Ops Development & AI Practice

Sep 29, 2026 · Backend Development

Linux CPU & Memory Tuning: Prevent Freezes, Direct Reclaim Storms & CFS Throttling

This article details Linux kernel memory and CPU tuning techniques for high-concurrency systems, covering watermark scaling to avoid direct reclaim storms, dirty page writeback thresholds, swap and overcommit settings, transparent huge page pitfalls, NUMA zone reclaim, CPU governor and IRQ affinity, and Kubernetes CFS quota throttling solutions.