psrecord

https://github.com/astrofrog/psrecord

A simple tool that automates measuring the memory and CPU usage of a process.

I wrote a bit about how to do this using a bash script and ps a long time ago, but psrecord wraps it up into a useful package.

To measure the performance of make webpack on a project I'm working on, I:

• installed it with pip install psrecord
• Ran psrecord "make webpack" --log record.log --plot plot.png --include-children

And got out both a log file and this useful chart: