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Message-ID: <20100429033341.GA3905@openwall.com>
Date: Thu, 29 Apr 2010 07:33:41 +0400
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: gcc version, Core i7
Hi,
I've updated the wiki page at:
http://openwall.info/wiki/internal/gcc-local-build
for gcc 4.5.0, optionally with Graphite (automatic parallelization).
I was using a Core i7 machine for my tests, like before.
The performance of John the Ripper when built with this new version of
gcc is similar to a build with 4.4.3 (well, maybe MD5-based and
Blowfish-based crypt(3) hashing becomes 1% faster or so, but this might
differ from system to system). Thus, this is not a topic of the wiki
page, which instead focuses on making those gcc builds (for any purpose)
and on parallelization capabilities of gcc.
The table of contents is:
* How to create a user-local build of recent GCC
* How to build GCC with the Graphite loop optimizations
o Parallel processing with GCC
+ Automatic parallelization example
+ OpenMP example
+ Application to John the Ripper
Alexander
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