On Mon 07-03-22 14:53:40, Wei Xu wrote: [...] > The choice between anon and file pages is not only a hardware > property, but also a matter of policy decisions. It is useful to allow > the userspace policy daemon the flexibility to choose anon pages or > file pages or both to reclaim from, for the exact reasons that you > have described. This is important for the use cases in Google (where > anon pages are the primary focus of proactive reclaim). > > Maybe instead of the swappiness factor, we can replace this parameter > with a page type mask to more explicitly select which types of pages > to reclaim. I am concerned this could lead to even more problems. Where do you draw the line? Do you want to control slab reclaim or even shrinkers based reclaim? -- Michal Hocko SUSE Labs
