Question

A program while executing refers the memory 500- times. The memory is 3-level memory with 2-level caching and a main memory. there are 50 misses in cache level- 1 and 30 misses in cache level- 2. Assume that miss penalty for level-2 cache is 100 cycles. The hit time of level -2 cache is 20 cycles. The hit time of the level-1 cache is 10 cycles. If there are 2.5 memory references per instruction. The average memory access time in number of cycles is _______ .

• A. 34.75
• B. 24.36
• C. 44.25
• D. 14.25

Answer 1

The correct option is D 14.25

option (b)

14.25