NAME Bencher::Scenario::DigestSHA1 - Benchmark Digest::SHA1 against Digest::SHA VERSION This document describes version 0.003 of Bencher::Scenario::DigestSHA1 (from Perl distribution Bencher-Scenario-DigestSHA1), released on 2017-07-10. SYNOPSIS To run benchmark with default option: % bencher -m DigestSHA1 To run module startup overhead benchmark: % bencher --module-startup -m DigestSHA1 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::SHA1 2.13 Digest::SHA 5.96 BENCHMARK PARTICIPANTS * Digest::SHA1 (perl_code) Code template: my $ctx = Digest::SHA1->new; open my $fh, "<", ; $ctx->addfile($fh); $ctx->hexdigest * Digest::SHA (perl_code) Code template: my $ctx = Digest::SHA->new(1); open my $fh, "<", ; $ctx->addfile($fh); $ctx->hexdigest BENCHMARK DATASETS * 30M_file SAMPLE BENCHMARK RESULTS Run on: perl: *v5.26.0*, CPU: *Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz (4 cores)*, OS: *GNU/Linux Debian version 8.0*, OS kernel: *Linux version 3.16.0-4-amd64*. Benchmark with default options ("bencher -m DigestSHA1"): #table1# +--------------+-----------+-----------+------------+---------+---------+ | participant | rate (/s) | time (ms) | vs_slowest | errors | samples | +--------------+-----------+-----------+------------+---------+---------+ | Digest::SHA1 | 5.92 | 169 | 1 | 0.00011 | 6 | | Digest::SHA | 9.8 | 100 | 1.7 | 0.00036 | 6 | +--------------+-----------+-----------+------------+---------+---------+ Benchmark module startup overhead ("bencher -m DigestSHA1 --module-startup"): #table2# +---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+----------+---------+ | participant | proc_private_dirty_size (MB) | proc_rss_size (MB) | proc_size (MB) | time (ms) | mod_overhead_time (ms) | vs_slowest | errors | samples | +---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+----------+---------+ | Digest::SHA | 0.828 | 4.2 | 20.1 | 13.8 | 8.4 | 1 | 1.2e-05 | 6 | | Digest::SHA1 | 1.5 | 5 | 25 | 11 | 5.6 | 1.2 | 0.0001 | 6 | | perl -e1 (baseline) | 1.2 | 4.6 | 22 | 5.4 | 0 | 2.5 | 5.4e-05 | 6 | +---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+----------+---------+ To display as an interactive HTML table on a browser, you can add option "--format html+datatables". BENCHMARK NOTES Digest::SHA is faster than Digest::SHA1, so in general there is no reason to use Digest::SHA1 over Digest::SHA (core module, more up-to-date, support more algorithms). HOMEPAGE Please visit the project's homepage at . SOURCE Source repository is at . 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. SEE ALSO See Bencher::Scenarios::DigestSHA for more SHA-related benchmarks. AUTHOR perlancar COPYRIGHT AND LICENSE This software is copyright (c) 2017 by perlancar@cpan.org. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.