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Date: Fri, 11 Jan 2002 00:22:18 +0100 (CET)
From: Ingo Molnar <mingo@elte.hu>
Reply-To: <mingo@elte.hu>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: <linux-kernel@vger.kernel.org>, Mike Kravetz <kravetz@us.ibm.com>,
        Anton Blanchard <anton@samba.org>, george anzinger <george@mvista.com>,
        Davide Libenzi <davidel@xmailserver.org>,
        Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [patch] O(1) scheduler, -G1, 2.5.2-pre10, 2.4.17 (fwd)
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On Thu, 10 Jan 2002, Linus Torvalds wrote:

> > First it cleans up the load balancer's interaction with the timer tick.
> > There are now two functions called from the timer tick: busy_cpu_tick()
> > and idle_cpu_tick(). It's completely up to the scheduler to use them
> > appropriately.
>
> This is _wrong_. The timer doesn't even know whether something is an idle
> task or not.

yes - thought of this after writing the mail.

> Proof: kapmd (right now the scheduler doesn't know this either, but at
> least we could teach it to know).

yes - pid == 0 is not the right information. I've fixed this in my tree.

	Ingo

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