NAME
    Bencher::Scenario::Hash::Unique - Benchmark Hash::Unique

VERSION
    This document describes version 0.002 of Bencher::Scenario::Hash::Unique
    (from Perl distribution Bencher-Scenario-Hash-Unique), released on
    2022-05-07.

SYNOPSIS
    To run benchmark with default option:

     % bencher -m Hash::Unique

    To run module startup overhead benchmark:

     % bencher --module-startup -m Hash::Unique

    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

BENCHMARK SAMPLE RESULTS
  Sample benchmark #1
    Run on: perl: *v5.34.0*, 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 command (default options):

     % bencher -m Hash::Unique

    Result formatted as table:

     #table1#
     +--------------+---------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
     | participant  | dataset       | rate (/s) | time (μs) | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
     +--------------+---------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
     | Hash::Unique | 10elems-3keys |    147825 |   6.76475 |                 0.00% |               596.87% | 4.9e-12 |      20 |
     | ad-hoc       | 10elems-3keys |    222976 |   4.48479 |                50.84% |               362.00% |   0     |      20 |
     | Hash::Unique | 2elems-1key   |    632840 |   1.58018 |               328.10% |                62.78% |   0     |      20 |
     | ad-hoc       | 2elems-1key   |   1030100 |   0.97073 |               596.87% |                 0.00% | 5.8e-12 |      20 |
     +--------------+---------------+-----------+-----------+-----------------------+-----------------------+---------+---------+

    The above result formatted in Benchmark.pm style:

                                       Rate  Hash::Unique 10elems-3keys  ad-hoc 10elems-3keys  Hash::Unique 2elems-1key  ad-hoc 2elems-1key 
      Hash::Unique 10elems-3keys   147825/s                          --                  -33%                      -76%                -85% 
      ad-hoc 10elems-3keys         222976/s                         50%                    --                      -64%                -78% 
      Hash::Unique 2elems-1key     632840/s                        328%                  183%                        --                -38% 
      ad-hoc 2elems-1key          1030100/s                        596%                  362%                       62%                  -- 
 
     Legends:
       Hash::Unique 10elems-3keys: dataset=10elems-3keys participant=Hash::Unique
       Hash::Unique 2elems-1key: dataset=2elems-1key participant=Hash::Unique
       ad-hoc 10elems-3keys: dataset=10elems-3keys participant=ad-hoc
       ad-hoc 2elems-1key: dataset=2elems-1key participant=ad-hoc

  Sample benchmark #2
    Benchmark command (benchmarking module startup overhead):

     % bencher -m Hash::Unique --module-startup

    Result formatted as table:

     #table2#
     +---------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
     | participant         | time (ms) | mod_overhead_time | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
     +---------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
     | Hash::Unique        |      7    |              2.38 |                 0.00% |                59.30% | 9.8e-05 |      22 |
     | perl -e1 (baseline) |      4.62 |              0    |                59.30% |                 0.00% | 1.8e-06 |      20 |
     +---------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+

    The above result formatted in Benchmark.pm style:

                              Rate  H:U  perl -e1 (baseline) 
      H:U                  142.9/s   --                 -34% 
      perl -e1 (baseline)  216.5/s  51%                   -- 
 
     Legends:
       H:U: mod_overhead_time=2.38 participant=Hash::Unique
       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-Scenario-Hash-Unique>.

SOURCE
    Source repository is at
    <https://github.com/perlancar/perl-Bencher-Scenario-Hash-Unique>.

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

COPYRIGHT AND LICENSE
    This software is copyright (c) 2022, 2017 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-Scenario-Hash
    -Unique>

    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.