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ACSC
2009
IEEE

Fast and Compact Hash Tables for Integer Keys

9 years 6 months ago
Fast and Compact Hash Tables for Integer Keys
A hash table is a fundamental data structure in computer science that can offer rapid storage and retrieval of data. A leading implementation for string keys is the cacheconscious array hash table. Although fast with strings, there is currently no information in the research literature on its performance with integer keys. More importantly, we do not know how efficient an integer-based array hash table is compared to other hash tables that are designed for integers, such as bucketized cuckoo hashing. In this paper, we explain how to efficiently implement an array hash table for integers. We then demonstrate, through careful experimental evaluations, which hash table, whether it be a bucketized cuckoo hash table, an array hash table, or alternative hash table schemes such as linear probing, offers the best performance—with respect to time and space— for maintaining a large dictionary of integers in-memory, on a current cache-oriented processor.
Nikolas Askitis
Added 18 May 2010
Updated 18 May 2010
Type Conference
Year 2009
Where ACSC
Authors Nikolas Askitis
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