On Wed, Oct 06, 2010 at 11:37:12AM -0500, Christoph Lameter wrote: > On Wed, 6 Oct 2010, Andi Kleen wrote: > > > > True. The shared caches can compensate for that. Without this I got > > > regression because of too many atomic operations during draining and > > > refilling. > > > > Could you just do it by smaller units? (e.g. cores on SMT systems) > > The shared caches are not per node but per sharing domain (l3). That's the same at least on Intel servers. > > So it would depend on that total number of caches in the system? > > Yes. Also the expiration is triggerable from user space. You can set up a > cron job that triggers cache expiration every minute or so. > movement also. That doesn't seem like a good way to do this to me. Such things should work without special cron jobs. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- 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>