% -0.4 0.59 ± 70% perf-profile.children.cycles-pp.__d_alloc
0.55 ± 32% -0.4 0.15 ± 71% perf-profile.children.cycles-pp.fsnotify_perm
0.81 -0.4 0.42 ± 72% perf-profile.children.cycles-pp.lockref_get_not_dead
0.65 ± 7% -0.3 0.31 ± 70% perf-profile.children.cycles-pp.simple_lookup
0.84 ± 3% -0.3 0.54 ± 70% perf-profile.children.cycles-pp.memcg_list_lru_alloc
0.62 -0.3 0.35 ± 70% perf-profile.children.cycles-pp.security_file_alloc
0.38 ± 23% -0.3 0.11 ± 70% perf-profile.children.cycles-pp.drop_nlink
0.68 ± 2% -0.3 0.42 ± 70% perf-profile.children.cycles-pp.strncpy_from_user
0.57 ± 4% -0.3 0.31 ± 70% perf-profile.children.cycles-pp._raw_spin_lock_irq
0.51 ± 4% -0.2 0.28 ± 70% perf-profile.children.cycles-pp.clear_inode
0.54 ± 5% -0.2 0.32 ± 71% perf-profile.children.cycles-pp.security_file_open
0.51 ± 8% -0.2 0.29 ± 70% perf-profile.children.cycles-pp.filp_close
0.51 -0.2 0.29 ± 70% perf-profile.children.cycles-pp.apparmor_file_alloc_security
0.53 ± 5% -0.2 0.31 ± 71% perf-profile.children.cycles-pp.apparmor_file_open
0.37 ± 23% -0.2 0.15 ± 70% perf-profile.children.cycles-pp.mnt_drop_write
0.41 ± 16% -0.2 0.19 ± 70% perf-profile.children.cycles-pp.fsnotify_destroy_marks
0.39 ± 16% -0.2 0.18 ± 70% perf-profile.children.cycles-pp.fsnotify_grab_connector
0.28 ± 22% -0.2 0.10 ± 71% perf-profile.children.cycles-pp.simple_acl_create
0.40 ± 6% -0.2 0.23 ± 71% perf-profile.children.cycles-pp.__entry_text_start
0.26 ± 29% -0.2 0.10 ± 70% perf-profile.children.cycles-pp.__srcu_read_lock
0.41 -0.2 0.25 ± 70% perf-profile.children.cycles-pp.__check_object_size
0.36 ± 5% -0.2 0.21 ± 70% perf-profile.children.cycles-pp.__d_add
0.34 ± 11% -0.1 0.20 ± 70% perf-profile.children.cycles-pp.locks_remove_posix
0.33 -0.1 0.18 ± 71% perf-profile.children.cycles-pp.security_file_free
0.32 ± 2% -0.1 0.18 ± 71% perf-profile.children.cycles-pp.apparmor_file_free_security
0.36 -0.1 0.22 ± 70% perf-profile.children.cycles-pp.lockref_put_or_lock
0.22 ± 23% -0.1 0.08 ± 71% perf-profile.children.cycles-pp.errseq_sample
0.33 ± 8% -0.1 0.20 ± 70% perf-profile.children.cycles-pp.security_path_mknod
0.31 ± 8% -0.1 0.19 ± 70% perf-profile.children.cycles-pp.apparmor_path_mknod
0.18 ± 15% -0.1 0.09 ± 70% perf-profile.children.cycles-pp.file_ra_state_init
0.17 ± 15% -0.1 0.07 ± 70% perf-profile.children.cycles-pp.inode_to_bdi
0.20 ± 4% -0.1 0.11 ± 70% perf-profile.children.cycles-pp.step_into
0.19 ± 2% -0.1 0.11 ± 70% perf-profile.children.cycles-pp.check_heap_object
0.17 ± 5% -0.1 0.09 ± 70% perf-profile.children.cycles-pp.down_write
0.14 ± 5% -0.1 0.08 ± 71% perf-profile.children.cycles-pp.fput
0.12 ± 17% -0.1 0.06 ± 71% perf-profile.children.cycles-pp._find_next_zero_bit
0.11 ± 11% -0.1 0.05 ± 72% perf-profile.children.cycles-pp.set_cached_acl
0.10 ± 12% -0.0 0.05 ± 72% perf-profile.children.cycles-pp.shmem_get_partial_folio
0.12 ± 4% -0.0 0.07 ± 70% perf-profile.children.cycles-pp.refill_obj_stock
0.11 ± 4% -0.0 0.06 ± 70% perf-profile.children.cycles-pp.rcu_all_qs
0.09 ± 5% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.__d_lookup_unhash
0.09 ± 10% -0.0 0.05 ± 72% perf-profile.children.cycles-pp.task_work_add
0.09 -0.0 0.05 ± 71% perf-profile.children.cycles-pp.ihold
0.07 ± 7% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.xas_find
0.26 ± 4% +1.5 1.81 ±115% perf-profile.children.cycles-pp.__list_del_entry_valid
0.05 ± 8% +1.6 1.66 ±132% perf-profile.children.cycles-pp.scheduler_tick
0.08 ± 10% +1.6 1.70 ±127% perf-profile.children.cycles-pp.tick_sched_timer
0.06 ± 7% +1.6 1.69 ±128% perf-profile.children.cycles-pp.update_process_times
0.07 ± 7% +1.6 1.69 ±128% perf-profile.children.cycles-pp.tick_sched_handle
0.14 ± 3% +1.6 1.77 ±119% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.00 +1.6 1.63 ±135% perf-profile.children.cycles-pp.task_tick_fair
0.13 ± 7% +1.6 1.77 ±119% perf-profile.children.cycles-pp.hrtimer_interrupt
0.06 +1.6 1.70 ±127% perf-profile.children.cycles-pp.rcu_nocb_try_bypass
0.11 ± 4% +1.6 1.75 ±121% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.49 ± 5% +2.0 2.50 ± 63% perf-profile.children.cycles-pp.__call_rcu_common
3.14 ± 4% +3.7 6.86 ± 21% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
3.15 ± 5% +3.7 6.87 ± 21% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
0.54 ± 4% +3.9 4.41 ± 6% perf-profile.children.cycles-pp.__slab_free
3.30 ± 23% -2.2 1.11 ± 70% perf-profile.self.cycles-pp.generic_permission
5.20 -2.0 3.22 ± 70% perf-profile.self.cycles-pp._raw_spin_lock
1.91 ± 34% -1.4 0.46 ± 70% perf-profile.self.cycles-pp.__mnt_want_write
1.30 ± 37% -0.9 0.40 ± 70% perf-profile.self.cycles-pp.current_time
1.26 ± 20% -0.8 0.44 ± 70% perf-profile.self.cycles-pp.__destroy_inode
0.97 ± 31% -0.7 0.25 ± 70% perf-profile.self.cycles-pp.inode_init_always
0.81 ± 44% -0.7 0.15 ± 70% perf-profile.self.cycles-pp.inode_permission
1.15 ± 8% -0.6 0.54 ± 70% perf-profile.self.cycles-pp.inode_maybe_inc_iversion
0.83 ± 29% -0.6 0.24 ± 70% perf-profile.self.cycles-pp.vfs_unlink
0.83 ± 30% -0.6 0.24 ± 71% perf-profile.self.cycles-pp.lookup_open
0.81 ± 26% -0.5 0.27 ± 70% perf-profile.self.cycles-pp.inode_init_owner
0.81 ± 23% -0.5 0.27 ± 70% perf-profile.self.cycles-pp.__fput
0.75 ± 21% -0.5 0.24 ± 71% perf-profile.self.cycles-pp.do_dentry_open
0.73 ± 25% -0.5 0.23 ± 70% perf-profile.self.cycles-pp.apparmor_path_unlink
0.70 ± 31% -0.5 0.20 ± 70% perf-profile.self.cycles-pp.__fsnotify_parent
0.84 -0.5 0.35 ± 71% perf-profile.self.cycles-pp.file_free_rcu
0.79 ± 29% -0.5 0.31 ± 70% perf-profile.self.cycles-pp.fsnotify
0.62 ± 31% -0.5 0.16 ± 71% perf-profile.self.cycles-pp.open_last_lookups
0.54 ± 32% -0.4 0.14 ± 71% perf-profile.self.cycles-pp.fsnotify_perm
0.80 -0.4 0.40 ± 71% perf-profile.self.cycles-pp.lockref_get_not_dead
0.52 ± 25% -0.3 0.18 ± 71% perf-profile.self.cycles-pp.shmem_evict_inode
0.44 ± 30% -0.3 0.11 ± 70% perf-profile.self.cycles-pp.iput
0.56 ± 13% -0.3 0.26 ± 70% perf-profile.self.cycles-pp.link_path_walk
0.57 ± 4% -0.3 0.31 ± 70% perf-profile.self.cycles-pp._raw_spin_lock_irq
0.37 ± 24% -0.3 0.11 ± 70% perf-profile.self.cycles-pp.drop_nlink
0.39 ± 27% -0.3 0.13 ± 71% perf-profile.self.cycles-pp.may_delete
0.31 ± 43% -0.2 0.07 ± 70% perf-profile.self.cycles-pp.dentry_unlink_inode
0.38 ± 18% -0.2 0.15 ± 70% perf-profile.self.cycles-pp.mnt_want_write
0.52 ± 7% -0.2 0.30 ± 71% perf-profile.self.cycles-pp.apparmor_file_open
0.36 ± 22% -0.2 0.14 ± 70% perf-profile.self.cycles-pp.mnt_drop_write
0.34 ± 21% -0.2 0.13 ± 71% perf-profile.self.cycles-pp.__d_alloc
0.49 -0.2 0.27 ± 70% perf-profile.self.cycles-pp.apparmor_file_alloc_security
0.29 ± 31% -0.2 0.09 ± 71% perf-profile.self.cycles-pp.shmem_reserve_inode
0.48 ± 5% -0.2 0.29 ± 70% perf-profile.self.cycles-pp.init_file
0.26 ± 26% -0.2 0.08 ± 70% perf-profile.self.cycles-pp.simple_lookup
0.41 ± 7% -0.2 0.24 ± 70% perf-profile.self.cycles-pp.memcg_list_lru_alloc
0.26 ± 29% -0.2 0.09 ± 70% perf-profile.self.cycles-pp.__srcu_read_lock
0.34 ± 10% -0.2 0.18 ± 71% perf-profile.self.cycles-pp.locks_remove_posix
0.31 -0.1 0.17 ± 71% perf-profile.self.cycles-pp.apparmor_file_free_security
0.21 ± 24% -0.1 0.07 ± 70% perf-profile.self.cycles-pp.errseq_sample
0.35 ± 3% -0.1 0.22 ± 70% perf-profile.self.cycles-pp.mod_objcg_state
0.30 ± 4% -0.1 0.17 ± 70% perf-profile.self.cycles-pp.lockref_put_or_lock
0.30 ± 7% -0.1 0.17 ± 70% perf-profile.self.cycles-pp.apparmor_path_mknod
0.27 -0.1 0.15 ± 70% perf-profile.self.cycles-pp.strncpy_from_user
0.16 ± 18% -0.1 0.07 ± 70% perf-profile.self.cycles-pp.inode_to_bdi
0.19 ± 8% -0.1 0.10 ± 70% perf-profile.self.cycles-pp.__entry_text_start
0.14 ± 3% -0.1 0.08 ± 70% perf-profile.self.cycles-pp.step_into
0.13 ± 6% -0.1 0.07 ± 70% perf-profile.self.cycles-pp.down_write
0.11 ± 19% -0.1 0.05 ± 72% perf-profile.self.cycles-pp._find_next_zero_bit
0.10 ± 8% -0.0 0.05 ± 71% perf-profile.self.cycles-pp.set_cached_acl
0.11 ± 4% -0.0 0.07 ± 70% perf-profile.self.cycles-pp.refill_obj_stock
0.10 ± 4% -0.0 0.06 ± 70% perf-profile.self.cycles-pp.__filename_parentat
0.09 ± 5% -0.0 0.05 ± 72% perf-profile.self.cycles-pp.rcu_all_qs
0.09 ± 5% -0.0 0.05 ± 72% perf-profile.self.cycles-pp.task_work_add
0.09 ± 5% -0.0 0.05 ± 70% perf-profile.self.cycles-pp.ihold
0.08 ± 5% -0.0 0.04 ± 71% perf-profile.self.cycles-pp.__d_lookup_unhash
0.06 ± 7% -0.0 0.03 ± 70% perf-profile.self.cycles-pp.exit_to_user_mode_loop
0.06 -0.0 0.03 ± 70% perf-profile.self.cycles-pp.getname_flags
0.26 ± 3% +1.5 1.80 ±116% perf-profile.self.cycles-pp.__list_del_entry_valid
0.02 ±141% +1.7 1.68 ±129% perf-profile.self.cycles-pp.rcu_nocb_try_bypass
0.53 ± 5% +3.8 4.36 ± 7% perf-profile.self.cycles-pp.__slab_free
***************************************************************************************************
lkp-skl-d08: 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
filesystem/gcc-12/performance/1SSD/ext4/x86_64-rhel-8.3/10%/debian-11.1-x86_64-20220510.cgz/lkp-skl-d08/handle/stress-ng/60s
commit:
c2c3172c26 ("shmem: Refactor shmem_symlink()")
a1a690e009 ("shmem: stable directory offsets")
c2c3172c269f808d a1a690e009744e4526526b2f838
---------------- ---------------------------
%stddev %change %stddev
\ | \
5.92 -1.2% 5.85 iostat.cpu.system
88.56 ± 21% -29.4% 62.51 ± 39% sched_debug.cfs_rq:/.util_est_enqueued.avg
1294 ± 10% -21.2% 1020 ± 13% sched_debug.cpu.curr->pid.avg
11210546 +3.0% 11542342 stress-ng.handle.ops
186841 +3.0% 192371 stress-ng.handle.ops_per_sec
100.40 ± 53% -51.2% 49.00 ± 74% proc-vmstat.nr_dirtied
488851 ± 5% -8.4% 447861 proc-vmstat.numa_hit
480285 ± 5% -6.8% 447764 proc-vmstat.numa_local
750318 ± 6% -8.4% 687348 proc-vmstat.pgalloc_normal
710717 ± 7% -9.0% 646894 proc-vmstat.pgfree
