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From: Andrew Morton <akpm@osdl.org>
To: root <root@rachel.trevorj.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Major 2.4 / 2.{5|6}-smp Scheduler Slow-ness
Date: Wed, 30 Jul 2003 17:36:44 -0700	[thread overview]
Message-ID: <20030730173644.06d86b2a.akpm@osdl.org> (raw)
In-Reply-To: <20030731002727.GA3827@rachel.trevorj.com>

root <root@rachel.trevorj.com> wrote:
>
> Ok, first of all, I have never been able to run a 2.4 kernel on this 
> machine, it runs _very_ slow. By slow, i mean it takes literally HOURS 
> to boot. I have tried 2.4.20,2.4.21, and also both with the openmosix 
> patches.
> 
> Now, the 2.5/6 kernel runs beautifully, so i have been running both 
> vanilla, and vanilla+mm patches, both run fine. Although, using the smp 
> scheduler makes it do the exact same thing as 2.4, albeit a little 
> faster. So this leads me into thinking *very* 
> much so that this is a scheduler issue.

boot with "profile=1", learn to use readprofile, post the results.


irq 21: nobody cared!
...
handlers:
[<c8a37620>] (snd_emu10k1_interrupt+0x0/0x3f0 [snd_emu10k1])
Disabling IRQ #21

This is fishy.  Try removing the sound driver from the kernel altogether. 
And any other unneeded-to-boot drivers, come to that.


      reply	other threads:[~2003-07-31  0:48 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-31  0:27 root
2003-07-31  0:36 ` Andrew Morton [this message]

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