Command of the day: hotspot2calltree
Today, the command of the day is hotspot2calltree.
I do like a lot using kcachegrind to tune my C++ code. You can use KCacheGrind to navigate through the actual function calls in a given execution of your program and seeing very graphically where the time is spent.
Today i needed to optimize some python code but that’s not C++ code. No problem. Add in your code this:
import hotshot prof = hotshot.Profile("profile.hotspot") prof.runcall(myFunction) prof.close()
And then, at the shell:
$ sudo apt-get install kcachegrind-converters $ hotspot2calltree -o profile.callgrind profile.hotspot $ kcachegrind profile.callgrind
And now you get a nice kcachegrind profile you can navigate on.