NAME

Bencher::Scenario::IntValidation - Which method of checking for integer is fastest in Perl?

VERSION

This document describes version 0.002 of Bencher::Scenario::IntValidation (from Perl distribution Bencher-Scenario-IntValidation), released on 2017-01-25.

SYNOPSIS

To run benchmark with default option:

 % bencher -m IntValidation

To run module startup overhead benchmark:

 % bencher --module-startup -m IntValidation

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.

Scalar::Util::Numeric 0.40

Scalar::Util::Numeric::PP 0.04

BENCHMARK PARTICIPANTS

  • regex (perl_code)

    Code template:

     <data> =~ /\A-?[0-9]+\z/
  • SUN::isint (perl_code)

    Function call template:

     Scalar::Util::Numeric::isint(<data>)
  • SUN::PP::isint (perl_code)

    Function call template:

     Scalar::Util::Numeric::PP::isint(<data>)

BENCHMARK DATASETS

  • [0,1,-1,"foo"]

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.24.0, CPU: Intel(R) Core(TM) M-5Y71 CPU @ 1.20GHz (2 cores), OS: GNU/Linux LinuxMint version 17.3, OS kernel: Linux version 3.19.0-32-generic.

Benchmark with default options (bencher -m IntValidation):

 #table1#
 +----------------+----------+-----------+-----------+------------+---------+---------+
 | participant    | arg_data | rate (/s) | time (ns) | vs_slowest |  errors | samples |
 +----------------+----------+-----------+-----------+------------+---------+---------+
 | SUN::PP::isint | -1       |   1800000 |     570   |      1     | 6.2e-10 |      20 |
 | SUN::PP::isint | 1        |   1874000 |     533.6 |      1.064 | 4.5e-11 |      20 |
 | SUN::PP::isint | 0        |   2000000 |     501   |      1.13  | 1.4e-10 |      24 |
 | SUN::PP::isint | foo      |   2420000 |     413   |      1.38  | 1.5e-10 |      29 |
 | SUN::isint     | -1       |   5100000 |     196   |      2.89  |   1e-10 |      20 |
 | regex          | -1       |   5602000 |     178.5 |      3.181 | 1.1e-11 |      20 |
 | regex          | 0        |   5950000 |     168   |      3.38  | 1.1e-10 |      24 |
 | regex          | 1        |   5970000 |     168   |      3.39  | 1.1e-10 |      20 |
 | regex          | foo      |   6690000 |     149   |      3.8   | 3.4e-11 |      20 |
 | SUN::isint     | foo      |  12000000 |      86   |      6.6   | 1.9e-10 |      20 |
 | SUN::isint     | 0        |  12000000 |      83   |      6.9   | 1.5e-10 |      25 |
 | SUN::isint     | 1        |  13000000 |      76   |      7.4   | 3.1e-10 |      20 |
 +----------------+----------+-----------+-----------+------------+---------+---------+

Benchmark module startup overhead (bencher -m IntValidation --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 |
 +---------------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+---------+---------+
 | Scalar::Util::Numeric     | 1.2                          | 4.6                | 18             |      11   |                    5.3 |        1   | 5.9e-05 |      20 |
 | Scalar::Util::Numeric::PP | 0.95                         | 4.4                | 16             |       9   |                    3.3 |        1.2 |   4e-05 |      20 |
 | perl -e1 (baseline)       | 0.82                         | 4.1                | 16             |       5.7 |                    0   |        2   | 1.7e-05 |      20 |
 +---------------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+---------+---------+

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-Scenario-IntValidation.

SOURCE

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

BUGS

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

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.

AUTHOR

perlancar <perlancar@cpan.org>

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.