From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andrea Righi <righi.andrea@gmail.com>,
menage@google.com, kosaki.motohiro@jp.fujitsu.com,
xemul@openvz.org, linux-kernel@vger.kernel.org,
containers@lists.osdl.org
Subject: Re: [RFC PATCH 0/5] memcg: VM overcommit accounting and handling
Date: Tue, 10 Jun 2008 10:43:23 +0530 [thread overview]
Message-ID: <484E0D73.6010609@linux.vnet.ibm.com> (raw)
In-Reply-To: <20080610091439.04061da9.kamezawa.hiroyu@jp.fujitsu.com>
KAMEZAWA Hiroyuki wrote:
> On Tue, 10 Jun 2008 01:32:58 +0200
> Andrea Righi <righi.andrea@gmail.com> wrote:
>
>> Provide distinct cgroup VM overcommit accounting and handling using the memory
>> resource controller.
>>
>
> Could you explain the benefits of this even when we have memrlimit controller ?
> (If unsure, see 2.6.26-rc5-mm1 and search memrlimit controller.)
>
> And this kind of virtual-address-handling things should be implemented on
> memrlimit controller (means not on memory-resource-controller.).
> It seems this patch doesn't need to handle page_group.
>
> Considering hierarchy, putting several kinds of features on one controller is
> not good, I think. Balbir, how do you think ?
>
I would tend to agree. With the memrlimit controller, can't we do this in user
space now? Figure out the overcommit value and based on that setup the memrlimit?
--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
next prev parent reply other threads:[~2008-06-10 5:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-09 23:32 [RFC PATCH 0/5] memcg: VM overcommit accounting and handling Andrea Righi
2008-06-10 0:14 ` KAMEZAWA Hiroyuki
2008-06-10 5:13 ` Balbir Singh [this message]
2008-06-10 7:52 ` Pavel Emelyanov
2008-06-10 8:30 ` Andrea Righi
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