On Wed 31-10-18 07:40:14, Dave Hansen wrote: > On 10/31/18 7:24 AM, Michal Hocko wrote: > > I am also wondering whether unevictable pages culling can be > > really visible when we do the anon LRU reclaim because the swap path is > > quite expensinve on its own. > > Didn't we create the unevictable lists in the first place because > scanning alone was observed to be so expensive in some scenarios? Yes, that is the case. I might just misunderstood the code I thought those pages were already on the LRU when unevictable flag was set and we would only move these pages to the unevictable list lazy during the reclaim. If the flag is set at the time when the page is added to the LRU then it should get to the proper LRU list right away. But then I do not understand the test results from previous run at all. -- Michal Hocko SUSE Labs _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
