Title
Cache-Aware Lock-Free Concurrent Hash Tries
Abstract
This report describes an implementation of a non-blocking concurrent shared-memory hash trie based on single-word compare-and-swap instructions. Insert, lookup and remove operations modifying different parts of the hash trie can be run independent of each other and do not contend. Remove operations ensure that the unneeded memory is freed and that the trie is kept compact. A pseudocode for these operations is presented and a proof of correctness is given -- we show that the implementation is linearizable and lock-free. Finally, benchmarks are presented which compare concurrent hash trie operations against the corresponding operations on other concurrent data structures, showing their performance and scalability.
Year
Venue
Keywords
2017
arXiv: Data Structures and Algorithms
lock free data structures
Field
DocType
Volume
SHA-2,Hash array mapped trie,Hash tree,Extendible hashing,Computer science,Parallel computing,HAT-trie,Hash function,Hash chain,Hash trie
Journal
abs/1709.06056
Citations 
PageRank 
References 
5
0.55
7
Authors
3
Name
Order
Citations
PageRank
Aleksandar Prokopec116313.56
Phil Bagwell2814.64
Martin Odersky32261170.39