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Bencher-Scenarios-FileWriteRotate-0.001
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NAME

Bencher::Scenario::FileWriteRotate::Writing - Benchmark writing using File::Write::Rotate

VERSION

This document describes version 0.001 of Bencher::Scenario::FileWriteRotate::Writing (from Perl distribution Bencher-Scenarios-FileWriteRotate), released on 2016-10-04.

SYNOPSIS

To run benchmark with default option:

% bencher -m FileWriteRotate::Writing

To run module startup overhead benchmark:

% bencher --module-startup -m FileWriteRotate::Writing

For more options (dump scenario, list/include/exclude/add participants, list/include/exclude/add datasets, etc), see bencher or run bencher --help.

BENCHMARKED MODULES

Version numbers shown below are the versions used when running the sample benchmark.

File::Write::Rotate 0.30

BENCHMARK PARTICIPANTS

  • fwr (perl_code)

    Code template:

    state $tempdir = File::Temp::tempdir(CLEANUP => 1);
state $fwr = File::Write::Rotate->new(dir => $tempdir, prefix=>'fwr');
$fwr->write(<str>) for 1..1000;

  • fwr(lock_mode=none) (perl_code)

    Code template:

    state $tempdir = File::Temp::tempdir(CLEANUP => 1);
state $fwr = File::Write::Rotate->new(dir => $tempdir, prefix=>'fwr', lock_mode=>'none');
$fwr->write(<str>) for 1..1000;

  • fwr(lock_mode=exclusive) (perl_code)

    Code template:

    state $tempdir = File::Temp::tempdir(CLEANUP => 1);
state $fwr = File::Write::Rotate->new(dir => $tempdir, prefix=>'fwr', lock_mode=>'exclusive');
$fwr->write(<str>) for 1..1000;

  • fwr(rotate_probability=0.1) (perl_code)

    Code template:

    state $tempdir = File::Temp::tempdir(CLEANUP => 1);
state $fwr = File::Write::Rotate->new(dir => $tempdir, prefix=>'fwr', rotate_probability=>0.1);
$fwr->write(<str>) for 1..1000;

  • normal (perl_code)

    Code template:

    state $tempdir = File::Temp::tempdir(CLEANUP => 1);
state $fh = do { open my $fh, ">", "$tempdir/nf"; $fh };
print { $fh } <str> for 1..1000;

BENCHMARK DATASETS

  • 1k x 100b

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 17.3, OS kernel: Linux version 3.19.0-32-generic.

Benchmark with default options (bencher -m FileWriteRotate::Writing):

#table1#
+-----------------------------+-----------+-----------+------------+---------+---------+
| participant                 | rate (/s) | time (ms) | vs_slowest |  errors | samples |
+-----------------------------+-----------+-----------+------------+---------+---------+
| fwr                         |      19.7 |     50.7  |       1    | 1.2e-05 |       6 |
| fwr(rotate_probability=0.1) |      24.6 |     40.6  |       1.25 | 3.7e-05 |       7 |
| fwr(lock_mode=exclusive)    |      89   |     11    |       4.5  | 1.4e-05 |       6 |
| fwr(lock_mode=none)         |      91   |     11    |       4.6  | 1.7e-05 |       6 |
| normal                      |    8400   |      0.12 |     430    | 1.2e-06 |       6 |
+-----------------------------+-----------+-----------+------------+---------+---------+

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.

HOMEPAGE

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

SOURCE

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

BUGS

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

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

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2016 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.