From: Larry Woodman <lwoodman@xxxxxxxxxx> Date: Thu, 20 May 2010 07:20:42 -0400 > Increasing the dirty_ratio to 40% will regain the performance loss > seen in several benchmarks. Whats everyone think about this??? I've been making this change via sysctl on every single system I have, and have been doing so for quite some time. When doing a lot of GIT operations to a non-SSD disk the kernel simply can't submit the writes early enough to prevent everything getting backlogged, and then processes pile up being forced to sleep on I/O for several seconds at a time. I therefore totally support making this the default, but I know some people will be against it :-) Acked-by: David S. Miller <davem@xxxxxxxxxxxxx> -- 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>