On Mon, Jun 14, 2021 at 06:17:21PM -0700, Namhyung Kim wrote:> Current limitations are:> * it doesn't support cgroup hierarchyThat seems unfortunate; there's no bpf helper to iterate cgrouphierarchy?> * there's no reliable way to trigger running the BPF programYou can't attach to the PERF_COUNT_SW_CGROUP_SWITCHES event?