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To: Mike Galbraith <mikeg@wen-online.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
        linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2.4.2-ac20 patch for process time double-counting (was: Linux 2.4.2 fails to merge mmap areas, 700% slowdown.)
In-Reply-To: <Pine.LNX.4.33.0103240841280.2032-100000@mikeg.weiden.de>
From: buhr@stat.wisc.edu (Kevin Buhr)
In-Reply-To: Mike Galbraith's message of "Sat, 24 Mar 2001 08:49:57 +0100 (CET)"
Date: 24 Mar 2001 13:27:15 -0600
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Mike Galbraith <mikeg@wen-online.de> writes:
> 
> Times are fine.  Local APIC timer interrupts are used.

Okay, thanks.  That's good.

> Testing's easy, thanks for the fix.

This is where I'd submit the patch, but Alan evidently works 80 hours
a day.  ;)  The new patch is already in ac24.

Alan, FYI, I tested the patch on my SMP motherboard with CONFIG_SMP
(and maxcpus=0,1,unspecified) and with all combinations of
CONFIG_X86_UP_{,IO}APIC) and Michael tested CONFIG_SMP and
CONFIG_X86_UP_APIC on his non-SMP motherboard, so I don't think this
will come back to bite anyone.

Thanks!

Kevin <buhr@stat.wisc.edu>
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