Question

In designing a computer's cache system, the cache block (or cache line) size is an important parameter. Which one ot the following statements is correct in this context?

• A. A smaller block size implies a smaller cache tag and hence lower cache tag overhead
• B. A smaller block size implies better spatial locality
• C. A smaller block size implies a larger cache tag and hence lower cache hit time
• D. A smaller block size incurs a lower cache miss penalty

Answer 1

The correct option is D A smaller block size incurs a lower cache miss penalty

A smaller cache block implies a larger cache tag and hence higher cache hit time. So it incurs lower cache miss penalty.