On Mon, 2010-11-22 at 16:11 -0800, Andrew Morton wrote: > > This latest observation we understand may be due to NUMA related > > allocation issues, and we should probably try to use numactl to ask > > for a more even allocation. We have not yet tried this. However, it > is not clear how any issues having to do with that would cause sudden > > eviction of data already *in* the page cache (on whichever node). You don't have anybody messing with /proc/sys/vm/drop_caches, do you? That can cause massive, otherwise unprovoked page cache eviction. -- Dave -- 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/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>