A computer system has an L1 cache, an L2 cache, and a main memory unit 10.4k view= connected as shown below. The block size in L1 cache is 4 words. The block size in L2 cache is 16 words. The memory access times are 2 nanoseconds, 20 nanoseconds and 200 nanoseconds for L1 cache, L2 cache and the main memory unit respectively. Data Data Bus Bus L1 L2 Main Cache Cache Memory 4 words 4 words When there is a miss in both L1 cache and L2 cache, first a block is transferred from main memory to L2 cache, and then a block is transferred from L2 cache to L1 cache. What is the total time taken for these transfers?

A computer system has an L1 cache, an L2 cache, and a main memory unit 10.4k view= connected as shown below. The block size in L1 cache is 4 words. The block size in L2 cache is 16 words. The memory access times are 2 nanoseconds, 20 nanoseconds and 200 nanoseconds for L1 cache, L2 cache and the main memory unit respectively. Data Data Bus Bus L1 L2 Main Cache Cache Memory 4 words 4 words When there is a miss in both L1 cache and L2 cache, first a block is transferred from main memory to L2 cache, and then a block is transferred from L2 cache to L1 cache. What is the total time taken for these transfers?

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Description: A computer system has an L1 cache, an L2 cache, and a main memory unit10.4k view=connected as shown below. The block size in L1 cache is 4 words. The blocksize in L2 cache is 16 words. The memory access times are 2 nanoseconds,20 nanoseconds and 200

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Question

A computer system has an L1 cache, an L2 cache, and a main memory unit
10.4k view=
connected as shown below. The block size in L1 cache is 4 words. The block
size in L2 cache is 16 words. The memory access times are 2 nanoseconds,
20 nanoseconds and 200 nanoseconds for L1 cache, L2 cache and the main memory
unit respectively.
Data
Data
Bus
Bus
L1
L2
Main
Cache
Cache
Memory
4 words
4 words
When there is a miss in both L1 cache and L2 cache, first a block is transferred from main
memory to L2 cache, and then a block is transferred from L2 cache to L1 cache. What is
the total time taken for these transfers?

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