[KongchangAI]
Unverified50% confidenceFactExact time

ARM和POWER采用弱内存模型，允许几乎所有类型的内存操作重排，必须显式插入DMB或SYNC指令才能建立顺序保证

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

Related Claims

UnverifiedARM和POWER架构采用弱内存模型，允许对load-load、load-store、store-load、store-store四种组合进行重排79% similar

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