Talk Python To Me #479: Designing Effective Load Tests for Your Python App
43 snips
Oct 6, 2024 In this engaging discussion, Anthony Shaw, Python advocacy lead at Microsoft and creator of the VS Code Pets extension, shares insights on load testing for web applications. He emphasizes the importance of simulating realistic user behavior to prevent app failures during high-traffic events. Shaw explores tools like Locust and Playwright, and discusses managing resource usage and response times. He highlights the necessity of realistic data generation with Mimesis and introduces observability tools like OpenTelemetry to enhance performance monitoring.
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Census Crash
- Australia's online census crashed due to everyone trying to complete it on the last night.
- They hadn't anticipated this predictable spike in traffic.
Unexpected Serverless Bill
- An artist's serverless web app incurred a $96,000 Vercel bill.
- It went viral at the height of the AI art boom, highlighting serverless cost issues.
Realistic Load Tests
- Don't just test requests per second; simulate real user behavior.
- Consider user flows, pauses, and different data inputs for accurate load testing.
