Cache consistency processing method, device and equipment and readable medium

A processing method and consistent technology, applied in the storage field, can solve problems such as performance degradation, and achieve the effect of improving efficiency and eliminating synchronous operations

Active Publication Date: 2020-11-24
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the data in the DMA and the data in the Cache need to be consistent. If the use of the Cache is abandoned, the performance will be reduced. Using the Cache must ensure the consistency of the data.

Method used

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  • Cache consistency processing method, device and equipment and readable medium
  • Cache consistency processing method, device and equipment and readable medium
  • Cache consistency processing method, device and equipment and readable medium

Examples

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0029] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0030] Based on the above purpose, the first aspect of the embodiments of the present invention proposes an embodiment of a method for processing cache consistency. figure 1 What is shown is a schematic diagram of an embodiment of the method for pro...

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PUM

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Abstract

The invention discloses a Cache consistency processing method, which comprises the following steps: receiving a read/write command, and judging whether the read/write command is hit in a Cache or not;if the read/write command is not hit in the Cache, calling out a replacement area in the Cache; judging whether the state of the replacement area is a modified state or not, and if the state of the replacement area is the modified state, writing the data of the replacement area into a main memory; writing the data corresponding to the read/write command in the main memory into the replacement area, and executing the read/write command in the replacement area. The invention further discloses a Cache consistency processing device, computer equipment and a readable storage medium. According to the invention, the consistency processing of the Cache and the memory data is carried out after the Cache data is called out of the Cache, so that the frequent synchronization operation is omitted, thedata processing speed is greatly improved, the data consistency is ensured, and the DMA transmission efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of the storage field, in particular to a Cache consistency processing method, device, equipment and readable medium. Background technique [0002] When a large amount of data is transmitted, due to the limitation of the transmission rate, the transmission often consumes a lot of time. Such a large amount of time consumption is difficult for users to accept for data disaster recovery. In the face of increasing data in the future, data transmission speed has become an urgent problem to be solved in storage research and development. [0003] At present, in order to better improve the transmission rate of storage products, developers start from multiple levels of hardware and software to improve the transmission speed of storage products. For example, use a more powerful CPU, a larger cache, and a faster SSD. At the software level, distributed technology and high-performance compression algorithms are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/0868G06F12/0871G06F13/28
CPCG06F12/0868G06F12/0871G06F13/28
Inventor 郭元新
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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