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Message-ID: <20150624232032.GA30841@openwall.com>
Date: Thu, 25 Jun 2015 02:20:32 +0300
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: optimizing bcrypt cracking on x86
On Wed, Jun 24, 2015 at 07:18:56PM -0400, Alain Espinosa wrote:
> > This is other thing that is different in my tests (may be my asm code is suboptimal). In a core i3-2120 I get 4% speed up interleaving 3 keys instead of 2. This is using 4 threads.
>
> ...Of course, on an HT-less CPU you need to interleave 3 or 4 instances
> rather than just 2.
>
> This is a HT capable CPU: 2 cores each with 2 HT threads.
Oh, sorry. So you have both kinds of CPUs (HT and not) for your bcrypt
testing now? That's great.
Alexander
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