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Date: Mon, 3 Jun 2013 05:20:00 +0400
From: Solar Designer <>
Subject: Re: Bleeding-jumbo extensions help. Ubuntu 12.4 Linux on Oracle VM

On Sun, Jun 02, 2013 at 08:44:49PM -0400, James Ross wrote:
> Thanks for the help everyone,
> jim@...-VirtualBox:~/JohnTheRipper/run$ ./john --format=bitcoin hash
> Loaded 1 password hash (bitcoin, bitcoin (iterative SHA-256 + AES-256)
> [32/32])
> Press 'q' or Ctrl-C to abort, almost any other key for status
> 0g 0:00:00:12 1.75% 2/3 (ETA: 20:51:30) 0g/s 9.419p/s 9.419c/s 9.419C/s brian

OK, now you may enable OpenMP (uncomment the OMPFLAGS line in the
Makefile as the README suggests) for a speed like:

Will run 8 OpenMP threads
Benchmarking: bitcoin, bitcoin (iterative SHA-256 + AES-256) [32/64]... (8xOMP) DONE
Raw:    48.0 c/s real, 6.0 c/s virtual

This is on AMD FX-8120.

Alternatively, you may run with "--fork=8" (or whatever number is right
for your CPU).  For either approach to make sense, you need to export
multiple logical CPUs into your VM.


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