NAME

Bencher::Scenario::HashBuilding - Benchmark building hash by adding one key at a time vs building via array

VERSION

This document describes version 0.001 of Bencher::Scenario::HashBuilding (from Perl distribution Bencher-Scenario-HashBuilding), released on 2016-09-03.

SYNOPSIS

To run benchmark with default option:

% bencher -m HashBuilding

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

BENCHMARK PARTICIPANTS

• one-key-at-a-time (perl_code)

  Code template:

  state $keys=<keys>; my $hash = {}; for my $key (@$keys) { $hash->{$key} = 1 }; $hash

• via-array (perl_code)

  Code template:

  state $keys=<keys>; my $hash = {}; my $ary = []; for my $key (@$keys) { push @$ary, $key, 1 }; $hash = { @$ary }

BENCHMARK DATASETS

• keys=1

• keys=10

• keys=100

• keys=1000

• keys=10000

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.22.1, 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 HashBuilding):

#table1#
+-------------------+------------+-----------+-------------+------------+---------+---------+
| participant       | dataset    | rate (/s) |   time (ms) | vs_slowest |  errors | samples |
+-------------------+------------+-----------+-------------+------------+---------+---------+
| via-array         | keys=10000 |       285 | 3.51        |      1     | 1.6e-06 |      21 |
| one-key-at-a-time | keys=10000 |       500 | 2           |      1.7   | 2.5e-06 |      20 |
| via-array         | keys=1000  |      3020 | 0.332       |     10.6   | 2.7e-07 |      20 |
| one-key-at-a-time | keys=1000  |      5800 | 0.17        |     21     | 2.1e-07 |      20 |
| via-array         | keys=100   |     30000 | 0.033       |    110     | 5.3e-08 |      20 |
| one-key-at-a-time | keys=100   |     68500 | 0.0146      |    240     | 6.7e-09 |      20 |
| via-array         | keys=10    |    276692 | 0.00361412  |    970.282 |   0     |      22 |
| one-key-at-a-time | keys=10    |    628200 | 0.001592    |   2203     | 3.4e-11 |      20 |
| via-array         | keys=1     |   1215950 | 0.000822402 |   4264     |   0     |      20 |
| one-key-at-a-time | keys=1     |   2484000 | 0.0004027   |   8709     | 9.6e-12 |      20 |
+-------------------+------------+-----------+-------------+------------+---------+---------+

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.

HOMEPAGE

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

SOURCE

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

BUGS

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

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.