Shulou(Shulou.com)06/02 Report--

Editor to share with you what memory cache refers to. I hope you will get something after reading this article. Let's discuss it together.

Cache is a cache memory, which is located between the CPU and the main memory DRAM. It is small in scale, but high in speed, and is usually composed of SRAM. The writing operation of cache is complicated, such as direct writing, writeback and tagging.

Cache memory, a cache memory in a computer, is a small but high-speed memory located between the CPU and the main memory DRAM (Dynamic Random Access Memory). It is usually composed of SRAM (Static Random Access Memory static memory). It is a small but high-speed memory located between CPU and memory.

The speed of CPU is much higher than that of memory. When CPU directly accesses data from memory, it has to wait for a certain period of time, while Cache can save part of the data just used or recycled by CPU. If CPU needs to use this part of data again, it can be called directly from Cache, which avoids repeated access to data, reduces the waiting time of CPU, and improves the efficiency of the system. Cache is divided into L1Cache (first-level cache) and L2Cache (second-level cache). L1Cache is mainly integrated in CPU, while L2Cache is integrated on motherboard or CPU.

Write operation:

Because of the need to ensure that the data cached in Cache is consistent with the content in memory, the write operation of Cache is more complex, such as direct write method, write back method and marking method.

After reading this article, I believe you have a certain understanding of "what memory cache refers to". If you want to know more about it, you are welcome to follow the industry information channel. Thank you for reading!

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