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Data compression method and device

A data compression and compression algorithm technology, applied in the storage field, can solve the problems of low compression rate and poor compression performance, and achieve the effect of improving decompression performance

Active Publication Date: 2019-05-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In related technologies, a compression algorithm is used when storing data, and all data to be written is compressed using the same compression algorithm, which may result in poor compression performance or low compression rate

Method used

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Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0036] In order to facilitate the understanding of the embodiments of the present application, the system architecture involved in the embodiments of the present application and the concepts of terms involved are firstly introduced below.

[0037] The embodiments of the present application may be applicable to storage devices in the field of all-flash storage, and the storage devices may be servers, server clusters, storage arrays, etc., and may also be applicable to storage devices in the field of non-all-flash storage.

[0038] Compression ratio, the ratio of the size of the data after compression to the size of the data before compression.

[0039] The relationship between compression performance and compression ratio, such as...

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Abstract

The invention provides a data compression method and device, and relates to the technical field of storage. The method comprises the steps that after the storage device receives first data to be stored, whether the first data belong to hot writing data or not can be judged, and if the first data are not the hot writing data, the first data are compressed. By adopting the method, the compression performance can be improved.

Description

technical field [0001] The present application relates to the field of storage technology, in particular to a method and device for data compression. Background technique [0002] In the field of storage technology, in order to save storage space, the data will be compressed and stored. Currently, there are many general-purpose compression algorithms. Different compression algorithms have different compression ratios and compression performances. The worse the performance, the lower the compression ratio, the better the compression performance. [0003] In related technologies, a compression algorithm is used when storing data, and all data to be written is compressed using the same compression algorithm, which may result in poor compression performance or a low compression rate. Contents of the invention [0004] In order to solve problems in related technologies, the embodiments of the present application provide a method and device for data compression. Described tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M7/30
CPCH03M7/30H03M7/607H03M7/6094G06F3/0608G06F3/0659G06F3/0673H03M7/6064G06F2212/401
Inventor 牛进保全绍晖谈晓东
Owner HUAWEI TECH CO LTD
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