On Thu, Apr 14, 2011 at 03:40:58PM +0200, Alfredo Buttari wrote: > Hi all, > I have a simple question regarding the functioning of the numactl > command with the -i flag. > > Does it mean that, if I have, e.g., multiple allocations in my > executable then these allocations are interleaved on the numa nodes in > a round-robin fashion? > > or does it mean that if I have, e.g., a single big allocation in my > executable the corresponding memory area will be split into multiple, > non-contiguous regions which are then interleaved on the numa nodes in > rr fashion? > > or both of the above? It depends on whether you apply it to a process or to a shm mapping. For a process it would the first, for a shm mapping the later. Also for a process this happens in first touch fault-order. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-numa" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
