On Fri, Jul 10, 2020 at 7:32 PM Roman Gushchin <guro@xxxxxx> wrote: > > On Fri, Jul 10, 2020 at 06:14:59PM -0700, Shakeel Butt wrote: > > The vmstat pgrefill is useful together with pgscan and pgsteal stats to > > measure the reclaim efficiency. However vmstat's pgrefill is not updated > > consistently at system level. It gets updated for both global and memcg > > reclaim however pgscan and pgsteal are updated for only global reclaim. > > So, update pgrefill only for global reclaim. If someone is interested in > > the stats representing both system level as well as memcg level reclaim, > > then consult the root memcg's memory.stat instead of /proc/vmstat. > > > > Signed-off-by: Shakeel Butt <shakeelb@xxxxxxxxxx> > > So you went into the opposite direction from the "previous version" > ( https://lkml.org/lkml/2020/5/7/1464 ) ? > Yes because we already had those stats in the root memcg and exposing root memcg's memory.stat resolved the issue. > Acked-by: Roman Gushchin <guro@xxxxxx> Thanks a lot.
