On Fri, Feb 08 2013, Glauber Costa wrote: > This patchset implements targeted shrinking for memcg when kmem limits are > present. So far, we've been accounting kernel objects but failing allocations > when short of memory. This is because our only option would be to call the > global shrinker, depleting objects from all caches and breaking isolation. > > This patchset builds upon the recent work from David Chinner > (http://oss.sgi.com/archives/xfs/2012-11/msg00643.html) to implement NUMA > aware per-node LRUs. I build heavily on its API, and its presence is implied. > > The main idea is to associate per-memcg lists with each of the LRUs. The main > LRU still provides a single entry point and when adding or removing an element > from the LRU, we use the page information to figure out which memcg it belongs > to and relay it to the right list. > > This patchset is still not perfect, and some uses cases still need to be > dealt with. But I wanted to get this out in the open sooner rather than > later. In particular, I have the following (noncomprehensive) todo list: > > TODO: > * shrink dead memcgs when global pressure kicks in. > * balance global reclaim among memcgs. > * improve testing and reliability (I am still seeing some stalls in some cases) Do you have a git tree with these changes so I can see Dave's numa LRUs plus these changes? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>