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Data caching system and method

A data cache and storage system technology, applied in memory systems, electrical digital data processing, memory architecture access/allocation, etc., can solve problems such as difficult data address prediction, data cache missing processor performance, etc.

Active Publication Date: 2014-09-17
SHANGHAI XINHAO MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for data cache, due to the uncertainty of the data address, it is difficult to predict the data address effectively
Therefore, with the widening processor / memory speed gap, data cache miss remains the most serious bottleneck restricting the performance improvement of modern processors

Method used

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Embodiment Construction

[0061] The data caching system and method proposed by the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0062] For ease of description, in this specification, the technical solution of the present invention is described by taking a data reading instruction as an example. For data storage instructions, it can also be implemented in a similar manner.

[0063] Please refer to figure 1 , which is a block diagram of a data cache system according to an embodiment of the present invention. Such as figure 1 As shown, the data cache system includes a processor 101, an active...

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Abstract

The invention provides a data caching system and a data caching method. In the data caching system and the data caching method which are provided by the invention, data caches are filled in advance by storing related information in command caches or a data track table and the data caches are controlled to output data possibly accessed to a processor in advance, so that waiting time caused by missing of the data caches and / or access time delay for the data caches is partially or totally covered.

Description

technical field [0001] The invention relates to the technical field of computer architecture, in particular to a data caching system and method. Background technique [0002] Generally speaking, the function of the cache is to copy a part of the content in the memory, so that the content can be quickly accessed by the processor core in a short time, so as to ensure the continuous operation of the pipeline. [0003] The addressing of the current cache is based on the following method. Firstly, the index segment in the address is used to address and read out the tags in the tag memory. At the same time, the index segment in the address and the displacement segment in the block are jointly addressed to read out the content in the cache. In addition, the tag read from the tag memory is matched with the tag field in the address. If the tag read from the tag memory is the same as the tag segment in the address, then the content read from the cache is valid, which is called a cac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/08G06F12/0862G06F12/0875
CPCG06F12/0862G06F9/38G06F9/323G06F9/30058G06F9/3804G06F12/0875G06F2212/452G06F2212/6022
Inventor 林正浩
Owner SHANGHAI XINHAO MICROELECTRONICS
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