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Message-ID: <neqmhngsgs69fgflosl8v9yh.1435181982700@email.android.com>
Date: Wed, 24 Jun 2015 17:57:55 -0400
From: Alain Espinosa <alainesp@...ta.cu>
To: john-dev@...ts.openwall.com
Subject: Re: optimizing bcrypt cracking on x86
-------- Original message --------
From: Solar Designer <solar@...nwall.com>
Date:06/24/2015 5:03 PM (GMT-05:00)
To: john-dev@...ts.openwall.com
Cc:
Subject: Re: [john-dev] optimizing bcrypt cracking on x86
..."SHLD r32, r32, imm8" is latency 1, throughput 0.5.
In "Intel 64 and IA-32 Architectures Optimization Reference Manual", version 2013, June; page 618 (latency-throughput):
06_3C,06_45 06_3A,06_3E,06_2A,06_2D
shld r32, r32, imm (2-1) (1-0.5)
In page 593:
06_3C,06_45 is Haswell
06_3A,06_3E is Ivi Bridge
06_2A,06_2D is Sandy Bridge
For older CPUs it shows (4-1).
Regards,
Alain
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