Question

A cache hit ratio 0.95 64 bytes lines having cache hit latency

Answer 1

A cache has hit ration 0.95, 64 byte lines , having cache hit latency of 5ns. The main memory takes 90ns to return the first word(16 bits) of a line and 10ns to return each subsequent word . The time needed when cache miss happens is _____(nsec) (Assume cache wait until the line has been fetched into cache and then re-execute the main memory operation , results cache hit . Ignore time to write line into cache once it has been fetched from main memory and to detect cache miss time needed same as cache hit time)