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arXiv:1904.01614cs.DB

Persistent Memory I/O Primitives

Alexander van Renen, Lukas Vogel, Viktor Leis, Thomas Neumann, Alfons Kemper

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Abstract

I/O latency and throughput is one of the major performance bottlenecks for disk-based database systems. Upcoming persistent memory (PMem) technologies, like Intel's Optane DC Persistent Memory Modules, promise to bridge the gap between NAND-based flash (SSD) and DRAM, and thus eliminate the I/O bottleneck. In this paper, we provide one of the first performance evaluations of PMem in terms of bandwidth and latency. Based on the results, we develop guidelines for efficient PMem usage and two essential I/O primitives tuned for PMem: log writing and block flushing.

arXiv comments
7 pages, 6 figures, DaMoN 2019
Journal reference
DOI
Subjects
cs.DBDatabases

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