NAME

Bencher::Scenario::Perl::Startup - Benchmark startup time of perls

VERSION

This document describes version 0.054 of Bencher::Scenario::Perl::Startup (from Perl distribution Bencher-Scenario-Perl-Startup), released on 2023-07-08.

SYNOPSIS

To run benchmark with default option:

% bencher -m Perl::Startup

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

DESCRIPTION

Conclusion: in general newer versions of perl has larger startup overhead than previous ones. If startup overhead is important to you, use -e instead of -E unless necessary.

BENCHMARK PARTICIPANTS

  • perl-5.38.0 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.38.0/bin/perl -e1
  • perl-5.38.0 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.38.0/bin/perl -E1
  • perl-5.36.1 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.36.1/bin/perl -e1
  • perl-5.36.1 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.36.1/bin/perl -E1
  • perl-5.34.1 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.34.1/bin/perl -e1
  • perl-5.34.1 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.34.1/bin/perl -E1
  • perl-5.34.0 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.34.0/bin/perl -e1
  • perl-5.34.0 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.34.0/bin/perl -E1
  • perl-5.32.1 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.32.1/bin/perl -e1
  • perl-5.32.1 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.32.1/bin/perl -E1
  • perl-5.30.3 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.30.3/bin/perl -e1
  • perl-5.30.3 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.30.3/bin/perl -E1
  • perl-5.28.3 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.28.3/bin/perl -e1
  • perl-5.28.3 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.28.3/bin/perl -E1
  • perl-5.26.3 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.26.3/bin/perl -e1
  • perl-5.26.3 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.26.3/bin/perl -E1
  • perl-5.24.4 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.24.4/bin/perl -e1
  • perl-5.24.4 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.24.4/bin/perl -E1
  • perl-5.20.3 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.20.3/bin/perl -e1
  • perl-5.20.3 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.20.3/bin/perl -E1
  • perl-5.18.4 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.18.4/bin/perl -e1
  • perl-5.18.4 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.18.4/bin/perl -E1
  • perl-5.16.3 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.16.3/bin/perl -e1
  • perl-5.16.3 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.16.3/bin/perl -E1
  • perl-5.14.4 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.14.4/bin/perl -e1
  • perl-5.14.4 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.14.4/bin/perl -E1
  • perl-5.12.5 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.12.5/bin/perl -e1
  • perl-5.12.5 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.12.5/bin/perl -E1
  • perl-5.10.1 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.10.1/bin/perl -e1
  • perl-5.10.1 -E1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.10.1/bin/perl -E1
  • perl-5.8.9 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.8.9/bin/perl -e1
  • perl-5.6.2 -e1 (command)

    Command line:

    /home/u1/perl5/perlbrew/perls/perl-5.6.2/bin/perl -e1

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 Perl::Startup):

