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Find the AMAT for a processor with a 1 ns clock cycle time, a miss penalty of 20 clock cycles, a miss rate of 0.05 misses per instruction, and a cache access time (including hit detection) of 1 clock cycle. Assume that the read and write miss penalties are the same and ignore other write stalls.

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temmydbrain

Answer:

Check the explanation

Explanation:

To answer the question above, we will need to first:

Hittime                      = 2 ns clock

Misspenalty                =20 clock cycles x 2ns

Missrate                     =0.05 misses per instruction

cache access time       = 1 clockcycle.

AMAT for a processor = ?

AMAT= Hit time + (Miss rate × Misspenalty)AMAT = 2 ns + (0.05 . (20 × 2ns)) = 4ns

Lanuel

The average memory access time (AMAT) for this processor is equal to 2.05 ns.

Given the following data:

  • Clock cycle time = 1 ns.
  • Miss penalty = 20 clock cycle.
  • Miss rate = 0.05.
  • Hit time = 1 clock cycle.

What is a CPU?

A central processing unit (CPU) can be defined as the main component of a computer which act as its brain and does all the processing and logical control.

What is cache?

Cache refers to a random access memory (RAM) that is used by the central processing unit (CPU) to minimize (reduce) the average time taken to access memory (AMAT).

What is miss penalty?

Miss penalty can be defined as the extra amount of time that is required to bring data from the main memory into cache, whenever there is a "miss" in cache.

In Computer technology, the average memory access time (AMAT) is calculated by using this formula:

[tex]AMAT =(Hit \;time )+ Miss \;rate \times Miss \;penalty\\\\AMAT =(1)+0.05 \times 20\\\\AMAT =1.05 + 1[/tex]

AMAT = 2.05 ns.

Read more on CPU here: https://brainly.com/question/5430107

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