Christoph Lameter wrote: > On Tue, 18 Sep 2007, Balbir Singh wrote: > >> I've wondered the same thing and asked the question. Pavel wrote >> back to me saying >> >> "The pages that are full of objects are not linked in any list >> in kmem_cache so we just cannot find them." > > That is true for any types of slab cache and not restricted to kmalloc > slabs. SLUB can be switched into a mode where it provides these lists > (again at a performance penalty). > > But I thought we generate the counters at alloc and free time? So why do > we need to traverse the object lists? When we make echo 0 > /sys/slab/xxx/cache_notify we want all the objects to be unaccounted back immediately. Even __free_slab() won't catch this because the SLAB_NOTIFY flag will be turned off for this cache. So we have to walk all the objects and unaccount them. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
