On Fri, 13 Nov 2009, Lee Schermerhorn wrote: > N.B.: incomplete. slab will need to handle node and memory hotplug > that could change the value returned by numa_mem_id() for any given > node. This will be addressed by a subsequent patch, if we decide to > go this route. It needs to be verified that this actually works. Locking is highly depending on numa locality in slab. Can you run this under load with lockdep? See also the lockdep issue that Pekka is dealing with right now. > > 2.6.32-rc5+mmotm-091101 no-patch this-patch > no memoryless nodes [avg of 10]: 12.700 12.856 ~1.2% > cpus all on memless nodes [20]: 261.530 27.700 ~10x speedup This is due to memoryless nodes being able to use per cpu queues in slab now. So far memoryless nodes always use fallback_alloc(). -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
