Profiling

There are many Python packages for profiling CPU and memory usage

Figure 1: Comparison of Python profilers (Berger 2020)

PyCharm Integration

• Based on cProfiler package

• Requires PyCharm Professional License (free for students and teachers)

• Video: PyCharm Profiler Demo

Jupyter notebooks

• Use the %%timeit magic command to measure execution time of a cell

Scalene

• Scalene: a high-performance CPU, GPU and memory profiler for Python.

• GitHub: Scalene

• Video: Scalene Demo

Demo

Install scalene using pip

pip install scalene

Run profiling.

scalene program.py

Get command line output

scalene --cli program.py

References

Berger, E. D. (2020). Scalene: Scripting-language aware profiling for python. arXiv preprint arXiv:2006.03879.