Systems Design

This document examines how solutions must evolve as systems grow from simple scripts to complex distributed applications. It demonstrates technology progression through a Secret Santa example, starting with CSV files, advancing through SQLite and database servers, adding caching layers, and ultimately scaling to cloud-based distributed architectures with load balancing.

This document examines performance troubleshooting in large-scale distributed systems with multiple interconnected components. It covers identifying bottlenecks through monitoring infrastructure, optimizing database operations with proper indexing, implementing caching and distribution strategies addressing CPU saturation, and simplifying unnecessarily complex architectures.