NAME Bencher::Scenario::NormalRandom - Benchmark generating normally distributed random numbers VERSION This document describes version 0.002 of Bencher::Scenario::NormalRandom (from Perl distribution Bencher-Scenario-NormalRandom), released on 2018-09-03. SYNOPSIS To run benchmark with default option: % bencher -m NormalRandom To run module startup overhead benchmark: % bencher --module-startup -m NormalRandom For more options (dump scenario, list/include/exclude/add participants, list/include/exclude/add datasets, etc), see bencher or run "bencher --help". DESCRIPTION Each participant generates 1000 random numbers that are normally distributed. If a module accepts a range, we use [0, 1]. If a module accepts distribution parameters mean and standard deviation, we use 0.5 and 0.25 respectively. 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::Random::GaussianRange Math::Random::NormalDistribution 0.01 Math::Random::OO::Normal 0.22 BENCHMARK PARTICIPANTS * Math::Random::GaussianRange (perl_code) Code template: Math::Random::GaussianRange::generate_normal_range({min=>0, max=>1, n=>1000, round=>0}) * Math::Random::NormalDistribution (perl_code) Code template: my $gen = Math::Random::NormalDistribution::rand_nd_generator(0.5, 0.25); [map {$gen->()} 1..1000] * Math::Random::OO::Normal (perl_code) Code template: my $oo = Math::Random::OO::Normal->new(0.5, 0.25); [map {$oo->next} 1..1000] SAMPLE BENCHMARK RESULTS Run on: perl: *v5.26.1*, CPU: *Intel(R) Core(TM) M-5Y71 CPU @ 1.20GHz (2 cores)*, OS: *GNU/Linux LinuxMint version 18.3*, OS kernel: *Linux version 4.10.0-38-generic*. Benchmark with default options ("bencher -m NormalRandom"): #table1# +----------------------------------+-----------+-----------+------------+---------+---------+ | participant | rate (/s) | time (ms) | vs_slowest | errors | samples | +----------------------------------+-----------+-----------+------------+---------+---------+ | Math::Random::OO::Normal | 345 | 2.9 | 1 | 1.8e-06 | 20 | | Math::Random::GaussianRange | 1300 | 0.77 | 3.8 | 9.1e-07 | 20 | | Math::Random::NormalDistribution | 2260 | 0.442 | 6.56 | 2.1e-07 | 20 | +----------------------------------+-----------+-----------+------------+---------+---------+ Benchmark module startup overhead ("bencher -m NormalRandom --module-startup"): #table2# +----------------------------------+-----------+------------------------+------------+-----------+---------+ | participant | time (ms) | mod_overhead_time (ms) | vs_slowest | errors | samples | +----------------------------------+-----------+------------------------+------------+-----------+---------+ | Math::Random::GaussianRange | 34 | 27.9 | 1 | 7.2e-05 | 20 | | Math::Random::OO::Normal | 22 | 15.9 | 1.5 | 9.4e-05 | 20 | | Math::Random::NormalDistribution | 10 | 3.9 | 3 | 0.00012 | 20 | | perl -e1 (baseline) | 6.1 | 0 | 5.5 | 5.6e-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 . SOURCE Source repository is at . BUGS Please report any bugs or feature requests on the bugtracker website 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 COPYRIGHT AND LICENSE This software is copyright (c) 2018 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.