memory management - Information on N-way set associative Cache stides -


Depends on many resource resources going on the Internet. For example, hardware secrets believe that it works like this:

Then the main RAM memory has been divided into the same number of blocks available in the memory cache. Keeping a 512 KB 4-way set associate example, the main RAM will be divided into 2,048 blocks, the same number of blocks available within the memory cache. Each memory block is connected to a set of lines inside the cache, such as directly in the map cache.

It seems that each cache block (4 cache lines) magps near a special black block. They say that the non-narrow block of system memory (RAM) can not map the cache block like black.

It disagrees with the secrets of the hardware

Brown is uncomfortable with the hardware secrets

How it works, it understands how it works. P>

On the contrary.

If there are two set fields for each cache line, then what might be: two sets of valid bits, two dirty bits, two tag fields, and one field of two data fields fields, one area of ​​the main memory Can cache the data, and the other for an area that mapped to the same cache line.

This can map non-narrow block of system memory to in the same cache block.

Non-made on system memory and cash blocks I have read somewhere that these relationships are based on cash progress but I am not getting any information about the progress of the cash which they are present.

Who's right? If really used in confusion, then how difficult it is to work and I have the right technical name? How can I make progress for a specific system? Is it based on paging system? Can anyone tell me in the URL, which tells the N-SE set Associated Cash in very detail?

See also:

When I teach my students cash memory architecture , Then I start with a straight-mapped cache. Once understood, you can think of the N-Way Set Associative Cash as a parallel block of straight-map cache. To understand that both figures can be correct, you must first understand the purpose of the set-ashock cash.

They are designed to work around the problem of 'aliasing' in a straight-mapped cache, where multiple memory locations can map to a specific cache entry. It is shown in Wikipedia shape. Therefore, instead of excluding the cache entry, we can use an N-way cache to store other 'aliased' memory locations.

In fact, the hardware secret diagram will be correct because the replacement is such that the first part of the main memory is mapped to route -1 and then the second -2 path, and so on. However, being the first part of the main storage spread in many ways is equally possible.

Hope this explanation helps!

PS: Infected memory space is only required for one cache Line, exploitation of spatial area For the last part of your question, I believe that you can confuse many different concepts Are there.


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