#table1#
+-----------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| participant     | rate (/s) | time (ms) | pct_faster_vs_slowest | pct_slower_vs_fastest |  errors | samples |
+-----------------+-----------+-----------+-----------------------+-----------------------+---------+---------+
| perl-5.38.0 -E1 |       143 |      7.01 |                 0.00% |                26.34% | 3.5e-06 |      21 |
| perl-5.36.1 -E1 |       143 |      7.01 |                 0.04% |                26.29% | 2.9e-06 |      20 |
| perl-5.34.0 -E1 |       149 |      6.73 |                 4.16% |                21.29% | 3.3e-06 |      23 |
| perl-5.32.1 -E1 |       149 |      6.73 |                 4.20% |                21.25% |   3e-06 |      20 |
| perl-5.34.1 -E1 |       149 |      6.72 |                 4.30% |                21.13% | 4.6e-06 |      21 |
| perl-5.30.3 -E1 |       150 |      6.68 |                 5.02% |                20.30% | 3.1e-06 |      20 |
| perl-5.24.4 -E1 |       152 |      6.59 |                 6.43% |                18.71% | 3.4e-06 |      20 |
| perl-5.28.3 -E1 |       152 |      6.58 |                 6.59% |                18.53% | 3.8e-06 |      20 |
| perl-5.26.3 -E1 |       154 |      6.5  |                 7.89% |                17.10% |   2e-06 |      21 |
| perl-5.20.3 -E1 |       157 |      6.38 |                 9.89% |                14.97% | 2.2e-06 |      20 |
| perl-5.18.4 -E1 |       159 |      6.27 |                11.78% |                13.03% | 3.1e-06 |      20 |
| perl-5.16.3 -E1 |       160 |      6.24 |                12.43% |                12.37% |   4e-06 |      23 |
| perl-5.12.5 -E1 |       163 |      6.13 |                14.37% |                10.47% | 5.2e-06 |      20 |
| perl-5.14.4 -E1 |       164 |      6.11 |                14.69% |                10.16% | 5.1e-06 |      20 |
| perl-5.10.1 -E1 |       166 |      6.02 |                16.53% |                 8.42% | 3.9e-06 |      21 |
| perl-5.32.1 -e1 |       166 |      6.01 |                16.63% |                 8.33% | 4.1e-06 |      22 |
| perl-5.30.3 -e1 |       170 |      6    |                16.69% |                 8.27% |   1e-05 |      20 |
| perl-5.34.1 -e1 |       170 |      6    |                16.83% |                 8.14% | 6.3e-06 |      20 |
| perl-5.36.1 -e1 |       167 |      5.99 |                16.95% |                 8.03% | 3.1e-06 |      21 |
| perl-5.38.0 -e1 |       167 |      5.98 |                17.22% |                 7.78% | 4.2e-06 |      20 |
| perl-5.34.0 -e1 |       167 |      5.97 |                17.41% |                 7.61% |   4e-06 |      20 |
| perl-5.28.3 -e1 |       170 |      5.9  |                18.23% |                 6.86% | 7.2e-06 |      21 |
| perl-5.20.3 -e1 |       169 |      5.92 |                18.39% |                 6.71% | 5.3e-06 |      20 |
| perl-5.26.3 -e1 |       170 |      5.9  |                19.02% |                 6.15% |   1e-05 |      20 |
| perl-5.24.4 -e1 |       170 |      5.9  |                19.08% |                 6.10% | 1.5e-05 |      20 |
| perl-5.18.4 -e1 |       172 |      5.82 |                20.55% |                 4.80% | 4.1e-06 |      20 |
| perl-5.12.5 -e1 |       170 |      5.8  |                21.35% |                 4.11% |   1e-05 |      21 |
| perl-5.14.4 -e1 |       173 |      5.77 |                21.42% |                 4.05% | 4.7e-06 |      20 |
| perl-5.16.3 -e1 |       170 |      5.8  |                21.47% |                 4.01% | 8.3e-06 |      20 |
| perl-5.10.1 -e1 |       180 |      5.7  |                22.72% |                 2.95% | 6.2e-06 |      20 |
| perl-5.8.9 -e1  |       180 |      5.7  |                23.96% |                 1.92% | 9.6e-06 |      20 |
| perl-5.6.2 -e1  |       180 |      5.5  |                26.34% |                 0.00% | 9.1e-06 |      20 |
+-----------------+-----------+-----------+-----------------------+-----------------------+---------+---------+

Formatted as Benchmark.pm result:

