作者: David Weaver , Shasank Chavan , Albert Danysh , Andrew Ewoldt , Prateek Agrawal
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摘要: Approaches are described to improve database performance by implementing a RLE decompression function at low level within general-purpose processor or an external block. Specifically, embodiments of hardware implementation instruction for disclosed. The approaches supporting the and/or is disclosed that produces 64-bit result, with example embodiment performing task in two pipelined execution stages throughput one per cycle. According embodiments, organization narrow-width shifters operating parallel, controlled computed shift counts, used perform decompression. Because decreased time required according tasks use herein run-length encoded data made more efficient.