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Anonymous users2024-02-06cache".
Cache (or cache memory) is the word we hear most often. In the eyes of the old birds, there may be no need to talk about this word anymore, because they already know the necessity of the cache from the design to the working principle, the working process, and so on; For rookie friends, these may not be very clear. So, what exactly do they mean?
Don't worry, let's follow the author to fully understand cache.
Why you should design a cache
We know that the memory of the computer works at the clock frequency of the system bus, which is usually the external frequency of the CPU (for the processors of the Thunderbird and Poison Dragon series, due to the use of DDR technology in the design, the external frequency of the CPU is twice the frequency of the system bus). However, the operating frequency (main frequency) of the CPU is the product of the external frequency and the frequency doubling factor. In this way, the memory works much less frequently than the CPU.
As a direct result of this, the CPU often needs to "wait" for some time to access the memory again after executing an instruction, which greatly reduces the CPU work efficiency. In this case, the cache came into being!
cache".
Cache is a special type of storage that consists of a cache storage widget and a cache control widget. Cache storage components generally use semiconductor storage devices of the same type as CPUs, and the access speed is several times or even more than ten times faster than memory. The cache controller components include the main memory address register, the cache address register, the main memory-cache address conversion component and the replacement control component.
As for how they work, what they do, etc., I don't think we need to do further research, just know that the general cache is divided into L1 cache (which is divided into data cache, **cache), and L2 cache.
It's normal not to worry.
Domites**.
But be careful. Some viruses will change the suffix. dat, so that the icon is displayed as a box with no content.
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Anonymous users2024-02-05Buffer files, which can be deleted.
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Anonymous users2024-02-04Domites**.
But be careful. Some viruses will change the suffix. dat, so that the icon is displayed as a box with no content.
Happy operation.
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