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From: Peter Zijlstra <peterz@infradead.org>
To: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Cc: balbir@linux.vnet.ibm.com,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Linux Containers <containers@lists.osdl.org>,
	linux-mm <linux-mm@kvack.org>, Balbir Singh <balbir@in.ibm.com>,
	Pavel Emelianov <xemul@sw.ru>, Paul Menage <menage@google.com>,
	Kirill Korotaev <dev@sw.ru>,
	devel@openvz.org, Andrew Morton <akpm@linux-foundation.org>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Herbert Poetzl <herbert@13thfloor.at>,
	Roy Huang <royhuang9@gmail.com>, Aubrey Li <aubreylee@gmail.com>,
	riel@redhat
Subject: Re: [RFC] mm-controller
Date: Mon, 25 Jun 2007 18:22:41 +0200	[thread overview]
Message-ID: <1182788561.6174.70.camel@lappy> (raw)
In-Reply-To: <467BFA47.4050802@linux.vnet.ibm.com>

On Fri, 2007-06-22 at 22:05 +0530, Vaidyanathan Srinivasan wrote:

> Merging both limits will eliminate the issue, however we would need
> individual limits for pagecache and RSS for better control.  There are
> use cases for pagecache_limit alone without RSS_limit like the case of
> database application using direct IO, backup applications and
> streaming applications that does not make good use of pagecache.

I'm aware that some people want this. However we rejected adding a
pagecache limit to the kernel proper on grounds that reclaim should do a
better job.

And now we're sneaking it in the backdoor.

If we're going to do this, get it in the kernel proper first.

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  reply	other threads:[~2007-06-25 16:22 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-21  9:32 Peter Zijlstra
2007-06-21 11:03 ` Balbir Singh
2007-06-21 13:50   ` Peter Zijlstra
2007-06-21 17:31     ` Balbir Singh
2007-06-22  2:21       ` Pavel Emelianov
2007-06-22 16:35     ` Vaidyanathan Srinivasan
2007-06-25 16:22       ` Peter Zijlstra [this message]
2007-06-25 18:02         ` Vaidyanathan Srinivasan
2007-06-26  3:01         ` Balbir Singh
2007-06-25 17:35       ` Paul Menage
2007-06-25 17:36         ` Paul Menage
2007-06-25 18:22           ` Vaidyanathan Srinivasan

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