Messages in this thread | | | Date | Wed, 4 Oct 2023 14:27:46 -0700 | From | Namhyung Kim <> | Subject | Re: [PATCH] perf/core: Introduce cpuctx->cgrp_ctx_list |
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On Wed, Oct 04, 2023 at 05:42:49PM +0200, Ingo Molnar wrote: > > * Namhyung Kim <namhyung@kernel.org> wrote: > > > Maybe I can add an option to perf bench sched to place > > senders and receivers in different cgroups. > > That would certainly be useful to measure cgroups overhead.
Sent out the change:
https://lore.kernel.org/all/20231004204741.985422-1-namhyung@kernel.org/
With that, the numbers became stable. :)
Before)
$ taskset -c 0 ./perf bench sched pipe -l 10000 -G AAA,BBB # Running 'sched/pipe' benchmark: # Executed 10000 pipe operations between two processes Total time: 0.901 [sec] 90.128700 usecs/op 11095 ops/sec
After)
$ taskset -c 0 ./perf bench sched pipe -l 10000 -G AAA,BBB # Running 'sched/pipe' benchmark: # Executed 10000 pipe operations between two processes Total time: 0.065 [sec] 6.560100 usecs/op 152436 ops/sec
Thanks, Namhyung
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