DRPTM: A Decoupled Read-efficient High-scalable Persistent Transactional Memory

Persistent transactional memory (PTM) exploits transactions to provide an easy crash-consistent interface for persistent memory (PM). However, because of the substantial reader-side overhead brought on by the low bandwidth and long persistence latency of PM, present PTM research cannot scale effecti...

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Bibliographic Details
Published in2023 60th ACM/IEEE Design Automation Conference (DAC) pp. 1 - 6
Main Authors Liang, Wenkai, Hu, Hao, Zou, Xiangyu, Xia, Wen, Pan, Yanqi
Format Conference Proceeding
LanguageEnglish
Published IEEE 09.07.2023
Subjects
Bandwidth
Computer crashes
Concurrency control
Design automation
Hardware
Scalability
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Summary:Persistent transactional memory (PTM) exploits transactions to provide an easy crash-consistent interface for persistent memory (PM). However, because of the substantial reader-side overhead brought on by the low bandwidth and long persistence latency of PM, present PTM research cannot scale effectively. This paper proposes a highly scalable PTM system, DRPTM, which allows nearly non-overhead reads without lowering the isolation level. DRPTM decouples persistence latency from concurrency control and traces the read-only copy maintained in logs as a lightweight read set. The evaluation shows that DRPTM significantly outperforms the state-of-the-art PTM systems for various workloads and achieves near-linear scalability.
DOI:10.1109/DAC56929.2023.10247971