linux-kernel - Re: RFC: Micro-optimize direct IO submission path

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Date:	Wed, 27 Jul 2011 23:35:48 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Andi Kleen <andi@...stfloor.org>, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, dehrenberg@...gle.com
Subject: Re: RFC: Micro-optimize direct IO submission path

On Wed, Jul 27, 2011 at 05:06:06PM -0400, Christoph Hellwig wrote:
> Any chance you could resend these against current mainline?  It would
> be sad to miss these easy optimizations.

I was waiting for the benchmarkers to rerun them.

I had done an additional prefetch optimization that seemed to give
1% more on a big benchmark for one result, but there was another
suspicious one.

Hopefully soon.

-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only.
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