Bencher::Scenario::Example::StringConcat - Benchmark concatenation of string
This document describes version 0.002 of Bencher::Scenario::Example::StringConcat (from Perl distribution Bencher-Scenarios-Examples), released on 2017-01-25.
To run benchmark with default option:
% bencher -m Example::StringConcat
For more options (dump scenario, list/include/exclude/add participants, list/include/exclude/add datasets, etc), see bencher or run bencher --help.
bencher --help
The benchmark code starts with an empty string then appends one character at a time for N times:
$str = ''; $str .= 'x';
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.
concat_str (perl_code)
Code template:
my $str = ""; for (1..<size>) { $str .= "x" } $str
[10,1000,5000,10000,50000,100000,500000,1000000,5000000]
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 Example::StringConcat):
bencher -m Example::StringConcat
#table1# +----------+-----------+-----------+------------+-----------+---------+ | arg_size | rate (/s) | time (ms) | vs_slowest | errors | samples | +----------+-----------+-----------+------------+-----------+---------+ | 5000000 | 3.7 | 270 | 1 | 0.00056 | 20 | | 1000000 | 18 | 55 | 5 | 6.7e-05 | 20 | | 500000 | 37 | 27 | 10 | 0.00011 | 20 | | 100000 | 180 | 5.5 | 50 | 2e-05 | 20 | | 50000 | 400 | 3 | 100 | 4.3e-05 | 20 | | 10000 | 2000 | 0.501 | 546 | 4.3e-07 | 20 | | 5000 | 3590 | 0.279 | 982 | 2.1e-07 | 20 | | 1000 | 22000 | 0.045 | 6100 | 1.1e-07 | 26 | | 10 | 1600000 | 0.00064 | 430000 | 8.4e-10 | 20 | +----------+-----------+-----------+------------+-----------+---------+
To display as an interactive HTML table on a browser, you can add option --format html+datatables.
--format html+datatables
Please visit the project's homepage at https://metacpan.org/release/Bencher-Scenarios-Examples.
Source repository is at https://github.com/perlancar/perl-Bencher-Scenarios-Examples.
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Bencher-Scenarios-Examples
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.
Bencher::Scenario::Example::StringConcat2
perlancar <perlancar@cpan.org>
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.
To install Bencher::Scenarios::Examples, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Bencher::Scenarios::Examples
CPAN shell
perl -MCPAN -e shell install Bencher::Scenarios::Examples
For more information on module installation, please visit the detailed CPAN module installation guide.