From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 23 Oct 2008 21:32:28 -0700 From: Randy Dunlap Subject: Re: [RFC][PATCH 9/11] memcg : mem+swap controlelr kconfig Message-Id: <20081023213228.bf7cc325.randy.dunlap@oracle.com> In-Reply-To: <20081023181220.80dc24c5.kamezawa.hiroyu@jp.fujitsu.com> References: <20081023175800.73afc957.kamezawa.hiroyu@jp.fujitsu.com> <20081023181220.80dc24c5.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: KAMEZAWA Hiroyuki Cc: "linux-mm@kvack.org" , "balbir@linux.vnet.ibm.com" , "nishimura@mxp.nes.nec.co.jp" , "xemul@openvz.org" , "menage@google.com" List-ID: On Thu, 23 Oct 2008 18:12:20 +0900 KAMEZAWA Hiroyuki wrote: > Documentation/kernel-parameters.txt | 3 +++ > include/linux/memcontrol.h | 3 +++ > init/Kconfig | 16 ++++++++++++++++ > mm/memcontrol.c | 17 +++++++++++++++++ > 4 files changed, 39 insertions(+) > > Index: mmotm-2.6.27+/init/Kconfig > =================================================================== > --- mmotm-2.6.27+.orig/init/Kconfig > +++ mmotm-2.6.27+/init/Kconfig > @@ -613,6 +613,22 @@ config KALLSYMS_EXTRA_PASS > reported. KALLSYMS_EXTRA_PASS is only a temporary workaround while > you wait for kallsyms to be fixed. > > +config CGROUP_MEM_RES_CTLR_SWAP > + bool "Memory Resource Controller Swap Extension(EXPERIMENTAL)" > + depends on CGROUP_MEM_RES_CTLR && SWAP && EXPERIMENTAL > + help > + Add swap management feature to memory resource controller. When you > + enable this, you can limit mem+swap usage per cgroup. In other words, > + when you disable this, memory resource controller have no cares to probably: has > + usage of swap...a process can exhaust the all swap. This extension all of the swap. > + is useful when you want to avoid exhausion of swap but this itself exhaustion > + adds more overheads and consumes memory for remembering information. > + Especially if you use 32bit system or small memory system, > + please be careful to enable this. When memory resource controller probably: about enabling this. > + is disabled by boot option, this will be automatiaclly disabled and > + there will be no overhead from this. Even when you set this config=y, > + if boot option "noswapaccount" is set, swap will not be accounted. > + > > config HOTPLUG > bool "Support for hot-pluggable devices" if EMBEDDED --- ~Randy -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org