On Thu, Dec 3, 2020 at 9:20 PM Peter Zijlstra <pet...@infradead.org> wrote: > > On Wed, Dec 02, 2020 at 11:28:28AM -0800, Andi Kleen wrote: > > > + 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. > > With cgroup-v2 that's all the same, no?
Right, but unfortunately it seems still cgroup v1 is used widely. Thanks, Namhyung
