On Thu, Feb 27, 2014 at 02:34:55PM -0800, Dave Hansen wrote: > Kirill's git test suite runs did show that it _can_ hurt in some cases. And see last use-case for how much it can hurt. :) It shouldn't differs much for the same *number* of pages between [u]archs unless setup of the pte is significantly more expensive or page fault is faster. But of course, I can move FAULT_AROUND_PAGES to arch/x86/ and let architecture mantainers to decide if they want the feature. ;) -- Kirill A. Shutemov -- 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>