Re: [PATCH] mm: skip current when memcg reclaim

[Zhaoyang Huang]

On Sat, Oct 16, 2021 at 11:06 AM Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:
>
> On Fri, Oct 15, 2021 at 01:00:35PM -0700, Andrew Morton wrote:
> > On Fri, 15 Oct 2021 14:15:29 +0800 Huangzhaoyang <huangzhaoyang@xxxxxxxxx> wrote:
> >
> > > From: Zhaoyang Huang <zhaoyang.huang@xxxxxxxxxx>
> > >
> > > Sibling thread of the same process could refault the reclaimed pages
> > > in the same time, which would be typical in None global reclaim and
> > > introduce thrashing.
> >
> > "None" -> "node", I assume?
>
> I think that's "non-global", ie memcg based.
It is exactly what I mean. memcg based reclaim could be worse for page
thrashing.