NAME

Bencher::Scenario::LogGer::Overhead - Measure startup overhead of various codes

VERSION

This document describes version 0.016 of Bencher::Scenario::LogGer::Overhead (from Perl distribution Bencher-Scenarios-LogGer), released on 2020-01-13.

SYNOPSIS

To run benchmark with default option:

% bencher -m LogGer::Overhead

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.

Log::Any 1.707

Log::Contextual 0.008001

Log::Dispatch 2.68

Log::Dispatch::Null 2.68

Log::Dispatchouli 2.019

Log::Log4perl 1.49

Log::Log4perl::Tiny 1.4.0

Log::ger 0.028

Log::ger::App 0.013

Log::ger::Layout::Pattern 0.004

Log::ger::Output 0.028

Mojo::Log

BENCHMARK PARTICIPANTS

use strict; (perl_code)

Code template:
```
use strict;
```
use warnings; (perl_code)

Code template:
```
use warnings;
```
use strict; use warnings; (perl_code)

Code template:
```
use strict; use warnings;
```
use Log::ger (); (perl_code)

Code template:
```
use Log::ger ();
```
use Log::ger; (perl_code)

Code template:
```
use Log::ger;
```
use Log::ger; Log::ger->get_logger; (perl_code)

Code template:
```
use Log::ger; Log::ger->get_logger;
```
use Log::ger::App; (perl_code)

Code template:
```
use Log::ger::App;
```
use Log::ger::App; use Log::ger; (perl_code)

Code template:
```
use Log::ger::App; use Log::ger;
```
use Log::ger::Plugin::OptAway; use Log::ger; (perl_code)

Code template:
```
use Log::ger::Plugin::OptAway; use Log::ger;
```
use Log::ger::Like::LogAny; (perl_code)

Code template:
```
use Log::ger::Like::LogAny;
```
use Log::ger::Like::Log4perl; (perl_code)

Code template:
```
use Log::ger::Like::Log4perl;
```
use Log::ger::App; (perl_code)

Code template:
```
use Log::ger::App;
```
use Log::Any; (perl_code)

Code template:
```
use Log::Any;
```
use Log::Any q($log); (perl_code)

Code template:
```
use Log::Any q($log);
```
use Log::Contextual qw(:log); (perl_code)

Code template:
```
use Log::Contextual qw(:log);
```
use Log::Log4perl; (perl_code)

Code template:
```
use Log::Log4perl;
```
use Log::Log4perl::Tiny; (perl_code)

Code template:
```
use Log::Log4perl::Tiny;
```
use Log::Dispatch; (perl_code)

Code template:
```
use Log::Dispatch;
```
use Log::Dispatch; my $null = Log::Dispatch->new(outputs=>[ ["Nu (perl_code) [output]

Code template:
```
use Log::Dispatch; my $null = Log::Dispatch->new(outputs=>[ ["Null", min_level=>"warn"] ])
```
use Log::Dispatchouli; (perl_code)

Code template:
```
use Log::Dispatchouli;
```
use Log::ger::Output::Screen; (perl_code) [output]

Code template:
```
use Log::ger::Output::Screen;
```
use Log::ger::Output::Composite; (perl_code) [output]

Code template:
```
use Log::ger::Output::Composite;
```
use Mojo::Log; (perl_code)

Code template:
```
use Mojo::Log;
```
use Mojo::Log; my $log=Mojo::Log->new(level=>"warn") (perl_code)

Code template:
```
use Mojo::Log; my $log=Mojo::Log->new(level=>"warn")
```

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.30.0, CPU: Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (2 cores), OS: GNU/Linux Ubuntu version 19.04, OS kernel: Linux version 5.0.0-37-generic.

