Performance
Profiling, optimization, benchmarking
- 00 Performance Engineering — Roadmap Profiling with pprof and perf, flamegraphs, latency budgets, p99 thinking. beginner 3 min →
- 01 Latency Thinking P50 vs P99 vs P999, the tail latency problem, latency budgets, and why averages hide the failures that matter most. beginner 8 min →
- 02 Profiling Node.js --prof, Go pprof, Linux perf, and flamegraphs — finding where the time actually goes before guessing at optimizations. intermediate 11 min →
- 03 Database Performance Query plans, index strategy, N+1 queries, connection pool tuning — the database is almost always the bottleneck. intermediate 12 min →
- 04 Caching Cache levels, eviction policies, cache stampede, cache invalidation — and why caching is the most over-applied and under-thought optimization. intermediate 10 min →
- 05 Load Testing k6, autocannon, realistic traffic models, finding the breaking point — and why load testing in staging is different from production. intermediate 9 min →