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CLC number: TP333
On-line Access: 2023-05-31
Received: 2022-10-14
Revision Accepted: 2023-05-31
Crosschecked: 2023-01-04
Cited: 0
Clicked: 975
Citations: Bibtex RefMan EndNote GB/T7714
NEHASH: high-concurrency extendible hashing for non-volatile memory
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Tao CAI, Pengfei GAO, Dejiao NIU, Yueming MA, Tianle LEI, Jianfei DAI. NEHASH: high-concurrency extendible hashing for non-volatile memory[J]. Frontiers of Information Technology & Electronic Engineering, 2023, 24(5): 703-715.
@article{title="NEHASH: high-concurrency extendible hashing for non-volatile memory",
author="Tao CAI, Pengfei GAO, Dejiao NIU, Yueming MA, Tianle LEI, Jianfei DAI",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="24",
number="5",
pages="703-715",
year="2023",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.2200462"
}
%0 Journal Article
%T NEHASH: high-concurrency extendible hashing for non-volatile memory
%A Tao CAI
%A Pengfei GAO
%A Dejiao NIU
%A Yueming MA
%A Tianle LEI
%A Jianfei DAI
%J Frontiers of Information Technology & Electronic Engineering
%V 24
%N 5
%P 703-715
%@ 2095-9184
%D 2023
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.2200462
TY - JOUR
T1 - NEHASH: high-concurrency extendible hashing for non-volatile memory
A1 - Tao CAI
A1 - Pengfei GAO
A1 - Dejiao NIU
A1 - Yueming MA
A1 - Tianle LEI
A1 - Jianfei DAI
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 24
IS - 5
SP - 703
EP - 715
%@ 2095-9184
Y1 - 2023
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.2200462
Abstract: extendible hashing is an effective way to manage increasingly large file system metadata, but it suffers from low concurrency and lack of optimization for non-volatile memory (NVM). In this paper, a multilevel hash directory based on lazy expansion is designed to improve the concurrency and efficiency of extendible hashing, and a hash bucket management algorithm based on groups is presented to improve the efficiency of hash key management by reducing the size of the hash bucket, thereby improving the performance of extendible hashing. Meanwhile, a hierarchical storage strategy of extendible hashing for NVM is given to take advantage of dynamic random access memory (DRAM) and NVM. Furthermore, on the basis of the device driver for Intel Optane DC Persistent Memory, the prototype of high-concurrency extendible hashing named NEHASH is implemented. Yahoo cloud serving benchmark (YCSB) is used to test and compare with CCEH, level hashing, and cuckoo hashing. The results show that NEHASH can improve read throughput by up to 16.5% and write throughput by 19.3%.
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