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Data reading method, device and system

A data reading and data technology, which is applied in memory systems, electrical digital data processing, instruments, etc., can solve the problems of slow speed and low cache hit rate, and achieve the effect of improving read hit rate and reading efficiency

Inactive Publication Date: 2017-10-27
CHENGDU ZHIYUN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a data reading method, device and system to improve the current problem of low cache hit rate and slow speed when reading data

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  • Data reading method, device and system
  • Data reading method, device and system
  • Data reading method, device and system

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Embodiment Construction

[0044]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0045] Cloud storage is a new concept extended and de...

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Abstract

A data reading method, device, and system provided by the present invention relate to the field of data reading. The data reading system includes a data requesting end, a cache, and a storage node storing data. The data reading device is set at the The cache described above adopts the method of data pre-buffering to read data. Unlike the cache in the prior art, which starts to read data from the storage node after receiving the data read, the read request command sent by the data requester to the cache Contains the quantity information of the data that needs to be read and the address information of the data that needs to be read. After receiving the read request instruction, the cache starts to pre-read from the storage node, and the data requester can directly read from the cache The required data is read in this way, which improves the read hit rate and further improves the data reading efficiency.

Description

technical field [0001] The present invention relates to the field of data storage, in particular, to a data reading method, device and system. Background technique [0002] The current common data reading process is that the data requester sends a read data request, and the read data request will be received by the cache, and a response to the read data request will be returned. After receiving the response, the data requester sends a read request to the cache. Instructions for fetching data, if there is data to be read in the cache, the data requester reads directly from the cache, if not, reads from the hard disk. When the data to be read is large, the data requester will divide the data into multiple parts and read them in batches. After the first batch of data is read, the second batch of data will be read until the data is read. all data. With this data reading method, the cache hit rate is not high, and the entire read request transaction is a serial processing mecha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F12/0862
Inventor 黄睿
Owner CHENGDU ZHIYUN SCI & TECH
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