Messages in this thread | | | Date | Wed, 2 Dec 2020 11:28:28 -0800 | From | Andi Kleen <> | Subject | Re: [RFC 1/2] perf core: Add PERF_COUNT_SW_CGROUP_SWITCHES event |
| |
> + prev_cgrp = task_css_check(prev, perf_event_cgrp_id, 1)->cgroup; > + next_cgrp = task_css_check(next, perf_event_cgrp_id, 1)->cgroup; > + > + if (prev_cgrp != next_cgrp) > + perf_sw_event_sched(PERF_COUNT_SW_CGROUP_SWITCHES, 1, 0);
Seems to be the perf cgroup only, not all cgroups. That's a big difference and needs to be documented properly.
Probably would make sense to have two events for both, one for all cgroups and one for perf only.
-Andi
| |