From: Rik van Riel <riel@redhat.com>
To: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Cc: Christoph Lameter <clameter@sgi.com>,
Aubrey Li <aubreylee@gmail.com>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Robin Getz <rgetz@blackfin.uclinux.org>,
"Henn, erich, Michael" <Michael.Hennerich@analog.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC] Limit the size of the pagecache
Date: Thu, 25 Jan 2007 11:07:07 -0500 [thread overview]
Message-ID: <45B8D5AB.8040803@redhat.com> (raw)
In-Reply-To: <45B844E3.4050203@linux.vnet.ibm.com>
Vaidyanathan Srinivasan wrote:
> Rik van Riel wrote:
>> There are a few databases out there that mmap the whole
>> thing. Sleepycat for one...
>
> That is why my suggestion would be not to touch mmapped pagecache
> pages in the current pagecache limit code. The limit should concern
> only unmapped pagecache pages.
So you want to limit how much data the kernel caches for mysql
or postgresql, but not limit how much of the rpm database is
cached ?!
IMHO your proposal does the exact opposite of what would be
right for my systems :)
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next prev parent reply other threads:[~2007-01-25 16:07 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-24 0:49 Christoph Lameter
2007-01-24 2:53 ` KAMEZAWA Hiroyuki
2007-01-24 3:01 ` Christoph Lameter
2007-01-24 5:47 ` Aubrey Li
2007-01-24 3:00 ` Nick Piggin
2007-01-24 3:14 ` Christoph Lameter
2007-01-24 3:51 ` Aubrey Li
2007-01-24 4:03 ` Nick Piggin
2007-01-26 10:27 ` Andrew Morton
2007-01-24 3:13 ` KAMEZAWA Hiroyuki
2007-01-24 4:30 ` Christoph Lameter
2007-01-24 5:15 ` KAMEZAWA Hiroyuki
2007-01-25 0:32 ` KAMEZAWA Hiroyuki
2007-01-25 2:41 ` Christoph Lameter
2007-01-25 3:12 ` KAMEZAWA Hiroyuki
2007-01-25 4:28 ` Rik van Riel
2007-01-25 5:19 ` KAMEZAWA Hiroyuki
2007-01-25 5:40 ` Rik van Riel
2007-01-25 6:00 ` KAMEZAWA Hiroyuki
2007-01-26 10:29 ` Andrew Morton
2007-01-26 18:01 ` KAMEZAWA Hiroyuki
2007-01-24 7:04 ` Vaidyanathan Srinivasan
2007-01-24 7:55 ` Peter Zijlstra
2007-01-24 12:50 ` Nick Piggin
2007-01-24 12:58 ` Peter Zijlstra
2007-01-24 14:58 ` Christoph Lameter
2007-01-24 20:06 ` Erik Andersen
2007-01-25 2:40 ` Christoph Lameter
2007-01-25 8:07 ` Vaidyanathan Srinivasan
2007-01-24 14:22 ` Aubrey Li
2007-01-24 14:56 ` Peter Zijlstra
2007-01-25 2:27 ` Aubrey Li
2007-01-24 12:33 ` Vaidyanathan Srinivasan
2007-01-24 14:56 ` Christoph Lameter
2007-01-25 4:17 ` Vaidyanathan Srinivasan
2007-01-25 4:45 ` Rik van Riel
2007-01-25 5:49 ` Vaidyanathan Srinivasan
2007-01-25 16:07 ` Rik van Riel [this message]
2007-01-25 17:57 ` Balbir Singh
2007-01-25 6:35 ` Aubrey Li
2007-01-25 6:47 ` Christoph Lameter
2007-01-25 7:49 ` Vaidyanathan Srinivasan
2007-01-25 4:18 ` Rik van Riel
[not found] <7GEEK-4lH-39@gated-at.bofh.it>
[not found] ` <7GLdb-5Uz-13@gated-at.bofh.it>
[not found] ` <7GRix-7fU-1@gated-at.bofh.it>
[not found] ` <7GRLZ-7Uy-29@gated-at.bofh.it>
2007-01-25 14:51 ` Bodo Eggert
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