Unverified50% confidenceFactExact time
RCU是Linux内核中经典的读多写少同步原语，读者可完全不加锁不执行屏障指令访问共享数据，写者更新后等待grace period才释放旧数据
1
Sources
50%
Confidence
Long-term
Relevance
7/8/2026
First Seen
Sources
C++ Asymmetric Memory Barriers: Principles, Implementation, and Engineering Applications
hackernewshackernews7/3/2026
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