py-spy

A sampling profiler for Python programs. More information: https://github.com/benfred/py-spy.

• Show a live view of the functions that take the most execution time of a running process:

py-spy top --pid pid

• Start a program and show a live view of the functions that take the most execution time:

py-spy top -- python path/to/file.py

• Produce an SVG flame graph of the function call execution time:

py-spy record -o path/to/profile.svg --pid pid

• Dump the call stack of a running process:

py-spy dump --pid pid