hi, > Daisuke Nishimura wrote: > > Hi, Yamamoto-san. > > > > I'm reviewing and testing your patch now. > > > > In building kernel infinitely(in a cgroup of > memory.limit=64M and swap.limit=128M, with swappiness=100), > almost all of the swap (1GB) is consumed as swap cache > after a day or so. > As a result, processes are occasionally OOM-killed even when > the swap.usage of the group doesn't exceed the limit. > > I don't know why the swap cache uses up swap space. > I will test whether a similar issue happens without your patch. > Do you have any thoughts? my patch tends to yield more swap cache because it makes try_to_unmap fail and shrink_page_list leaves swap cache in that case. i'm not sure how it causes 1GB swap cache, tho. YAMAMOTO Takashi > > BTW, I think that it would be better, in the sence of > isolating memory resource, if there is a framework > to limit the usage of swap cache. > > > Thanks, > Daisuke Nishimura. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
