NAME

Bencher::Scenario::HashUnique - Benchmark Hash::Unique

VERSION

This document describes version 0.001 of Bencher::Scenario::HashUnique (from Perl distribution Bencher-Scenario-HashUnique), released on 2017-06-07.

SYNOPSIS

To run benchmark with default option:

 % bencher -m HashUnique

To run module startup overhead benchmark:

 % bencher --module-startup -m HashUnique

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.

Hash::Unique 0.06

BENCHMARK PARTICIPANTS

• Hash::Unique (perl_code)

  Code template:

   [ Hash::Unique->get_unique_hash(<array>, <key>) ]

• ad-hoc (perl_code)

  Code template:

   my @res; my %seen; for (@{ <array> }) { push @res, $_ unless $seen{ $_->{ <key> } }++ }; \@res

BENCHMARK DATASETS

• 2elems-1key

• 10elems-3keys

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.24.0, 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 options (bencher -m HashUnique):

 #table1#
 +--------------+---------------+-----------+-----------+------------+---------+---------+
 | participant  | dataset       | rate (/s) | time (μs) | vs_slowest |  errors | samples |
 +--------------+---------------+-----------+-----------+------------+---------+---------+
 | Hash::Unique | 10elems-3keys |     87600 |   11.4    |     1      | 3.3e-09 |      20 |
 | ad-hoc       | 10elems-3keys |    140540 |    7.1156 |     1.6044 | 4.6e-11 |      20 |
 | Hash::Unique | 2elems-1key   |    330000 |    3      |     3.7    | 3.3e-09 |      21 |
 | ad-hoc       | 2elems-1key   |    610000 |    1.6    |     7      | 3.3e-09 |      20 |
 +--------------+---------------+-----------+-----------+------------+---------+---------+

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

 #table2#
 +---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+---------+---------+
 | participant         | proc_private_dirty_size (kB) | proc_rss_size (MB) | proc_size (MB) | time (ms) | mod_overhead_time (ms) | vs_slowest |  errors | samples |
 +---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+---------+---------+
 | Hash::Unique        | 840                          | 4.1                | 20             |       8.2 |                    2.9 |        1   | 3.5e-05 |      21 |
 | perl -e1 (baseline) | 852                          | 4.1                | 20             |       5.3 |                    0   |        1.5 | 3.7e-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-HashUnique.

SOURCE

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

BUGS

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

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.

cpanm Bencher::Scenario::HashUnique

perl -MCPAN -e shell
install Bencher::Scenario::HashUnique