50 lines
1.9 KiB
Groff
50 lines
1.9 KiB
Groff
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.TH relbench "8" "October 2013" "Lars Vogdt" "John"
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.SH NAME
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relbench \- John the Ripper benchmark output comparison tool
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.SH SYNOPSIS
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.B relbench <BENCHMARK-FILE-1> <BENCHMARK-FILE-2>
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.br
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.SH DESCRIPTION
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.B relbench
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is a Perl script to compare two "john --test" benchmark runs, such as for
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different machines, "make" targets, C compilers, optimization options, or/and
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versions of John the Ripper.
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To use it, redirect the output of each "john --test" run to a file, then run the
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script on the two files.
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Most values output by the script indicate relative performance seen on the
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second benchmark run as compared to the first one, with the value of 1.0
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indicating no change, values higher than 1.0 indicating speedup, and values
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lower than 1.0 indicating slowdown. Specifically, the script outputs the
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minimum, maximum, median, and geometric mean for the speedup (or slowdown) seen
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across the many individual benchmarks that "john --test" performs.
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It also outputs the median absolute deviation (relative to the median) and
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geometric standard deviation (relative to the geometric mean). Of these two, a
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median absolute deviation of 0.0 would indicate that no deviation from the
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median is prevalent, whereas a geometric standard deviation of 1.0 would
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indicate that all benchmarks were sped up or slowed down by the exact same
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ratio or their speed remained unchanged.
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In practice, these values will tend to deviate from 0.0 and 1.0, respectively.
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.SH OPTIONS
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.TP
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\fBBENCHMARK-FILE-1\fR
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File containing benchmark results from the first test run via \fBjohn \-\-test\fR.
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.TP
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\fBBENCHMARK-FILE-2\fR
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File containing benchmark results from the second test run via \fBjohn \-\-test\fR.
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.SH FILES
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.TP
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.IP /usr/sbin/relbench
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.SH AUTHOR
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John the Ripper password cracker is free and Open Source software.
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Copyright (c) 2011 by Solar Designer.
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This manual page was written by Lars Vogdt for the openSUSE operating system
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(but it may be freely used, modified, and redistributed by others).
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