#Performance

3 articles tagged with Performance.

CDN Cache Invalidation — Strategies That Don't Break in Production

There are two hard problems in computer science." We've worked on the cache-invalidation one for a while. The patterns that hold up at scale and the ones that look clean and aren't.

Postgres Connection Pooling — PgBouncer in Front of RDS

Why Postgres connection limits bite at unexpected times, the pooling layer we put in front, and the pool-mode tradeoffs we learned the hard way.

Postgres Autovacuum — Tuning From Production Stalls

A 2 AM incident, the autovacuum settings that caused it, and the parameter changes that prevented the next one. The discipline that took our biggest Postgres host from periodic stalls to steady.

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