On Tue, Mar 17, 2020 at 02:41:49PM +0900, js1304@xxxxxxxxx wrote: > From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> > > Current implementation of LRU management for anonymous page has some > problems. Most important one is that it doesn't protect the workingset, > that is, pages on the active LRU list. Although, this problem will be > fixed in the following patchset, the preparation is required and > this patch does it. > > What following patchset does is to restore workingset protection. In this > case, newly created or swap-in pages are started their lifetime on the > inactive list. If inactive list is too small, there is not enough chance > to be referenced and the page cannot become the workingset. > > In order to provide enough chance to the newly anonymous pages, this patch > makes active/inactive LRU ratio as 1:1. > > Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
