On Tue, 15 Apr 2014, Vladimir Davydov wrote: > > There is already logic in both slub and slab that does that on cache > > close. > > Yeah, but here the question is when we should close caches left after memcg > offline. Obviously we should do it after all objects of such a cache have > gone, but when exactly? Do it immediately after the last kfree (have to count > objects per cache then AFAIU) or may be check periodically (or on vmpressure) > that the cache is empty by issuing kmem_cache_shrink and looking if > memcg_params::nr_pages = 0?
Guess check once in a while if you have no other way to determine this. A hook in kfree() would impact all users. _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
