Essentials of Computer Architecture, Second Edition by Comer Douglas

Author:Comer, Douglas [Comer, Douglas]
Language: eng
Format: azw3
Publisher: CRC Press
Published: 2017-01-05T16:00:00+00:00

Conceptually, each entry in a memory cache contains two values: a memory address and the value of the byte found at that address. In practice, storing a complete address with each entry is inefficient. Therefore, memory caches use clever techniques to reduce the amount of space needed. The two most important cache optimization techniques are known as:

Direct mapped memory cache

Set associative memory cache

We will see that, like virtual memory schemes, both cache implementations use powers of two to avoid arithmetic computation.

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