                   Rate  perl-5.38.0 -E1  perl-5.36.1 -E1  perl-5.34.0 -E1  perl-5.32.1 -E1  perl-5.34.1 -E1  perl-5.30.3 -E1  perl-5.24.4 -E1  perl-5.28.3 -E1  perl-5.26.3 -E1  perl-5.20.3 -E1  perl-5.18.4 -E1  perl-5.16.3 -E1  perl-5.12.5 -E1  perl-5.14.4 -E1  perl-5.10.1 -E1  perl-5.32.1 -e1  perl-5.30.3 -e1  perl-5.34.1 -e1  perl-5.36.1 -e1  perl-5.38.0 -e1  perl-5.34.0 -e1  perl-5.20.3 -e1  perl-5.28.3 -e1  perl-5.26.3 -e1  perl-5.24.4 -e1  perl-5.18.4 -e1  perl-5.12.5 -e1  perl-5.16.3 -e1  perl-5.14.4 -e1  perl-5.10.1 -e1  perl-5.8.9 -e1  perl-5.6.2 -e1 
 perl-5.38.0 -E1  143/s               --               0%              -3%              -3%              -4%              -4%              -5%              -6%              -7%              -8%             -10%             -10%             -12%             -12%             -14%             -14%             -14%             -14%             -14%             -14%             -14%             -15%             -15%             -15%             -15%             -16%             -17%             -17%             -17%             -18%            -18%            -21% 
 perl-5.36.1 -E1  143/s               0%               --              -3%              -3%              -4%              -4%              -5%              -6%              -7%              -8%             -10%             -10%             -12%             -12%             -14%             -14%             -14%             -14%             -14%             -14%             -14%             -15%             -15%             -15%             -15%             -16%             -17%             -17%             -17%             -18%            -18%            -21% 
 perl-5.34.0 -E1  149/s               4%               4%               --               0%               0%               0%              -2%              -2%              -3%              -5%              -6%              -7%              -8%              -9%             -10%             -10%             -10%             -10%             -10%             -11%             -11%             -12%             -12%             -12%             -12%             -13%             -13%             -13%             -14%             -15%            -15%            -18% 
 perl-5.32.1 -E1  149/s               4%               4%               0%               --               0%               0%              -2%              -2%              -3%              -5%              -6%              -7%              -8%              -9%             -10%             -10%             -10%             -10%             -10%             -11%             -11%             -12%             -12%             -12%             -12%             -13%             -13%             -13%             -14%             -15%            -15%            -18% 
 perl-5.34.1 -E1  149/s               4%               4%               0%               0%               --               0%              -1%              -2%              -3%              -5%              -6%              -7%              -8%              -9%             -10%             -10%             -10%             -10%             -10%             -11%             -11%             -11%             -12%             -12%             -12%             -13%             -13%             -13%             -14%             -15%            -15%            -18% 
 perl-5.30.3 -E1  150/s               4%               4%               0%               0%               0%               --              -1%              -1%              -2%              -4%              -6%              -6%              -8%              -8%              -9%             -10%             -10%             -10%             -10%             -10%             -10%             -11%             -11%             -11%             -11%             -12%             -13%             -13%             -13%             -14%            -14%            -17% 
 perl-5.24.4 -E1  152/s               6%               6%               2%               2%               1%               1%               --               0%              -1%              -3%              -4%              -5%              -6%              -7%              -8%              -8%              -8%              -8%              -9%              -9%              -9%             -10%             -10%             -10%             -10%             -11%             -11%             -11%             -12%             -13%            -13%            -16% 
 perl-5.28.3 -E1  152/s               6%               6%               2%               2%               2%               1%               0%               --              -1%              -3%              -4%              -5%              -6%              -7%              -8%              -8%              -8%              -8%              -8%              -9%              -9%             -10%             -10%             -10%             -10%             -11%             -11%             -11%             -12%             -13%            -13%            -16% 
 perl-5.26.3 -E1  154/s               7%               7%               3%               3%               3%               2%               1%               1%               --              -1%              -3%              -3%              -5%              -5%              -7%              -7%              -7%              -7%              -7%              -7%              -8%              -8%              -9%              -9%              -9%             -10%             -10%             -10%             -11%             -12%            -12%            -15% 
 perl-5.20.3 -E1  157/s               9%               9%               5%               5%               5%               4%               3%               3%               1%               --              -1%              -2%              -3%              -4%              -5%              -5%              -5%              -5%              -6%              -6%              -6%              -7%              -7%              -7%              -7%              -8%              -9%              -9%              -9%             -10%            -10%            -13% 
 perl-5.18.4 -E1  159/s              11%              11%               7%               7%               7%               6%               5%               4%               3%               1%               --               0%              -2%              -2%              -3%              -4%              -4%              -4%              -4%              -4%              -4%              -5%              -5%              -5%              -5%              -7%              -7%              -7%              -7%              -9%             -9%            -12% 
 perl-5.16.3 -E1  160/s              12%              12%               7%               7%               7%               7%               5%               5%               4%               2%               0%               --              -1%              -2%              -3%              -3%              -3%              -3%              -4%              -4%              -4%              -5%              -5%              -5%              -5%              -6%              -7%              -7%              -7%              -8%             -8%            -11% 
 perl-5.12.5 -E1  163/s              14%              14%               9%               9%               9%               8%               7%               7%               6%               4%               2%               1%               --               0%              -1%              -1%              -2%              -2%              -2%              -2%              -2%              -3%              -3%              -3%              -3%              -5%              -5%              -5%              -5%              -7%             -7%            -10% 
 perl-5.14.4 -E1  164/s              14%              14%              10%              10%               9%               9%               7%               7%               6%               4%               2%               2%               0%               --              -1%              -1%              -1%              -1%              -1%              -2%              -2%              -3%              -3%              -3%              -3%              -4%              -5%              -5%              -5%              -6%             -6%             -9% 
 perl-5.10.1 -E1  166/s              16%              16%              11%              11%              11%              10%               9%               9%               7%               5%               4%               3%               1%               1%               --               0%               0%               0%               0%               0%               0%              -1%              -1%              -1%              -1%              -3%              -3%              -3%              -4%              -5%             -5%             -8% 
 perl-5.32.1 -e1  166/s              16%              16%              11%              11%              11%              11%               9%               9%               8%               6%               4%               3%               1%               1%               0%               --               0%               0%               0%               0%               0%              -1%              -1%              -1%              -1%              -3%              -3%              -3%              -3%              -5%             -5%             -8% 
