On Sun, Dec 01, 2013 at 01:10:22PM +0100, Ingo Molnar wrote: > But more importantly, since these are all NUMA systems, would it make > sense to create per node hashes on NUMA? Each futex would be enqueued > into the hash belonging to its own page's node.
Can't do that; we hash on vaddr, the actual page can move between nodes while a futex is queued. This would mean that the waiting futex is queued on another node than the waker is looking. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
