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From: "Mohammad A. Haque" <mhaque@haque.net>
To: Peter Osterlund <peter.osterlund@mailbox.swipnet.se>
Cc: Linus Torvalds <torvalds@transmeta.com>, linux-kernel@vger.kernel.org
Subject: Re: 2.4.4 sluggish under fork load
Date: Sat, 28 Apr 2001 10:26:13 -0400	[thread overview]
Message-ID: <3AEAD305.6ADC22F2@haque.net> (raw)
In-Reply-To: <Pine.LNX.4.33.0104281322070.1159-100000@ppro.localdomain>

Peter Osterlund wrote:
> 
> I have noticed that 2.4.4 feels a lot less responsive than 2.4.3 under
> fork load. This is caused by the "run child first after fork" patch. I
> have tested on two different UP x86 systems running redhat 7.0.
> 
> For example, when running the gcc configure script, the X mouse pointer is
> very jerky. The configure script itself runs approximately as fast as in
> 2.4.3.
> 
> Another thing is that the bash loop "while true ; do /bin/true ; done" is
> not possible to interrupt with ctrl-c.
> 

Just as a data point, I'm experiencing this also.

> Reverting the fork patch makes all these problems go away on my machine.
> I'm not saying that this is necessarily a good idea, that patch might be
> good for other reasons.

I'll try out this patch soon.
-- 

=====================================================================
Mohammad A. Haque                              http://www.haque.net/ 
                                               mhaque@haque.net

  "Alcohol and calculus don't mix.             Project Lead
   Don't drink and derive." --Unknown          http://wm.themes.org/
                                               batmanppc@themes.org
=====================================================================

  parent reply	other threads:[~2001-04-28 14:26 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-28 11:52 2.4.4 sluggish under fork load Peter Osterlund
2001-04-28 14:16 ` J . A . Magallon
2001-04-28 14:26 ` Mohammad A. Haque [this message]
2001-04-28 15:07 ` Rene Puls
2001-04-28 17:10   ` John Kacur
2001-04-28 18:00     ` Peter Osterlund
2001-04-28 17:54 ` Linus Torvalds
2001-04-28 19:14   ` Peter Osterlund
2001-04-28 20:00 ` Harald Dunkel
  -- strict thread matches above, loose matches on Subject: below --
2001-04-29  7:14 Adam J. Richter
2001-04-29  8:04 Adam J. Richter
     [not found] <Pine.LNX.4.21.0104281928080.10759-100000@penguin.transmeta.com>
2001-04-29  8:26 ` Peter Osterlund
2001-04-30 17:51   ` Andrea Arcangeli
2001-04-30 21:45     ` Peter Osterlund
2001-05-01  2:38     ` Rik van Riel
2001-05-01  5:18       ` Andrea Arcangeli
2001-05-01 16:55         ` Andrea Arcangeli
2001-05-01 17:33           ` J . A . Magallon
2001-05-01 20:34           ` Alan Cox
2001-05-01  4:18 Adam J. Richter
2001-05-03 14:02 Hubertus Franke

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