Scalability Basics

Summary

The general practice of designing a system so it keeps working well as load (users, data, traffic) grows — a core concern once you move beyond a single-server hobby project.

• 1Identify the current bottleneck (CPU, memory, database, network) in a project you've built.
• 2Learn the difference between scaling for more users vs scaling for more data.
• 3Understand premature scaling is a real cost — most projects don't need this on day one.