1.43e+09 -1.7% 1.406e+09 perf-stat.i.branch-instructions
1.25 -0.0 1.20 perf-stat.i.branch-miss-rate%
19188631 -5.1% 18207135 perf-stat.i.branch-misses
0.15 +0.0 0.15 perf-stat.i.dTLB-load-miss-rate%
2781970 +2.6% 2854604 perf-stat.i.dTLB-load-misses
1.904e+09 -1.5% 1.875e+09 perf-stat.i.dTLB-loads
1.139e+09 -1.7% 1.12e+09 perf-stat.i.dTLB-stores
67.67 ± 10% +7.1 74.72 perf-stat.i.iTLB-load-miss-rate%
1568674 ± 46% -32.7% 1055235 ± 14% perf-stat.i.iTLB-loads
7.352e+09 -1.4% 7.247e+09 perf-stat.i.instructions
124.64 -1.9% 122.30 perf-stat.i.metric.M/sec
41311 ± 5% -11.0% 36758 ± 2% perf-stat.i.node-stores
1.34 -0.0 1.29 perf-stat.overall.branch-miss-rate%
0.15 +0.0 0.15 perf-stat.overall.dTLB-load-miss-rate%
68.34 ± 10% +7.3 75.68 ± 2% perf-stat.overall.iTLB-load-miss-rate%
1.407e+09 -1.7% 1.383e+09 perf-stat.ps.branch-instructions
18876614 -5.1% 17906237 perf-stat.ps.branch-misses
2737798 +2.6% 2809345 perf-stat.ps.dTLB-load-misses
1.873e+09 -1.5% 1.845e+09 perf-stat.ps.dTLB-loads
1.121e+09 -1.7% 1.102e+09 perf-stat.ps.dTLB-stores
1543675 ± 46% -32.8% 1037667 ± 14% perf-stat.ps.iTLB-loads
7.235e+09 -1.4% 7.13e+09 perf-stat.ps.instructions
40647 ± 5% -11.1% 36139 ± 3% perf-stat.ps.node-stores
4.557e+11 -1.2% 4.502e+11 perf-stat.total.instructions
0.01 -20.0% 0.00 perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork
0.08 ± 10% -30.6% 0.06 ± 9% perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.19 ± 5% -26.8% 0.14 ± 3% perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.08 ± 20% -30.2% 0.06 ± 15% perf-sched.wait_time.avg.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare
0.08 ± 10% -31.9% 0.06 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.do_sys_name_to_handle.__x64_sys_name_to_handle_at
0.08 ± 12% -31.4% 0.06 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.handle_to_path.do_handle_open
0.08 ± 9% -29.4% 0.06 ± 14% perf-sched.wait_time.avg.ms.__cond_resched.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file
0.08 ± 9% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.dentry_kill.dput.dcache_dir_close.__fput
0.08 ± 10% -30.5% 0.06 ± 7% perf-sched.wait_time.avg.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop
0.08 ± 11% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.dput.dcache_dir_close.__fput.task_work_run
0.08 ± 10% -30.3% 0.06 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.dput.path_put.__x64_sys_name_to_handle_at.do_syscall_64
0.08 ± 9% -34.9% 0.05 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.dput.path_put.do_handle_open.do_syscall_64
0.08 ± 10% -29.6% 0.05 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_openat.do_file_open_root
0.08 ± 9% -30.6% 0.06 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_openat.do_filp_open
0.08 ± 10% -29.1% 0.06 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.ilookup5.shmem_fh_to_dentry.exportfs_decode_fh_raw.exportfs_decode_fh
0.08 ± 18% -30.9% 0.05 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_file_open_root
0.07 ± 7% -23.8% 0.06 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open
0.08 ± 10% -32.2% 0.05 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0
0.08 ± 11% -33.4% 0.05 ± 12% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_kernel.do_file_open_root.file_open_root
0.08 ± 11% -30.8% 0.06 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file
0.08 ± 10% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
0.08 ± 11% -34.6% 0.05 ± 11% perf-sched.wait_time.avg.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.08 ± 10% -30.6% 0.06 ± 9% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.08 ± 11% -32.3% 0.05 ± 9% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.13 ± 29% -43.2% 0.07 ± 22% perf-sched.wait_time.max.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare
0.18 ± 11% -22.3% 0.14 ± 12% perf-sched.wait_time.max.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.do_sys_name_to_handle.__x64_sys_name_to_handle_at
0.17 ± 9% -28.2% 0.12 ± 6% perf-sched.wait_time.max.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.handle_to_path.do_handle_open
0.13 ± 14% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.dentry_kill.dput.dcache_dir_close.__fput
0.15 ± 9% -26.8% 0.11 ± 16% perf-sched.wait_time.max.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop
0.11 ± 32% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.dput.dcache_dir_close.__fput.task_work_run
0.17 ± 2% -26.6% 0.12 ± 7% perf-sched.wait_time.max.ms.__cond_resched.dput.path_put.__x64_sys_name_to_handle_at.do_syscall_64
0.16 ± 10% -42.7% 0.09 ± 18% perf-sched.wait_time.max.ms.__cond_resched.dput.path_put.do_handle_open.do_syscall_64
0.16 ± 10% -27.0% 0.12 ± 6% perf-sched.wait_time.max.ms.__cond_resched.dput.terminate_walk.path_openat.do_file_open_root
0.16 ± 6% -24.1% 0.12 ± 9% perf-sched.wait_time.max.ms.__cond_resched.ilookup5.shmem_fh_to_dentry.exportfs_decode_fh_raw.exportfs_decode_fh
0.13 ± 27% -36.6% 0.08 ± 24% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_file_open_root
0.13 ± 16% -27.5% 0.10 ± 20% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open
0.18 ± 9% -23.2% 0.14 ± 13% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0
0.15 ± 11% -35.8% 0.10 ± 15% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.getname_kernel.do_file_open_root.file_open_root
0.16 ± 7% -35.5% 0.10 ± 24% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file
0.17 ± 10% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
0.16 ± 8% -36.2% 0.10 ± 21% perf-sched.wait_time.max.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.19 ± 5% -26.8% 0.14 ± 3% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.18 ± 4% -31.4% 0.12 ± 8% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
1.42 ± 6% -0.8 0.59 ± 3% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
1.89 ± 4% -0.8 1.07 ± 5% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
4.24 ± 3% -0.8 3.43 ± 2% perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
4.19 ± 3% -0.8 3.38 ± 2% perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
3.46 ± 3% -0.8 2.68 ± 3% perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.36 ± 3% -0.8 2.59 ± 3% perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64
6.64 ± 3% -0.8 5.88 ± 2% perf-profile.calltrace.cycles-pp.open64
5.39 ± 3% -0.8 4.63 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.open64
4.95 ± 3% -0.8 4.19 ± 2% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
5.48 ± 4% -0.7 4.80 ± 3% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
6.32 ± 3% -0.6 5.68 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
8.83 ± 3% -0.5 8.29 perf-profile.calltrace.cycles-pp.__close
4.33 ± 4% -0.5 3.82 ± 5% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
2.36 ± 5% -0.5 1.86 ± 8% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
2.93 ± 5% -0.5 2.45 ± 6% perf-profile.calltrace.cycles-pp.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.76 ± 5% -0.5 2.28 ± 7% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
2.98 ± 5% -0.5 2.50 ± 6% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
1.17 ± 13% -0.3 0.85 ± 17% perf-profile.calltrace.cycles-pp.rcu_core.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread
1.00 ± 3% -0.1 0.85 ± 9% perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
0.77 ± 4% -0.1 0.66 ± 13% perf-profile.calltrace.cycles-pp.filp_close.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
1.17 ± 6% +0.1 1.29 ± 5% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_file_open_root.file_open_root
3.33 ± 5% +0.2 3.56 ± 2% perf-profile.calltrace.cycles-pp.do_file_open_root.file_open_root.do_handle_open.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.38 ± 5% +0.2 3.61 ± 2% perf-profile.calltrace.cycles-pp.file_open_root.do_handle_open.do_syscall_64.entry_SYSCALL_64_after_hwframe.open_by_handle_at
4.26 ± 3% -0.8 3.44 ± 2% perf-profile.children.cycles-pp.__x64_sys_openat
4.21 ± 3% -0.8 3.40 ± 2% perf-profile.children.cycles-pp.do_sys_openat2
3.47 ± 3% -0.8 2.69 ± 3% perf-profile.children.cycles-pp.do_filp_open
6.69 ± 3% -0.8 5.93 ± 2% perf-profile.children.cycles-pp.open64
2.59 ± 5% -0.7 1.89 ± 3% perf-profile.children.cycles-pp.do_dentry_open
3.35 ± 4% -0.7 2.66 ± 3% perf-profile.children.cycles-pp.do_open
6.40 ± 4% -0.6 5.80 ± 2% perf-profile.children.cycles-pp.path_openat
8.94 ± 3% -0.5 8.41 ± 2% perf-profile.children.cycles-pp.__close
2.38 ± 5% -0.5 1.88 ± 8% perf-profile.children.cycles-pp.__fput
2.95 ± 5% -0.5 2.46 ± 6% perf-profile.children.cycles-pp.exit_to_user_mode_loop
2.77 ± 5% -0.5 2.30 ± 7% perf-profile.children.cycles-pp.task_work_run
3.20 ± 5% -0.4 2.75 ± 5% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
2.89 ± 7% -0.4 2.44 ± 4% perf-profile.children.cycles-pp.dput
0.36 ± 8% -0.2 0.14 ± 16% perf-profile.children.cycles-pp.lockref_put_return
1.00 ± 3% -0.1 0.86 ± 10% perf-profile.children.cycles-pp.__x64_sys_close
0.77 ± 4% -0.1 0.66 ± 13% perf-profile.children.cycles-pp.filp_close
0.35 ± 15% -0.1 0.24 ± 16% perf-profile.children.cycles-pp.__slab_free
0.44 ± 13% -0.1 0.33 ± 8% perf-profile.children.cycles-pp.shmem_encode_fh
0.49 ± 6% -0.1 0.39 ± 3% perf-profile.children.cycles-pp.memcg_slab_post_alloc_hook
0.70 ± 7% -0.1 0.60 ± 9% perf-profile.children.cycles-pp.lockref_get
0.39 ± 8% -0.1 0.30 ± 24% perf-profile.children.cycles-pp.locks_remove_posix
0.34 ± 7% -0.1 0.26 ± 5% perf-profile.children.cycles-pp.__call_rcu_common
0.13 ± 8% -0.1 0.07 ± 9% perf-profile.children.cycles-pp.___slab_alloc
0.25 ± 12% -0.0 0.20 ± 11% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
0.37 ± 10% -0.0 0.33 ± 9% perf-profile.children.cycles-pp.rep_movs_alternative
