The performance of cache memory is frequently measured in terms of a quantity called ______.

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RRB JE ME CBT 2 Previous Paper 2: Held on 31 Aug 2019
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  2. Associative Mapping
  3. Hit ratio 
  4. Set-associative Mapping

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Option 3 : Hit ratio 
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1) The performance of cache memory is frequently measured in terms of a quantity called the Hit ratio.

\(Hit~ratio=\frac{hit}{hit~+~miss}\)

2) If the processor finds that the memory location is in the cache, a cache hit has occurred and data is read from the cache.

3) If the processor does not find the memory location in the cache, a cache miss has occurred.

4) Miss ratio = 1 - Hit ratio

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