A cache memory needs an access time of 30 ns and main memory 150 ns, what is the average access time of CPU (assume hit ratio = 80%)?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter11: Operating Systems
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A cache memory needs an access time of 30 ns and main memory 150 ns, what is the average
access time of CPU (assume hit ratio= = 80%)?
Transcribed Image Text:A cache memory needs an access time of 30 ns and main memory 150 ns, what is the average access time of CPU (assume hit ratio= = 80%)?
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