For a data cache with a 92% hit rate and a 2-cycle hit latency, calculate the average

Using the Average Memory Access Latency relation, the AMAT value in the scenario described would be 11.92 ns

Given the Parameters :

The Average - Memory Access Time can be calculated using the relation :

The AMAT = 2 + [(1 - 0.92) × 124]

AMAT = 2 + (0.08 × 124)

AMAT = 2 + 9.92 = 11.92 ns

Therefore, the average memory access latency is 11.92ns.

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AMAT is 11.92ns.

Explanation:

Given,

Hit rate = 92%

Hit latency = 2 cycle

Latency to memory + miss penalty = 124 cycles

Average Memory Access Latency = ?

We know,

Average memory-access time (AMAT)  = Hit time + Miss rate x Miss penalty

So,

If hit rate is 92% then the miss rate would be 8%

Thus,

AMAT = 2 + 0.08 X 124

AMAT = 11.92ns

Therefore, AMAT is 11.92ns.

Explanation:

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