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From: "Paul Menage" <menage@google.com>
To: balbir@linux.vnet.ibm.com
Cc: linux-mm@kvack.org, Hugh Dickins <hugh@veritas.com>,
	Sudhir Kumar <skumar@linux.vnet.ibm.com>,
	YAMAMOTO Takashi <yamamoto@valinux.co.jp>,
	lizf@cn.fujitsu.com, linux-kernel@vger.kernel.org,
	taka@valinux.co.jp, David Rientjes <rientjes@google.com>,
	Pavel Emelianov <xemul@openvz.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [RFC][-mm] Memory controller add mm->owner
Date: Wed, 26 Mar 2008 08:21:59 -0700	[thread overview]
Message-ID: <6599ad830803260821r5c5b56f3pd381659d0866c87b@mail.gmail.com> (raw)
In-Reply-To: <47EA3684.60107@linux.vnet.ibm.com>

On Wed, Mar 26, 2008 at 4:41 AM, Balbir Singh <balbir@linux.vnet.ibm.com> wrote:
>
>  Hmmm.. the 99.9% of the time is just guess work (not measured, could be possibly
>  true). I see and understand your code below. But before I try and implement
>  something like that, I was wondering why zap_threads() does not have that
>  heuristic. That should explain my inhibition.
>
>  Can anyone elaborate on zap_threads further?
>

zap_threads() has to find *all* the other users, whereas in this case
we only have to find one other user.

Paul

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  reply	other threads:[~2008-03-26 15:22 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-24 14:01 Balbir Singh
2008-03-24 15:03 ` Paul Menage
2008-03-24 16:21   ` Balbir Singh
2008-03-24 16:34     ` Paul Menage
2008-03-24 17:33       ` Balbir Singh
2008-03-24 17:46         ` Paul Menage
2008-03-25 11:41           ` Balbir Singh
2008-03-26 10:29             ` Balbir Singh
2008-03-26 11:20               ` Paul Menage
2008-03-26 11:41                 ` Balbir Singh
2008-03-26 15:21                   ` Paul Menage [this message]
2008-03-25  1:26 ` Li Zefan
2008-03-25 15:48   ` Balbir Singh

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