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Message-ID: <20070117101338.GA20833@openwall.com>
Date: Wed, 17 Jan 2007 13:13:38 +0300
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: NTLM patch performance
On Mon, Jan 15, 2007 at 10:32:53AM -0800, Alain Espinosa wrote:
> In fact i make some improve in the NT patch (witch C code) that benchmark
> 5100K.
> I send this code to Simon. This means that sse2 code its 4 times
> slower that C code and dont help much.
Sorry, I don't understand you here - maybe the witch is at fault. ;-)
> one sse2 intruction
> one mmx instruction
> ...............................
> and we can compute 6 words in parallel.
Yes, feel free to give this a try. Mixing in some x86-64 ALU
instructions might help improve performance on some processors, too.
--
Alexander Peslyak <solar at openwall.com>
GPG key ID: 5B341F15 fp: B3FB 63F4 D7A3 BCCC 6F6E FC55 A2FC 027C 5B34 1F15
http://www.openwall.com - bringing security into open computing environments
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