From: Balbir Singh <balbir@in.ibm.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Pavel Emelianov <xemul@openvz.org>,
vatsa@in.ibm.com, dev@openvz.org, sekharan@us.ibm.com,
ckrm-tech@lists.sourceforge.net, haveblue@us.ibm.com,
linux-kernel@vger.kernel.org, pj@sgi.com, matthltc@us.ibm.com,
dipankar@in.ibm.com, rohitseth@google.com, menage@google.com,
linux-mm@kvack.org, Vaidyanathan S <svaidy@in.ibm.com>
Subject: Re: [ckrm-tech] RFC: Memory Controller
Date: Tue, 31 Oct 2006 16:06:38 +0530 [thread overview]
Message-ID: <45472736.8030701@in.ibm.com> (raw)
In-Reply-To: <20061031014243.1153655b.akpm@osdl.org>
Andrew Morton wrote:
> On Tue, 31 Oct 2006 14:49:12 +0530
> Balbir Singh <balbir@in.ibm.com> wrote:
>
>> The idea behind limiting the page cache is this
>>
>> 1. Lets say one container fills up the page cache.
>> 2. The other containers will not be able to allocate memory (even
>> though they are within their limits) without the overhead of having
>> to flush the page cache and freeing up occupied cache. The kernel
>> will have to pageout() the dirty pages in the page cache.
>
> There's a vast difference between clean pagecache and dirty pagecache in this
> context. It is terribly imprecise to use the term "pagecache". And it would be
> a poor implementation which failed to distinguish between clean pagecache and
> dirty pagecache.
>
Yes, I agree, it will be a good idea to distinguish between the two.
--
Balbir Singh,
Linux Technology Center,
IBM Software Labs
--
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next prev parent reply other threads:[~2006-10-31 10:47 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20061030103356.GA16833@in.ibm.com>
[not found] ` <4545D51A.1060808@in.ibm.com>
[not found] ` <4546212B.4010603@openvz.org>
[not found] ` <454638D2.7050306@in.ibm.com>
2006-10-30 18:07 ` Balbir Singh
2006-10-31 8:57 ` Pavel Emelianov
2006-10-31 9:19 ` Balbir Singh
2006-10-31 9:25 ` Pavel Emelianov
2006-10-31 10:10 ` Balbir Singh
2006-10-31 10:19 ` Pavel Emelianov
2006-10-31 9:42 ` Andrew Morton
2006-10-31 10:36 ` Balbir Singh [this message]
[not found] ` <45470DF4.70405@openvz.org>
2006-10-31 10:54 ` Balbir Singh
2006-10-31 11:15 ` Pavel Emelianov
2006-10-31 12:39 ` Balbir Singh
2006-10-31 14:19 ` Pavel Emelianov
2006-10-31 16:54 ` Paul Menage
2006-11-01 6:00 ` David Rientjes
2006-11-01 8:05 ` Pavel Emelianov
2006-11-01 8:35 ` David Rientjes
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