NAME Bencher::Scenario::Caller - Benchmark some variations of caller() VERSION This document describes version 0.001 of Bencher::Scenario::Caller (from Perl distribution Bencher-Scenario-Caller), released on 2019-04-14. SYNOPSIS To run benchmark with default option: % bencher -m Caller To run module startup overhead benchmark: % bencher --module-startup -m Caller 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. Devel::Caller::Util 0.042 BENCHMARK PARTICIPANTS * CORE::caller() (scalar) (perl_code) Code template: CORE::caller() * CORE::caller() (list) (perl_code) Code template: CORE::caller() * CORE::caller(0) (perl_code) Code template: CORE::caller(0) * CORE::caller(1) (perl_code) Code template: CORE::caller(1) * CORE::caller(2) (perl_code) Code template: CORE::caller(2) * Devel::Caller::Util::caller(0) (perl_code) Code template: Devel::Caller::Util::caller(0) * Devel::Caller::Util::caller(1) (perl_code) Code template: Devel::Caller::Util::caller(1) * Devel::Caller::Util::caller(2) (perl_code) Code template: Devel::Caller::Util::caller(2) * Devel::Caller::Util::caller(0) with-args (perl_code) Code template: Devel::Caller::Util::caller(0, 1) * Devel::Caller::Util::caller(0) with-packages-to-ignore=re (perl_code) Code template: Devel::Caller::Util::caller(0, 0, qr/^Bencher::Scenario$/) SAMPLE BENCHMARK RESULTS Run on: perl: *v5.26.1*, CPU: *Intel(R) Core(TM) M-5Y71 CPU @ 1.20GHz (2 cores)*, OS: *GNU/Linux LinuxMint version 18.3*, OS kernel: *Linux version 4.10.0-38-generic*. Benchmark with default options ("bencher -m Caller"): #table1# +-----------------------------------------------------------+-----------+-----------+------------+---------+---------+ | participant | rate (/s) | time (μs) | vs_slowest | errors | samples | +-----------------------------------------------------------+-----------+-----------+------------+---------+---------+ | Devel::Caller::Util::caller(2) | 100000 | 9.7 | 1 | 9.8e-09 | 21 | | Devel::Caller::Util::caller(1) | 150000 | 6.8 | 1.4 | 1e-08 | 20 | | Devel::Caller::Util::caller(0) with-args | 230000 | 4.3 | 2.3 | 8.3e-09 | 20 | | Devel::Caller::Util::caller(0) with-packages-to-ignore=re | 200000 | 4 | 2 | 2e-07 | 20 | | Devel::Caller::Util::caller(0) | 280000 | 3.6 | 2.7 | 2.1e-08 | 20 | | CORE::caller(1) | 23000000 | 0.043 | 230 | 2.9e-10 | 20 | | CORE::caller(0) | 24000000 | 0.042 | 230 | 1e-10 | 22 | | CORE::caller(2) | 25000000 | 0.04 | 240 | 5.8e-11 | 20 | | CORE::caller() (scalar) | 25000000 | 0.039 | 250 | 1.2e-10 | 20 | | CORE::caller() (list) | 27000000 | 0.038 | 260 | 2.4e-10 | 24 | +-----------------------------------------------------------+-----------+-----------+------------+---------+---------+ Benchmark module startup overhead ("bencher -m Caller --module-startup"): #table2# +---------------------+-----------+------------------------+------------+---------+---------+ | participant | time (ms) | mod_overhead_time (ms) | vs_slowest | errors | samples | +---------------------+-----------+------------------------+------------+---------+---------+ | Devel::Caller::Util | 10 | 2 | 1 | 0.00022 | 22 | | perl -e1 (baseline) | 8 | 0 | 2 | 0.0001 | 20 | +---------------------+-----------+------------------------+------------+---------+---------+ 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 . 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) 2019 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.