john-users - Re: core by core speed

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Date: Mon, 22 Mar 2010 20:15:10 +0300
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: core by core speed

On Mon, Mar 22, 2010 at 05:54:20PM +0100, websiteaccess@...il.com wrote:
>  Here it is your tests requests (Hope I understood correclty your 
> whishes !).

Thanks.  No, that's not it.  "--test" is unaffected by the Idle setting.
You have to actually run JtR on a password hash file for a minute.

While your tests are unrelated to the Idle setting, they do show that
your CPU is indeed not 8-core (but quad-core with Hyperthreading), and
they also hint that there's some slowdown with the MPI build.  To get a
better idea of the latter, I suggest that you run
"mpirun -np 1 ./john --test" (on an MPI-enabled build indeed).

Alexander