OHC

JD Retail Technology

May 7, 2024 · Backend Development

Off‑Heap Cache (OHC) Practice: Reducing JVM GC Impact and Boosting C‑Side Interface Throughput

This article explains how using an off‑heap local cache (OHC) can dramatically lower GC pauses and cut interface latency by up to tenfold, covering the underlying principles, configuration, custom serializers, performance testing, monitoring metrics, and practical optimization recommendations for high‑traffic Java backend services.