NAME

Bencher::Scenario::Scalar::Cmp - Benchmark Scalar::Cmp against similar solutions

VERSION

This document describes version 0.002 of Bencher::Scenario::Scalar::Cmp (from Perl distribution Bencher-Scenario-Scalar-Cmp), released on 2023-01-19.

SYNOPSIS

To run benchmark with default option:

% bencher -m Scalar::Cmp

To run module startup overhead benchmark:

% bencher --module-startup -m Scalar::Cmp

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.

Scalar::Cmp 0.003

Data::Cmp 0.007

Data::Cmp::Numeric 0.007

Data::Cmp::StrOrNumeric 0.007

BENCHMARK PARTICIPANTS

Scalar::Cmp::cmp_scalar (perl_code)

Function call template:
```
Scalar::Cmp::cmp_scalar(<data1>, <data2>)
```
Scalar::Cmp::cmpnum_scalar (perl_code)

Function call template:
```
Scalar::Cmp::cmpnum_scalar(<data1>, <data2>)
```
Scalar::Cmp::cmpstrornum_scalar (perl_code)

Function call template:
```
Scalar::Cmp::cmpstrornum_scalar(<data1>, <data2>)
```
Data::Cmp::cmp_data (perl_code)

Function call template:
```
Data::Cmp::cmp_data(<data1>, <data2>)
```
Data::Cmp::Numeric::cmp_data (perl_code)

Function call template:
```
Data::Cmp::Numeric::cmp_data(<data1>, <data2>)
```
Data::Cmp::StrOrNumeric::cmp_data (perl_code)

Function call template:
```
Data::Cmp::StrOrNumeric::cmp_data(<data1>, <data2>)
```
cmp (perl_code)

Code template:
```
<data1> cmp <data2>
```
<=> (perl_code)

Code template:
```
<data1> <=> <data2>
```

BENCHMARK DATASETS

nums

SAMPLE BENCHMARK RESULTS

Run on: perl: v5.34.0, CPU: Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (2 cores), OS: GNU/Linux Ubuntu version 20.04, OS kernel: Linux version 5.4.0-91-generic.

Benchmark with default options (bencher -m Scalar::Cmp):

#table1#
+-----------------------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| participant                       | rate (/s) | time (ns) | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+-----------------------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| Data::Cmp::StrOrNumeric::cmp_data |   1130000 |    884    |                 0.00% |             46435.26% | 3.5e-10 |      29 |
| Data::Cmp::cmp_data               |   1463500 |    683.29 |                29.38% |             35867.99% | 5.8e-12 |      20 |
| Data::Cmp::Numeric::cmp_data      |   1506800 |    663.64 |                33.21% |             34833.49% | 5.8e-12 |      20 |
| Scalar::Cmp::cmpstrornum_scalar   |   1514500 |    660.3  |                33.89% |             34657.51% | 5.8e-12 |      20 |
| Scalar::Cmp::cmp_scalar           |   2140000 |    467    |                89.43% |             24465.31% | 1.9e-10 |      24 |
| Scalar::Cmp::cmpnum_scalar        |   2307000 |    433.4  |               103.98% |             22713.74% | 5.7e-12 |      20 |
| cmp                               | 200000000 |      6    |             14167.58% |               226.16% | 7.3e-10 |      20 |
| <=>                               | 530000000 |      1.9  |             46435.26% |                 0.00% | 1.4e-11 |      20 |
+-----------------------------------+-----------+-----------+-----------------------+-----------------------+---------+---------+

Formatted as Benchmark.pm result:

