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Date: Thu, 30 Jun 2005 22:50:29 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Karsten Wiese <annabellesgarden@yahoo.de>
Cc: William Weston <weston@sysex.net>, linux-kernel@vger.kernel.org
Subject: Re: Real-Time Preemption, -RT-2.6.12-final-V0.7.50-24
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References: <200506281927.43959.annabellesgarden@yahoo.de> <20050629193804.GA6256@elte.hu> <200506300136.01061.annabellesgarden@yahoo.de> <200506301952.22022.annabellesgarden@yahoo.de>
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* Karsten Wiese <annabellesgarden@yahoo.de> wrote:

> Here come some numbers to back up the usefullness of 
> CONFIG_X86_UP_IOAPIC_FAST. (and to show that my patch actually works 
> ;-)) All measurement where taken on an UP Athlon64 2Ghz running 32bit 
> 2.6.12-RT-50-35 PREEMPT_RT on a K8T800 mobo.

thanks - the numbers are pretty convincing. I've applied most of your 
patch (except the instrumentation bits), and it seems to work quite well 
- one of my testsystems that had interrupt storms before can now run 
IOAPIC_FAST. (i also enabled the option to be selectable for SMP kernels 
too. If things work out fine we can make it default-on.) I've uploaded 
the -50-39 patch with these changes included.

	Ingo