0.08 ± 16% -0.0 0.05 ± 54% perf-profile.children.cycles-pp.obj_cgroup_charge
0.16 ± 12% -0.0 0.13 ± 4% perf-profile.children.cycles-pp.close_fd
0.13 ± 4% -0.0 0.10 ± 14% perf-profile.children.cycles-pp.is_vmalloc_addr
3.34 ± 5% +0.2 3.57 ± 2% perf-profile.children.cycles-pp.do_file_open_root
0.36 ± 8% -0.2 0.13 ± 19% perf-profile.self.cycles-pp.lockref_put_return
0.34 ± 15% -0.1 0.23 ± 16% perf-profile.self.cycles-pp.__slab_free
0.44 ± 13% -0.1 0.33 ± 10% perf-profile.self.cycles-pp.shmem_encode_fh
0.69 ± 7% -0.1 0.60 ± 9% perf-profile.self.cycles-pp.lockref_get
0.39 ± 7% -0.1 0.30 ± 25% perf-profile.self.cycles-pp.locks_remove_posix
0.37 ± 7% -0.1 0.29 ± 5% perf-profile.self.cycles-pp.memcg_slab_post_alloc_hook
0.20 ± 10% -0.1 0.15 ± 9% perf-profile.self.cycles-pp.__call_rcu_common
0.13 ± 21% -0.0 0.09 ± 28% perf-profile.self.cycles-pp.__legitimize_path
0.13 ± 6% -0.0 0.10 ± 14% perf-profile.self.cycles-pp.is_vmalloc_addr
0.10 ± 7% -0.0 0.08 ± 7% perf-profile.self.cycles-pp.do_handle_open
0.15 ± 11% +0.0 0.18 ± 5% perf-profile.self.cycles-pp.init_file
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
> On Jul 17, 2023, at 2:46 AM, kernel test robot <oliver.sang@intel.com> wrote: > > > hi, Chuck Lever, > > we reported a 3.0% improvement of stress-ng.handle.ops_per_sec for this commit > on > https://lore.kernel.org/oe-lkp/202307132153.a52cdb2d-oliver.sang@intel.com/ > > but now we noticed a regression, detail as below, FYI > > Hello, > > kernel test robot noticed a -15.5% regression of will-it-scale.per_thread_ops on: > > > commit: a1a690e009744e4526526b2f838beec5ef9233cc ("[PATCH v7 3/3] shmem: stable directory offsets") > url: https://github.com/intel-lab-lkp/linux/commits/Chuck-Lever/libfs-Add-directory-operations-for-stable-offsets/20230701-014925 > base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything > patch link: https://lore.kernel.org/all/168814734331.530310.3911190551060453102.stgit@manet.1015granger.net/ > patch subject: [PATCH v7 3/3] shmem: stable directory offsets > > testcase: will-it-scale > test machine: 104 threads 2 sockets (Skylake) with 192G memory > parameters: > > nr_task: 16 > mode: thread > test: unlink2 > cpufreq_governor: performance > > > In addition to that, the commit also has significant impact on the following tests: > > +------------------+-------------------------------------------------------------------------------------------------+ > | testcase: change | will-it-scale: will-it-scale.per_thread_ops -40.0% regression | > | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory | > | test parameters | cpufreq_governor=performance | > | | mode=thread | > | | nr_task=16 | > | | test=unlink2 | > +------------------+-------------------------------------------------------------------------------------------------+ > | testcase: change | stress-ng: stress-ng.handle.ops_per_sec 3.0% improvement | > | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory | > | test parameters | class=filesystem | > | | cpufreq_governor=performance | > | | disk=1SSD | > | | fs=ext4 | > | | nr_threads=10% | > | | test=handle | > | | testtime=60s | > +------------------+-------------------------------------------------------------------------------------------------+ > > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot <oliver.sang@intel.com> > | Closes: https://lore.kernel.org/oe-lkp/202307171436.29248fcf-oliver.sang@intel.com > > > Details are as below: > --------------------------------------------------------------------------------------------------> > > > To reproduce: > > git clone https://github.com/intel/lkp-tests.git > cd lkp-tests > sudo bin/lkp install job.yaml # job file is attached in this email I'm trying to reproduce the regression here, but the reproducer fails at this step with: ==> Installing package will-it-scale with /export/xfs/lkp-tests/sbin/pacman-LKP -U... warning: source_date_epoch_from_changelog set but %changelog is missing Executing(%install): /bin/sh -e /var/tmp/rpm-tmp.Py4eQi + umask 022 + cd /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILD + '[' /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 '!=' / ']' + rm -rf /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 ++ dirname /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 + mkdir -p /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT + mkdir /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 + CFLAGS='-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong --param=ssp-buffer-size=4' + export CFLAGS + CXXFLAGS='-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong --param=ssp-buffer-size=4' + export CXXFLAGS + FFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -I/usr/lib64/gfortran/modules' + export FFLAGS + FCFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -I/usr/lib64/gfortran/modules' + export FCFLAGS + LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro + export LDFLAGS + LT_SYS_LIBRARY_PATH=/usr/lib64: + export LT_SYS_LIBRARY_PATH + CC=gcc + export CC + CXX=g++ + export CXX + cp -a /export/xfs/lkp-tests/programs/will-it-scale/pkg/will-it-scale-lkp/lkp /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 + /usr/lib/rpm/check-buildroot + /usr/lib/rpm/redhat/brp-ldconfig + /usr/lib/rpm/brp-compress + /usr/lib/rpm/brp-strip /usr/bin/strip + /usr/lib/rpm/brp-strip-comment-note /usr/bin/strip /usr/bin/objdump /usr/bin/objdump: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/writeseek2/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/dup1_threads': No such file /usr/bin/strip: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/writeseek2/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/dup1_threads': No such file /usr/bin/objdump: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x8/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/brk1_processes': No such file /usr/bin/strip: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x8/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/brk1_processes': No such file /usr/bin/objdump: '/export/xfs/lkp-tests/programs/will-it-sc_processes': No such file /usr/bin/strip: '/export/xfs/lkp-tests/programs/will-it-sc_processes': No such file /usr/bin/objdump: '6_64/lkp/benchmarks/will-it-scale/pread2_threads': No such file /usr/bin/strip: '6_64/lkp/benchmarks/will-it-scale/pread2_threads': No such file /usr/bin/objdump: 'ale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/poll2_processes': No such file /usr/bin/strip: 'ale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/poll2_processes': No such file + /usr/lib/rpm/redhat/brp-strip-lto /usr/bin/strip + /usr/lib/rpm/brp-strip-static-archive /usr/bin/strip + /usr/lib/rpm/check-rpaths + /usr/lib/rpm/redhat/brp-mangle-shebangs mangling shebang in /lkp/benchmarks/python3/bin/python3.8-config from /bin/sh to #!/usr/bin/sh *** ERROR: ambiguous python shebang in /lkp/benchmarks/python3/lib/python3.8/encodings/rot_13.py: #!/usr/bin/env python. Change it to python3 (or python2) explicitly. mangling shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/pgen2/token.py from /usr/bin/env python3 to #!/usr/bin/python3 *** ERROR: ambiguous python shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/tests/data/different_encoding.py: #!/usr/bin/env python. Change it to python3 (or python2) explicitly. *** ERROR: ambiguous python shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/tests/data/false_encoding.py: #!/usr/bin/env python. Change it to python3 (or python2) explicitly. mangling shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/tests/pytree_idempotency.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/config-3.8-x86_64-linux-gnu/makesetup from /bin/sh to #!/usr/bin/sh mangling shebang in /lkp/benchmarks/python3/lib/python3.8/config-3.8-x86_64-linux-gnu/install-sh from /bin/sh to #!/usr/bin/sh mangling shebang in /lkp/benchmarks/python3/lib/python3.8/ctypes/macholib/fetch_macholib from /bin/sh to #!/usr/bin/sh mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/bytedesign.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/clock.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/forest.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/fractalcurves.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/lindenmayer.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/minimal_hanoi.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/paint.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/peace.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/penrose.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/planet_and_moon.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/tree.py from /usr/bin/env python3 to #!/usr/bin/python3 *** WARNING: ./lkp/benchmarks/python3/lib/python3.8/turtledemo/two_canvases.py is executable but has no shebang, removing executable bit mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/yinyang.py from /usr/bin/env python3 to #!/usr/bin/python3 *** WARNING: ./lkp/benchmarks/python3/lib/python3.8/idlelib/idle.bat is executable but has no shebang, removing executable bit mangling shebang in /lkp/benchmarks/python3/lib/python3.8/idlelib/pyshell.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/ziptestdata/exe_with_z64 from /bin/bash to #!/usr/bin/bash mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/ziptestdata/exe_with_zip from /bin/bash to #!/usr/bin/bash mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/ziptestdata/header.sh from /bin/bash to #!/usr/bin/bash mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/bisect_cmd.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/curses_tests.