| Message ID | 20250103093647.575919-1-sshegde@linux.ibm.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 24e0e610400aa2c765ee87b1b3c1401732b20fc5 |
| Headers | show |
| Series | ftrace: print lazy preemption model | expand |
On Fri, 3 Jan 2025 15:06:47 +0530 Shrikanth Hegde <sshegde@linux.ibm.com> wrote: > Print lazy preemption model in ftrace header when latency-format=1. > > cat /sys/kernel/debug/sched/preempt > none voluntary full (lazy) > > Without patch: > latency: 0 us, #232946/232946, CPU#40 | (M:unknown VP:0, KP:0, SP:0 HP:0 #P:80) > With Patch: > latency: 0 us, #1897938/25566788, CPU#16 | (M:lazy VP:0, KP:0, SP:0 HP:0 #P:80) > Looks good to me. Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Thanks, > Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com> > --- > kernel/trace/trace.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c > index f8aebcb01e62..b6e40e8791fa 100644 > --- a/kernel/trace/trace.c > +++ b/kernel/trace/trace.c > @@ -4122,6 +4122,7 @@ print_trace_header(struct seq_file *m, struct trace_iterator *iter) > preempt_model_none() ? "server" : > preempt_model_voluntary() ? "desktop" : > preempt_model_full() ? "preempt" : > + preempt_model_lazy() ? "lazy" : > preempt_model_rt() ? "preempt_rt" : > "unknown", > /* These are reserved for later use */ > -- > 2.39.3 >
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index f8aebcb01e62..b6e40e8791fa 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4122,6 +4122,7 @@ print_trace_header(struct seq_file *m, struct trace_iterator *iter) preempt_model_none() ? "server" : preempt_model_voluntary() ? "desktop" : preempt_model_full() ? "preempt" : + preempt_model_lazy() ? "lazy" : preempt_model_rt() ? "preempt_rt" : "unknown", /* These are reserved for later use */
Print lazy preemption model in ftrace header when latency-format=1. cat /sys/kernel/debug/sched/preempt none voluntary full (lazy) Without patch: latency: 0 us, #232946/232946, CPU#40 | (M:unknown VP:0, KP:0, SP:0 HP:0 #P:80) With Patch: latency: 0 us, #1897938/25566788, CPU#16 | (M:lazy VP:0, KP:0, SP:0 HP:0 #P:80) Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com> --- kernel/trace/trace.c | 1 + 1 file changed, 1 insertion(+)