We will explore the impact of cache capacity on performance, focusing exclusively on the data cache and excluding instruction storage in the caches. Cache access time is directly linked to its capacity. For the sake of simplicity, let's assume that accessing the main memory takes 100ns, and in a specific program, 50% of instructions involve data access. Two distinct processors, denoted as P1 and P2, are engaged in executing this program. Each processor is equipped with its own L1 cache. L1 size L1 Miss Rate L1 Hit Time P1 64 KB 3.6% 1.26 ns P2 128 KB 3.1% 2.17ns (a) What is the AMAT for P1 and P2 assuming no other levels of cache?

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A:

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Fundamentals of memory

A collection of connected storage devices form the memory unit. It is a space to store data and instructions required for processing. Information is stored in a memory unit in the form of bits. There are two types of memory namely: