On Thu, Sep 14, 2023 at 12:49:37AM +0800, Vern Hao wrote: > From: Xin Hao <vernhao@xxxxxxxxxxx> > > At present, we support per-memcg reclaim strategy, however we do not > know the number of transparent huge pages being reclaimed, as we know > the transparent huge pages need to be splited before reclaim them, and > they will bring some performance bottleneck effect. for example, when > two memcg (A & B) are doing reclaim for anonymous pages at same time, > and 'A' memcg is reclaiming a large number of transparent huge pages, we > can better analyze that the performance bottleneck will be caused by 'A' > memcg. therefore, in order to better analyze such problems, there add > THP swap out info for per-memcg. > > Suggested-by: Johannes Weiner <hannes@xxxxxxxxxxx> > Signed-off-by: Xin Hao <vernhao@xxxxxxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
