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Date: Wed, 15 Feb 2012 20:02:06 +0400
From: Solar Designer <>
Subject: Re: OMP version not use all CPU

On Wed, Feb 15, 2012 at 07:46:22AM -0800, Alain Espinosa wrote:
> On 2/15/12, Solar Designer <> wrote:
> > What c/s rates are you getting for these tests, though?  I am interested
> > in both --test and actual runs.
> Option --test was tested on the same Core i3 machine mentioned in
> "".

Yes, but my question was about speeds of john-omp.exe - I don't think
you provided any numbers for that (except for CPU time use percentages).

> I give a try to NT2
> format also ("real" and --test), and found it a very little speed-up
> compared with NT. I assume that using 64 bits john will be different.
> Some numbers for 1,10,100...(same as webpage) hashes:
> John-1.7.9-j5[nt2]	19.41	18.9538	18.51	16.544	16.5446	12.019226	11.16	5.122
> I will add all those numbers to the performance webpage mentioned earlier.

OK.  There was in fact a known slight performance regression with NT in
1.7.9-jumbo-5; it's been addressed in magnum's tree, so the next jumbo
should have faster NT (should be about the same as NT2 then).

And perhaps you can contribute some optimizations, too. ;-)


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