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