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Bencher-Scenarios-ParamsSah-0.001
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NAME

Bencher::Scenario::ParamsSah::Compile - Measure compilation speed

VERSION

This document describes version 0.001 of Bencher::Scenario::ParamsSah::Compile (from Perl distribution Bencher-Scenarios-ParamsSah), released on 2020-05-08.

SYNOPSIS

To run benchmark with default option:

% bencher -m ParamsSah::Compile

To run module startup overhead benchmark:

% bencher --module-startup -m ParamsSah::Compile

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.

Params::Sah 0.070

Type::Params 1.010001

Params::ValidationCompiler 0.30

BENCHMARK PARTICIPANTS

  • Params::Sah (perl_code)

    Function call template:

    Params::Sah::gen_validator("int*", ["array*",of=>"int*"])

  • Type::Params (perl_code)

    Code template:

    use Type::Params qw(compile); use Types::Standard qw(Int ArrayRef); compile(Int, ArrayRef[Int])

  • Params::ValidationCompiler (perl_code)

    Code template:

    use Params::ValidationCompiler qw(validation_for); use Types::Standard qw(Int ArrayRef); validation_for(params => [{type=>Int}, {type=>ArrayRef[Int]}])

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.30.2, CPU: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (4 cores), OS: GNU/Linux LinuxMint version 19, OS kernel: Linux version 4.15.0-91-generic.

Benchmark with default options (bencher -m ParamsSah::Compile):

#table1#
+----------------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| participant                | rate (/s) | time (ms) | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+----------------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| Params::Sah                |       566 |      1.77 |                 0.00% |               871.27% | 6.9e-07 |      20 |
| Params::ValidationCompiler |      3800 |      0.27 |               566.09% |                45.82% | 3.7e-07 |      20 |
| Type::Params               |      5500 |      0.18 |               871.27% |                 0.00% | 1.9e-07 |      24 |
+----------------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+

Benchmark module startup overhead (bencher -m ParamsSah::Compile --module-startup):

#table2#
+----------------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
| participant                | time (ms) | mod_overhead_time | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+----------------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
| Type::Params               |        38 |                33 |                 0.00% |               671.59% | 0.00018 |      20 |
| Params::ValidationCompiler |        25 |                20 |                54.11% |               400.69% | 0.00016 |      20 |
| Params::Sah                |         9 |                 4 |               342.67% |                74.30% | 0.00018 |      20 |
| perl -e1 (baseline)        |         5 |                 0 |               671.59% |                 0.00% | 0.00021 |      20 |
+----------------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+

To display as an interactive HTML table on a browser, you can add option --format html+datatables.

BENCHMARK NOTES

Compilation of Sah schemas by Data::Sah (which is used by Params::Sah) is slower due to doing more stuffs like normalizing schema and other preparations. If needed, future version of Params::Sah or Data::Sah can cache compilation result particularly for commonly encountered simple schemas like 'int', ['array*', of=>'str*'], etc.

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Bencher-Scenarios-ParamsSah.

SOURCE

Source repository is at https://github.com/perlancar/perl-Bencher-Scenarios-ParamsSah.

BUGS

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

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) 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.