Messages in this thread | | | Date | Tue, 31 Mar 2009 15:58:10 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [RFC][PATCH] memcg soft limit (yet another new design) v1 |
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On Tue, 31 Mar 2009 12:19:02 +0530 Balbir Singh <balbir@linux.vnet.ibm.com> wrote: > > > > > At some point, memcg soft limit reclaim > > > hits A and reclaims memory from it, allowing B to run without any > > > problems. I am talking about the state at the end of the experiment. > > > > > Considering LRU rotation (ACTIVE->INACTIVE), pages in group B never goes back > > to ACTIVE list and can be the first candidates for swap-out via kswapd. > > > > Hmm....kswapd doesn't work at all ? > > > > (or 1700MB was too much.) > > > > No 1700MB is not too much, since we reclaim from A towards the end > when ld runs. I need to investigate more and look at the watermarks, > may be soft limit reclaim reclaims enough and/or the watermarks are > not very high. I use fake NUMA nodes as well. > When talking about XXMB of swap, +100MB is much ;)
-Kame
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