Re: [PATCH] mm: vmscan: consistent update to pgrefill

[Chris Down]

Shakeel Butt writes:
> 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>

Acked-by: Chris Down <chris@xxxxxxxxxxxxxx>