Systems, methods and computer program products for reducing hash table working-set size for improved latency and scalability in a processing system
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United States of America Patent
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Jun 30, 2015
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N/A
app pub date -
Jul 25, 2012
filing date -
Jul 25, 2012
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Abstract
System, method and computer program products for storing data by computing a plurality of hash functions of data values in a data item, and determining a corresponding memory location for one of the plurality of hash functions of data values in the data item. Each memory location is of a cacheline size wherein a data item is stored in a memory location. Each memory location can store a plurality of data items. A key portion of all data items is contiguously stored within the memory location, and a payload portion is contiguously stored within the memory location. Payload portions are packed as bit-aligned in a fixed-sized memory location, comprising a bucket in a bucketized hash table, each bucket sized to store multiple key portions and payload portions that are packed as bit-aligned in a fixed-sized bucket. Corresponding key portions are stored as compressed keys in said fixed-sized bucket.
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