On Mon 05-12-22 08:32:41, Shakeel Butt wrote: > On Mon, Dec 5, 2022 at 3:49 AM <lirongqing@xxxxxxxxx> wrote: > > > > From: Li RongQing <lirongqing@xxxxxxxxx> > > > > when resize memory cgroup, avoid to free memory cgroup page > > one by one, and try to free needed number pages once > > > > It's not really one by one but SWAP_CLUSTER_MAX. Also can you share > some experiment results on how much this patch is improving setting > limits? Besides a clear performance gain you should also think about a potential over reclaim when the limit is reduced by a lot (there might be parallel reclaimers competing with the limit resize). -- Michal Hocko SUSE Labs
