linux-kernel - Re: [patch] dubious process system time.

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Message-Id: <200608241718.29406.ak@suse.de>
Date:	Thu, 24 Aug 2006 17:18:29 +0200
From:	Andi Kleen <ak@...e.de>
To:	schwidefsky@...ibm.com
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [patch] dubious process system time.

> At the moment hardirq+softirq is just added to a random process, in
> general this is completely wrong. 

It's better than not accounting it at all.

> You just need a system with a cpu hog 
> and an i/o bound process and you get queer results.

Yes, but system load that is invisible to standard monitoring
tools is even worse.

If you stop accounting it to random processes you have to 
account it somewhere else. Preferably somewhere that standard tools
automatically pick up.

-Andi
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