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Date: Sat, 18 Feb 2006 00:49:47 +0100
From: Michal Luczaj <regenrecht@...pl>
To: john-users@...ts.openwall.com
Subject: Re: DIGEST-MD5, dominosec optimization
Solar Designer wrote:
> Well, another guess would be that gcc generates code different from
> what you would expect. Did you review the assembly output ("gcc -S
> ...")?
Without any -O the asm code was terrible indeed. But adding -O2 (just
like in 1.7's Makefile) produced code that seemed to be fine. Well,
whatever.
> If you want to achieve a significant speedup, you should concentrate
> on trying multiple passwords in parallel and taking advantage of that
> in your inner loop.
OK, I'll try.
Michal
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