Benchmark with default options (bencher -m LogGer::Overhead):

#table1#
+------------------------------------------------------------------+-----------+--------------------+-----------------------+-----------------------+---------+---------+
| participant                                                      | time (ms) | code_overhead_time | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+------------------------------------------------------------------+-----------+--------------------+-----------------------+-----------------------+---------+---------+
| use Mojo::Log; my $log=Mojo::Log->new(level=>"warn")             |    103    | 96.1               |                 0.00% |              1379.96% | 7.4e-05 |      21 |
| use Mojo::Log;                                                   |    103    | 96.1               |                 0.04% |              1379.31% | 8.2e-05 |      20 |
| use Log::Dispatchouli;                                           |     79.3  | 72.4               |                29.65% |              1041.53% | 3.5e-05 |      23 |
| use Log::Dispatch; my $null = Log::Dispatch->new(outputs=>[ ["Nu |     76.2  | 69.3               |                34.99% |               996.38% | 1.7e-05 |      21 |
| use Log::Dispatch;                                               |     71.6  | 64.7               |                43.62% |               930.47% | 5.8e-05 |      20 |
| use Log::Contextual qw(:log);                                    |     68.1  | 61.2               |                50.87% |               880.98% | 4.9e-05 |      20 |
| use Log::Log4perl;                                               |     34    | 27.1               |               199.94% |               393.41% | 4.2e-05 |      20 |
| use Log::ger::App; use Log::ger;                                 |     26.4  | 19.5               |               289.97% |               279.50% |   2e-05 |      20 |
| use Log::ger::App;                                               |     22.7  | 15.8               |               352.31% |               227.20% | 1.1e-05 |      21 |
| use Log::Log4perl::Tiny;                                         |     18.8  | 11.9               |               447.31% |               170.41% | 1.7e-05 |      20 |
| use Log::ger::Like::Log4perl;                                    |     17    | 10.1               |               505.97% |               144.23% |   1e-05 |      20 |
| use Log::Any q($log);                                            |     14.1  |  7.2               |               631.39% |               102.35% |   6e-06 |      20 |
| use Log::Any;                                                    |     13.6  |  6.7               |               655.33% |                95.93% | 5.3e-06 |      24 |
| use Log::ger::Output::Composite;                                 |     12.5  |  5.6               |               724.85% |                79.42% | 3.1e-06 |      20 |
| use Log::ger::Output::Screen;                                    |     11.8  |  4.9               |               767.86% |                70.53% | 2.9e-06 |      20 |
| use Log::ger::Plugin::OptAway; use Log::ger;                     |      9.58 |  2.68              |               972.95% |                37.93% | 2.5e-06 |      20 |
| use strict; use warnings;                                        |      8.76 |  1.86              |              1073.05% |                26.16% | 5.4e-06 |      20 |
| use warnings;                                                    |      8.53 |  1.63              |              1104.69% |                22.85% | 4.2e-06 |      21 |
| use Log::ger::Like::LogAny;                                      |      7.78 |  0.88              |              1221.30% |                12.01% | 4.7e-06 |      20 |
| use Log::ger; Log::ger->get_logger;                              |      7.64 |  0.739999999999999 |              1245.54% |                 9.99% | 5.9e-06 |      21 |
| use Log::ger;                                                    |      7.59 |  0.69              |              1255.32% |                 9.20% | 2.7e-06 |      20 |
| use Log::ger ();                                                 |      7.54 |  0.64              |              1262.83% |                 8.59% | 5.1e-06 |      20 |
| use strict;                                                      |      7.33 |  0.43              |              1303.30% |                 5.46% | 6.7e-06 |      20 |
| perl -e1 (baseline)                                              |      6.9  |  0                 |              1379.96% |                 0.00% | 2.3e-05 |      21 |
+------------------------------------------------------------------+-----------+--------------------+-----------------------+-----------------------+---------+---------+

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-Scenarios-LogGer.

SOURCE

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

BUGS

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

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 is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

To install Bencher::Scenarios::LogGer, copy and paste the appropriate command in to your terminal.

cpanm

cpanm Bencher::Scenarios::LogGer

CPAN shell

perl -MCPAN -e shell
install Bencher::Scenarios::LogGer

For more information on module installation, please visit the detailed CPAN module installation guide.

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