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Monday, July 8 • 10:00am - 10:30am
Towards an Unwritten Contract of Intel Optane SSD

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New non-volatile memory technologies offer unprecedented performance levels for persistent storage. However, to exploit their full potential, a deeper performance characterization of such devices is required. In this paper, we analyze a NVM-based block device -- the Intel Optane SSD -- and formalize an "unwritten contract'' of the Optane SSD. We show that violating this contract can result in 11x worse read latency and limited throughput (only 20% of peak bandwidth) regardless of parallelism. We present that this contract is relevant to features of 3D XPoint memory and Intel Optane SSD's controller/interconnect design. Finally, we discuss the implications of the contract.


Kan Wu

University of Wisconsin-Madison

Andrea Arpaci-Dusseau

University of Wisconsin-Madison

Remzi Arpaci-Dusseau

University of Wisconsin-Madison
Remzi Arpaci-Dusseau is the Grace Wahba professor of Computer Sciences at UW-Madison. He co-leads a research group with Professor Andrea Arpaci-Dusseau. Together, they have graduated 24 Ph.D. students and won numerous best-paper awards; many of their innovations are used by commercial... Read More →

Monday July 8, 2019 10:00am - 10:30am PDT
HotStorage: Grand Ballroom I–III