NAME

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

VERSION

This document describes version 0.015 of Bencher::Scenario::LogGer::Overhead (from Perl distribution Bencher-Scenarios-LogGer), released on 2019-09-18.

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 1.705

Log::Contextual 0.008001

Log::Dispatch 2.67

Log::Dispatch::Null 2.67

Log::Dispatchouli 2.015

Log::Log4perl 1.49

Log::Log4perl::Tiny 1.4.0

Log::ger 0.028

Log::ger::App 0.011

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: v5.26.1, 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 LogGer::Overhead):

#table1#
+------------------------------------------------------------------+-----------+-------------------------+------------+-----------+---------+
| participant                                                      | time (ms) | code_overhead_time (ms) | vs_slowest |  errors   | samples |
+------------------------------------------------------------------+-----------+-------------------------+------------+-----------+---------+
| use Mojo::Log; my $log=Mojo::Log->new(level=>"warn")             |      92   |      85.8               |       1    |   0.00036 |      20 |
| use Mojo::Log;                                                   |      92   |      85.8               |       1    |   0.00035 |      20 |
| use Log::Dispatchouli;                                           |      91   |      84.8               |       1    |   0.00035 |      20 |
| use Log::Dispatch; my $null = Log::Dispatch->new(outputs=>[ ["Nu |      88   |      81.8               |       1.1  |   0.00019 |      20 |
| use Log::Dispatch;                                               |      84   |      77.8               |       1.1  |   0.00046 |      20 |
| use Log::Contextual qw(:log);                                    |      64.8 |      58.6               |       1.42 | 5.1e-05   |      20 |
| use Log::Log4perl;                                               |      32.6 |      26.4               |       2.82 | 1.3e-05   |      20 |
| use Log::ger::App; use Log::ger;                                 |      21.1 |      14.9               |       4.38 | 1.9e-05   |      20 |
| use Log::Log4perl::Tiny;                                         |      19.2 |      13                 |       4.81 | 1.2e-05   |      20 |
| use Log::ger::Like::Log4perl;                                    |      16   |       9.8               |       5.9  | 3.4e-05   |      20 |
| use Log::ger::App;                                               |      14.9 |       8.7               |       6.2  | 1.1e-05   |      20 |
| use Log::Any q($log);                                            |      14   |       7.8               |       6.7  | 1.6e-05   |      20 |
| use Log::Any;                                                    |      13   |       6.8               |       7    | 1.7e-05   |      20 |
| use Log::ger::Output::Composite;                                 |      12   |       5.8               |       7.7  |   2e-05   |      20 |
| use Log::ger::Output::Screen;                                    |      11.3 |       5.1               |       8.18 |   1e-05   |      20 |
| use Log::ger::Plugin::OptAway; use Log::ger;                     |       9   |       2.8               |      10    | 1.6e-05   |      20 |
| use strict; use warnings;                                        |       8.2 |       2                 |      11    | 1.3e-05   |      20 |
| use warnings;                                                    |       7.9 |       1.7               |      12    | 1.7e-05   |      20 |
| use Log::ger::Like::LogAny;                                      |       7.3 |       1.1               |      13    | 2.3e-05   |      20 |
| use Log::ger;                                                    |       7.2 |       1                 |      13    | 1.4e-05   |      20 |
| use Log::ger; Log::ger->get_logger;                              |       7.1 |       0.899999999999999 |      13    | 1.2e-05   |      20 |
| use Log::ger ();                                                 |       7.1 |       0.899999999999999 |      13    | 9.6e-06   |      22 |
| use strict;                                                      |       6.7 |       0.5               |      14    | 1.5e-05   |      20 |
| perl -e1 (baseline)                                              |       6.2 |       0                 |      15    | 1.2e-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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