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Date: Sun, 3 Apr 2005 04:33:49 +0200
From: Matthias Buelow <mkb@incubus.de>
To: Pierre-Luc Drouin <pldrouin@pldrouin.net>
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cc: freebsd-stable@freebsd.org
Subject: Re: 5.4-prerelease - hanging under load
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Pierre-Luc Drouin wrote:

>Since I upgraded from 5.3-stable to 5.4-prerelease, I've noticed that my 
>computer is hanging badly under load. I've a P4 2.53 GHz without 
>hyperthreading (no SMP). I use the same kernel configurations than 
>before. Now when I compile a port for example, the mouse pointer hangs 
>in Fluxbox and Mozilla takes forever (meaning ~5 sec) to refresh the 
>screen. Even vi hangs. I do not see any warning/error message. Is it a 
>known problem with 5.4?

Not quite as dramatic here, but when, say, the firefox source gets
untarred, my machine becomes quite unresponsive, including audio
decoding (xmms) stuttering and the mouse cursor jumping around.
Haven't seen the likes since the 486 days.  This is 5.4-PRERELEASE
on a P4 3GHz.  Perhaps some badly balanced scheduler stuff?

mkb.