On 08/02/2013 12:06 PM, Andrea Arcangeli wrote:
The min wmark should be satisfied with just 1 hugepage. And the other wmarks should be adjusted accordingly. We need to succeed the low wmark check if there's some significant amount of 0 order pages, but we don't need plenty of high order pages because the PF_MEMALLOC paths don't require those. Creating a ton of high order pages that cannot be allocated by the high order allocation paths (no PF_MEMALLOC) is quite wasteful because they can be splitted in lower order pages before anybody has a chance to allocate them. Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Acked-by: Rik van Riel <riel@xxxxxxxxxx> -- All rights reversed -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>