CFS Quota Throttling & Silent OOMKills: The Fallacy of Kubernetes CPU Limits

Setting hard CPU limits on latency-sensitive microservices destroys p99 response times while average utilization appears deceptively low. Here is how Linux CFS quotas, Go GOMAXPROCS, and GOMEMLIMIT actually behave under load.

September 28, 2026 · 8 min · Hanh Pham