Vertical Bit-Packing: Optimizing Operations on Bit-Packed Vectors Leveraging SIMD Instructions

Martin Faust,Martin Grund,Tim Berning,David Schwalb,Hasso Plattner

DATABASE SYSTEMS FOR ADVANCED APPLICATIONS, DASFAA 2014（2014）

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摘要

Today’s in-memory column stores make heavy use of bit-packed data structures in order to reduce the required amount of main-memory and to improve the performance of memory-bound algorithms by trading more CPU cycles for less data that needs to be transferred over the memory-bus.

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关键词

Predicate Evaluation,Result Vector,SIMD Instruction,Decompression Process,Storage Layout

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