On Fri, 10 May 2019 10:49:34 -0700 Dan Schatzberg <dschatzb...@fb.com> wrote:
> Pressure metrics are already recorded and exposed in procfs for the > entire system, but any tool which monitors cgroup pressure has to > special case the root cgroup to read from procfs. This patch exposes > the already recorded pressure metrics on the root cgroup. > Documentation/admin-guide/cgroup-v2.rst says "A read-only nested-key file which exists on non-root cgroups". Documentation/accounting/psi.txt could do woth some clarification as well.
