/ 
Bencher-Scenarios-MathBigFloat-0.001
River stage one • 1 direct dependent • 1 total dependent
/ Bencher::Scenario::MathBigFloat::Multiply

NAME

Bencher::Scenario::MathBigFloat::Multiply - Benchmark multiplying 2 32 times (2^32)

VERSION

This document describes version 0.001 of Bencher::Scenario::MathBigFloat::Multiply (from Perl distribution Bencher-Scenarios-MathBigFloat), released on 2017-12-09.

SYNOPSIS

To run benchmark with default option:

% bencher -m MathBigFloat::Multiply

To run module startup overhead benchmark:

% bencher --module-startup -m MathBigFloat::Multiply

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.

Math::BigFloat 1.999808

BENCHMARK PARTICIPANTS

  • Math::BigFloat (perl_code)

    Code template:

    my $n = Math::BigFloat->new("1"); my $m = Math::BigFloat->new("2"); for (1..32) { $n->bmul($m) } $n->bstr

  • native (perl_code)

    Code template:

    my $n = 1; for (1..32) { $n *= 2 } $n

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.24.0, CPU: Intel(R) Core(TM) M-5Y71 CPU @ 1.20GHz (2 cores), OS: GNU/Linux LinuxMint version 18.2, OS kernel: Linux version 4.8.0-53-generic.

Benchmark with default options (bencher -m MathBigFloat::Multiply):

#table1#
+----------------+-----------+-----------+------------+---------+---------+
| participant    | rate (/s) | time (μs) | vs_slowest |  errors | samples |
+----------------+-----------+-----------+------------+---------+---------+
| Math::BigFloat |      1700 |     600   |          1 | 2.5e-06 |      20 |
| native         |    430000 |       2.4 |        260 | 3.3e-09 |      20 |
+----------------+-----------+-----------+------------+---------+---------+

Benchmark module startup overhead (bencher -m MathBigFloat::Multiply --module-startup):

#table2#
+---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+-----------+---------+
| participant         | proc_private_dirty_size (MB) | proc_rss_size (MB) | proc_size (MB) | time (ms) | mod_overhead_time (ms) | vs_slowest |  errors   | samples |
+---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+-----------+---------+
| Math::BigFloat      | 0.83                         | 4.2                | 16             |      75   |                   66.3 |        1   |   0.00046 |      20 |
| perl -e1 (baseline) | 6.3                          | 10                 | 22             |       8.7 |                    0   |        8.6 | 6.1e-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-Scenarios-MathBigFloat.

SOURCE

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

BUGS

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

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.