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[0/3] mm/slub: some minor optimization and cleanup

Message ID 20240117-slab-misc-v1-0-fd1c49ccbe70@bytedance.com (mailing list archive)
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Series mm/slub: some minor optimization and cleanup | expand

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Chengming Zhou Jan. 17, 2024, 11:45 a.m. UTC 
Hi,

This series include a minor optimization of cpu partial slab fastpath,
which directly load freelist from cpu partial slab in the likely case.

It has small performance improvement in testing:
perf bench sched messaging -g 5 -t -l 100000

            mm-stable   slub-optimize
Total time      7.473    7.209

The other two patches are cleanups, which are included for convenience.

Thanks for review and comment!

To: Christoph Lameter <cl@linux.com>
To: Pekka Enberg <penberg@kernel.org>
To: David Rientjes <rientjes@google.com>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
To: Andrew Morton <akpm@linux-foundation.org>
To: Vlastimil Babka <vbabka@suse.cz>
To: Roman Gushchin <roman.gushchin@linux.dev>
To: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>

---
Chengming Zhou (3):
      mm/slub: directly load freelist from cpu partial slab in the likely case
      mm/slub: remove full list manipulation for non-debug slab
      mm/slub: remove unused parameter in next_freelist_entry()

 mm/slub.c | 31 +++++++++++++------------------
 1 file changed, 13 insertions(+), 18 deletions(-)
---
base-commit: ab27740f76654ed58dd32ac0ba0031c18a6dea3b
change-id: 20240117-slab-misc-5a5f37a51257

Best regards,