Unverified50% confidenceFactExact time
membarrier提供多种操作模式，MEMBARRIER_CMD_GLOBAL对系统内所有线程执行内存屏障，MEMBARRIER_CMD_PRIVATE_EXPEDITED只针对当前进程的线程且延迟更低
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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