Computer Science · Computer Organization and Architecture
If the cache hit ratio is 0.9, cache access time is 10 ns, and main memory access time is 100 ns, what is the effective memory access time (EAT) assuming that main memory access is initiated only after a cache miss (ignoring cache lookup overhead on a miss)?
- 120 ns
- 229 ns
- 328 ns
- 419 ns✓
Correct answer
19 ns
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