close to that of the highest (and fastest) level and a size equal to that of the

Question

close to that of the highest (and fastest) level and a size equal to that of the lowest (and largest) level. In most systems, the memory is a true hierarchy, meaning that data cannot be present in level i unless it is also present in level i +1. Which of the following statements are generally true? 1. Memory hierarchies take advantage of temporal locality 2. On a read, the value returned depends on which blocks are in the cache. 3. Most of the cost of the memory hierarchy is at the highest level. 4. Most of the capacity of the memory hierarchy is at the lowest level. 378 Chapter 5 Large and Fast: Exploiting Memory Hierarchy

Explanation / Answer

Below are True: ----------------- Memory hierarchies take advantage of temporal locality Most of the capacity of the memory hierarchy is at the lowest level Below are False: ------------------ On a read, the value returned depends on which blocks are in the cache Most of the cost of the memory hierarchy is at the highest level

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