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Date: Fri, 29 Jun 2012 17:29:26 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: sip_fmt_plug.c: non-optimal max_keys_per_crypt for non-OpenMP
Dhiru -
Here's what I observe for non-OpenMP vs. OpenMP builds of
john-1.7.9-jumbo-6 on FX-8120:
Number of benchmarks: 202
Minimum: 0.76235 real, 0.09553 virtual
Maximum: 30.51791 real, 3.81904 virtual
Median: 1.01479 real, 0.98287 virtual
Median absolute deviation: 0.02747 real, 0.03514 virtual
Geometric mean: 1.71441 real, 0.77454 virtual
Geometric standard deviation: 2.08823 real, 1.50966 virtual
The 30x is for:
Ratio: 30.51791 real, 3.81904 virtual SIP MD5:Raw
This is reproducible. I guess the poor speed for non-OpenMP is because
the key count is too low (just 1, actually). We need to tune it.
Alexander
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