Performance Profile Index
For v8.pl
  Run on Fri Jan 3 17:55:13 2020
Reported on Fri Jan 3 17:55:28 2020

Profile of v8.pl for 5.78s (of 13.7s), executing 12121719 statements and 500 subroutine calls in 13 source files and 3 string evals.
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The Flame Graph above is a visualization of the time spent in distinct call stacks. The colors and x-axis position are not meaningful.

Top 15 Subroutines
Calls P F Exclusive
Time
Inclusive
Time
Subroutine
23115.77s5.77smain::::lengthen main::lengthen
1112.12ms3.15msmain::::BEGIN@29 main::BEGIN@29
1112.05ms2.16msFunction::Parameters::::BEGIN@6Function::Parameters::BEGIN@6
1111.23ms4.32msmain::::BEGIN@28 main::BEGIN@28
1111.15ms1.15msmain::::BEGIN@27 main::BEGIN@27
111606µs835µsData::Dumper::::BEGIN@277 Data::Dumper::BEGIN@277
111542µs702µsFunction::Parameters::::BEGIN@7Function::Parameters::BEGIN@7
333250µs250µsXSLoader::::load XSLoader::load
111220µs243µsmain::::BEGIN@26 main::BEGIN@26
2421213µs213µsmain::::CORE:say main::CORE:say (opcode)
111107µs108µsData::Dumper::::BEGIN@761 Data::Dumper::BEGIN@761
111100µs158µsconstant::::BEGIN@4 constant::BEGIN@4
33257µs60µsExporter::::import Exporter::import
11153µs103µsFunction::Parameters::::importFunction::Parameters::import
11152µs55µswarnings::::register_categories warnings::register_categories

You can view a treemap of subroutine exclusive time, grouped by package.
NYTProf also generates call-graph files in Graphviz format: inter-package calls, all inter-subroutine calls.

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Source Code Files — ordered by exclusive time then name
StmtsExclusive
Time
ReportsSource File
121210085.77sline/homes/dcw/public_html/PSD/article13/v8.pl
432.30mslineData/Dumper.pm
622.06mslineCarp.pm (including 1 string eval)
1931.50mslineFunction/Parameters.pm
63701µslineconstant.pm
16403µslineList/Util.pm (including 1 string eval)
16218µslineScalar/Util.pm (including 1 string eval)
124170µslinestrict.pm
142154µslinewarnings.pm
5369µslineExporter.pm
46µslinebytes.pm
86µslinewarnings/register.pm
00slineXSLoader.pm
121217325.78sTotal (-13 statements are unaccounted for)
932440445msAverage
402µsMedian
0.00040Deviation