Messages in this thread | | | Date | Fri, 14 Jul 2023 10:06:31 +0300 | Subject | Re: [PATCH] perf: add new option '--workload-attr' to set workload sched_policy/priority/mask | From | Adrian Hunter <> |
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On 13/07/23 11:58, Changbin Du wrote: > To get consistent benchmarking results, sometimes we need to set the > sched_policy/priority/mask of the workload to reduce system noise. > > For example, CPU binding is required on big.little system. > > $ perf stat -r 10 -- taskset -c 0 ls > > Nevertheless, the 'taskset' is also counted here. > > To get away of the middleman, this adds a new option '--workload-attr' to > do the same jobs for stat and record commands. > > $ sudo perf stat --workload-attr fifo,40,0x1 -- ls > > Above will make 'ls' run on CPU #0 with fifo scheduler and realtime > priority is 40.
Aren't there ways to set up a process then start perf using -p <pid> then let the process continue.
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