performance of cache memory

Question

in cache performace i have confusion about where to use which formula like

for write through whether use H (tc) + (1-H) (tc+m) or  H (tc) + (1-H) (m)

and how to identify whether cache memory is hierarchical or not from question

 

 

can anyone give me all formula related to cache performance with explanation

Comments

Please go through Arjun Sir's answer here https://gateoverflow.in/3653/gate2004-it-12-isro2016-77

---

and what is the formula for write back cache?

---

Use the hierarchical one..

---

ok thanks

Answer 1

Hierarchical formula used

tc*H+(1-H)m