commit a7885eb8ad465ec9db99ac5b5e6680f0ca8e11c8
author KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Wed Jan 07 18:08:24 2009 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> Thu Jan 08 08:31:08 2009 -0800
tree 4f3ffaa399fbc16003cc1787228f10543dc9c3ef
parent 2733c06ac864ed40b9dfbbd5270f3f16949bd4a1

memcg: swappiness

Currently, /proc/sys/vm/swappiness can change swappiness ratio for global
reclaim.  However, memcg reclaim doesn't have tuning parameter for itself.

In general, the optimal swappiness depend on workload.  (e.g.  hpc
workload need to low swappiness than the others.)

Then, per cgroup swappiness improve administrator tunability.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>