Calculate the mean access time to four decimal digits

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Reference no: EM132075904

You need help with the followin questions

1. You have a 1-level cache of size 1MB. Cache hits require an access time of 20 nsec. Cache misses require an access time of 10 µsec. For a giving algorithm, there are 10,000 cache hits and 100 cache misses.

a) Calculate the hit-ratio to 4 significant digits

b) Calculate the mean access time to 4 significant digits. Assume pipelining. i.e., we begin memory accesses while initiating cache accesses

c) If we double the cache size, what affect would it have on (a) and (b)? How might this make the access time slower?

2. You have a 2-level cache. Level 1 cache is 1MB and level 2 cache is 2MB. Level 1 cache has a mean access time of 20 nsec, level 2 200 nsec, and cache misses 10 µsec.

a) Calculate the hit-ratio for level-1 cache to 4 significant digits

b) Calculate the hit-ratio for level-2 cache to 4 significant digits

c) Calculate the mean access time to 4 decimal digits. Assume pipelining. i.e., we begin memory accesses while initiating cache accesses

Reference no: EM132075904

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