| 摘要 |
An atomic transaction includes one or more memory access operations that are completed atomically. A Best-Effort Transaction (BET) system makes its best effort to complete each atomic transaction without guaranteeing completion of all atomic transactions. When an atomic transaction is aborted, BET may provide software with appropriate runtime information such as cause of the abortion. With proper coherence layer enhancements, BET can be implemented efficiently for multiprocessor systems, using caches as buffers for data accessed by atomic transactions. Furthermore, with appropriate fairness support, forward progress can be guaranteed for atomic transactions that incur no buffer overflow.
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