Discuss how a cache hierarchy and cache size can be useful in improving system performance. You can use the diagram below as reference point to discuss this issue. Conduct online search for additional information. You may start by comparing the performance of a system with NO cache, then a system with a single cache, and a multi-level cache system.

Block Transfer Word Transfer CPU Cache Main Memory Fast Slow (a) Singlecache E CPU Level 1 A (L1) cachek Level 2 (L2) cache Leve 3 (L3) cache Main Memory Fastest Fast te Slow (b) Three level cacheorganization