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.
