On Thu, Jun 24, 2021 at 7:01 AM Michal Koutný <mkoutny@xxxxxxxx> wrote: > > Hello Shakeel. > > On Tue, Jun 15, 2021 at 10:44:35AM -0700, Shakeel Butt <shakeelb@xxxxxxxxxx> wrote: > > At the moment memcg stats are read in four contexts: > > > > 1. memcg stat user interfaces > > 2. dirty throttling > > 3. page fault > > 4. memory reclaim > > Sorry for being dense or ignorant -- what do you refer to with the point > no. 3 (memcg stats reader during page fault)? > Yes, specifically workingset_refault() which reads lruvec stats directly through lruvec_page_state and indirectly through lru_note_cost_page.
