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Date: Sun, 18 Dec 2011 18:48:33 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: 1.7.9-jumbo

On Fri, Dec 16, 2011 at 08:38:26PM +0100, magnum wrote:
> I think the main theme is "Added Intrinsics". They were added to a lot 
> of formats that were formerly running generic code on 64-bit builds. In 
> many cases, a 32-bit build was faster than a 64-bit one, I believe that 
> is no longer the case for any format.
> 
> Other than that, there is almost nothing apart from performance that a 
> user will notice. A couple new formats perhaps. No new functionality 
> that I can recall. Tons of tiny tweaks, little performance boosts here 
> and there and bug fixes. Dynamic had a makeover too.
> 
> I'm not sure you need to include more than that in a summary. Re-phrase 
> as you like :)

I am still trying to come up with a description of the changes in
1.7.9-jumbo-5 vs. 1.7.8-jumbo-8.  Here's what relbench sees (non-OpenMP,
linux-x86-64i, the older version is "file 1"):

Only in file 1: Netscape LDAP SSHA:Only one salt
Only in file 1: PIX MD5:Raw
Only in file 1: dynamic_1008 md5($p.$s) [joomla]:Only one salt
Only in file 1: dynamic_1008 md5($p.$s) [joomla]:Many salts
Only in file 1: OpenLDAP SSHA:Many salts
Only in file 1: Netscape LDAP SSHA:Many salts
Only in file 1: OpenLDAP SSHA:Only one salt
Only in file 2: Raw SHA:Raw
Only in file 2: PIX MD5:Many salts
Only in file 2: dynamic_1008 md5($p.$s) [RADIUS User-Password]:Many salts
Only in file 2: dynamic_1009 md5($s.$p) [RADIUS Responses]:Only one salt
Only in file 2: PIX MD5:Only one salt
Only in file 2: dynamic_1008 md5($p.$s) [RADIUS User-Password]:Only one salt
Only in file 2: NT v2:Raw
Only in file 2: dynamic_1009 md5($s.$p) [RADIUS Responses]:Many salts
Number of benchmarks:           153
Minimum:                        0.81602 real, 0.81602 virtual
Maximum:                        6.70472 real, 6.63777 virtual
Median:                         1.00484 real, 1.00384 virtual
Median absolute deviation:      0.01990 real, 0.02303 virtual
Geometric mean:                 1.10899 real, 1.10841 virtual
Geometric standard deviation:   1.33332 real, 1.33278 virtual

I need some explanation on what has replaced the old dynamic_1008
(Joomla) and the SSHA formats.

Also, someone could want to identify the format that became 18% slower
and see if this is reproducible and if it can be avoided (in a future
version).

Thanks,

Alexander

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