My question is how to decide whether to do simultaneous or hierarchical read,when I am doing hierarchical read then answer is given in simultaneous and vice versa!!! How to guess I am big confused if comes for numerical type then definitely I will do blunder pls help!!!
Consider a system with the main memory access time as 200 ns and cache access time as 10 ns. Hit ratio for read request is 0.8 and 80% of the memory requests are for read. If write through policy is used, then the average time considering both read and write requests is __________.
