Daisuke Nishimura wrote: > 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? > > > 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. We had this earlier, but dropped it later due to issues related to swap readahead and assigning the pages to the correct cgroup. -- Warm Regards, Balbir Singh Linux Technology Center IBM, ISTL _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
