linux-kernel - Re: [PATCH 2/3] [CRYPTO] Add optimized SHA-1 implementation for i486+

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Message-ID: <466D88C0.70403@cs.cmu.edu>
Date:	Mon, 11 Jun 2007 13:39:12 -0400
From:	Benjamin Gilbert <bgilbert@...cmu.edu>
To:	Matt Mackall <mpm@...enic.com>
CC:	Jeff Garzik <jeff@...zik.org>, akpm@...ux-foundation.org,
	herbert@...dor.apana.org.au, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] [CRYPTO] Add optimized SHA-1 implementation for i486+

Matt Mackall wrote:
> In 2003, I was getting 17MB/s out of my Athlon. Now I'm getting 2.7MB/s.
> Were your tests with or without the latest /dev/urandom fixes? This
> one in particular:
> 
> http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.21.y.git;a=commitdiff;h=374f167dfb97c1785515a0c41e32a66b414859a8

With.  I just tried 2.6.11 (the oldest that will boot) on the Pentium IV 
box and got 3.7 MB/s, so if it's a regression it's been around for a while.

--Benjamin Gilbert
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