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Bencher-Scenarios-Perl-0.051
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NAME

Bencher::Scenario::Perl::Hash

VERSION

This document describes version 0.051 of Bencher::Scenario::Perl::Hash (from Perl distribution Bencher-Scenarios-Perl), released on 2021-07-03.

SYNOPSIS

To run benchmark with default option:

% bencher -m Perl::Hash

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.

BENCHMARK PARTICIPANTS

  • access (perl_code)

    Code template:

    no warnings "void"; state $hash = <hash>; for (<firstkey>..<lastkey>) { $hash->{$_} }

  • delete (perl_code)

    Code template:

    my $hash = <hash>; for (<firstkey>..<lastkey>) { delete $hash->{$_} }

  • insert (perl_code)

    Code template:

    my $hash = {}; for (<firstkey>..<lastkey>) { $hash->{$_} = 0 }

  • access (perl_code)

    Code template:

    no warnings "void"; state $hash = <hash>; for (<firstkey>..<lastkey>) { $hash->{$_} }

  • delete (perl_code)

    Code template:

    my $hash = <hash>; for (<firstkey>..<lastkey>) { delete $hash->{$_} }

  • insert (perl_code)

    Code template:

    my $hash = {}; for (<firstkey>..<lastkey>) { $hash->{$_} = 0 }

BENCHMARK DATASETS

  • h100

    A 100-key ("001".."100") hash.

  • h1k

    A 1k-key ("0001".."1000") hash.

  • h100

    A 100-key ("001".."100") hash.

  • h1k

    A 1k-key ("0001".."1000") hash.

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.30.2, CPU: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (4 cores), OS: GNU/Linux LinuxMint version 19, OS kernel: Linux version 5.3.0-68-generic.

Benchmark with default options (bencher -m Perl::Hash):

#table1#
+-------------+---------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| participant | dataset | rate (/s) | time (μs) | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+-------------+---------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| insert      | h1k     |   5950    | 168       |                 0.00% |              2912.22% | 7.4e-08 |     167 |
| delete      | h1k     |   6450    | 155       |                 8.40% |              2678.69% | 1.5e-07 |      38 |
| access      | h1k     |  17615.61 |  56.76784 |               196.29% |               916.65% | 5.5e-12 |      20 |
| delete      | h100    |  78500    |  12.7     |              1221.03% |               128.02% | 1.3e-08 |      89 |
| insert      | h100    |  83300    |  12       |              1300.55% |               115.07% |   1e-08 |      20 |
| access      | h100    | 179090    |   5.5838  |              2912.22% |                 0.00% | 4.7e-12 |      20 |
+-------------+---------+-----------+-----------+-----------------------+-----------------------+---------+---------+

To display as an interactive HTML table on a browser, you can add option --format html+datatables.

Run on: perl: v5.30.2, CPU: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (4 cores), OS: GNU/Linux LinuxMint version 19, OS kernel: Linux version 5.3.0-68-generic.

Benchmark with bencher -m Perl::Hash --multiperl:

#table1#
+-------------+---------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| participant | dataset | rate (/s) | time (μs) | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+-------------+---------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| insert      | h1k     |      6260 |    160    |                 0.00% |              3254.25% | 1.4e-07 |     179 |
| delete      | h1k     |      6980 |    143    |                11.56% |              2906.68% | 1.4e-07 |      46 |
| access      | h1k     |     21000 |     47.5  |               236.38% |               897.16% | 1.3e-08 |      20 |
| insert      | h100    |     60500 |     16.5  |               867.26% |               246.78% | 1.4e-08 |      40 |
| delete      | h100    |     81900 |     12.2  |              1208.90% |               156.27% | 1.2e-08 |      24 |
| access      | h100    |    210000 |      4.77 |              3254.25% |                 0.00% | 1.7e-09 |      20 |
+-------------+---------+-----------+-----------+-----------------------+-----------------------+---------+---------+

To display as an interactive HTML table on a browser, you can add option --format html+datatables.

BENCHMARK NOTES

cperl (tested version: 5.22.1) and stableperl (tested version: 5.22.0) is around 15-20% faster than perl 5.22.1.

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) 2021, 2019, 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.