> =================================================================== > >From 52358cbccdfe94e0381974cd6e937bcc6b1c608b Mon Sep 17 00:00:00 2001 > From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> > Date: Fri, 2 Apr 2010 17:13:48 +0900 > Subject: [PATCH] Revert "vmscan: get_scan_ratio() cleanup" > > Shaohua Li reported his tmpfs streaming I/O test can lead to make oom. > The test uses a 6G tmpfs in a system with 3G memory. In the tmpfs, > there are 6 copies of kernel source and the test does kbuild for each > copy. His investigation shows the test has a lot of rotated anon > pages and quite few file pages, so get_scan_ratio calculates percent[0] > (i.e. scanning percent for anon) to be zero. Actually the percent[0] > shoule be a big value, but our calculation round it to zero. should small :) Acked-by: Wu Fengguang <fengguang.wu@xxxxxxxxx> Thanks, Fengguang -- 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>