linux-kernel - Re: aio is unlikely

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Date:	Fri, 18 May 2007 17:11:42 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Alex Volkov <avcp-lkmail@....net>,
	'Linux Kernel Mailing List' <linux-kernel@...r.kernel.org>
Subject: Re: aio is unlikely

Andrew Morton wrote:
> Yes, if you agree with Jeff's original point.
> 
> But I don't, actually.  Sure, on some machines+workloads, AIO is more
> common than sync IO.  But I expect that when we sum across all the
> machines+workloads in the world, sync IO is more common and is hence the
> case we should optimise for.
> 
> That's assuming that the unlikely() actually does something.


For the record, I agreed with your counter-point, and retract[ed?] my 
disagreement...

	Jeff


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