 perl-5.30.3 -e1  170/s              16%              16%              12%              12%              11%              11%               9%               9%               8%               6%               4%               4%               2%               1%               0%               0%               --               0%               0%               0%               0%              -1%              -1%              -1%              -1%              -2%              -3%              -3%              -3%              -4%             -4%             -8% 
 perl-5.34.1 -e1  170/s              16%              16%              12%              12%              11%              11%               9%               9%               8%               6%               4%               4%               2%               1%               0%               0%               0%               --               0%               0%               0%              -1%              -1%              -1%              -1%              -2%              -3%              -3%              -3%              -4%             -4%             -8% 
 perl-5.36.1 -e1  167/s              17%              17%              12%              12%              12%              11%              10%               9%               8%               6%               4%               4%               2%               2%               0%               0%               0%               0%               --               0%               0%              -1%              -1%              -1%              -1%              -2%              -3%              -3%              -3%              -4%             -4%             -8% 
 perl-5.38.0 -e1  167/s              17%              17%              12%              12%              12%              11%              10%              10%               8%               6%               4%               4%               2%               2%               0%               0%               0%               0%               0%               --               0%              -1%              -1%              -1%              -1%              -2%              -3%              -3%              -3%              -4%             -4%             -8% 
 perl-5.34.0 -e1  167/s              17%              17%              12%              12%              12%              11%              10%              10%               8%               6%               5%               4%               2%               2%               0%               0%               0%               0%               0%               0%               --               0%              -1%              -1%              -1%              -2%              -2%              -2%              -3%              -4%             -4%             -7% 
 perl-5.20.3 -e1  169/s              18%              18%              13%              13%              13%              12%              11%              11%               9%               7%               5%               5%               3%               3%               1%               1%               1%               1%               1%               1%               0%               --               0%               0%               0%              -1%              -2%              -2%              -2%              -3%             -3%             -7% 
 perl-5.28.3 -e1  170/s              18%              18%              14%              14%              13%              13%              11%              11%              10%               8%               6%               5%               3%               3%               2%               1%               1%               1%               1%               1%               1%               0%               --               0%               0%              -1%              -1%              -1%              -2%              -3%             -3%             -6% 
 perl-5.26.3 -e1  170/s              18%              18%              14%              14%              13%              13%              11%              11%              10%               8%               6%               5%               3%               3%               2%               1%               1%               1%               1%               1%               1%               0%               0%               --               0%              -1%              -1%              -1%              -2%              -3%             -3%             -6% 
 perl-5.24.4 -e1  170/s              18%              18%              14%              14%              13%              13%              11%              11%              10%               8%               6%               5%               3%               3%               2%               1%               1%               1%               1%               1%               1%               0%               0%               0%               --              -1%              -1%              -1%              -2%              -3%             -3%             -6% 
 perl-5.18.4 -e1  172/s              20%              20%              15%              15%              15%              14%              13%              13%              11%               9%               7%               7%               5%               4%               3%               3%               3%               3%               2%               2%               2%               1%               1%               1%               1%               --               0%               0%               0%              -2%             -2%             -5% 
 perl-5.12.5 -e1  170/s              20%              20%              16%              16%              15%              15%              13%              13%              12%              10%               8%               7%               5%               5%               3%               3%               3%               3%               3%               3%               2%               2%               1%               1%               1%               0%               --               0%               0%              -1%             -1%             -5% 
 perl-5.16.3 -e1  170/s              20%              20%              16%              16%              15%              15%              13%              13%              12%              10%               8%               7%               5%               5%               3%               3%               3%               3%               3%               3%               2%               2%               1%               1%               1%               0%               0%               --               0%              -1%             -1%             -5% 
 perl-5.14.4 -e1  173/s              21%              21%              16%              16%              16%              15%              14%              14%              12%              10%               8%               8%               6%               5%               4%               4%               3%               3%               3%               3%               3%               2%               2%               2%               2%               0%               0%               0%               --              -1%             -1%             -4% 
 perl-5.10.1 -e1  180/s              22%              22%              18%              18%              17%              17%              15%              15%              14%              11%               9%               9%               7%               7%               5%               5%               5%               5%               5%               4%               4%               3%               3%               3%               3%               2%               1%               1%               1%               --              0%             -3% 
 perl-5.8.9 -e1   180/s              22%              22%              18%              18%              17%              17%              15%              15%              14%              11%               9%               9%               7%               7%               5%               5%               5%               5%               5%               4%               4%               3%               3%               3%               3%               2%               1%               1%               1%               0%              --             -3% 
 perl-5.6.2 -e1   180/s              27%              27%              22%              22%              22%              21%              19%              19%              18%              15%              13%              13%              11%              11%               9%               9%               9%               9%               8%               8%               8%               7%               7%               7%               7%               5%               5%               5%               4%               3%              3%              -- 

