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Assume that main memory access takes 70 ns and L1 caches are attached to each of two processors, P1 and P2.

a) For the processor P1, the L1 miss rate is 11.4% and the L1 hit time is 0.62 ns. Compute its AMAT (average memory access time).

Answer :

Final answer:

The average memory access time for processor P1 is 8.60 ns.

Explanation:

The Average Memory Access Time (AMAT) can be calculated using the formula: AMAT = (Hit Time) + (Miss Rate * Miss Penalty). Given that the L1 miss rate for processor P1 is 11.4% and the L1 hit time is 0.62 ns, we can calculate the average memory access time for P1:

AMAT = 0.62 ns + (11.4% * 70 ns) = 0.62 ns + 7.98 ns = 8.60 ns.

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