Aug 16, 2026 · Backend Development

Why Disruptor’s Ring Buffer Beats BlockingQueue: Zero‑Copy, False‑Sharing Elimination, and Cache‑Line Padding

The article dissects how Disruptor’s ring‑buffer architecture outperforms traditional BlockingQueue by eliminating lock contention, dynamic allocation, and cache‑line interference through pre‑allocated zero‑copy buffers, CAS‑based sequencing, cache‑line padding, batch processing, and tailored wait strategies, achieving millions of TPS.

BlockingQueueCache line paddingDisruptor

0 likes · 13 min read

Why Disruptor’s Ring Buffer Beats BlockingQueue: Zero‑Copy, False‑Sharing Elimination, and Cache‑Line Padding

Java Backend Technology

Aug 9, 2018 · Fundamentals

How False Sharing Slows Java Programs and How Cache Line Padding Boosts Performance

This article explains the concept of false sharing in Java, demonstrates its dramatic impact on multithreaded performance, and shows how adding cache‑line padding variables can eliminate write‑contention, turning a 5‑to‑1 slowdown into a significant speedup.

Cache line paddingFalse sharingJava concurrency

0 likes · 9 min read

How False Sharing Slows Java Programs and How Cache Line Padding Boosts Performance