How do you track down a performance bottleneck in Python code? What's the most telling case from your own experience?
~4 min by voice
How to approach it
They're checking whether you have the "measure first, then optimize" discipline, whether you can pick the right tool for the situation (local or production, CPU or I/O), and whether you can back up your experience with a real case and before-and-after numbers.
The interviewer will ask this question and listen. Think out loud and ask for a hint if you need one. When you're done, pause or tap “That's my answer”. In about a minute, your score and the points you covered show up here.