NAME

Bencher::Scenario::DataUndump - Benchmark Data::Undump against eval() for loading a Data::Dumper output

VERSION

This document describes version 0.002 of Bencher::Scenario::DataUndump (from Perl distribution Bencher-Scenario-DataUndump), released on 2019-09-07.

SYNOPSIS

To run benchmark with default option:

 % bencher -m DataUndump

To run module startup overhead benchmark:

 % bencher --module-startup -m DataUndump

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.

Data::Undump 0.15

BENCHMARK PARTICIPANTS

• Data::Undump::undump (perl_code)

  Function call template:

   Data::Undump::undump(<dump>)

• eval (perl_code)

  Code template:

   eval(<dump>)

BENCHMARK DATASETS

• array100i

  Array of 100 integers

• array1000i

  Array of 1000 integers

• array10mixed

  A 10-element array containing a mix of various Perl data items

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 DataUndump):

 #table1#
 {dataset=>"array1000i"}
 +----------------------+-----------+-----------+------------+---------+---------+
 | participant          | rate (/s) | time (μs) | vs_slowest |  errors | samples |
 +----------------------+-----------+-----------+------------+---------+---------+
 | eval                 |    4849.8 |   206.194 |       1    |   0     |      21 |
 | Data::Undump::undump |   28100   |    35.6   |       5.79 | 3.4e-08 |      27 |
 +----------------------+-----------+-----------+------------+---------+---------+

 #table2#
 {dataset=>"array100i"}
 +----------------------+-----------+-----------+------------+---------+---------+
 | participant          | rate (/s) | time (μs) | vs_slowest |  errors | samples |
 +----------------------+-----------+-----------+------------+---------+---------+
 | eval                 |     42000 |     24    |       1    | 2.7e-08 |      20 |
 | Data::Undump::undump |    229000 |      4.36 |       5.43 | 1.7e-09 |      20 |
 +----------------------+-----------+-----------+------------+---------+---------+

 #table3#
 {dataset=>"array10mixed"}
 +----------------------+-----------+-----------+------------+---------+---------+
 | participant          | rate (/s) | time (μs) | vs_slowest |  errors | samples |
 +----------------------+-----------+-----------+------------+---------+---------+
 | eval                 |     71900 |      13.9 |        1   | 6.7e-09 |      20 |
 | Data::Undump::undump |    500000 |       2   |        6.9 | 2.5e-09 |      20 |
 +----------------------+-----------+-----------+------------+---------+---------+

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

 #table4#
 +---------------------+-----------+------------------------+------------+---------+---------+
 | participant         | time (ms) | mod_overhead_time (ms) | vs_slowest |  errors | samples |
 +---------------------+-----------+------------------------+------------+---------+---------+
 | Data::Undump        |       8.6 |                    2.8 |        1   | 2.8e-05 |      20 |
 | perl -e1 (baseline) |       5.8 |                    0   |        1.5 | 1.9e-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 https://metacpan.org/release/Bencher-Scenario-DataUndump.

SOURCE

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

BUGS

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

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.

SEE ALSO

https://www.reddit.com/r/perl/comments/czhwe6/syntax_differences_from_data_dumper_to_json/ez95r7c?utm_source=share&utm_medium=web2x

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::DataUndump

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