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/regrtest.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/re_tests.py from /usr/bin/env python3 to #!/usr/bin/python3 *** WARNING: ./lkp/benchmarks/python3/lib/python3.8/test/test_dataclasses.py is executable but has no shebang, removing executable bit mangling shebang in /lkp/benchmarks/python3/lib/python3.8/base64.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/cProfile.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/pdb.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/platform.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/profile.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/quopri.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/smtpd.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/smtplib.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/tabnanny.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/tarfile.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/timeit.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/trace.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/uu.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/python3/lib/python3.8/webbrowser.py from /usr/bin/env python3 to #!/usr/bin/python3 mangling shebang in /lkp/benchmarks/will-it-scale/runalltests from /bin/sh to #!/usr/bin/sh error: Bad exit status from /var/tmp/rpm-tmp.Py4eQi (%install) RPM build warnings: source_date_epoch_from_changelog set but %changelog is missing RPM build errors: Bad exit status from /var/tmp/rpm-tmp.Py4eQi (%install) error: open of /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/RPMS/will-it-scale-LKP.rpm failed: No such file or directory ==> WARNING: Failed to install built package(s). [cel@manet lkp-tests]$ I'm on Fedora 38 x86_64. -- Chuck Lever
> On Jul 22, 2023, at 4:33 PM, Chuck Lever III <chuck.lever@oracle.com> wrote: > > > >> On Jul 17, 2023, at 2:46 AM, kernel test robot <oliver.sang@intel.com> wrote: >> >> >> hi, Chuck Lever, >> >> we reported a 3.0% improvement of stress-ng.handle.ops_per_sec for this commit >> on >> https://lore.kernel.org/oe-lkp/202307132153.a52cdb2d-oliver.sang@intel.com/ >> >> but now we noticed a regression, detail as below, FYI >> >> Hello, >> >> kernel test robot noticed a -15.5% regression of will-it-scale.per_thread_ops on: >> >> >> commit: a1a690e009744e4526526b2f838beec5ef9233cc ("[PATCH v7 3/3] shmem: stable directory offsets") >> url: https://github.com/intel-lab-lkp/linux/commits/Chuck-Lever/libfs-Add-directory-operations-for-stable-offsets/20230701-014925 >> base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything >> patch link: https://lore.kernel.org/all/168814734331.530310.3911190551060453102.stgit@manet.1015granger.net/ >> patch subject: [PATCH v7 3/3] shmem: stable directory offsets >> >> testcase: will-it-scale >> test machine: 104 threads 2 sockets (Skylake) with 192G memory >> parameters: >> >> nr_task: 16 >> mode: thread >> test: unlink2 >> cpufreq_governor: performance >> >> >> In addition to that, the commit also has significant impact on the following tests: >> >> +------------------+-------------------------------------------------------------------------------------------------+ >> | testcase: change | will-it-scale: will-it-scale.per_thread_ops -40.0% regression | >> | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory | >> | test parameters | cpufreq_governor=performance | >> | | mode=thread | >> | | nr_task=16 | >> | | test=unlink2 | >> +------------------+-------------------------------------------------------------------------------------------------+ >> | testcase: change | stress-ng: stress-ng.handle.ops_per_sec 3.0% improvement | >> | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory | >> | test parameters | class=filesystem | >> | | cpufreq_governor=performance | >> | | disk=1SSD | >> | | fs=ext4 | >> | | nr_threads=10% | >> | | test=handle | >> | | testtime=60s | >> +------------------+-------------------------------------------------------------------------------------------------+ >> >> >> If you fix the issue in a separate patch/commit (i.e. not just a new version of >> the same patch/commit), kindly add following tags >> | Reported-by: kernel test robot <oliver.sang@intel.com> >> | Closes: https://lore.kernel.org/oe-lkp/202307171436.29248fcf-oliver.sang@intel.com >> >> >> Details are as below: >> --------------------------------------------------------------------------------------------------> >> >> >> To reproduce: >> >> git clone https://github.com/intel/lkp-tests.git >> cd lkp-tests >> sudo bin/lkp install job.yaml # job file is attached in this email Has anyone from the lkp or ltp teams had a chance to look at this? I'm stuck without this reproducer. > I'm trying to reproduce the regression here, but the reproducer fails > at this step with: > > ==> Installing package will-it-scale with /export/xfs/lkp-tests/sbin/pacman-LKP -U... > warning: source_date_epoch_from_changelog set but %changelog is missing > Executing(%install): /bin/sh -e /var/tmp/rpm-tmp.Py4eQi > + umask 022 > + cd /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILD > + '[' /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 '!=' / ']' > + rm -rf /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 > ++ dirname /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 > + mkdir -p /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT > + mkdir /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 > + CFLAGS='-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong --param=ssp-buffer-size=4' > + export CFLAGS > + CXXFLAGS='-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong --param=ssp-buffer-size=4' > + export CXXFLAGS > + FFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -I/usr/lib64/gfortran/modules' > + export FFLAGS > + FCFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -I/usr/lib64/gfortran/modules' > + export FCFLAGS > + LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro > + export LDFLAGS > + LT_SYS_LIBRARY_PATH=/usr/lib64: > + export LT_SYS_LIBRARY_PATH > + CC=gcc > + export CC > + CXX=g++ > + export CXX > + cp -a /export/xfs/lkp-tests/programs/will-it-scale/pkg/will-it-scale-lkp/lkp /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 > + /usr/lib/rpm/check-buildroot > + /usr/lib/rpm/redhat/brp-ldconfig > + /usr/lib/rpm/brp-compress > + /usr/lib/rpm/brp-strip /usr/bin/strip > + /usr/lib/rpm/brp-strip-comment-note /usr/bin/strip /usr/bin/objdump > /usr/bin/objdump: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/writeseek2/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/dup1_threads': No such file > /usr/bin/strip: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/writeseek2/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/dup1_threads': No such file > /usr/bin/objdump: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x8/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/brk1_processes': No such file > /usr/bin/strip: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x8/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/brk1_processes': No such file > /usr/bin/objdump: '/export/xfs/lkp-tests/programs/will-it-sc_processes': No such file > /usr/bin/strip: '/export/xfs/lkp-tests/programs/will-it-sc_processes': No such file > /usr/bin/objdump: '6_64/lkp/benchmarks/will-it-scale/pread2_threads': No such file > /usr/bin/strip: '6_64/lkp/benchmarks/will-it-scale/pread2_threads': No such file > /usr/bin/objdump: 'ale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/poll2_processes': No such file > /usr/bin/strip: 'ale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/poll2_processes': No such file > + /usr/lib/rpm/redhat/brp-strip-lto /usr/bin/strip > + /usr/lib/rpm/brp-strip-static-archive /usr/bin/strip > + /usr/lib/rpm/check-rpaths > + /usr/lib/rpm/redhat/brp-mangle-shebangs > mangling shebang in /lkp/benchmarks/python3/bin/python3.8-config from /bin/sh to #!/usr/bin/sh > *** ERROR: ambiguous python shebang in /lkp/benchmarks/python3/lib/python3.8/encodings/rot_13.py: #!/usr/bin/env python. Change it to python3 (or python2) explicitly. > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/pgen2/token.py from /usr/bin/env python3 to #!/usr/bin/python3 > *** ERROR: ambiguous python shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/tests/data/different_encoding.py: #!/usr/bin/env python. Change it to python3 (or python2) explicitly. > *** ERROR: ambiguous python shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/tests/data/false_encoding.py: #!/usr/bin/env python. Change it to python3 (or python2) explicitly. > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/tests/pytree_idempotency.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/config-3.8-x86_64-linux-gnu/makesetup from /bin/sh to #!/usr/bin/sh > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/config-3.8-x86_64-linux-gnu/install-sh from /bin/sh to #!/usr/bin/sh > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/ctypes/macholib/fetch_macholib from /bin/sh to #!/usr/bin/sh > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/bytedesign.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/clock.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/forest.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/fractalcurves.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/lindenmayer.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/minimal_hanoi.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/paint.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/peace.