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Message-ID: <6599ad830803260821r5c5b56f3pd381659d0866c87b@mail.gmail.com>
Date: Wed, 26 Mar 2008 08:21:59 -0700
From: "Paul Menage" <menage@google.com>
To: balbir@linux.vnet.ibm.com
Subject: Re: [RFC][-mm] Memory controller add mm->owner
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,
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       "David Rientjes" <rientjes@google.com>,
       "Pavel Emelianov" <xemul@openvz.org>,
       "Andrew Morton" <akpm@linux-foundation.org>,
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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