Reconciling Selective Logging and Hardware Persistent Memory Transaction
Reconciling Selective Logging and Hardware Persistent Memory Transaction
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DOI：
10.1109/hpca56546.2023.10071088
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发表时间：
2023-02
期刊：
影响因子：
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通讯作者：
Chencheng Ye;Yuanchao Xu;Xipeng Shen;Yan Sha;Xiaofei Liao;Hai Jin;Yan Solihin
中科院分区：
文献类型：
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作者：
Chencheng Ye;Yuanchao Xu;Xipeng Shen;Yan Sha;Xiaofei Liao;Hai Jin;Yan Solihin
已知日志创建，维护及其持久订购是持久记忆的持久交易的性能瓶颈，持续的硬件记忆交易忽略了一个重要的机会来改善性能：某些持久性数据是算法的，从而可以从其他数据中恢复过来，以便将其重新设置为pogugn the the the the the the the the the the the the the the the the the the the Isa。 ISA扩展是两个新颖的组件：细粒度的持久性。
Log creation, maintenance, and its persist ordering are known to be performance bottlenecks for durable transactions on persistent memory. Existing hardware persistent memory transactions overlook an important opportunity for improving performance: some persistent data is algorithmically redundant such that it can be recovered from other data, removing the need for logging such data. The paper presents an ISA extension that enables selective logging for hardware persistent memory transactions for the first time. The ISA extension features two novel components: fine-grain logging and lazy persistency. Fine-grain logging allows hardware to log updates on data in the granularity of words without lengthening the critical path of data accesses. Lazy persistency allows updated data to remain in the cache after the transaction commits. Together, the new hardware persistent memory transaction outperforms the state-of-the-art hardware counterpart by 1.8× on average.