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To: Delta <birtl00@dmi.usherb.ca>
Cc: linux-kernel@vger.kernel.org
Subject: Re: System unresponsitive when copying HD/HD
In-Reply-To: <3A7B1129.2ED4CCE4@dmi.usherb.ca>
From: Doug McNaught <doug@wireboard.com>
Date: 02 Feb 2001 15:13:07 -0500
In-Reply-To: Delta's message of "Fri, 02 Feb 2001 14:57:29 -0500"
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Delta <birtl00@dmi.usherb.ca> writes:

> While cp is copying from the second hard disk to the first hard disk,
> I find my system performance
> drop VERY sharply.  X is sloppy, even bash takes many seconds to
> respond.  I using two
> recent IDE disk (Fudjisu 13 gig, Maxtor 20 Gig), so I'm wondering why
> the system is so slow?  My mobo is a FIC SD11 and I have an athlon
> 550 Mhz.

You don't say what kernel you're running.  Some versions (2.2.16ish)
have very bad interactive response under I/O load.  2.2.18 is supposed
to be better, or try 2.2.19pre.

Also 'hdparm -u' may help, and turning on DMA if you're not using it.

-Doug
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