On Sat, Jul 31, 2010 at 8:59 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > On Sat, Jul 31, 2010 at 08:55:57PM +0300, Pekka Enberg wrote: >> Do you have CONFIG_SLUB enabled? It does high order allocations by >> default for performance reasons. > > Yes. This is a kernel using slub. You can pass "slub_debug=o" as a kernel parameter to disable higher order allocations if you want to test things. The per-cache default order is calculated in calculate_order() of mm/slub.c. How many CPUs do you have on your system? -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>