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From: Jens Axboe <jens.axboe@oracle.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: "Alan D. Brunelle" <Alan.Brunelle@hp.com>,
	linux-kernel@vger.kernel.org, npiggin@suse.de, dgc@sgi.com,
	arjan@linux.intel.com
Subject: Re: IO queueing and complete affinity w/ threads: Some results
Date: Mon, 18 Feb 2008 15:16:14 +0100	[thread overview]
Message-ID: <20080218141614.GD23197@kernel.dk> (raw)
In-Reply-To: <p73ablyxuci.fsf@bingen.suse.de>

On Mon, Feb 18 2008, Andi Kleen wrote:
> Jens Axboe <jens.axboe@oracle.com> writes:
> 
> > and that scrapping the remote
> > softirq trigger stuff is sanest.
> 
> I actually liked Nick's queued smp_function_call_single() patch. So even
> if it was not used for block I would still like to see it being merged 
> in some form to speed up all the other IPI users.

Sure, Nicks patch was generically usable, my IPI stuff was just a hack
made to go as fast as possible for a single use. The current
call-on-other cpu path is not exactly scalable...

-- 
Jens Axboe


  reply	other threads:[~2008-02-18 14:16 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-11 20:56 IO queueing and complete affinity w/ threads: Some results Alan D. Brunelle
2008-02-12 20:56 ` Alan D. Brunelle
2008-02-12 22:08 ` Alan D. Brunelle
2008-02-12 22:26   ` Alan D. Brunelle
2008-02-13 15:35 ` Alan D. Brunelle
2008-02-14 15:36 ` Alan D. Brunelle
2008-02-18 12:37   ` Jens Axboe
2008-02-18 13:33     ` Andi Kleen
2008-02-18 14:16       ` Jens Axboe [this message]
2008-02-19  1:49       ` Nick Piggin
2008-02-19 21:14     ` Paul Jackson
2008-02-19 21:31       ` Mike Travis
2008-02-20  8:08         ` Jens Axboe

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