Question: Consider a memory hierarchy with a 3 level system cache and main memory. The cache levels L1, L2, L3 are arranged from the fastest

Consider a memory hierarchy with a 3 level system cache and main memory. The cache levels L1, L2, L3 are arranged from the fastest to the slowest memory, and main memory (RAM) is over 1 order of magnitude slower than the slowest L3 cache level. Memory and the cache levels have the following properties: L1 L2 L3 ERINE Main Memory (RAM) Access Time Hit Ratio T-1 micro s H = 0.93 T = 10 micro s H = 0.90 T3 = 50 micro s H3 = 0.95 Tm = 1000 micro s N/A Answer the following questions 1. What is the effective access time of the L3/Cache memory system? 2. Combine L2 with the effective access time to determine the effective access time of the L2/L3/Memory 3 level hierarchy. What is the effective access time for L2/L3/Memory? 3. Finally, what is the overall effective access time for this 4 level memory hierarchy?

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