From: William Lee Irwin III <wli@holomorphy.com>
To: Takao Indoh <indou.takao@soft.fujitsu.com>
Cc: Mike Fedyk <mfedyk@matchmail.com>, linux-kernel@vger.kernel.org
Subject: Re: cache limit
Date: Sun, 24 Aug 2003 21:11:17 -0700 [thread overview]
Message-ID: <20030825041117.GN4306@holomorphy.com> (raw)
In-Reply-To: <AC36AB3038685indou.takao@soft.fujitsu.com>
On Thu, Aug 21, 2003 at 09:49:45AM +0900, Takao Indoh wrote:
>>> Actually, in the system I constructed(RedHat AdvancedServer2.1, kernel
>>> 2.4.9based), the problem occurred due to pagecache. The system's maximum
>>> response time had to be less than 4 seconds, but owing to the pagecache,
>>> response time get uneven, and maximum time became 10 seconds.
On Thu, 21 Aug 2003 16:47:09 -0700, Mike Fedyk wrote:
>> Please try the 2.4.18 based redhat kernel, or the 2.4-aa kernel.
On Mon, Aug 25, 2003 at 11:45:58AM +0900, Takao Indoh wrote:
> I need a tuning parameter which can control pagecache
> like /proc/sys/vm/pagecache, which RedHat Linux has.
> The latest 2.4 or 2.5 standard kernel does not have such a parameter.
> 2.4.18 kernel or 2.4-aa kernel has a alternative method?
This is moderately misguided; essentially the only way userspace can
utilize RAM at all is via the pagecache. It's not useful to limit this;
you probably need inode-highmem or some such nonsense.
-- wli
next prev parent reply other threads:[~2003-08-25 4:10 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-19 4:39 cache limit Anthony R.
2003-08-19 4:57 ` Nuno Silva
2003-08-19 5:33 ` Denis Vlasenko
2003-08-19 6:20 ` Andrew Morton
2003-08-19 9:05 ` J.A. Magallon
2003-08-19 9:16 ` Andrew Morton
2003-08-19 9:28 ` J.A. Magallon
2003-08-19 9:43 ` Andrew Morton
2003-08-19 13:32 ` Erik Andersen
2003-08-19 20:56 ` Andrew Morton
2003-08-19 14:28 ` Anthony R.
2003-08-19 18:26 ` Mike Fedyk
2003-08-19 5:42 ` Nick Piggin
2003-08-21 0:49 ` Takao Indoh
2003-08-21 23:47 ` Mike Fedyk
2003-08-25 2:45 ` Takao Indoh
2003-08-25 4:11 ` William Lee Irwin III [this message]
2003-08-25 22:58 ` Mike Fedyk
2003-08-26 9:46 ` William Lee Irwin III
2003-08-27 9:36 ` Takao Indoh
2003-08-27 9:45 ` William Lee Irwin III
2003-08-27 11:14 ` Takao Indoh
2003-08-27 11:36 ` William Lee Irwin III
2003-09-02 10:52 ` Takao Indoh
2003-09-02 11:30 ` William Lee Irwin III
2003-09-02 17:21 ` Mike Fedyk
2003-08-27 16:01 ` Joseph Malicki
[not found] <m6Bv.3ys.1@gated-at.bofh.it>
[not found] ` <mLY8.dO.5@gated-at.bofh.it>
2003-08-21 9:52 ` Ihar 'Philips' Filipau
2003-08-25 7:17 ` Takao Indoh
[not found] <n7lV.2HA.19@gated-at.bofh.it>
[not found] ` <ofAJ.4dx.9@gated-at.bofh.it>
[not found] ` <ogZM.5KJ.1@gated-at.bofh.it>
[not found] ` <oyDw.5FP.33@gated-at.bofh.it>
2003-08-26 10:15 ` Ihar 'Philips' Filipau
2003-08-26 17:46 ` Mike Fedyk
[not found] <oJ5P.699.21@gated-at.bofh.it>
[not found] ` <oJ5P.699.23@gated-at.bofh.it>
[not found] ` <oJ5P.699.25@gated-at.bofh.it>
[not found] ` <oJ5P.699.27@gated-at.bofh.it>
[not found] ` <oJ5P.699.19@gated-at.bofh.it>
[not found] ` <oQh2.4bQ.13@gated-at.bofh.it>
2003-08-26 19:08 ` Ihar 'Philips' Filipau
2003-08-26 19:23 ` Mike Fedyk
2003-08-27 10:21 ` Ihar 'Philips' Filipau
2003-08-27 11:07 ` Nick Piggin
[not found] <000801c36cb1$454d4950$1001a8c0@etofmv650>
2003-08-27 16:02 ` YoshiyaETO
-- strict thread matches above, loose matches on Subject: below --
2003-08-27 16:03 Joseph Malicki
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