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Date: Fri, 22 Jun 2012 01:21:04 +0200
From: Frank Dittrich <frank_dittrich@...mail.com>
To: john-dev@...ts.openwall.com
Subject: Re: relbench and changed format names

On 06/22/2012 12:49 AM, magnum wrote:
> On 2012-06-22 00:37, Frank Dittrich wrote:
>> Benchmarking: NT MD4 [128/128 SSE2 + 32/32]... DONE
>> Raw:    2202K c/s real, 2224K c/s virtual
>>
>> Benchmarking: NT MD4 [128/128 SSE2 intrinsics 12x]... DONE
>> Raw:    5078K c/s real, 5235K c/s virtual
> 
> How can my vanilla MD4 NT2 format be *that* much faster than Alain's
> optimised one that reverses rounds? Something must be amiss.

Don't really know how that happened.
I can't reproduce it now.
With

$ ./john --list=build-info
Version: 1.7.9-jumbo-5+unstable
Build: linux-x86-sse2 OMP
Arch: 32-bit LE
$JOHN is ./
Rec file version: REC3
CHARSET_MIN: 32 (0x20)
CHARSET_MAX: 126 (0x7e)
CHARSET_LENGTH: 8
gcc version: 4.6.3

I get much smaller differences now (repeated several times, with similar
results):

$ ./john --test --format=nt
Benchmarking: NT MD4 [128/128 SSE2 + 32/32]... DONE
Raw:	5330K c/s real, 5277K c/s virtual
$ ./john --test --format=nt2
Benchmarking: NT MD4 [128/128 SSE2 intrinsics 12x]... DONE
Raw:	6746K c/s real, 6814K c/s virtual


And with
$ ./john --list=build-info
Version: 1.7.9-jumbo-5+unstable
Build: linux-x86-sse2i
Arch: 32-bit LE
$JOHN is ./
Rec file version: REC3
CHARSET_MIN: 32 (0x20)
CHARSET_MAX: 126 (0x7e)
CHARSET_LENGTH: 8
gcc version: 4.6.3

I get:

$ ./john --test --format=nt
Benchmarking: NT MD4 [128/128 SSE2 + 32/32]... DONE
Raw:	6877K c/s real, 6946K c/s virtual

$ ./john --test --format=nt2
Benchmarking: NT MD4 [128/128 SSE2 intrinsics 12x]... DONE
Raw:	6318K c/s real, 6318K c/s virtual

$ uname -srvp
Linux 3.4.2-1.fc16.i686.PAE #1 SMP Thu Jun 14 20:53:38 UTC 2012 i686

The CPU is
Intel(R) Atom(TM) CPU N270   @ 1.60GHz
(single core with hyperthreading)


Frank

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