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/penrose.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/planet_and_moon.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/tree.py from /usr/bin/env python3 to #!/usr/bin/python3 > *** WARNING: ./lkp/benchmarks/python3/lib/python3.8/turtledemo/two_canvases.py is executable but has no shebang, removing executable bit > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/yinyang.py from /usr/bin/env python3 to #!/usr/bin/python3 > *** WARNING: ./lkp/benchmarks/python3/lib/python3.8/idlelib/idle.bat is executable but has no shebang, removing executable bit > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/idlelib/pyshell.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/ziptestdata/exe_with_z64 from /bin/bash to #!/usr/bin/bash > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/ziptestdata/exe_with_zip from /bin/bash to #!/usr/bin/bash > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/ziptestdata/header.sh from /bin/bash to #!/usr/bin/bash > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/bisect_cmd.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/curses_tests.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/regrtest.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/re_tests.py from /usr/bin/env python3 to #!/usr/bin/python3 > *** WARNING: ./lkp/benchmarks/python3/lib/python3.8/test/test_dataclasses.py is executable but has no shebang, removing executable bit > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/base64.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/cProfile.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/pdb.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/platform.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/profile.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/quopri.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/smtpd.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/smtplib.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/tabnanny.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/tarfile.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/timeit.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/trace.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/uu.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/webbrowser.py from /usr/bin/env python3 to #!/usr/bin/python3 > mangling shebang in /lkp/benchmarks/will-it-scale/runalltests from /bin/sh to #!/usr/bin/sh > error: Bad exit status from /var/tmp/rpm-tmp.Py4eQi (%install) > > RPM build warnings: > source_date_epoch_from_changelog set but %changelog is missing > > RPM build errors: > Bad exit status from /var/tmp/rpm-tmp.Py4eQi (%install) > error: open of /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/RPMS/will-it-scale-LKP.rpm failed: No such file or directory > ==> WARNING: Failed to install built package(s). > [cel@manet lkp-tests]$ > > I'm on Fedora 38 x86_64. > > > -- > Chuck Lever -- Chuck Lever
On Tue, Jul 25, 2023 at 03:12:22PM +0000, Chuck Lever III wrote: > > > > On Jul 22, 2023, at 4:33 PM, Chuck Lever III <chuck.lever@oracle.com> wrote: > > > > > > > >> On Jul 17, 2023, at 2:46 AM, kernel test robot <oliver.sang@intel.com> wrote: > >> > >> > >> hi, Chuck Lever, > >> > >> we reported a 3.0% improvement of stress-ng.handle.ops_per_sec for this commit > >> on > >> https://lore.kernel.org/oe-lkp/202307132153.a52cdb2d-oliver.sang@intel.com/ > >> > >> but now we noticed a regression, detail as below, FYI > >> > >> Hello, > >> > >> kernel test robot noticed a -15.5% regression of will-it-scale.per_thread_ops on: > >> > >> > >> commit: a1a690e009744e4526526b2f838beec5ef9233cc ("[PATCH v7 3/3] shmem: stable directory offsets") > >> url: https://github.com/intel-lab-lkp/linux/commits/Chuck-Lever/libfs-Add-directory-operations-for-stable-offsets/20230701-014925 > >> base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything > >> patch link: https://lore.kernel.org/all/168814734331.530310.3911190551060453102.stgit@manet.1015granger.net/ > >> patch subject: [PATCH v7 3/3] shmem: stable directory offsets > >> > >> testcase: will-it-scale > >> test machine: 104 threads 2 sockets (Skylake) with 192G memory > >> parameters: > >> > >> nr_task: 16 > >> mode: thread > >> test: unlink2 > >> cpufreq_governor: performance > >> > >> > >> In addition to that, the commit also has significant impact on the following tests: > >> > >> +------------------+-------------------------------------------------------------------------------------------------+ > >> | testcase: change | will-it-scale: will-it-scale.per_thread_ops -40.0% regression | > >> | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory | > >> | test parameters | cpufreq_governor=performance | > >> | | mode=thread | > >> | | nr_task=16 | > >> | | test=unlink2 | > >> +------------------+-------------------------------------------------------------------------------------------------+ > >> | testcase: change | stress-ng: stress-ng.handle.ops_per_sec 3.0% improvement | > >> | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory | > >> | test parameters | class=filesystem | > >> | | cpufreq_governor=performance | > >> | | disk=1SSD | > >> | | fs=ext4 | > >> | | nr_threads=10% | > >> | | test=handle | > >> | | testtime=60s | > >> +------------------+-------------------------------------------------------------------------------------------------+ > >> > >> > >> If you fix the issue in a separate patch/commit (i.e. not just a new version of > >> the same patch/commit), kindly add following tags > >> | Reported-by: kernel test robot <oliver.sang@intel.com> > >> | Closes: https://lore.kernel.org/oe-lkp/202307171436.29248fcf-oliver.sang@intel.com > >> > >> > >> Details are as below: > >> --------------------------------------------------------------------------------------------------> > >> > >> > >> To reproduce: > >> > >> git clone https://github.com/intel/lkp-tests.git > >> cd lkp-tests > >> sudo bin/lkp install job.yaml # job file is attached in this email > > Has anyone from the lkp or ltp teams had a chance to look at this? > I'm stuck without this reproducer. Sorry about this that fedora is not fully supported now [1]. A possible way is to run the test inside docker [2]. But we haven't fully tested the reproduce steps in docker yet, which is in our TODO list. Also a concern is that docker environment probably can't reproduce the performance regression. For now, not sure whether it is convenient for you to have a ubuntu or debian environment to give a try? Another alternative is if you have new patch, we can assist to verify it on our machines. [1] https://github.com/intel/lkp-tests#supported-distributions [2] https://github.com/intel/lkp-tests/tree/master/docker > > > > I'm trying to reproduce the regression here, but the reproducer fails > > at this step with: > > > > ==> Installing package will-it-scale with /export/xfs/lkp-tests/sbin/pacman-LKP -U... > > warning: source_date_epoch_from_changelog set but %changelog is missing > > Executing(%install): /bin/sh -e /var/tmp/rpm-tmp.Py4eQi > > + umask 022 > > + cd /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILD > > + '[' /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 '!=' / ']' > > + rm -rf /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 > > ++ dirname /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 > > + mkdir -p /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT > > + mkdir /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 > > + CFLAGS='-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong --param=ssp-buffer-size=4' > > + export CFLAGS > > + CXXFLAGS='-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong --param=ssp-buffer-size=4' > > + export CXXFLAGS > > + FFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -I/usr/lib64/gfortran/modules' > > + export FFLAGS > > + FCFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -I/usr/lib64/gfortran/modules' > > + export FCFLAGS > > + LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro > > + export LDFLAGS > > + LT_SYS_LIBRARY_PATH=/usr/lib64: > > + export LT_SYS_LIBRARY_PATH > > + CC=gcc > > + export CC > > + CXX=g++ > > + export CXX > > + cp -a /export/xfs/lkp-tests/programs/will-it-scale/pkg/will-it-scale-lkp/lkp /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64 > > + /usr/lib/rpm/check-buildroot > > + /usr/lib/rpm/redhat/brp-ldconfig > > + /usr/lib/rpm/brp-compress > > + /usr/lib/rpm/brp-strip /usr/bin/strip > > + /usr/lib/rpm/brp-strip-comment-note /usr/bin/strip /usr/bin/objdump > > /usr/bin/objdump: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/writeseek2/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/dup1_threads': No such file > > /usr/bin/strip: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/writeseek2/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/dup1_threads': No such file > > /usr/bin/objdump: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x8/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/brk1_processes': No such file > > /usr/bin/strip: '/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x8/export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/brk1_processes': No such file > > /usr/bin/objdump: '/export/xfs/lkp-tests/programs/will-it-sc_processes': No such file > > /usr/bin/strip: '/export/xfs/lkp-tests/programs/will-it-sc_processes': No such file > > /usr/bin/objdump: '6_64/lkp/benchmarks/will-it-scale/pread2_threads': No such file > > /usr/bin/strip: '6_64/lkp/benchmarks/will-it-scale/pread2_threads': No such file > > /usr/bin/objdump: 'ale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/poll2_processes': No such file > > /usr/bin/strip: 'ale/pkg/rpm_build/BUILDROOT/will-it-scale-LKP-1-1.x86_64/lkp/benchmarks/will-it-scale/poll2_processes': No such file > > + /usr/lib/rpm/redhat/brp-strip-lto /usr/bin/strip > > + /usr/lib/rpm/brp-strip-static-archive /usr/bin/strip > > + /usr/lib/rpm/check-rpaths > > + /usr/lib/rpm/redhat/brp-mangle-shebangs > > mangling shebang in /lkp/benchmarks/python3/bin/python3.8-config from /bin/sh to #!