NAME
Bencher::Scenario::RefUtil - Benchmark Ref::Util
VERSION
This document describes version 0.002 of Bencher::Scenario::RefUtil (from Perl distribution Bencher-Scenarios-RefUtil), released on 2017-01-25.
SYNOPSIS
To run benchmark with default option:
% bencher -m RefUtil
To run module startup overhead benchmark:
% bencher --module-startup -m RefUtil
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.
Ref::Util 0.101
Scalar::Util 1.45
BENCHMARK PARTICIPANTS
is_arrayref (perl_code)
Code template:
no warnings "void"; state $ref = []; Ref::Util::is_arrayref($ref) for 1..1000
is_plain_arrayref (perl_code)
Code template:
no warnings "void"; state $ref = []; Ref::Util::is_plain_arrayref($ref) for 1..1000
ref(ARRAY) (perl_code)
Code template:
no warnings "void"; state $ref = []; ref($ref) eq "ARRAY" for 1..1000
reftype(ARRAY) (perl_code)
Code template:
no warnings "void"; state $ref = []; Scalar::Util::reftype($ref) eq "ARRAY" for 1..1000
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 17.3, OS kernel: Linux version 3.19.0-32-generic.
Benchmark with default options (bencher -m RefUtil
):
#table1#
+-------------------+-----------+-----------+------------+---------+---------+
| participant | rate (/s) | time (μs) | vs_slowest | errors | samples |
+-------------------+-----------+-----------+------------+---------+---------+
| reftype(ARRAY) | 11900 | 83.8 | 1 | 2.7e-08 | 20 |
| is_plain_arrayref | 20542.3 | 48.6801 | 1.72185 | 0 | 22 |
| ref(ARRAY) | 21000 | 47.5 | 1.76 | 1.3e-08 | 20 |
| is_arrayref | 21195.9 | 47.1789 | 1.77664 | 2.7e-11 | 20 |
+-------------------+-----------+-----------+------------+---------+---------+
Benchmark module startup overhead (bencher -m RefUtil --module-startup
):
#table2#
+---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+---------+---------+
| participant | proc_private_dirty_size (kB) | proc_rss_size (MB) | proc_size (MB) | time (ms) | mod_overhead_time (ms) | vs_slowest | errors | samples |
+---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+---------+---------+
| Scalar::Util | 844 | 4.17 | 16 | 9.14 | 4.14 | 1 | 8.8e-06 | 1016 |
| Ref::Util | 1016 | 4.36 | 18.1 | 8.7 | 3.7 | 1.05 | 8.5e-06 | 836 |
| perl -e1 (baseline) | 1016 | 4.37 | 18.1 | 5 | 0 | 1.83 | 4.8e-06 | 290 |
+---------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+---------+---------+
To display as an interactive HTML table on a browser, you can add option --format html+datatables
.
BENCHMARK NOTES
I'm not seeing significant performance difference between ref() eq "ARRAY"
and is_arrayref()
on my perls. Am I doing something wrong?
HOMEPAGE
Please visit the project's homepage at https://metacpan.org/release/Bencher-Scenarios-RefUtil.
SOURCE
Source repository is at https://github.com/perlancar/perl-Bencher-Scenarios-RefUtil.
BUGS
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Bencher-Scenarios-RefUtil
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.
SEE ALSO
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.