NAME Bencher::Scenario::Shell::Startup - Benchmark startup overhead of various Unix shells VERSION This document describes version 0.001 of Bencher::Scenario::Shell::Startup (from Perl distribution Bencher-Scenario-Shell-Startup), released on 2023-07-08. SYNOPSIS To run benchmark with default option: % bencher -m Shell::Startup 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. BENCHMARK PARTICIPANTS * bash (command) Command line: bash --noprofile --norc -c true * dash (command) Command line: dash -c true * csh (command) Command line: csh -f -c : * tcsh (command) Command line: tcsh -f -c : * zsh (command) Command line: zsh -f -c true 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 Shell::Startup"): #table1# {dataset=>undef} +-------------+-----------+-----------+-----------------------+-----------------------+---------+---------+ | participant | rate (/s) | time (ms) | pct_faster_vs_slowest | pct_slower_vs_fastest | errors | samples | +-------------+-----------+-----------+-----------------------+-----------------------+---------+---------+ | csh | 123 | 8.1 | 0.00% | 57.10% | 5.3e-06 | 20 | | tcsh | 124 | 8.09 | 0.10% | 56.95% | 8.1e-06 | 20 | | zsh | 160 | 6.2 | 31.71% | 19.28% | 7.6e-06 | 20 | | bash | 180 | 5.6 | 45.06% | 8.31% | 1.2e-05 | 21 | | dash | 190 | 5.2 | 57.10% | 0.00% | 7.4e-06 | 20 | +-------------+-----------+-----------+-----------------------+-----------------------+---------+---------+ Formatted as Benchmark.pm result: Rate csh tcsh zsh bash dash csh 123/s -- 0% -23% -30% -35% tcsh 124/s 0% -- -23% -30% -35% zsh 160/s 30% 30% -- -9% -16% bash 180/s 44% 44% 10% -- -7% dash 190/s 55% 55% 19% 7% -- Legends: bash: participant=bash csh: participant=csh dash: participant=dash tcsh: participant=tcsh zsh: participant=zsh 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 . SEE ALSO AUTHOR perlancar 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 -l If 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, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me. COPYRIGHT AND LICENSE This software is copyright (c) 2023 by perlancar . 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 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.