On Mon, 12 Apr 2010 14:29:58 +0300 Avi Kivity <avi@xxxxxxxxxx> wrote: > Pointer chasing defeats OoO. The cpu is limited in the amount of > speculation it can do. Pointer chasing defeats the CPU cache as well. As long as the CPU cache contains, mostly, the page tables for all the data in the cache, applications that try to work good with a cache don't notice too much. Sure, once you start doing pointer chasing cache misses things suck. they do very much so. -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>