2 votes 2 votes https://gateoverflow.in/10668/64-word-cache-and-main-memory-is-divided-into-16-words-block https://gateoverflow.in/21189/gate-q-43_44?show=21189#q21189 In this two questions, I am not getting how to find TavgW . In the first link they are calculating it with the given hit ratios but in 2nd link @Arjun sir is saying that, Write through always goes to memory, so hit rate does not matter for time. But in both question it is given that, If there is a miss then block is to be brought from main memory to cache. Which means hierarchical access. Plz tell me what's the difference between those question and how to solve them. CO and Architecture write-through cache-memory + – Digvijaysingh Gautam asked Oct 15, 2016 • retagged Jul 9, 2017 by Arjun Digvijaysingh Gautam 488 views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply Arjun commented Oct 15, 2016 reply Follow Share This is due to Whenever there is a miss in cache, associated block must be brought from main memory to cache for read and write operation. in first question. Any statement can be given like this in question and we have to solve accordingly. That is why I always say those who learns formula are simply wasting time. 2 votes 2 votes Digvijaysingh Gautam commented Oct 15, 2016 reply Follow Share But @Arjun sir in second question there is written as If there is a miss then 2 word block is to be through from main memory to cache. which also means the same. That's what confusing me. 0 votes 0 votes Arjun commented Oct 15, 2016 reply Follow Share yes, but for Read or for Write? That question is full of missing points anyway. 1 votes 1 votes Digvijaysingh Gautam commented Oct 15, 2016 reply Follow Share Ok. Thank you, Sir. I thought it was for both Read and Write. From next time, I will be careful. 1 votes 1 votes Please log in or register to add a comment.