Legends:
  perl-5.10.1 -E1: participant=perl-5.10.1 -E1
  perl-5.10.1 -e1: participant=perl-5.10.1 -e1
  perl-5.12.5 -E1: participant=perl-5.12.5 -E1
  perl-5.12.5 -e1: participant=perl-5.12.5 -e1
  perl-5.14.4 -E1: participant=perl-5.14.4 -E1
  perl-5.14.4 -e1: participant=perl-5.14.4 -e1
  perl-5.16.3 -E1: participant=perl-5.16.3 -E1
  perl-5.16.3 -e1: participant=perl-5.16.3 -e1
  perl-5.18.4 -E1: participant=perl-5.18.4 -E1
  perl-5.18.4 -e1: participant=perl-5.18.4 -e1
  perl-5.20.3 -E1: participant=perl-5.20.3 -E1
  perl-5.20.3 -e1: participant=perl-5.20.3 -e1
  perl-5.24.4 -E1: participant=perl-5.24.4 -E1
  perl-5.24.4 -e1: participant=perl-5.24.4 -e1
  perl-5.26.3 -E1: participant=perl-5.26.3 -E1
  perl-5.26.3 -e1: participant=perl-5.26.3 -e1
  perl-5.28.3 -E1: participant=perl-5.28.3 -E1
  perl-5.28.3 -e1: participant=perl-5.28.3 -e1
  perl-5.30.3 -E1: participant=perl-5.30.3 -E1
  perl-5.30.3 -e1: participant=perl-5.30.3 -e1
  perl-5.32.1 -E1: participant=perl-5.32.1 -E1
  perl-5.32.1 -e1: participant=perl-5.32.1 -e1
  perl-5.34.0 -E1: participant=perl-5.34.0 -E1
  perl-5.34.0 -e1: participant=perl-5.34.0 -e1
  perl-5.34.1 -E1: participant=perl-5.34.1 -E1
  perl-5.34.1 -e1: participant=perl-5.34.1 -e1
  perl-5.36.1 -E1: participant=perl-5.36.1 -E1
  perl-5.36.1 -e1: participant=perl-5.36.1 -e1
  perl-5.38.0 -E1: participant=perl-5.38.0 -E1
  perl-5.38.0 -e1: participant=perl-5.38.0 -e1
  perl-5.6.2 -e1: participant=perl-5.6.2 -e1
  perl-5.8.9 -e1: participant=perl-5.8.9 -e1

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-Perl-Startup.

SOURCE

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

SEE ALSO

Bencher::Scenario::Interpreters

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 software is copyright (c) 2023, 2021 by perlancar <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.

BUGS

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

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.