                                           Rate  Data::Cmp::StrOrNumeric::cmp_data  Data::Cmp::cmp_data  Data::Cmp::Numeric::cmp_data  Scalar::Cmp::cmpstrornum_scalar  Scalar::Cmp::cmp_scalar  Scalar::Cmp::cmpnum_scalar   cmp   <=> 
 Data::Cmp::StrOrNumeric::cmp_data    1130000/s                                 --                 -22%                          -24%                             -25%                     -47%                        -50%  -99%  -99% 
 Data::Cmp::cmp_data                  1463500/s                                29%                   --                           -2%                              -3%                     -31%                        -36%  -99%  -99% 
 Data::Cmp::Numeric::cmp_data         1506800/s                                33%                   2%                            --                               0%                     -29%                        -34%  -99%  -99% 
 Scalar::Cmp::cmpstrornum_scalar      1514500/s                                33%                   3%                            0%                               --                     -29%                        -34%  -99%  -99% 
 Scalar::Cmp::cmp_scalar              2140000/s                                89%                  46%                           42%                              41%                       --                         -7%  -98%  -99% 
 Scalar::Cmp::cmpnum_scalar           2307000/s                               103%                  57%                           53%                              52%                       7%                          --  -98%  -99% 
 cmp                                200000000/s                             14633%               11288%                        10960%                           10905%                    7683%                       7123%    --  -68% 
 <=>                                530000000/s                             46426%               35862%                        34828%                           34652%                   24478%                      22710%  215%    -- 

Legends:
  <=>: participant=<=>
  Data::Cmp::Numeric::cmp_data: participant=Data::Cmp::Numeric::cmp_data
  Data::Cmp::StrOrNumeric::cmp_data: participant=Data::Cmp::StrOrNumeric::cmp_data
  Data::Cmp::cmp_data: participant=Data::Cmp::cmp_data
  Scalar::Cmp::cmp_scalar: participant=Scalar::Cmp::cmp_scalar
  Scalar::Cmp::cmpnum_scalar: participant=Scalar::Cmp::cmpnum_scalar
  Scalar::Cmp::cmpstrornum_scalar: participant=Scalar::Cmp::cmpstrornum_scalar
  cmp: participant=cmp

Benchmark module startup overhead (bencher -m Scalar::Cmp --module-startup):

#table2#
+-------------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
| participant             | time (ms) | mod_overhead_time | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+-------------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+
| Data::Cmp::StrOrNumeric |      10.1 |               4   |                 0.00% |                65.39% | 6.7e-06 |      20 |
| Data::Cmp::Numeric      |      10   |               3.9 |                 0.44% |                64.67% | 1.8e-05 |      20 |
| Data::Cmp               |      10   |               3.9 |                 0.57% |                64.44% | 9.4e-06 |      20 |
| Scalar::Cmp             |      10   |               3.9 |                 0.91% |                63.90% | 1.7e-05 |      20 |
| perl -e1 (baseline)     |       6.1 |               0   |                65.39% |                 0.00% | 1.5e-05 |      20 |
+-------------------------+-----------+-------------------+-----------------------+-----------------------+---------+---------+

Formatted as Benchmark.pm result:

                         Rate  DC:S  DC:N  D:C  S:C  perl -e1 (baseline) 
 DC:S                  99.0/s    --    0%   0%   0%                 -39% 
 DC:N                 100.0/s    1%    --   0%   0%                 -39% 
 D:C                  100.0/s    1%    0%   --   0%                 -39% 
 S:C                  100.0/s    1%    0%   0%   --                 -39% 
 perl -e1 (baseline)  163.9/s   65%   63%  63%  63%                   -- 

Legends:
  D:C: mod_overhead_time=3.9 participant=Data::Cmp
  DC:N: mod_overhead_time=3.9 participant=Data::Cmp::Numeric
  DC:S: mod_overhead_time=4 participant=Data::Cmp::StrOrNumeric
  S:C: mod_overhead_time=3.9 participant=Scalar::Cmp
  perl -e1 (baseline): mod_overhead_time=0 participant=perl -e1 (baseline)

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

BENCHMARK NOTES

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Bencher-Scenario-Scalar-Cmp.

SOURCE

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

AUTHOR

perlancar <perlancar@cpan.org>

CONTRIBUTING

To contribute, you can send patches by email/via RT, or send pull requests on GitHub.

Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:

% prove -l

If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.

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.

BUGS

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

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.

To install Bencher::Scenario::Scalar::Cmp, copy and paste the appropriate command in to your terminal.

cpanm

cpanm Bencher::Scenario::Scalar::Cmp

CPAN shell

perl -MCPAN -e shell
install Bencher::Scenario::Scalar::Cmp

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

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