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Date: Sat, 5 Jan 2013 10:12:41 +0530
From: Dhiru Kholia <>
Subject: Re: BLAKE2 (was: New plugin load order magic)

On Sat, Jan 5, 2013 at 9:15 AM, Dhiru Kholia <> wrote:
> On Sat, Jan 5, 2013 at 6:58 AM, Solar Designer <> wrote:
>> The current low speeds that we have for BLAKE2b are not good publicity.
> Speed is not that bad on 64-bit machines.
> $ ../run/john -fo:raw-blake2-512 -t # 1 core of AMD FX-8120
> Benchmarking: BLAKE2 512 [32/64]... DONE
> Raw:    2337K c/s real, 2337K c/s virtual

Using SSE on FX-8120 gives a small boost.

$ ../run/john -fo:raw-blake2-512 -t
Benchmarking: BLAKE2 512 [32/64]... DONE
Raw:	2533K c/s real, 2533K c/s virtual

However, doing the same on AMD X3 720 leads to a *weird* performance
drop from 2.xM c/s to 1.6M c/s.


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