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Subject: Re: [RFC PATCH] crypto: crc32c-pclmul - Use pmovzxdq to shrink
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From: Tim Chen <tim.c.chen@linux.intel.com>
To: George Spelvin <linux@horizon.com>
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Date: Fri, 30 May 2014 09:10:48 -0700
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On Fri, 2014-05-30 at 01:25 -0400, George Spelvin wrote:

> 
> Averaging the 8K bytes per update, I do see an average of 3.2 cycles per
> operation (that is, per 8K of data processed) lost, or about 1 cycle per
> (3K or less) block processed.  I'm hoping the reduced D-cache polution
> makes it up somewhere else.

That's very small (less than 0.2%) so I think it's acceptable.

Tim