/ 
Bencher-Scenario-DigestSHA1-0.001
River stage one • 1 direct dependent • 1 total dependent
/ Bencher::Scenario::DigestSHA1

NAME

Bencher::Scenario::DigestSHA1 - Benchmark Digest::SHA1 against Digest::SHA

VERSION

This document describes version 0.001 of Bencher::Scenario::DigestSHA1 (from Perl distribution Bencher-Scenario-DigestSHA1), released on 2016-11-21.

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 5.95

BENCHMARK PARTICIPANTS

  • Digest::SHA1 (perl_code)

    Code template:

    my $ctx = Digest::SHA1->new; open my $fh, "<", <filename>; $ctx->addfile($fh); $ctx->hexdigest

  • Digest::SHA (perl_code)

    Code template:

    my $ctx = Digest::SHA->new(1); open my $fh, "<", <filename>; $ctx->addfile($fh); $ctx->hexdigest

BENCHMARK DATASETS

  • 30M_file

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.24.0, CPU: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (4 cores), OS: GNU/Linux Debian version 8.5, 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 |      8.96 |     112   |       1    | 1.3e-05 |       7 |
| Digest::SHA  |     15.8  |      63.2 |       1.77 | 1.6e-05 |       6 |
+--------------+-----------+-----------+------------+---------+---------+

Benchmark module startup overhead (bencher -m DigestSHA1 --module-startup):

#table2#
+---------------------+-----------+------------------------+------------+-----------+---------+
| participant         | time (ms) | mod_overhead_time (ms) | vs_slowest |  errors   | samples |
+---------------------+-----------+------------------------+------------+-----------+---------+
| Digest::SHA         |       8   |                    5.5 |        1   |   0.00011 |       6 |
| Digest::SHA1        |       6   |                    3.5 |        1   | 6.8e-05   |       7 |
| perl -e1 (baseline) |       2.5 |                    0   |        3.3 | 1.1e-05   |       6 |
+---------------------+-----------+------------------------+------------+-----------+---------+

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 https://metacpan.org/release/Bencher-Scenario-DigestSHA1.

SOURCE

Source repository is at https://github.com/perlancar/perl-Bencher-Scenario-DigestSHA1.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Bencher-Scenario-DigestSHA1

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 <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2016 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.