This distribution only contains the programs to run the tests and according data. It uses a lot of libs from CPAN with all their dependencies but it does not contain invariant versions of those used dependency libs.
That means your performance output may change just because a far away lib that you upgraded in the meantime changes its performance.
If total invariance is important to you, you are responsible to provide that invariant environment by yourself. You could, for instance, create a local CPAN mirror with CPAN::Mini and never upgrade it. Then use that mirror for all your installations of Benchmark::Perl::Formance.
On the other side the current behaviour could be used to track the performance of your installation over time by continuously upgrading from CPAN. I always upgrade from CPAN whatever I can; so I consider that a feature.
INSTALLATION
To install this module, run the following commands:
perl Build.PL ./Build ./Build test ./Build install
SUPPORT AND DOCUMENTATION
After installing, you can find documentation for this module with the perldoc command.
perldoc Benchmark::Perl::Formance
You can also look for information at:
Search CPAN http://search.cpan.org/dist/Perl-Formance CPAN Request Tracker: http://rt.cpan.org/NoAuth/Bugs.html?Dist=Perl-Formance AnnoCPAN, annotated CPAN documentation: http://annocpan.org/dist/Perl-Formance CPAN Ratings: http://cpanratings.perl.org/d/Perl-Formance
COPYRIGHT AND LICENCE
Copyright (C) 2008-2010 Steffen Schwigon
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install Benchmark::Perl::Formance, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Benchmark::Perl::Formance
CPAN shell
perl -MCPAN -e shell install Benchmark::Perl::Formance
For more information on module installation, please visit the detailed CPAN module installation guide.