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This article will explain in detail what the role of cache memory is, and the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have some understanding of the relevant knowledge after reading this article.

The function of cache memory is: after adding cache memory between CPU and memory, CPU can access data directly to memory, thus reducing the time and improving the running speed of the system. The cache memory is composed of a Cache memory bank, an address translation unit and a replacement unit.

Function:

When CPU in a higher-grade computer accesses data to memory, it waits because the speed of memory can not keep up with the speed of CPU, thus wasting the precious time of CPU. After adding cache memory between CPU and memory, CPU can access data directly, which reduces the time and improves the running speed of the system.

Related introduction:

Cache memory is a primary memory between main memory and CPU, which is composed of static memory chip (SRAM). Its capacity is relatively small but its speed is much higher than that of main memory, which is close to the speed of CPU.

In the hierarchical structure of computer storage system, it is a high-speed and small-capacity memory between the central processing unit and the main memory. It forms a first-level memory together with the main memory. The scheduling and transmission of information between cache memory and main memory is carried out automatically by hardware.

It is mainly composed of three parts:

Cache bank: stores instructions and data blocks transferred from main memory.

Address translation unit: a directory table is established to realize the conversion from the main memory address to the cache address.

Replacement part: when the cache is full, the data block is replaced according to a certain strategy, and the address translation part is modified.

About the role of cache memory to share here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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