(2013/04/01 16:34), Glauber Costa wrote: > There are scenarios in which we would like our programs to run faster. > It is a hassle, when they are contained in memcg, that some of its > allocations will fail and start triggering reclaim. This is not good > for the program, that will now be slower. > > This patch implements boost mode for memcg. It exposes a u64 file > "memcg boost". Every time you write anything to it, it will reduce the > counters by ~20 %. Note that we don't want to actually reclaim pages, > which would defeat the very goal of boost mode. We just make the > res_counters able to accomodate more. > > This file is also available in the root cgroup. But with a slightly > different effect. Writing to it will make more memory physically > available so our programs can profit. > > Please ack and apply. > Nack. > Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx> Please update limit temporary. If you need call-shrink-explicitly-by-user, I think you can add it. Thanks, -Kame -- 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>