Lesson 11: Load Testing and Optimization
Building Production-Ready Performance Validation for Twitter MVP
Welcome to one of the most exciting lessons in our Twitter system design journey! Today we're going to build something that separates hobby projects from production systems - a comprehensive load testing suite that can handle 1,000 real users while keeping everything running smoothly.
What We're Building Today
Think of load testing like a dress rehearsal before opening night. We're going to stress-test our Twitter MVP to make sure it can handle real users without crashing. By the end of this lesson, you'll have:
A realistic user behavior simulator that acts like actual Twitter users
Real-time performance monitoring that shows bottlenecks as they happen
Database optimization tools that automatically tune for better performance
An automated system that detects problems before users notice them
