High Performance Architecture Of Stack Overflow
summary
Claim: a question page renders in 10ms per page while the site handles 1.2 billion page views/month on only nine web servers. Architecture uses C#, SQL Server, Redis, ElasticSearch, an open-source observer dashboard for timing, heavy global/static in-memory caches to avoid GC churn, and a specialized tag index. Build‑measure‑analyze cycles drive optimizations, about four to five deployments per day, storage-heavy servers with many disks, minimal unit testing, and practical tradeoffs (e.g. caching objects to avoid allocation) that make the numbers real.
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chapters (8)
- 0:00Start
- 0:46Follow along
- 8:04Stack Exchange network (web servers)
- 24:51Dependency Injection
- 26:17I DON'T ALWAYS TEST MY CODE
- 28:35HIRE HACKERS
- 28:49BOSS MODE TOOLS
- 29:50Conclusion
