Explain CPU-Bound vs I/O-Bound Work
Company: Anthropic
Role: Software Engineer
Category: Software Engineering Fundamentals
Difficulty: hard
Interview Round: Technical Screen
Define CPU-bound and I/O-bound workloads. Then compare how multithreading, asynchronous I/O, and multiprocessing behave for each type of workload, especially in Python.
Include:
- How to recognize each workload in practice.
- Concrete examples.
- How the Python GIL affects the choice.
- Which model fits tasks such as web crawling, parsing, and heavy computation.
Overview: This question evaluates understanding of CPU-bound versus I/O-bound workloads and their interaction with concurrency models such as multithreading, asynchronous I/O, and multiprocessing in Python, including the impact of the Global Interpreter Lock (GIL) and relevance to tasks like web crawling, parsing, and heavy computation.