linux-kernel - Re: [PATCH] [12/20] x86: Use a per cpu timer for correctable machine check checking

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Date:	Thu, 3 Jan 2008 13:56:09 +0100
From:	Andi Kleen <ak@...e.de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] [12/20] x86: Use a per cpu timer for correctable machine check checking

On Thursday 03 January 2008 11:49:56 Ingo Molnar wrote:
> 
> * Andi Kleen <ak@...e.de> wrote:
> 
> > Previously the code used a single timer that then used 
> > smp_call_function to interrupt all CPUs while the original CPU was 
> > waiting for them.
> > 
> > But it is better / more real time and more power friendly to simply 
> > run individual timers on each CPU so they all do this independently.
> > 
> > This way no single CPU has to wait for all others.
> 
> i think we should unify this code first and provide it on 32-bit as 
> well.

That's done in another patch that hasn't been posted yet.

-Andi
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