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Date: Mon, 7 Apr 2008 21:12:37 +0900 From: "KOSAKI Motohiro" <kosaki.motohiro@...fujitsu.com> To: "Balbir Singh" <balbir@...ux.vnet.ibm.com> Cc: andi@...stfloor.org, "Andrew Morton" <akpm@...ux-foundation.org>, "YAMAMOTO Takashi" <yamamoto@...inux.co.jp>, "Paul Menage" <menage@...gle.com>, linux-kernel@...r.kernel.org, linux-mm@...ck.org, "Pavel Emelianov" <xemul@...nvz.org>, hugh@...itas.com, "KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com> Subject: Re: [-mm] Disable the memory controller by default Hi > diff -puN Documentation/kernel-parameters.txt~memory-controller-default-option-off Documentation/kernel-parameters.txt > --- linux-2.6.25-rc8/Documentation/kernel-parameters.txt~memory-controller-default-option-off 2008-04-07 16:38:25.000000000 +0530 > +++ linux-2.6.25-rc8-balbir/Documentation/kernel-parameters.txt 2008-04-07 17:20:08.000000000 +0530 > @@ -381,9 +381,10 @@ and is between 256 and 4096 characters. > ccw_timeout_log [S390] > See Documentation/s390/CommonIO for details. > > - cgroup_disable= [KNL] Disable a particular controller > - Format: {name of the controller(s) to disable} > + cgroup_toggle= [KNL] Toggle (enable/disable) a particular controller > + Format: {name of the controller(s) to enable/disable} > {Currently supported controllers - "memory"} > + {The memory controller is disabled by default} > > checkreqprot [SELINUX] Set initial checkreqprot flag value. > Format: { "0" | "1" } Hmm.. toggle parameter seems no good idea. because if change default value in the future, boot parmeter becomes an opposite meaning. thus, we can't change default value even if we will be able to get enough performance improvement in the future. Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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