From: Szabolcs Szakacsits <szaka@f-secure.com>
To: Rik van Riel <riel@conectiva.com.br>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
linux-mm@kvack.org, Andrew Morton <andrewm@uow.edu.au>
Subject: Re: suspend processes at load (was Re: a simple OOM ...)
Date: Mon, 16 Apr 2001 14:17:52 +0200 (MET DST) [thread overview]
Message-ID: <Pine.LNX.4.30.0104161353270.20939-100000@fs131-224.f-secure.com> (raw)
In-Reply-To: <Pine.LNX.4.21.0104131317110.12164-100000@imladris.rielhome.conectiva>
On Fri, 13 Apr 2001, Rik van Riel wrote:
> That is, when the load gets too high, we temporarily suspend
> processes to bring the load down to more acceptable levels.
Please don't. Or at least make it optional and not the default or user
controllable. Trashing is good. People get feedback system is not
properly setup and they can tune. The problem Linux uses more and more
hardcoded values and "try to be clever algorithms" instead of tuning
parameters (see e.g. read-only /proc/sys/vm/freepages and other place
holders). Suspended pacemakers, quakes, e-commerce web servers, etc is
not the expected behavior and I'm not sure it will make people happy.
This is also my problem with __alloc_pages(), potentially looping
infinitely instead of falling back at one point and let the ENOMEM
handled by the upper layer (trying a smaller order allocation or
whatever).
Szaka
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next prev parent reply other threads:[~2001-04-16 12:17 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-12 16:58 [PATCH] a simple OOM killer to save me from Netscape Slats Grobnik
2001-04-12 18:25 ` Rik van Riel
2001-04-12 18:49 ` James A. Sutherland
2001-04-13 6:45 ` Eric W. Biederman
2001-04-13 16:20 ` Rik van Riel
2001-04-14 1:20 ` Stephen C. Tweedie
2001-04-16 21:06 ` James A. Sutherland
2001-04-16 21:40 ` Jonathan Morton
2001-04-16 22:12 ` Rik van Riel
2001-04-16 22:21 ` James A. Sutherland
2001-04-17 14:26 ` Jonathan Morton
2001-04-17 19:53 ` Rik van Riel
2001-04-17 20:44 ` James A. Sutherland
2001-04-17 20:59 ` Jonathan Morton
2001-04-17 21:09 ` James A. Sutherland
2001-04-14 7:00 ` Eric W. Biederman
2001-04-15 5:05 ` Rik van Riel
2001-04-15 5:20 ` Rik van Riel
2001-04-16 11:52 ` Szabolcs Szakacsits
2001-04-16 12:17 ` Szabolcs Szakacsits [this message]
2001-04-17 19:48 ` suspend processes at load (was Re: a simple OOM ...) Rik van Riel
2001-04-18 21:32 ` Szabolcs Szakacsits
2001-04-18 20:38 ` James A. Sutherland
2001-04-18 23:25 ` Szabolcs Szakacsits
2001-04-18 22:29 ` Rik van Riel
2001-04-19 10:14 ` Stephen C. Tweedie
2001-04-19 13:23 ` Szabolcs Szakacsits
2001-04-19 2:11 ` Rik van Riel
2001-04-19 7:08 ` James A. Sutherland
2001-04-19 13:37 ` Szabolcs Szakacsits
2001-04-19 12:26 ` Christoph Rohland
2001-04-19 12:30 ` James A. Sutherland
2001-04-19 9:15 ` James A. Sutherland
2001-04-19 18:34 ` Dave McCracken
2001-04-19 18:47 ` James A. Sutherland
2001-04-19 18:53 ` Dave McCracken
2001-04-19 19:10 ` James A. Sutherland
2001-04-20 14:58 ` Rik van Riel
2001-04-21 6:10 ` James A. Sutherland
2001-04-19 19:13 ` Rik van Riel
2001-04-19 19:47 ` Gerrit Huizenga
2001-04-20 12:44 ` Szabolcs Szakacsits
2001-04-19 20:06 ` James A. Sutherland
2001-04-20 12:29 ` Szabolcs Szakacsits
2001-04-20 11:50 ` Jonathan Morton
2001-04-20 13:32 ` Szabolcs Szakacsits
2001-04-20 14:30 ` Rik van Riel
2001-04-22 10:21 ` James A. Sutherland
2001-04-20 12:25 ` Szabolcs Szakacsits
2001-04-21 6:08 ` James A. Sutherland
2001-04-20 12:18 ` Szabolcs Szakacsits
2001-04-22 10:19 ` James A. Sutherland
2001-04-17 10:58 ` limit for number of processes Uman
2001-04-19 14:03 suspend processes at load (was Re: a simple OOM ...) Jonathan Morton
2001-04-19 18:25 ` Dave McCracken
2001-04-19 18:32 ` James A. Sutherland
2001-04-19 20:23 ` Jonathan Morton
2001-04-20 12:14 ` Szabolcs Szakacsits
2001-04-20 12:02 ` Jonathan Morton
2001-04-20 14:48 ` Dave McCracken
2001-04-21 5:49 ` James A. Sutherland
2001-04-21 19:16 ` Joseph A. Knapka
2001-04-21 19:41 ` Jonathan Morton
2001-04-22 10:08 ` James A. Sutherland
2001-04-22 16:53 ` Jonathan Morton
2001-04-22 17:06 ` James A. Sutherland
2001-04-22 18:18 ` Jonathan Morton
2001-04-22 18:57 ` Rik van Riel
2001-04-22 19:41 ` James A. Sutherland
2001-04-22 20:33 ` Jean Francois Martinez
2001-04-22 20:21 ` Jonathan Morton
2001-04-22 20:36 ` Jonathan Morton
2001-04-22 19:01 ` James A. Sutherland
2001-04-22 19:11 ` Rik van Riel
2001-04-22 20:36 ` James A. Sutherland
2001-04-22 19:30 ` Jonathan Morton
2001-04-22 20:35 ` James A. Sutherland
2001-04-22 20:41 ` Rik van Riel
2001-04-22 20:58 ` James A. Sutherland
2001-04-22 21:26 ` Rik van Riel
2001-04-22 22:26 ` Jonathan Morton
2001-04-23 5:55 ` James A. Sutherland
2001-04-23 5:59 ` Rik van Riel
2001-04-21 20:29 ` Rik van Riel
2001-04-22 10:08 ` James A. Sutherland
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