NAME

Bencher::Scenario::CallStack - Benchmark different methods to produce call stack

VERSION

This document describes version 0.001 of Bencher::Scenario::CallStack (from Perl distribution Bencher-Scenario-CallStack), released on 2019-04-14.

SYNOPSIS

To run benchmark with default option:

% bencher -m CallStack

To run module startup overhead benchmark:

% bencher --module-startup -m CallStack

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

Carp 1.42

BENCHMARK PARTICIPANTS

• Devel::Caller::Util::callers (perl_code)

  Function call template:

  Devel::Caller::Util::callers()

• Devel::Caller::Util::callers with-args (perl_code)

  Function call template:

  Devel::Caller::Util::callers(0, 1)

• Carp::ret_backtrace (perl_code)

  Function call template:

  Carp::ret_backtrace()

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 CallStack):

#table1#
+----------------------------------------+-----------+-----------+------------+---------+---------+
| participant                            | rate (/s) | time (μs) | vs_slowest |  errors | samples |
+----------------------------------------+-----------+-----------+------------+---------+---------+
| Carp::ret_backtrace                    |      2150 |       465 |        1   | 4.6e-07 |      22 |
| Devel::Caller::Util::callers with-args |     18000 |        55 |        8.5 |   1e-07 |      22 |
| Devel::Caller::Util::callers           |     25700 |        39 |       11.9 | 1.3e-08 |      20 |
+----------------------------------------+-----------+-----------+------------+---------+---------+

Benchmark module startup overhead (bencher -m CallStack --module-startup):

#table2#
+---------------------+-----------+------------------------+------------+---------+---------+
| participant         | time (ms) | mod_overhead_time (ms) | vs_slowest |  errors | samples |
+---------------------+-----------+------------------------+------------+---------+---------+
| Carp                |       9   |                    4.1 |        1   | 1.2e-05 |      20 |
| Devel::Caller::Util |       7.2 |                    2.3 |        1.2 | 1.5e-05 |      20 |
| perl -e1 (baseline) |       4.9 |                    0   |        1.8 | 1.6e-05 |      22 |
+---------------------+-----------+------------------------+------------+---------+---------+

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 https://metacpan.org/release/Bencher-Scenario-CallStack.

SOURCE

Source repository is at https://github.com/perlancar/perl-Bencher-Scenario-CallStack.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Bencher-Scenario-CallStack

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 <perlancar@cpan.org>

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.

cpanm Bencher::Scenario::CallStack

perl -MCPAN -e shell
install Bencher::Scenario::CallStack