Test::Timer is a Perl test module that can assist in specifying timing thresholds for code execution. You can then specify that your test suite should break if the code takes too little or too much time.
The concept requested was simple, in the diagnostic messages emitted from the module, the thresholds specified should be mentioned. The implementation did not take long to implement.
However since the diagnostic messages was changed and somebody might be relying on these I decided to make it a major release to indicate this somewhat breaking change.
Thanks to Nigel Horne for the issue report I hope the implementation meets your needs and expectations.
Test::Timer 1.00 has been uploaded to CPAN, feedback most welcome.
Have a nice weekend,