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Message-ID: <20120623184341.GA535@openwall.com>
Date: Sat, 23 Jun 2012 22:43:41 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Cc: earthquake@...on.hu
Subject: MySQL-fast fixes, OpenMP support
Hi,
We appear to lack a proper license statement for MYSQL_fast_fmt_plug.c.
It is highly desirable to have one added, like this:
http://openwall.info/wiki/john/licensing
The attached patch makes assorted minor fixes to MYSQL_fast_fmt_plug.c,
adds an optimization for processing the first character of each
password, and adds OpenMP support.
Before the patch:
Benchmarking: MySQL [32/64 (label mysql-fast)]... DONE
Raw: 22043K c/s real, 22043K c/s virtual
With the patch:
Benchmarking: MySQL [32/64 (label mysql-fast)]... DONE
Raw: 23044K c/s real, 23044K c/s virtual
OpenMP:
Benchmarking: MySQL [32/64 (label mysql-fast)]... (8xOMP) DONE
Raw: 44098K c/s real, 13405K c/s virtual
Benchmarking: MySQL [32/64 (label mysql-fast)]... (4xOMP) DONE
Raw: 36749K c/s real, 15855K c/s virtual
Benchmarking: MySQL [32/64 (label mysql-fast)]... (2xOMP) DONE
Raw: 28550K c/s real, 18366K c/s virtual
OpenMP build, but forced to 1 thread:
Benchmarking: MySQL [32/64 (label mysql-fast)]... DONE
Raw: 18692K c/s real, 18692K c/s virtual
All of these are on FX-8120.
OpenMP scaling is poor, but it might sometimes be better than nothing
(although using separate processes or MPI will currently work better).
Alexander
View attachment "john-mysql-openmp.diff" of type "text/plain" (8109 bytes)
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