NAME Bencher::Scenario::MemoryInfo - Benchmark getting system memory information VERSION This document describes version 0.001 of Bencher::Scenario::MemoryInfo (from Perl distribution Bencher-Scenario-MemoryInfo), released on 2017-11-19. SYNOPSIS To run benchmark with default option: % bencher -m MemoryInfo To run module startup overhead benchmark: % bencher --module-startup -m MemoryInfo 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. Sys::MemInfo 0.99 Linux::MemInfo 0.03 Linux::Info::MemStats 1.3 BENCHMARK PARTICIPANTS * Sys::MemInfo::freemem (perl_code) Function call template: Sys::MemInfo::freemem() * Linux::MemInfo::get_mem_info (perl_code) Function call template: Linux::MemInfo::get_mem_info() * Linux::Info::MemStats (perl_code) Code template: my $lxs = Linux::Info::MemStats->new; $lxs->get 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 18.2*, OS kernel: *Linux version 4.8.0-53-generic*. Benchmark with default options ("bencher -m MemoryInfo"): #table1# +------------------------------+-----------+-----------+------------+---------+---------+ | participant | rate (/s) | time (μs) | vs_slowest | errors | samples | +------------------------------+-----------+-----------+------------+---------+---------+ | Linux::MemInfo::get_mem_info | 11000 | 90 | 1 | 1.1e-07 | 29 | | Linux::Info::MemStats | 17000 | 58 | 1.5 | 1.2e-07 | 24 | | Sys::MemInfo::freemem | 4426000 | 0.226 | 397.6 | 1.2e-11 | 22 | +------------------------------+-----------+-----------+------------+---------+---------+ Benchmark module startup overhead ("bencher -m MemoryInfo --module-startup"): #table2# +-----------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+---------+---------+ | participant | proc_private_dirty_size (MB) | proc_rss_size (MB) | proc_size (MB) | time (ms) | mod_overhead_time (ms) | vs_slowest | errors | samples | +-----------------------+------------------------------+--------------------+----------------+-----------+------------------------+------------+---------+---------+ | Linux::Info::MemStats | 0.82 | 4.2 | 16 | 11 | 5.8 | 1 | 4.4e-05 | 20 | | Sys::MemInfo | 1 | 4.6 | 16 | 11 | 5.8 | 1 | 5.7e-05 | 20 | | Linux::MemInfo | 1.3 | 4.8 | 16 | 9.4 | 4.2 | 1.1 | 5.4e-05 | 20 | | perl -e1 (baseline) | 1.2 | 4.7 | 18 | 5.2 | 0 | 2.1 | 1e-05 | 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) 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.