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NAME

Bencher::Scenario::Perl::Startup - Benchmark startup time of perls

VERSION

This document describes version 0.02 of Bencher::Scenario::Perl::Startup (from Perl distribution Bencher-Scenarios-Perl), released on 2016-01-07.

SYNOPSIS

To run benchmark with default option:

 % bencher -m Perl::Startup

For more options (dump scenario, list/include/exclude/add participants, list/include/exclude/add datasets, etc), see bencher or run bencher --help.

BENCHMARK PARTICIPANTS

  • perl-5.10.1 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.10.1/bin/perl -e1
  • perl-5.10.1 -E1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.10.1/bin/perl -E1
  • perl-5.12.5 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.12.5/bin/perl -e1
  • perl-5.12.5 -E1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.12.5/bin/perl -E1
  • perl-5.14.4 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.14.4/bin/perl -e1
  • perl-5.14.4 -E1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.14.4/bin/perl -E1
  • perl-5.16.3 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.16.3/bin/perl -e1
  • perl-5.16.3 -E1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.16.3/bin/perl -E1
  • perl-5.18.4 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.18.4/bin/perl -e1
  • perl-5.18.4 -E1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.18.4/bin/perl -E1
  • perl-5.20.3 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.20.3/bin/perl -e1
  • perl-5.20.3 -E1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.20.3/bin/perl -E1
  • perl-5.22.0 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.22.0/bin/perl -e1
  • perl-5.22.0 -E1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.22.0/bin/perl -E1
  • perl-5.22.1 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.22.1/bin/perl -e1
  • perl-5.22.1 -E1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.22.1/bin/perl -E1
  • perl-5.6.2 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.6.2/bin/perl -e1
  • perl-5.8.9 -e1 (command)

    Command line:

     /home/s1/perl5/perlbrew/perls/perl-5.8.9/bin/perl -e1

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.22.0, 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 option:

 +-----+-----------------+------+--------+---------+---------+
 | seq | name            | rate | time   | errors  | samples |
 +-----+-----------------+------+--------+---------+---------+
 | 15  | perl-5.22.1 -E1 | 183  | 5.48ms | 5.4e-06 | 915     |
 | 13  | perl-5.22.0 -E1 | 186  | 5.39ms | 5.3e-06 | 679     |
 | 11  | perl-5.20.3 -E1 | 186  | 5.37ms | 5.3e-06 | 1180    |
 | 9   | perl-5.18.4 -E1 | 191  | 5.22ms | 5.2e-06 | 905     |
 | 7   | perl-5.16.3 -E1 | 193  | 5.19ms | 5.2e-06 | 1060    |
 | 5   | perl-5.14.4 -E1 | 196  | 5.1ms  | 5.1e-06 | 1158    |
 | 3   | perl-5.12.5 -E1 | 198  | 5.06ms | 5e-06   | 1040    |
 | 1   | perl-5.10.1 -E1 | 203  | 4.93ms | 4.8e-06 | 1301    |
 | 14  | perl-5.22.1 -e1 | 220  | 4.55ms | 4.4e-06 | 1542    |
 | 12  | perl-5.22.0 -e1 | 220  | 4.54ms | 4.4e-06 | 1680    |
 | 10  | perl-5.20.3 -e1 | 222  | 4.5ms  | 4.4e-06 | 1402    |
 | 6   | perl-5.16.3 -e1 | 225  | 4.44ms | 4.4e-06 | 1541    |
 | 8   | perl-5.18.4 -e1 | 226  | 4.43ms | 4.4e-06 | 1332    |
 | 4   | perl-5.14.4 -e1 | 227  | 4.41ms | 4.3e-06 | 1335    |
 | 2   | perl-5.12.5 -e1 | 228  | 4.38ms | 4.4e-06 | 1219    |
 | 0   | perl-5.10.1 -e1 | 232  | 4.31ms | 4.2e-06 | 1207    |
 | 17  | perl-5.8.9 -e1  | 232  | 4.3ms  | 4.3e-06 | 948     |
 | 16  | perl-5.6.2 -e1  | 247  | 4.04ms | 3.9e-06 | 1184    |
 +-----+-----------------+------+--------+---------+---------+

DESCRIPTION

Conclusion: in general newer versions of perl has larger startup overhead than previous ones. If startup overhead is important to you, use -e instead of -E unless necessary.

SEE ALSO

Bencher::Scenario::Interpreters

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Bencher-Scenarios-Perl.

SOURCE

Source repository is at https://github.com/perlancar/perl-Bencher-Scenarios-Perl.

BUGS

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

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) 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.