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Multi-copy atomicity
之前关于硬件 Fences的文章中简单提及了丢失 Multi-copy atomicity 之后可能带来的麻烦,本文具体讨论一下 Multi-copy atomicity,其硬件实现及后果。
定义
MCA 这个概念本身一开始其实大家不怎么集中讨论,直到 ARMv8 made it popular[1]。According to [1][2], Multi-copy atomicity (MCA) 的定义其实不是很统一,本文遵从 [2] 中的非正式定义,因为这是现在 ARMv8, RISC-V 和 x86 及 TL, CHI 和 ACE 都遵从的定义,即 Multi-copy atomicit...
https://layered.meow.plus/post/mca
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