Quiz:

Q1: Why the formula t_eff = t_cache + ( 1 – h ) t_main is only an approximation to the true performance?

Q2: What is associative memory? Why does associative memory have a longer cycle than a random-access memory built from identical technology?

Q3: What are the advantages and disadvantages of direct mapped cache?

Q4: What are the advantages of separate the cache in to data cache and code cache?

Q5: Suppose t_cache = 25ns, t_main = 200ns, h = 99%, w = 20%, and the memory data path fully matches the cache block size. What is the average access time?

 Q6: How to extend the average access time formula to cover a second-level cache?

     Q7: What is the special purpose for vector processor?

     Q8: What is the two problems in vector processor?

      Q9: How to handle vector length problem in vector processor?

( Quiz Solution )

Presented by: Hongqing Liu, Stacy Weng, and Wei Sun