/usr/bin/sh > > *** ERROR: ambiguous python shebang in /lkp/benchmarks/python3/lib/python3.8/encodings/rot_13.py: #!/usr/bin/env python. Change it to python3 (or python2) explicitly. > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/pgen2/token.py from /usr/bin/env python3 to #!/usr/bin/python3 > > *** ERROR: ambiguous python shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/tests/data/different_encoding.py: #!/usr/bin/env python. Change it to python3 (or python2) explicitly. > > *** ERROR: ambiguous python shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/tests/data/false_encoding.py: #!/usr/bin/env python. Change it to python3 (or python2) explicitly. > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/lib2to3/tests/pytree_idempotency.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/config-3.8-x86_64-linux-gnu/makesetup from /bin/sh to #!/usr/bin/sh > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/config-3.8-x86_64-linux-gnu/install-sh from /bin/sh to #!/usr/bin/sh > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/ctypes/macholib/fetch_macholib from /bin/sh to #!/usr/bin/sh > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/bytedesign.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/clock.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/forest.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/fractalcurves.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/lindenmayer.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/minimal_hanoi.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/paint.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/peace.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/penrose.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/planet_and_moon.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/tree.py from /usr/bin/env python3 to #!/usr/bin/python3 > > *** WARNING: ./lkp/benchmarks/python3/lib/python3.8/turtledemo/two_canvases.py is executable but has no shebang, removing executable bit > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/turtledemo/yinyang.py from /usr/bin/env python3 to #!/usr/bin/python3 > > *** WARNING: ./lkp/benchmarks/python3/lib/python3.8/idlelib/idle.bat is executable but has no shebang, removing executable bit > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/idlelib/pyshell.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/ziptestdata/exe_with_z64 from /bin/bash to #!/usr/bin/bash > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/ziptestdata/exe_with_zip from /bin/bash to #!/usr/bin/bash > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/ziptestdata/header.sh from /bin/bash to #!/usr/bin/bash > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/bisect_cmd.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/curses_tests.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/regrtest.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/test/re_tests.py from /usr/bin/env python3 to #!/usr/bin/python3 > > *** WARNING: ./lkp/benchmarks/python3/lib/python3.8/test/test_dataclasses.py is executable but has no shebang, removing executable bit > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/base64.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/cProfile.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/pdb.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/platform.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/profile.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/quopri.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/smtpd.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/smtplib.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/tabnanny.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/tarfile.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/timeit.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/trace.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/uu.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/python3/lib/python3.8/webbrowser.py from /usr/bin/env python3 to #!/usr/bin/python3 > > mangling shebang in /lkp/benchmarks/will-it-scale/runalltests from /bin/sh to #!/usr/bin/sh > > error: Bad exit status from /var/tmp/rpm-tmp.Py4eQi (%install) > > > > RPM build warnings: > > source_date_epoch_from_changelog set but %changelog is missing > > > > RPM build errors: > > Bad exit status from /var/tmp/rpm-tmp.Py4eQi (%install) > > error: open of /export/xfs/lkp-tests/programs/will-it-scale/pkg/rpm_build/RPMS/will-it-scale-LKP.rpm failed: No such file or directory > > ==> WARNING: Failed to install built package(s). > > [cel@manet lkp-tests]$ > > > > I'm on Fedora 38 x86_64. > > > > > > -- > > Chuck Lever > > > -- > Chuck Lever > > >
On Tue, Jul 25, 2023 at 11:54:26PM +0800, Philip Li wrote: > On Tue, Jul 25, 2023 at 03:12:22PM +0000, Chuck Lever III wrote: > > > > > > > On Jul 22, 2023, at 4:33 PM, Chuck Lever III <chuck.lever@oracle.com> wrote: > > > > > > > > > > > >> On Jul 17, 2023, at 2:46 AM, kernel test robot <oliver.sang@intel.com> wrote: > > >> > > >> > > >> hi, Chuck Lever, > > >> > > >> we reported a 3.0% improvement of stress-ng.handle.ops_per_sec for this commit > > >> on > > >> https://lore.kernel.org/oe-lkp/202307132153.a52cdb2d-oliver.sang@intel.com/ > > >> > > >> but now we noticed a regression, detail as below, FYI > > >> > > >> Hello, > > >> > > >> kernel test robot noticed a -15.5% regression of will-it-scale.per_thread_ops on: > > >> > > >> > > >> commit: a1a690e009744e4526526b2f838beec5ef9233cc ("[PATCH v7 3/3] shmem: stable directory offsets") > > >> url: https://github.com/intel-lab-lkp/linux/commits/Chuck-Lever/libfs-Add-directory-operations-for-stable-offsets/20230701-014925 > > >> base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything > > >> patch link: https://lore.kernel.org/all/168814734331.530310.3911190551060453102.stgit@manet.1015granger.net/ > > >> patch subject: [PATCH v7 3/3] shmem: stable directory offsets > > >> > > >> testcase: will-it-scale > > >> test machine: 104 threads 2 sockets (Skylake) with 192G memory > > >> parameters: > > >> > > >> nr_task: 16 > > >> mode: thread > > >> test: unlink2 > > >> cpufreq_governor: performance > > >> > > >> > > >> In addition to that, the commit also has significant impact on the following tests: > > >> > > >> +------------------+-------------------------------------------------------------------------------------------------+ > > >> | testcase: change | will-it-scale: will-it-scale.per_thread_ops -40.0% regression | > > >> | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory | > > >> | test parameters | cpufreq_governor=performance | > > >> | | mode=thread | > > >> | | nr_task=16 | > > >> | | test=unlink2 | > > >> +------------------+-------------------------------------------------------------------------------------------------+ > > >> | testcase: change | stress-ng: stress-ng.handle.ops_per_sec 3.0% improvement | > > >> | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory | > > >> | test parameters | class=filesystem | > > >> | | cpufreq_governor=performance | > > >> | | disk=1SSD | > > >> | | fs=ext4 | > > >> | | nr_threads=10% | > > >> | | test=handle | > > >> | | testtime=60s | > > >> +------------------+-------------------------------------------------------------------------------------------------+ > > >> > > >> > > >> If you fix the issue in a separate patch/commit (i.e. not just a new version of > > >> the same patch/commit), kindly add following tags > > >> | Reported-by: kernel test robot <oliver.sang@intel.com> > > >> | Closes: https://lore.kernel.org/oe-lkp/202307171436.29248fcf-oliver.sang@intel.com > > >> > > >> > > >> Details are as below: > > >> --------------------------------------------------------------------------------------------------> > > >> > > >> > > >> To reproduce: > > >> > > >> git clone https://github.com/intel/lkp-tests.git > > >> cd lkp-tests > > >> sudo bin/lkp install job.yaml # job file is attached in this email > > > > Has anyone from the lkp or ltp teams had a chance to look at this? > > I'm stuck without this reproducer. > > Sorry about this that fedora is not fully supported now [1]. A possible way > is to run the test inside docker [2]. But we haven't fully tested the > reproduce steps in docker yet, which is in our TODO list. Also a concern is > that docker environment probably can't reproduce the performance regression. > > For now, not sure whether it is convenient for you to have a ubuntu or debian > environment to give a try? Another alternative is if you have new patch, we > can assist to verify it on our machines. So while we have your attention here. I've asked this a while ago in another mail: It would be really really helpful if there was a way for us to ask/trigger a perf test run for specific branches/patches we suspect of being performance sensitive. It's a bit of a shame that we have no simple way of submitting a custom job and get performance results reported. I know that resources for this are probably scarce but some way to at least request it would be really really nice.
