On Wed, 5 Nov 2008 10:31:23 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote: > > > > Yes? Someone help me out here. I don't yet have my head around the > > overlaps and incompatibilities here. Perhaps the containers guys will > > wake up and put their thinking caps on? > > > > > > > > What happens if cpuset A uses nodes 0,1,2,3,4,5,6,7,8,9 and cpuset B > > uses nodes 0,1? Can activity in cpuset A cause ooms in cpuset B? > > > For help this, per-node-dirty-ratio-throttoling is necessary. > > Shouldn't we just have a new parameter as /proc/sys/vm/dirty_ratio_per_node. I guess that would work. But it is a general solution and will be less efficient for the particular setups which are triggering this problem. > /proc/sys/vm/dirty_ratio works for throttling the whole system dirty pages. > /proc/sys/vm/dirty_ratio_per_node works for throttling dirty pages in a node. > > Implementation will not be difficult and works enough against OOM. Yup. Just track per-node dirtiness and walk the LRU when it is over threshold. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
