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Bencher-Scenario-ComparingArrays-0.001
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NAME

Bencher::Scenario::ComparingArrays - Modules that compare arrays

VERSION

This document describes version 0.001 of Bencher::Scenario::ComparingArrays (from Perl distribution Bencher-Scenario-ComparingArrays), released on 2019-03-24.

SYNOPSIS

To run benchmark with default option:

% bencher -m ComparingArrays

To run module startup overhead benchmark:

% bencher --module-startup -m ComparingArrays

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.

Array::Compare 3.0.2

Arrays::Same 0.002

Data::Cmp 0.006

BENCHMARK PARTICIPANTS

  • Data::Cmp::cmp_data (perl_code) [int, str]

    Function call template:

    Data::Cmp::cmp_data(<array1>, <array2>)

  • Array::Compare (perl_code) [int, str]

    Code template:

    Array::Compare->new()->compare(<array1>, <array2>)

  • Arrays::Same::arrays_same_i (perl_code) [int]

    Function call template:

    Arrays::Same::arrays_same_i(<array1>, <array2>)

  • Arrays::Same::arrays_same_s (perl_code) [str]

    Function call template:

    Arrays::Same::arrays_same_s(<array1>, <array2>)

  • loop (perl_code) [int]

    Code template:

    my $a1=<array1>; my $a2=<array2>; return 0 unless @$a1 == @$a2; for (0..$#{$a1}) { return 0 if $a1->[$_] != $a2->[$_] } 1

  • loop (perl_code) [str]

    Code template:

    my $a1=<array1>; my $a2=<array2>; return 0 unless @$a1 == @$a2; for (0..$#{$a1}) { return 0 if $a1->[$_] ne $a2->[$_] } 1

BENCHMARK DATASETS

  • empty

  • 10-int-same

  • 10-str-same

  • 100-int-same

  • 100-str-same

  • 1000-int-same

  • 1000-str-same

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 ComparingArrays):

#table1#
+-----------------------------+---------------+----------+-----------+-----------+------------+---------+---------+
| participant                 | dataset       | p_tags   | rate (/s) | time (μs) | vs_slowest |  errors | samples |
+-----------------------------+---------------+----------+-----------+-----------+------------+---------+---------+
| Data::Cmp::cmp_data         | 1000-str-same | int, str |    1100   |  890      |     1      | 2.5e-06 |      20 |
| Data::Cmp::cmp_data         | 1000-int-same | int, str |    1200   |  850      |     1      |   3e-06 |      22 |
| Array::Compare              | 1000-int-same | int, str |    2000   |  500      |     2      | 5.5e-06 |      21 |
| Array::Compare              | 1000-str-same | int, str |    2200   |  460      |     1.9    | 7.4e-07 |      30 |
| loop                        | 1000-str-same | str      |    4770   |  210      |     4.25   | 1.6e-07 |      20 |
| loop                        | 1000-int-same | int      |    7300   |  140      |     6.5    | 2.1e-07 |      20 |
| Arrays::Same::arrays_same_s | 1000-str-same | str      |    7819.1 |  127.89   |     6.9661 | 1.5e-10 |      20 |
| Data::Cmp::cmp_data         | 100-str-same  | int, str |   10900   |   91.9    |     9.69   | 2.4e-08 |      24 |
| Data::Cmp::cmp_data         | 100-int-same  | int, str |   11000   |   87      |    10      | 2.1e-07 |      20 |
| Array::Compare              | 100-int-same  | int, str |   15000   |   68      |    13      | 1.1e-07 |      20 |
| Array::Compare              | 100-str-same  | int, str |   16000   |   62      |    14      | 2.4e-07 |      20 |
| Arrays::Same::arrays_same_i | 1000-int-same | int      |   19000   |   52.5    |    17      | 2.5e-08 |      22 |
| Array::Compare              | 10-int-same   | int, str |   43000   |   23      |    38      | 2.7e-08 |      20 |
| Array::Compare              | 10-str-same   | int, str |   45000   |   22      |    40      | 2.7e-08 |      20 |
| loop                        | 100-str-same  | str      |   47900   |   20.9    |    42.7    | 6.7e-09 |      20 |
| Array::Compare              | empty         | int, str |   55000   |   18      |    49      |   8e-08 |      20 |
| loop                        | 100-int-same  | int      |   73000   |   13.7    |    65.1    |   6e-09 |      25 |
| Arrays::Same::arrays_same_s | 100-str-same  | str      |   79000   |   13      |    70      | 8.3e-08 |      27 |
| Data::Cmp::cmp_data         | 10-str-same   | int, str |   88000   |   11      |    78      | 1.3e-08 |      20 |
| Data::Cmp::cmp_data         | 10-int-same   | int, str |   89940   |   11.12   |    80.13   | 2.3e-10 |      23 |
| Arrays::Same::arrays_same_i | 100-int-same  | int      |  180000   |    5.4    |   160      |   2e-08 |      21 |
| loop                        | 10-str-same   | str      |  377320   |    2.6503 |   336.16   | 1.1e-11 |      20 |
| Data::Cmp::cmp_data         | empty         | int, str |  390000   |    2.6    |   350      | 3.3e-09 |      20 |
| loop                        | 10-int-same   | int      |  527000   |    1.9    |   469      | 8.3e-10 |      20 |
| Arrays::Same::arrays_same_s | 10-str-same   | str      |  649000   |    1.54   |   578      | 2.3e-10 |      20 |
| Arrays::Same::arrays_same_i | 10-int-same   | int      | 1200000   |    0.82   |  1100      | 1.7e-09 |      20 |
| loop                        | empty         | str      | 2100000   |    0.47   |  1900      | 2.5e-09 |      23 |
| loop                        | empty         | int      | 2260000   |    0.442  |  2020      | 2.1e-10 |      20 |
| Arrays::Same::arrays_same_s | empty         | str      | 4800000   |    0.21   |  4200      | 4.2e-10 |      20 |
| Arrays::Same::arrays_same_i | empty         | int      | 4900000   |    0.21   |  4300      | 4.2e-10 |      20 |
+-----------------------------+---------------+----------+-----------+-----------+------------+---------+---------+

Benchmark module startup overhead (bencher -m ComparingArrays --module-startup):

#table2#
+---------------------+-----------+------------------------+------------+---------+---------+
| participant         | time (ms) | mod_overhead_time (ms) | vs_slowest |  errors | samples |
+---------------------+-----------+------------------------+------------+---------+---------+
| Array::Compare      |      53.5 |                   48.8 |        1   | 3.2e-05 |      20 |
| Arrays::Same        |       8.9 |                    4.2 |        6   | 3.3e-05 |      20 |
| Data::Cmp           |       8.5 |                    3.8 |        6.3 | 2.4e-05 |      20 |
| perl -e1 (baseline) |       4.7 |                    0   |       11   | 1.8e-05 |      20 |
+---------------------+-----------+------------------------+------------+---------+---------+

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-Scenario-ComparingArrays.

SOURCE

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

BUGS

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

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) 2019 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.