How to profile your perl code#

How to profile your perl code in order to point out the bottelneck performances. NYTProf is one of the library allowing such profiling. Let's look how to use it in 3 steps.

Step one: install NYTProf#

cpanm install Devel::NYTProf

You may want to have a look at the documentation. Either visit the metacpan or use perldoc:

perldoc Devel::NYTProf

Step two: launch your script in behalf of NYTProf#

perl -d:NYTProf my_perl_script.pl

The script with rum much slowly as usual because NYTProf is catching lot of information in background. Iw will create a file called nytprof.out

Step three: open the NYTProf output file#

nytprofhtml --open

It will open an html file containing plenty of performance information. Enjoy it !