Opt Tree: Write Optimized Tree Using Optane DCPM Internal Buffer 


Vol. 48,  No. 7, pp. 742-747, Jul.  2021
10.5626/JOK.2021.48.7.742


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  Abstract

Intel’s Optane DC Persistent Memory, a recently commercialized non-volatile byte-addressable memory, has an internal buffer of 256 bytes called XPLine, which processes memory access commands in units of cache lines or words. In this paper, we propose Opt Tree, a novel byte-addressable persistent index that utilizes the internal buffer of the Optane DCPM. Opt Tree divides the tree node into several small blocks of 256 bytes. For insertions and searches, Opt Tree accesses only two blocks. In our performance study, Opt Tree shows better insertion performance than the existing persistent indexes through its internal buffer-friendly design.


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  Cite this article

[IEEE Style]

J. Yoo and B. Nam, "Opt Tree: Write Optimized Tree Using Optane DCPM Internal Buffer," Journal of KIISE, JOK, vol. 48, no. 7, pp. 742-747, 2021. DOI: 10.5626/JOK.2021.48.7.742.


[ACM Style]

Jonghyeon Yoo and Beomseok Nam. 2021. Opt Tree: Write Optimized Tree Using Optane DCPM Internal Buffer. Journal of KIISE, JOK, 48, 7, (2021), 742-747. DOI: 10.5626/JOK.2021.48.7.742.


[KCI Style]

유종현, 남범석, "Opt Tree: Optane DCPM 내부 버퍼를 활용한 쓰기 최적화 트리," 한국정보과학회 논문지, 제48권, 제7호, 742~747쪽, 2021. DOI: 10.5626/JOK.2021.48.7.742.


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