Make It Fast
summary
A performance case study describing multiple production fixes: resolving an 18-second cache-timing mismatch that broke hourly caches under 19,000 concurrent users; replacing an in-memory cache library (which suffered atomic spinloop contention) to reduce rack count; mitigating server-side React rendering overloads (normal ~16 req/s spiking to ~2,000 req/s from abusive clients) by banning user-agent patterns; and moving product reads to a Kafka-fed denormalized store to drop API p95 from 1.5s to 0.5s.
AI-written summary · about
chapters (8)
- 0:00Introduction
- 3:19Black Friday cache issues
- 7:56Clodjer library atoms
- 14:21Halloween data center move
- 22:59Bot attack DDoS protection
- 25:30Footer update problems
- 27:39Database query optimization
- 30:11Q&A
