linux-kernel - Re: x86: Is there still value in having a special tlb flush IPI vector?

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Message-ID: <20080729021215.GG30344@one.firstfloor.org>
Date:	Tue, 29 Jul 2008 04:12:15 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Jens Axboe <jens.axboe@...cle.com>,
	Andi Kleen <andi@...stfloor.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: x86: Is there still value in having a special tlb flush IPI vector?

On Mon, Jul 28, 2008 at 04:20:53PM -0700, Jeremy Fitzhardinge wrote:
> Resend to cc: Andi on an address which actually works.
> 
> Jeremy Fitzhardinge wrote:
> >Now that normal smp_function_call is no longer an enormous bottleneck, 

Hmm? It still uses a global lock at least as of current git tree.

-Andi
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