Abstract:A quotient filter is a cache efficient Approximate Membership Query (AMQ) data structure. Depending on the fill degree of the filter most insertions and queries only need to access one or two consecutive cache lines. This makes quotient filters very fast compared to the more commonly used Bloom filters that incur multiple cache misses depending on the false positive rate. However, concurrent Bloom filters are easy to implement and can be implemented lock-free while concurrent quotient filters are not as simple… Show more
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