From: Stuart Young <sgy@amc.com.au>
To: linux-kernel@vger.kernel.org
Cc: Hans Reiser <reiser@namesys.com>,
Rik van Riel <riel@conectiva.com.br>,
Andreas Dilger <adilger@turbolabs.com>,
Shawn Starr <spstarr@sh0n.net>,
root@chaos.analogic.com, Chris Mason <mason@suse.com>
Subject: Re: Possible Idea with filesystem buffering.
Date: Wed, 23 Jan 2002 12:14:18 +1100 [thread overview]
Message-ID: <5.1.0.14.0.20020123115902.026be410@mail.amc.localnet> (raw)
In-Reply-To: <Pine.LNX.3.95.1020122164209.14535A-100000@chaos.analogic.c om>
In-Reply-To: <2116720000.1011733708@tiny>
At 05:10 PM 22/01/02 -0500, Richard B. Johnson wrote:
>We need a free-RAM target, possibly based upon a percentage of
>available RAM. The lack of such a target is what causes the
>out-of-RAM condition we have been experiencing. Somebody thought
>that "free RAM is wasted RAM" and the VM has been based upon
>that theory. That theory has been proven incorrect. You need
>free RAM, just like you need "excess horsepower" to make
>automobiles drivable. That free RAM is the needed "rubber-band"
>to absorb the dynamics of real-world systems.
It'd be nice if this cache high/low watermark was adjustable, preferably
through say the sysctl interface, on a running kernel. This would mean that
a competent system administrator could tune the system to their needs. A
decent runscript for a particular program (I'm assuming run as root here)
could adjust the value to absorb the dynamics of a particular program.
Stuart Young - sgy@amc.com.au
(aka Cefiar) - cefiar1@optushome.com.au
[All opinions expressed in the above message are my]
[own and not necessarily the views of my employer..]
next prev parent reply other threads:[~2002-01-23 1:14 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-20 9:04 Shawn
2002-01-20 11:31 ` Hans Reiser
2002-01-20 13:56 ` Rik van Riel
2002-01-20 14:21 ` Hans Reiser
2002-01-20 15:13 ` Rik van Riel
2002-01-20 21:15 ` Hans Reiser
2002-01-20 21:24 ` Rik van Riel
2002-01-20 21:30 ` Hans Reiser
2002-01-20 21:40 ` Rik van Riel
2002-01-20 21:49 ` Hans Reiser
2002-01-20 22:00 ` Rik van Riel
2002-01-21 0:10 ` Matt
2002-01-21 0:57 ` Hans Reiser
2002-01-21 1:28 ` Anton Altaparmakov
2002-01-21 2:29 ` Shawn Starr
2002-01-21 19:15 ` Shawn Starr
2002-01-22 22:02 ` Hans Reiser
2002-01-21 9:21 ` Horst von Brand
2002-01-21 9:13 ` Horst von Brand
2002-01-21 15:29 ` Eric W. Biederman
2002-01-20 17:51 ` Mark Hahn
2002-01-20 21:24 ` Hans Reiser
2002-01-20 21:32 ` Rik van Riel
2002-01-21 15:37 ` Eric W. Biederman
2002-01-20 22:45 ` Shawn Starr
2002-01-20 23:11 ` Rik van Riel
2002-01-20 23:40 ` Shawn Starr
2002-01-20 23:48 ` Rik van Riel
2002-01-21 0:44 ` Hans Reiser
2002-01-21 0:52 ` Rik van Riel
2002-01-21 1:08 ` Hans Reiser
2002-01-21 1:39 ` Rik van Riel
2002-01-21 11:10 ` Hans Reiser
2002-01-21 12:12 ` Rik van Riel
2002-01-21 13:42 ` Hans Reiser
2002-01-21 13:54 ` Rik van Riel
2002-01-21 14:07 ` Hans Reiser
2002-01-21 17:21 ` Chris Mason
2002-01-21 17:47 ` Hans Reiser
2002-01-21 19:44 ` Chris Mason
2002-01-21 20:41 ` Hans Reiser
2002-01-21 21:53 ` Chris Mason
2002-01-22 6:02 ` Andreas Dilger
2002-01-22 10:09 ` Tommi Kyntola
2002-01-22 11:39 ` Hans Reiser
2002-01-22 18:41 ` Andrew Morton
2002-01-22 19:03 ` Rik van Riel
2002-01-23 20:35 ` [Ext2-devel] " Stephen C. Tweedie
2002-01-23 20:48 ` Hans Reiser
2002-01-23 20:55 ` Andrew Morton
2002-01-23 23:53 ` Hugh Dickins
2002-01-24 0:01 ` Jeff Garzik
2002-01-22 20:19 ` Hans Reiser
2002-01-22 20:50 ` Rik van Riel
2002-01-22 14:03 ` Chris Mason
2002-01-22 14:39 ` Rik van Riel
2002-01-22 18:46 ` Hans Reiser
2002-01-22 20:13 ` Steve Lord
2002-01-22 20:20 ` Rik van Riel
2002-01-22 22:31 ` Hans Reiser
2002-01-22 23:34 ` Rik van Riel
2002-01-23 17:15 ` Josh MacDonald
2002-01-22 19:19 ` Chris Mason
2002-01-22 20:32 ` Hans Reiser
2002-01-22 21:12 ` Rik van Riel
2002-01-22 21:28 ` Shawn Starr
2002-01-22 21:31 ` Rik van Riel
2002-01-22 21:08 ` Chris Mason
2002-01-22 22:05 ` Hans Reiser
2002-01-22 22:21 ` Rik van Riel
2002-01-23 0:16 ` Hans Reiser
2002-01-22 22:10 ` Richard B. Johnson
2002-01-23 1:14 ` Stuart Young [this message]
2002-01-23 17:16 ` Daniel Phillips
2002-01-22 21:22 ` Chris Mason
2002-01-21 0:28 ` Hans Reiser
2002-01-21 0:47 ` Rik van Riel
2002-01-21 1:01 ` Hans Reiser
2002-01-21 1:21 ` Rik van Riel
2002-01-21 1:26 ` Hans Reiser
2002-01-21 1:40 ` Rik van Riel
2002-01-20 15:49 ` Anton Altaparmakov
2002-01-20 21:21 ` Hans Reiser
2002-01-22 21:02 Rolf Lear
[not found] <Pine.LNX.4.33L.0201222008280.32617-100000@imladris.surriel.com>
2002-01-22 23:31 ` Shawn Starr
2002-01-22 23:37 ` Rik van Riel
2002-01-23 5:26 ` Shawn Starr
2002-01-23 9:43 Martin Knoblauch
2002-01-23 11:52 ` Helge Hafting
2002-01-23 12:02 ` Rik van Riel
2002-01-23 12:11 ` Martin Knoblauch
[not found] <Pine.LNX.4.33.0201231301560.24338-100000@coffee.psychology.mcmaster.ca>
[not found] ` <3C4FC478.BCC44CDF@TeraPort.de>
[not found] ` <3C4FDB80.C9F83EBB@aitel.hist.no>
2002-01-24 13:59 ` Martin Knoblauch
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