Chapter 9 - Question #4 of 7

How does locality of reference and program behavior support cache use? Are there any disadvantages/issues with cache use? Explain.

Locality of reference supports the fact that most programs are loaded into memory using successive memory locations. Since programs usually run successive lines of code it supports the use of retrieving blocks of data from associative cache.  Advantages of this type of cache use are that lines of code will run faster since the instructions are in successive memory locations.  A disadvantage is that if the data is not sequentially stored in the associative cache memory accessed must interrupt data handling.  This slows down data processing.

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