On Tue, Jul 25, 2023 at 05:59:22PM +0200, Christian Brauner wrote: > On Tue, Jul 25, 2023 at 11:54:26PM +0800, Philip Li wrote: > > On Tue, Jul 25, 2023 at 03:12:22PM +0000, Chuck Lever III wrote: > > > > > > > > > > On Jul 22, 2023, at 4:33 PM, Chuck Lever III <chuck.lever@oracle.com> wrote: > > > > > > > > > > > > > > > >> On Jul 17, 2023, at 2:46 AM, kernel test robot <oliver.sang@intel.com> wrote: > > > >> > > > >> > > > >> hi, Chuck Lever, > > > >> > > > >> we reported a 3.0% improvement of stress-ng.handle.ops_per_sec for this commit > > > >> on > > > >> https://lore.kernel.org/oe-lkp/202307132153.a52cdb2d-oliver.sang@intel.com/ > > > >> > > > >> but now we noticed a regression, detail as below, FYI > > > >> > > > >> Hello, > > > >> > > > >> kernel test robot noticed a -15.5% regression of will-it-scale.per_thread_ops on: > > > >> > > > >> > > > >> commit: a1a690e009744e4526526b2f838beec5ef9233cc ("[PATCH v7 3/3] shmem: stable directory offsets") > > > >> url: https://github.com/intel-lab-lkp/linux/commits/Chuck-Lever/libfs-Add-directory-operations-for-stable-offsets/20230701-014925 > > > >> base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything > > > >> patch link: https://lore.kernel.org/all/168814734331.530310.3911190551060453102.stgit@manet.1015granger.net/ > > > >> patch subject: [PATCH v7 3/3] shmem: stable directory offsets > > > >> > > > >> testcase: will-it-scale > > > >> test machine: 104 threads 2 sockets (Skylake) with 192G memory > > > >> parameters: > > > >> > > > >> nr_task: 16 > > > >> mode: thread > > > >> test: unlink2 > > > >> cpufreq_governor: performance > > > >> > > > >> > > > >> In addition to that, the commit also has significant impact on the following tests: > > > >> > > > >> +------------------+-------------------------------------------------------------------------------------------------+ > > > >> | testcase: change | will-it-scale: will-it-scale.per_thread_ops -40.0% regression | > > > >> | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory | > > > >> | test parameters | cpufreq_governor=performance | > > > >> | | mode=thread | > > > >> | | nr_task=16 | > > > >> | | test=unlink2 | > > > >> +------------------+-------------------------------------------------------------------------------------------------+ > > > >> | testcase: change | stress-ng: stress-ng.handle.ops_per_sec 3.0% improvement | > > > >> | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory | > > > >> | test parameters | class=filesystem | > > > >> | | cpufreq_governor=performance | > > > >> | | disk=1SSD | > > > >> | | fs=ext4 | > > > >> | | nr_threads=10% | > > > >> | | test=handle | > > > >> | | testtime=60s | > > > >> +------------------+-------------------------------------------------------------------------------------------------+ > > > >> > > > >> > > > >> If you fix the issue in a separate patch/commit (i.e. not just a new version of > > > >> the same patch/commit), kindly add following tags > > > >> | Reported-by: kernel test robot <oliver.sang@intel.com> > > > >> | Closes: https://lore.kernel.org/oe-lkp/202307171436.29248fcf-oliver.sang@intel.com > > > >> > > > >> > > > >> Details are as below: > > > >> --------------------------------------------------------------------------------------------------> > > > >> > > > >> > > > >> To reproduce: > > > >> > > > >> git clone https://github.com/intel/lkp-tests.git > > > >> cd lkp-tests > > > >> sudo bin/lkp install job.yaml # job file is attached in this email > > > > > > Has anyone from the lkp or ltp teams had a chance to look at this? > > > I'm stuck without this reproducer. > > > > Sorry about this that fedora is not fully supported now [1]. A possible way > > is to run the test inside docker [2]. But we haven't fully tested the > > reproduce steps in docker yet, which is in our TODO list. Also a concern is > > that docker environment probably can't reproduce the performance regression. > > > > For now, not sure whether it is convenient for you to have a ubuntu or debian > > environment to give a try? Another alternative is if you have new patch, we > > can assist to verify it on our machines. > > So while we have your attention here. I've asked this a while ago in > another mail: It would be really really helpful if there was a way for > us to ask/trigger a perf test run for specific branches/patches we > suspect of being performance sensitive. > > It's a bit of a shame that we have no simple way of submitting a custom > job and get performance results reported. I know that resources for this > are probably scarce but some way to at least request it would be really > really nice. Apologize for this limitation. We have some mid-term TODO list to allow the verification of reported issue (start from build report) for fix patch. We will consider runtime side as well per this input to provide a better experience. And we can start with a controlled scope like to queue the test in the report, so test suite/parameters/platform is in a manageable manner. Thanks for the input.
On Fri, 30 Jun 2023 at 13:49:03 -0400, Chuck Lever wrote: > From: Chuck Lever <chuck.lever@oracle.com> > > The current cursor-based directory offset mechanism doesn't work > when a tmpfs filesystem is exported via NFS. This is because NFS > clients do not open directories. Each server-side READDIR operation > has to open the directory, read it, then close it. The cursor state > for that directory, being associated strictly with the opened > struct file, is thus discarded after each NFS READDIR operation. > > Directory offsets are cached not only by NFS clients, but also by > user space libraries on those clients. Essentially there is no way > to invalidate those caches when directory offsets have changed on > an NFS server after the offset-to-dentry mapping changes. Thus the > whole application stack depends on unchanging directory offsets. > > The solution we've come up with is to make the directory offset for > each file in a tmpfs filesystem stable for the life of the directory > entry it represents. > > shmem_readdir() and shmem_dir_llseek() now use an xarray to map each > directory offset (an loff_t integer) to the memory address of a > struct dentry. I believe this patch is responsible for a tmpfs behaviour change when a directory is modified while being read. The following test program #include <dirent.h> #include <err.h> #include <fcntl.h> #include <stdio.h> #include <stdlib.h> #include <sys/stat.h> #include <unistd.h> int main(int argc, char *argv[]) { const char *tmp = "/tmp"; if (argc >= 2) tmp = argv[1]; char *dir_path; if (asprintf(&dir_path, "%s/foo.XXXXXX", tmp) < 0) err(EXIT_FAILURE, "asprintf()"); if (!mkdtemp(dir_path)) err(EXIT_FAILURE, "mkdtemp(%s)", dir_path); char *file_path; if (asprintf(&file_path, "%s/bar", dir_path) < 0) err(EXIT_FAILURE, "asprintf()"); if (creat(file_path, 0644) < 0) err(EXIT_FAILURE, "creat(%s)", file_path); DIR *dir = opendir(dir_path); if (!dir) err(EXIT_FAILURE, "opendir(%s)", dir_path); struct dirent *de; while ((de = readdir(dir))) { printf("readdir(): %s/%s\n", dir_path, de->d_name); if (de->d_name[0] == '.') continue; if (unlink(file_path) != 0) err(EXIT_FAILURE, "unlink(%s)", file_path); if (creat(file_path, 0644) < 0) err(EXIT_FAILURE, "creat(%s)", file_path); } return EXIT_SUCCESS; } when run on Linux 6.5, doesn't print the new directory entry: tavianator@graphene $ uname -a Linux graphene 6.5.9-arch2-1 #1 SMP PREEMPT_DYNAMIC Thu, 26 Oct 2023 00:52:20 +0000 x86_64 GNU/Linux tavianator@graphene $ gcc -Wall foo.c -o foo tavianator@graphene $ ./foo readdir(): /tmp/foo.wgmdmm/. readdir(): /tmp/foo.wgmdmm/.. readdir(): /tmp/foo.wgmdmm/bar But on Linux 6.6, readdir() never stops: tavianator@tachyon $ uname -a Linux tachyon 6.6.1-arch1-1 #1 SMP PREEMPT_DYNAMIC Wed, 08 Nov 2023 16:05:38 +0000 x86_64 GNU/Linux tavianator@tachyon $ gcc foo.c -o foo tavianator@tachyon $ ./foo readdir(): /tmp/foo.XnIRqj/. readdir(): /tmp/foo.XnIRqj/.. readdir(): /tmp/foo.XnIRqj/bar readdir(): /tmp/foo.XnIRqj/bar readdir(): /tmp/foo.XnIRqj/bar readdir(): /tmp/foo.XnIRqj/bar readdir(): /tmp/foo.XnIRqj/bar readdir(): /tmp/foo.XnIRqj/bar readdir(): /tmp/foo.XnIRqj/bar readdir(): /tmp/foo.XnIRqj/bar ... foo: creat(/tmp/foo.TTL6Fg/bar): Too many open files POSIX says[1] > If a file is removed from or added to the directory after the most recent > call to opendir() or rewinddir(), whether a subsequent call to readdir() > returns an entry for that file is unspecified. so this isn't necessarily a *bug*, but I just wanted to point out the behaviour change. I only noticed it because it broke one of my tests in bfs[2] (in a non-default build configuration). [1]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/readdir.html [2]: https://github.com/tavianator/bfs/blob/main/tests/gnu/ignore_readdir_race_notdir.sh
