From: Ingo Oeser <ingo.oeser@informatik.tu-chemnitz.de>
To: Mike Galbraith <mikeg@wen-online.de>
Cc: Rik van Riel <riel@conectiva.com.br>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: Linux 2.4.4-ac10
Date: Fri, 18 May 2001 20:19:24 +0200 [thread overview]
Message-ID: <20010518201924.M754@nightmaster.csn.tu-chemnitz.de> (raw)
In-Reply-To: <Pine.LNX.4.33.0105181936240.583-100000@mikeg.weiden.de>; from mikeg@wen-online.de on Fri, May 18, 2001 at 07:45:15PM +0200
On Fri, May 18, 2001 at 07:45:15PM +0200, Mike Galbraith wrote:
> Yes, ~exactly! I chose 30 tasks because they almost do (tool/userland
> dependant.. must recalibrate often) fit. The bitch is to get the vm
> to automagically detect the rss/cache munch tradeoff point without all
> the manual help.
What about a sysctl for that? Choose decent steps and let 0
(which is an insane value) mean "let's kernel decide" and make
this default.
In the past we could do this by adjusting some watermarks in
/proc/sys/vm but now, we can't do anything but trust the genius
kernel developers.
I doubt that we can test all kinds of workload and even imagine
what pervert stuff some people do with their machines.
Tuning _is_ manual work. Always has been and always will be.
This countinously "I know it better then you" is what I hated
about Windows and now this comes more and more into Linux :-(
Rik: Would you take patches for such a tradeoff sysctl?
Regards
Ingo Oeser
--
To the systems programmer,
users and applications serve only to provide a test load.
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next parent reply other threads:[~2001-05-18 18:19 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.21.0105181403280.5531-100000@imladris.rielhome.conectiva>
[not found] ` <Pine.LNX.4.33.0105181936240.583-100000@mikeg.weiden.de>
2001-05-18 18:19 ` Ingo Oeser [this message]
2001-05-18 18:23 ` Rik van Riel
2001-05-18 18:58 ` Ingo Oeser
2001-05-18 20:12 ` Rik van Riel
2001-05-18 20:24 ` Mike Galbraith
2001-05-18 20:09 ` Mike Galbraith
2001-05-18 22:44 ` Rik van Riel
2001-05-18 22:58 ` Stephen C. Tweedie
2001-05-19 2:12 ` Rik van Riel
2001-05-19 2:32 ` Mike Castle
2001-05-19 6:45 ` Mike Galbraith
2001-05-19 4:40 ` Mike Galbraith
2001-05-19 17:13 ` [RFC][PATCH] " Mike Galbraith
2001-05-19 21:41 ` Rik van Riel
2001-05-20 3:29 ` Mike Galbraith
2001-05-20 6:42 ` Rik van Riel
2001-05-20 8:08 ` Mike Galbraith
[not found] ` <Pine.LNX.4.21.0105200546241.5531-100000@imladris.rielhome.conectiva>
2001-05-20 9:47 ` Mike Galbraith
[not found] ` <Pine.LNX.4.21.0105200703270.5531-100000@imladris.rielhome.conectiva>
2001-05-21 13:36 ` Stephen C. Tweedie
2001-05-20 21:54 ` Pavel Machek
2001-05-21 20:32 ` David Weinehall
2001-05-23 15:34 ` Rik van Riel
2001-05-23 17:24 ` Jonathan Morton
2001-05-25 8:39 ` Pavel Machek
2001-05-23 17:51 ` Scott Anderson
2001-05-25 8:10 ` David Weinehall
2001-05-25 18:39 ` Pavel Machek
2001-06-04 19:22 ` RPM Installation - Compilation errors jalaja devi
2001-05-24 8:48 ` [RFC][PATCH] Re: Linux 2.4.4-ac10 Mike Galbraith
2001-05-24 9:10 ` Rik van Riel
2001-05-24 10:32 ` Mike Galbraith
2001-05-24 11:03 ` Rik van Riel
2001-05-24 14:23 ` Mike Galbraith
2001-05-20 15:32 ` Ingo Oeser
2001-05-20 17:38 ` Mike Galbraith
2001-05-20 13:44 ` Zlatko Calusic
2001-05-20 17:58 ` Mike Galbraith
2001-05-20 19:32 ` Marcelo Tosatti
2001-05-20 21:03 ` Marcelo Tosatti
2001-05-21 3:54 ` Mike Galbraith
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