On Wed, 20 Jul 2011, Eric Dumazet wrote: > > Slab's kmem_cache is configured with an array of NR_CPUS which is the > > maximum nr of cpus supported. Some distros support 4096 cpus in order to > > accomodate SGI machines. That array then will have the size of 4096 * 8 = > > 32k > > We currently support a dynamic schem for the possible nodes : > > cache_cache.buffer_size = offsetof(struct kmem_cache, nodelists) + > nr_node_ids * sizeof(struct kmem_list3 *); > > We could have a similar trick to make the real size both depends on > nr_node_ids and nr_cpu_ids. > > (struct kmem_cache)->array would become a pointer. We should be making it a per cpu pointer like slub then. I looked at what it would take to do so a couple of month ago but it was quite invasive. The other solution is to use slub instead. -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>