On Wed, Jan 13, 2021 at 10:43 AM Roman Gushchin <[email protected]> wrote: > > On Tue, Jan 12, 2021 at 04:18:44PM -0800, Shakeel Butt wrote: > > On Tue, Jan 12, 2021 at 4:12 PM Arjun Roy <[email protected]> wrote: > > > > > > On Tue, Jan 12, 2021 at 3:48 PM Roman Gushchin <[email protected]> wrote: > > > > > > [snip] > > > > Historically we have a corresponding vmstat counter to each charged > > > > page. > > > > It helps with finding accounting/stastistics issues: we can check that > > > > memory.current ~= anon + file + sock + slab + percpu + stack. > > > > It would be nice to preserve such ability. > > > > > > > > > > Perhaps one option would be to have it count as a file page, or have a > > > new category. > > > > > > > Oh these are actually already accounted for in NR_FILE_MAPPED. > > Well, it's confusing. Can't we fix this by looking at the new page memcg flag?
Yes we can. I am inclined more towards just using NR_FILE_PAGES (as Arjun suggested) instead of adding a new metric.
