Chimp: Efficient Lossless Floating Point Compression for Time Series Databases

1 ABSTRACT 2 INTRODUCTION 3 PRELIMINARIES 3.1 Floating Point Time Series 3.2 IEEE 754 Double Precision Floating Point Format 3.3 Gorilla Compression 4 PROPERTIES OF REAL-WORLD TIME SERIES 4.1 Trailing Zeros 4.2 Leading Zeros 4.3 Revisiting Gorilla Compression 5 OVERVIEW 5.1 Our Chimp Algorithm 6 效果对比 6.1 Compression size result 6.2 Compression and decompression time 本文为摘录,原文为: attachments/pdf/1/p3058-liakos.pdf 1...

Towards a New File Format for Big Data - SIMD-Friendly Composable Compression

1 Introduction 2 Related Work 2.1 Storage Layouts 2.2 Bit-(Un)Packing 3 SIMD-Friendly Bit-(Un)Packing 4 Composable Functions 5 Composable Compression Schemes 本文为摘录,原文为: attachments/pdf/a/Towards a New File Format for Big Data - SIMD-Friendly Composable Compression (2020-AzimAfroozeh).pdf 1 Introduction 2 Related Work 2.1 Storage Layouts 2.1.1 NSM 传统上,在数据库系统中,表格数据通...