NAME Bencher::Scenario::PerlPhase - Benchmark Perl::Phase VERSION This document describes version 0.001 of Bencher::Scenario::PerlPhase (from Perl distribution Bencher-Scenario-PerlPhase), released on 2020-02-05. SYNOPSIS To run benchmark with default option: % bencher -m PerlPhase 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 * GLOBAL_PHASE-compile_time (perl_code) Code template: ${^GLOBAL_PHASE} eq "START" ? 1:0 * GLOBAL_PHASE-run_time (perl_code) Code template: ${^GLOBAL_PHASE} eq "RUN" ? 1:0 * Perl::Phase::is_compile_time (perl_code) Code template: use Perl::Phase; Perl::Phase::is_compile_time() ? 1:0 * Perl::Phase::is_run_time (perl_code) Code template: use Perl::Phase; Perl::Phase::is_run_time() ? 1:0 SAMPLE BENCHMARK RESULTS Run on: perl: *v5.30.0*, CPU: *Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (2 cores)*, OS: *GNU/Linux Ubuntu version 19.04*, OS kernel: *Linux version 5.0.0-37-generic*. Benchmark with default options ("bencher -m PerlPhase"): #table1# +------------------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+ | participant | rate (/s) | time (ns) | pct_faster_vs_slowest | pct_slower_vs_fastest | errors | samples | +------------------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+ | Perl::Phase::is_compile_time | 4090000 | 245 | 0.00% | 172.03% | 1.1e-10 | 20 | | Perl::Phase::is_run_time | 4600000 | 220 | 11.62% | 143.71% | 3.1e-10 | 20 | | GLOBAL_PHASE-run_time | 10500000 | 94.9 | 157.68% | 5.57% | 5.5e-11 | 21 | | GLOBAL_PHASE-compile_time | 11000000 | 90 | 172.03% | 0.00% | 2.1e-10 | 20 | +------------------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+ To display as an interactive HTML table on a browser, you can add option "--format html+datatables". BENCHMARK NOTES Perl::Phase claims to be much faster than checking "${^GLOBAL_PHASE}", because it's a numeric vs string comparison. This benchmark doesn't seem to show that. And in 99.9% of the case, the speed won't matter. Conclusion: just use the variable perl has provided, unless you're on perl < 5.14. 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) 2020 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.