NAME

Bencher::Scenario::Ref::Util - Benchmark Ref::Util

VERSION

This document describes version 0.003 of Bencher::Scenario::Ref::Util (from Perl distribution Bencher-ScenarioBundle-Ref-Util), released on 2024-12-04.

SYNOPSIS

To run benchmark with default option:

% bencher -m Ref::Util

To run module startup overhead benchmark:

% bencher --module-startup -m Ref::Util

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.

Ref::Util 0.204

Scalar::Util 1.63

BENCHMARK PARTICIPANTS

  • is_arrayref (perl_code)

    Code template:

    no warnings "void"; state $ref = []; Ref::Util::is_arrayref($ref) for 1..1000
  • is_plain_arrayref (perl_code)

    Code template:

    no warnings "void"; state $ref = []; Ref::Util::is_plain_arrayref($ref) for 1..1000
  • ref(ARRAY) (perl_code)

    Code template:

    no warnings "void"; state $ref = []; ref($ref) eq "ARRAY" for 1..1000
  • reftype(ARRAY) (perl_code)

    Code template:

    no warnings "void"; state $ref = []; Scalar::Util::reftype($ref) eq "ARRAY" for 1..1000

BENCHMARK SAMPLE RESULTS

Sample benchmark #1

Run on: perl: v5.40.0, CPU: 12th Gen Intel(R) Core(TM) i7-1250U (10 cores), OS: GNU/Linux Debian version 12, OS kernel: Linux version 6.1.0-26-amd64.

Benchmark command (default options):

% bencher -m Ref::Util

Result formatted as table:

#table1#
+-------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| participant       | rate (/s) | time (μs) | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+-------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| reftype(ARRAY)    |     20100 |     49.8  |                 0.00% |               210.49% | 4.8e-08 |     136 |
| ref(ARRAY)        |     30700 |     32.6  |                53.02% |               102.91% | 3.2e-08 |     135 |
| is_plain_arrayref |     62000 |     16.1  |               209.05% |                 0.47% | 1.5e-08 |      22 |
| is_arrayref       |     62290 |     16.05 |               210.49% |                 0.00% | 9.5e-10 |      20 |
+-------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+

The above result formatted in Benchmark.pm style:

                       Rate  reftype(ARRAY)  ref(ARRAY)  is_plain_arrayref  is_arrayref 
 reftype(ARRAY)     20100/s              --        -34%               -67%         -67% 
 ref(ARRAY)         30700/s             52%          --               -50%         -50% 
 is_plain_arrayref  62000/s            209%        102%                 --           0% 
 is_arrayref        62290/s            210%        103%                 0%           -- 

Legends:
  is_arrayref: participant=is_arrayref
  is_plain_arrayref: participant=is_plain_arrayref
  ref(ARRAY): participant=ref(ARRAY)
  reftype(ARRAY): participant=reftype(ARRAY)

Sample benchmark #2

Benchmark command (benchmarking module startup overhead):

% bencher -m Ref::Util --module-startup

Result formatted as table:

#table2#
+---------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
| participant         | time (ms) | mod_overhead_time | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+---------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
| Ref::Util           |       7.6 |               4   |                 0.00% |               111.74% | 1.1e-05 |    9461 |
| Scalar::Util        |       7.2 |               3.6 |                 5.56% |               100.58% | 7.9e-06 |    9402 |
| perl -e1 (baseline) |       3.6 |               0   |               111.74% |                 0.00% | 3.5e-06 |    3802 |
+---------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+

The above result formatted in Benchmark.pm style:

                         Rate   R:U   S:U  perl -e1 (baseline) 
 R:U                  131.6/s    --   -5%                 -52% 
 S:U                  138.9/s    5%    --                 -50% 
 perl -e1 (baseline)  277.8/s  111%  100%                   -- 

Legends:
  R:U: mod_overhead_time=4 participant=Ref::Util
  S:U: mod_overhead_time=3.6 participant=Scalar::Util
  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.

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Bencher-ScenarioBundle-Ref-Util.

SOURCE

Source repository is at https://github.com/perlancar/perl-Bencher-ScenarioBundle-Ref-Util.

SEE ALSO

AUTHOR

perlancar <perlancar@cpan.org>

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, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.

COPYRIGHT AND LICENSE

This software is copyright (c) 2024 by perlancar <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.

BUGS

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

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.