NAME
Bencher::Scenario::Array::Sample::WeightedRandom::nocopy_algo - Benchmark the nocopy algorithm
VERSION
This document describes version 0.001 of Bencher::Scenario::Array::Sample::WeightedRandom::nocopy_algo (from Perl distribution Bencher-Scenarios-Array-Sample-WeightedRandom), released on 2022-05-21.
SYNOPSIS
To run benchmark with default option:
% bencher -m Array::Sample::WeightedRandom::nocopy_algoTo run module startup overhead benchmark:
% bencher --module-startup -m Array::Sample::WeightedRandom::nocopy_algoFor 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.
Array::Sample::WeightedRandom 0.004
BENCHMARK PARTICIPANTS
nocopy (perl_code)
Function call template:
Array::Sample::WeightedRandom::sample_weighted_random_no_replacement(<ary>, <n>, {algo=>"nocopy"})copy (perl_code)
Function call template:
Array::Sample::WeightedRandom::sample_weighted_random_no_replacement(<ary>, <n>, {algo=>"copy"} )
BENCHMARK DATASETS
empty
ary=25 n=2
ary=25 n=10
ary=1000 n=2
ary=1000 n=200
ary=100_000 n=2
SAMPLE BENCHMARK RESULTS
Run on: perl: v5.34.0, CPU: Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (2 cores), OS: GNU/Linux Ubuntu version 20.04, OS kernel: Linux version 5.4.0-91-generic.
Benchmark with default options (bencher -m Array::Sample::WeightedRandom::nocopy_algo):
#table1#
+-------------+-----------------+-----------+-----------+-----------------------+-----------------------+-----------+---------+
| participant | dataset | rate (/s) | time (ms) | pct_faster_vs_slowest | pct_slower_vs_fastest | errors | samples |
+-------------+-----------------+-----------+-----------+-----------------------+-----------------------+-----------+---------+
| nocopy | ary=100_000 n=2 | 10 | 80 | 0.00% | 7876847.01% | 0.0014 | 20 |
| copy | ary=100_000 n=2 | 10 | 70 | 6.07% | 7425757.21% | 0.0023 | 20 |
| nocopy | ary=1000 n=200 | 32 | 31 | 143.88% | 3229757.64% | 0.00019 | 20 |
| copy | ary=1000 n=200 | 56 | 18 | 324.79% | 1854221.67% | 0.00015 | 20 |
| copy | ary=1000 n=2 | 2000 | 0.5 | 15917.72% | 49076.45% | 1.8e-05 | 20 |
| nocopy | ary=1000 n=2 | 2000 | 0.4 | 17153.98% | 45552.92% | 1.6e-05 | 20 |
| nocopy | ary=25 n=10 | 18000 | 0.055 | 136784.00% | 5654.47% | 3.9e-07 | 21 |
| copy | ary=25 n=10 | 28000 | 0.036 | 212258.09% | 3609.28% | 1.6e-07 | 20 |
| nocopy | ary=25 n=2 | 64000 | 0.016 | 484109.60% | 1526.76% | 5.3e-08 | 20 |
| copy | ary=25 n=2 | 71000 | 0.014 | 537020.95% | 1366.51% | 1.1e-07 | 20 |
| copy | empty | 961000 | 0.00104 | 7252294.69% | 8.61% | 3.5e-10 | 28 |
| nocopy | empty | 1000000 | 0.00096 | 7876847.01% | 0.00% | 1.3e-09 | 20 |
+-------------+-----------------+-----------+-----------+-----------------------+-----------------------+-----------+---------+Formatted as Benchmark.pm result:
Rate nocopy ary=100_000 n=2 copy ary=100_000 n=2 nocopy ary=1000 n=200 copy ary=1000 n=200 copy ary=1000 n=2 nocopy ary=1000 n=2 nocopy ary=25 n=10 copy ary=25 n=10 nocopy ary=25 n=2 copy ary=25 n=2 copy empty nocopy empty
nocopy ary=100_000 n=2 10/s -- -12% -61% -77% -99% -99% -99% -99% -99% -99% -99% -99%
copy ary=100_000 n=2 10/s 14% -- -55% -74% -99% -99% -99% -99% -99% -99% -99% -99%
nocopy ary=1000 n=200 32/s 158% 125% -- -41% -98% -98% -99% -99% -99% -99% -99% -99%
copy ary=1000 n=200 56/s 344% 288% 72% -- -97% -97% -99% -99% -99% -99% -99% -99%
copy ary=1000 n=2 2000/s 15900% 13900% 6100% 3500% -- -19% -89% -92% -96% -97% -99% -99%
nocopy ary=1000 n=2 2000/s 19900% 17400% 7650% 4400% 25% -- -86% -91% -96% -96% -99% -99%
nocopy ary=25 n=10 18000/s 145354% 127172% 56263% 32627% 809% 627% -- -34% -70% -74% -98% -98%
copy ary=25 n=10 28000/s 222122% 194344% 86011% 49900% 1288% 1011% 52% -- -55% -61% -97% -97%
nocopy ary=25 n=2 64000/s 499900% 437400% 193650% 112400% 3025% 2400% 243% 125% -- -12% -93% -94%
copy ary=25 n=2 71000/s 571328% 499900% 221328% 128471% 3471% 2757% 292% 157% 14% -- -92% -93%
copy empty 961000/s 7692207% 6730669% 2980669% 1730669% 47976% 38361% 5188% 3361% 1438% 1246% -- -7%
nocopy empty 1000000/s 8333233% 7291566% 3229066% 1874900% 51983% 41566% 5629% 3649% 1566% 1358% 8% --
Legends:
copy ary=1000 n=2: dataset=ary=1000 n=2 participant=copy
copy ary=1000 n=200: dataset=ary=1000 n=200 participant=copy
copy ary=100_000 n=2: dataset=ary=100_000 n=2 participant=copy
copy ary=25 n=10: dataset=ary=25 n=10 participant=copy
copy ary=25 n=2: dataset=ary=25 n=2 participant=copy
copy empty: dataset=empty participant=copy
nocopy ary=1000 n=2: dataset=ary=1000 n=2 participant=nocopy
nocopy ary=1000 n=200: dataset=ary=1000 n=200 participant=nocopy
nocopy ary=100_000 n=2: dataset=ary=100_000 n=2 participant=nocopy
nocopy ary=25 n=10: dataset=ary=25 n=10 participant=nocopy
nocopy ary=25 n=2: dataset=ary=25 n=2 participant=nocopy
nocopy empty: dataset=empty participant=nocopyBenchmark module startup overhead (bencher -m Array::Sample::WeightedRandom::nocopy_algo --module-startup):
#table2#
+-------------------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
| participant | time (ms) | mod_overhead_time | pct_faster_vs_slowest | pct_slower_vs_fastest | errors | samples |
+-------------------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
| Array::Sample::WeightedRandom | 13.6 | 2.6 | 0.00% | 21.97% | 8.5e-06 | 20 |
| perl -e1 (baseline) | 11 | 0 | 21.97% | 0.00% | 1.4e-05 | 20 |
+-------------------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+Formatted as Benchmark.pm result:
Rate AS:W perl -e1 (baseline)
AS:W 73.5/s -- -19%
perl -e1 (baseline) 90.9/s 23% --
Legends:
AS:W: mod_overhead_time=2.6 participant=Array::Sample::WeightedRandom
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-Scenarios-Array-Sample-WeightedRandom.
SOURCE
Source repository is at https://github.com/perlancar/perl-Bencher-Scenarios-Array-Sample-WeightedRandom.
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 -lIf 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 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-Scenarios-Array-Sample-WeightedRandom
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.