On Wed, Nov 6, 2013 at 1:42 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote: > Perhaps I'm missing something here, but what is MCS lock and what is the > value? Its a kind of queued lock where each waiter spins on a a separate memory word, instead of having them all spin on the lock's memory word. This helps with scalability when many waiters queue on the same lock. -- Michel "Walken" Lespinasse A program is never fully debugged until the last user dies. -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>