On 07/25/2012 07:23 PM, Christoph Lameter wrote: > On Fri, 20 Jul 2012, Glauber Costa wrote: > >>> This is the same btw in SLAB which keeps objects in per cpu caches and >>> keeps empty slab pages on special queues. >>> >>>> This patch marks all memcg caches as dead. kmem_cache_shrink is called >>>> for the ones who are not yet dead - this will force internal cache >>>> reorganization, and then all references to empty pages will be removed. >>> >>> You need to call this also for slab to drain the caches and free the pages >>> on the empty list. >>> >> Doesn't the SLAB have a time-based reaper for that? > > Yes but it will take a couple of minutes to drain the caches. > You might have seen in my last submission that included this in the slab as well. -- 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>