On Mon, Nov 13, 2023 at 01:06:16PM -0500, tavianator@tavianator.com wrote: > On Fri, 30 Jun 2023 at 13:49:03 -0400, Chuck Lever wrote: > > From: Chuck Lever <chuck.lever@oracle.com> > > > > The current cursor-based directory offset mechanism doesn't work > > when a tmpfs filesystem is exported via NFS. This is because NFS > > clients do not open directories. Each server-side READDIR operation > > has to open the directory, read it, then close it. The cursor state > > for that directory, being associated strictly with the opened > > struct file, is thus discarded after each NFS READDIR operation. > > > > Directory offsets are cached not only by NFS clients, but also by > > user space libraries on those clients. Essentially there is no way > > to invalidate those caches when directory offsets have changed on > > an NFS server after the offset-to-dentry mapping changes. Thus the > > whole application stack depends on unchanging directory offsets. > > > > The solution we've come up with is to make the directory offset for > > each file in a tmpfs filesystem stable for the life of the directory > > entry it represents. > > > > shmem_readdir() and shmem_dir_llseek() now use an xarray to map each > > directory offset (an loff_t integer) to the memory address of a > > struct dentry. > > I believe this patch is responsible for a tmpfs behaviour change when > a directory is modified while being read. The following test program > > #include <dirent.h> > #include <err.h> > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > #include <sys/stat.h> > #include <unistd.h> > > int main(int argc, char *argv[]) { > const char *tmp = "/tmp"; > if (argc >= 2) > tmp = argv[1]; > > char *dir_path; > if (asprintf(&dir_path, "%s/foo.XXXXXX", tmp) < 0) > err(EXIT_FAILURE, "asprintf()"); > > if (!mkdtemp(dir_path)) > err(EXIT_FAILURE, "mkdtemp(%s)", dir_path); > > char *file_path; > if (asprintf(&file_path, "%s/bar", dir_path) < 0) > err(EXIT_FAILURE, "asprintf()"); > > if (creat(file_path, 0644) < 0) > err(EXIT_FAILURE, "creat(%s)", file_path); > > DIR *dir = opendir(dir_path); > if (!dir) > err(EXIT_FAILURE, "opendir(%s)", dir_path); > > struct dirent *de; > while ((de = readdir(dir))) { > printf("readdir(): %s/%s\n", dir_path, de->d_name); > if (de->d_name[0] == '.') > continue; > > if (unlink(file_path) != 0) > err(EXIT_FAILURE, "unlink(%s)", file_path); > > if (creat(file_path, 0644) < 0) > err(EXIT_FAILURE, "creat(%s)", file_path); > } > > return EXIT_SUCCESS; > } > > when run on Linux 6.5, doesn't print the new directory entry: > > tavianator@graphene $ uname -a > Linux graphene 6.5.9-arch2-1 #1 SMP PREEMPT_DYNAMIC Thu, 26 Oct 2023 00:52:20 +0000 x86_64 GNU/Linux > tavianator@graphene $ gcc -Wall foo.c -o foo > tavianator@graphene $ ./foo > readdir(): /tmp/foo.wgmdmm/. > readdir(): /tmp/foo.wgmdmm/.. > readdir(): /tmp/foo.wgmdmm/bar > > But on Linux 6.6, readdir() never stops: > > tavianator@tachyon $ uname -a > Linux tachyon 6.6.1-arch1-1 #1 SMP PREEMPT_DYNAMIC Wed, 08 Nov 2023 16:05:38 +0000 x86_64 GNU/Linux > tavianator@tachyon $ gcc foo.c -o foo > tavianator@tachyon $ ./foo > readdir(): /tmp/foo.XnIRqj/. > readdir(): /tmp/foo.XnIRqj/.. > readdir(): /tmp/foo.XnIRqj/bar > readdir(): /tmp/foo.XnIRqj/bar > readdir(): /tmp/foo.XnIRqj/bar > readdir(): /tmp/foo.XnIRqj/bar > readdir(): /tmp/foo.XnIRqj/bar > readdir(): /tmp/foo.XnIRqj/bar > readdir(): /tmp/foo.XnIRqj/bar > readdir(): /tmp/foo.XnIRqj/bar > ... > foo: creat(/tmp/foo.TTL6Fg/bar): Too many open files > > POSIX says[1] > > > If a file is removed from or added to the directory after the most recent > > call to opendir() or rewinddir(), whether a subsequent call to readdir() > > returns an entry for that file is unspecified. > > so this isn't necessarily a *bug*, but I just wanted to point out the > behaviour change. I'm betting dollars to donuts that the v6.6 tmpfs behavior doesn't match the behavior of other filesystems either. Thanks for the reproducer, I'll look into it. > I only noticed it because it broke one of my tests in > bfs[2] (in a non-default build configuration). > > [1]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/readdir.html > [2]: https://github.com/tavianator/bfs/blob/main/tests/gnu/ignore_readdir_race_notdir.sh
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h index 9029abd29b1c..a5454a80ab30 100644 --- a/include/linux/shmem_fs.h +++ b/include/linux/shmem_fs.h @@ -27,6 +27,7 @@ struct shmem_inode_info { atomic_t stop_eviction; /* hold when working on inode */ struct timespec64 i_crtime; /* file creation time */ unsigned int fsflags; /* flags for FS_IOC_[SG]ETFLAGS */ + struct offset_ctx dir_offsets; /* stable entry offsets */ struct inode vfs_inode; }; diff --git a/mm/shmem.c b/mm/shmem.c index ba3d7db90c9d..c9e6c1dd4fe8 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2355,6 +2355,11 @@ static void shmem_set_inode_flags(struct inode *inode, unsigned int fsflags) #define shmem_initxattrs NULL #endif +static struct offset_ctx *shmem_get_offset_ctx(struct inode *inode) +{ + return &SHMEM_I(inode)->dir_offsets; +} + static struct inode *shmem_get_inode(struct mnt_idmap *idmap, struct super_block *sb, struct inode *dir, umode_t mode, dev_t dev, unsigned long flags) @@ -2410,7 +2415,8 @@ static struct inode *shmem_get_inode(struct mnt_idmap *idmap, struct super_block /* Some things misbehave if size == 0 on a directory */ inode->i_size = 2 * BOGO_DIRENT_SIZE; inode->i_op = &shmem_dir_inode_operations; - inode->i_fop = &simple_dir_operations; + inode->i_fop = &simple_offset_dir_operations; + simple_offset_init(shmem_get_offset_ctx(inode)); break; case S_IFLNK: /* @@ -3082,7 +3088,10 @@ shmem_mknod(struct mnt_idmap *idmap, struct inode *dir, if (error && error != -EOPNOTSUPP) goto out_iput; - error = 0; + error = simple_offset_add(shmem_get_offset_ctx(dir), dentry); + if (error) + goto out_iput; + dir->i_size += BOGO_DIRENT_SIZE; dir->i_ctime = dir->i_mtime = current_time(dir); inode_inc_iversion(dir); @@ -3159,6 +3168,13 @@ static int shmem_link(struct dentry *old_dentry, struct inode *dir, struct dentr goto out; } + ret = simple_offset_add(shmem_get_offset_ctx(dir), dentry); + if (ret) { + if (inode->i_nlink) + shmem_free_inode(inode->i_sb); + goto out; + } + dir->i_size += BOGO_DIRENT_SIZE; inode->i_ctime = dir->i_ctime = dir->i_mtime = current_time(inode); inode_inc_iversion(dir); @@ -3177,6 +3193,8 @@ static int shmem_unlink(struct inode *dir, struct dentry *dentry) if (inode->i_nlink > 1 && !S_ISDIR(inode->i_mode)) shmem_free_inode(inode->i_sb); + simple_offset_remove(shmem_get_offset_ctx(dir), dentry); + dir->i_size -= BOGO_DIRENT_SIZE; inode->i_ctime = dir->i_ctime = dir->i_mtime = current_time(inode); inode_inc_iversion(dir); @@ -3235,24 +3253,29 @@ static int shmem_rename2(struct mnt_idmap *idmap, { struct inode *inode = d_inode(old_dentry); int they_are_dirs = S_ISDIR(inode->i_mode); + int error; if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT)) return -EINVAL; if (flags & RENAME_EXCHANGE) - return simple_rename_exchange(old_dir, old_dentry, new_dir, new_dentry); + return simple_offset_rename_exchange(old_dir, old_dentry, + new_dir, new_dentry); if (!simple_empty(new_dentry)) return -ENOTEMPTY; if (flags & RENAME_WHITEOUT) { - int error; - error = shmem_whiteout(idmap, old_dir, old_dentry); if (error) return error; } + simple_offset_remove(shmem_get_offset_ctx(old_dir), old_dentry); + error = simple_offset_add(shmem_get_offset_ctx(new_dir), old_dentry); + if (error) + return error; + if (d_really_is_positive(new_dentry)) { (void) shmem_unlink(new_dir, new_dentry); if (they_are_dirs) { @@ -3296,19 +3319,23 @@ static int shmem_symlink(struct mnt_idmap *idmap, struct inode *dir, if (error && error != -EOPNOTSUPP) goto out_iput; + error = simple_offset_add(shmem_get_offset_ctx(dir), dentry); + if (error) + goto out_iput; + inode->i_size = len-1; if (len <= SHORT_SYMLINK_LEN) { inode->i_link = kmemdup(symname, len, GFP_KERNEL); if (!inode->i_link) { error = -ENOMEM; - goto out_iput; + goto out_remove_offset; } inode->i_op = &shmem_short_symlink_operations; } else { inode_nohighmem(inode); error = shmem_get_folio(inode, 0, &folio, SGP_WRITE); if (error) - goto out_iput; + goto out_remove_offset; inode->i_mapping->a_ops = &shmem_aops; inode->i_op = &shmem_symlink_inode_operations; memcpy(folio_address(folio), symname, len); @@ -3323,6 +3350,9 @@ static int shmem_symlink(struct mnt_idmap *idmap, struct inode *dir, d_instantiate(dentry, inode); dget(dentry); return 0; + +out_remove_offset: + simple_offset_remove(shmem_get_offset_ctx(dir), dentry); out_iput: iput(inode); return error; @@ -4055,6 +4085,8 @@ static void shmem_destroy_inode(struct inode *inode) { if (S_ISREG(inode->i_mode)) mpol_free_shared_policy(&SHMEM_I(inode)->policy); + if (S_ISDIR(inode->i_mode)) + simple_offset_destroy(shmem_get_offset_ctx(inode)); } static void shmem_init_inode(void *foo) @@ -4135,6 +4167,7 @@ static const struct inode_operations shmem_dir_inode_operations = { .mknod = shmem_mknod, .rename = shmem_rename2, .tmpfile = shmem_tmpfile, + .get_offset_ctx = shmem_get_offset_ctx, #endif #ifdef CONFIG_TMPFS_XATTR .listxattr = shmem_listxattr,