NAME Bencher::Scenario::Digest::MD5 - Benchmark Digest::MD5 against md5sum utility VERSION This document describes version 0.005 of Bencher::Scenario::Digest::MD5 (from Perl distribution Bencher-Scenario-Digest-MD5), released on 2022-03-19. SYNOPSIS To run benchmark with default option: % bencher -m Digest::MD5 To run module startup overhead benchmark: % bencher --module-startup -m Digest::MD5 For more options (dump scenario, list/include/exclude/add participants, list/include/exclude/add datasets, etc), see bencher or run "bencher --help". DESCRIPTION Packaging a benchmark script as a Bencher scenario makes it convenient to include/exclude/add participants/datasets (either via CLI or Perl code), send the result to a central repository, among others . See Bencher and bencher (CLI) for more details. BENCHMARKED MODULES Version numbers shown below are the versions used when running the sample benchmark. Digest::MD5 2.58 BENCHMARK PARTICIPANTS * md5sum (perl_code) Code template: my $cmd = "md5sum ".String::ShellQuote::shell_quote(); my $res = `$cmd`; $res =~ s/\s.+//s; $res * Digest::MD5 (perl_code) Code template: my $ctx = Digest::MD5->new; open my $fh, "<", ; $ctx->addfile($fh); $ctx->hexdigest BENCHMARK DATASETS * 30M_file SAMPLE BENCHMARK RESULTS Run on: perl: *v5.34.0*, CPU: *Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (2 cores)*, OS: *GNU/Linux Ubuntu version 20.04*, OS kernel: *Linux version 5.4.0-91-generic*. Benchmark with default options ("bencher -m Digest::MD5"): #table1# +-------------+-----------+-----------+-----------------------+-----------------------+---------+---------+ | participant | rate (/s) | time (ms) | pct_faster_vs_slowest | pct_slower_vs_fastest | errors | samples | +-------------+-----------+-----------+-----------------------+-----------------------+---------+---------+ | md5sum | 15.7 | 63.5 | 0.00% | 4.39% | 4.3e-05 | 7 | | Digest::MD5 | 16.4 | 60.9 | 4.39% | 0.00% | 4.8e-05 | 7 | +-------------+-----------+-----------+-----------------------+-----------------------+---------+---------+ Formatted as Benchmark.pm result: Rate md5sum Digest::MD5 md5sum 15.7/s -- -4% Digest::MD5 16.4/s 4% -- Legends: Digest::MD5: participant=Digest::MD5 md5sum: participant=md5sum Benchmark module startup overhead ("bencher -m Digest::MD5 --module-startup"): #table2# +---------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+ | participant | time (ms) | mod_overhead_time | pct_faster_vs_slowest | pct_slower_vs_fastest | errors | samples | +---------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+ | Digest::MD5 | 9.5 | 3.4 | 0.00% | 55.21% | 1.3e-05 | 6 | | perl -e1 (baseline) | 6.1 | 0 | 55.21% | 0.00% | 1.3e-05 | 7 | +---------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+ Formatted as Benchmark.pm result: Rate D:M perl -e1 (baseline) D:M 105.3/s -- -35% perl -e1 (baseline) 163.9/s 55% -- Legends: D:M: mod_overhead_time=3.4 participant=Digest::MD5 perl -e1 (baseline): mod_overhead_time=0 participant=perl -e1 (baseline) To display as an interactive HTML table on a browser, you can add option "--format html+datatables". BENCHMARK NOTES Since they are both implemented in C, the speeds of both are roughly the same. HOMEPAGE Please visit the project's homepage at . SOURCE Source repository is at . AUTHOR perlancar CONTRIBUTING To contribute, you can send patches by email/via RT, or send pull requests on GitHub. Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via: % prove -l If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla plugin and/or Pod::Weaver::Plugin. Any additional steps required beyond that are considered a bug and can be reported to me. COPYRIGHT AND LICENSE This software is copyright (c) 2022, 2017, 2016 by perlancar . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. BUGS Please report any bugs or feature requests on the bugtracker website When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.