#Load Testing

2 posts

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  FCFS Load Test Retrospective: Things Easy to Miss in Practice

  Mar 25, 2026

  Problems we hit while k6-testing 4 FCFS strategies — Rate Limiter conflicts, queue over-counting bugs. Plus 4 ways to isolate FCFS APIs from regular APIs in production: separate DataSource, Redis offloading, service separation, and Bulkhead pattern.

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  FCFS System Showdown: Load Testing All Approaches with k6

  Mar 24, 2026

  DB Lock, Redis, Queue, Token — we load-tested all 4 FCFS strategies under identical conditions (100 stock, 100/500/1,000/2,000 concurrent users) with k6. Each scenario ran 10 times to get stable averages for TPS, P95/P99 response times, and we identify the optimal strategy for each situation.