consider a memory system with a memory access time of 150 ns and a cache access time of 20ns. If the effective access time is 20% greater than the cache access time, what is the hit ratio H g

H = 0.7333333

Explanation:

Given that:

The memory access time () = 150 ns

The cache access time = 20 ns

Effective access time  = 20% >

Then, it implies that:

= + 20% of

=(1+20%)

=(1+ 0.2)

= 20ns × 1.2

= 24ns

To determine the hit ratio H;

Using the formula:

Replacing the values; we have:

From (1)

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