Question

E. How many pages are needed in the second level page table to cover the primary page table?
F. What is the total number of pages that needs to be allocated for the new two-layered paging system?
4. Consider a main memory access time of 15ps.
A. If we used a two-layered paging system, how long would it take to convert a virtual address and access
the memory location?
B. Let's add a really fast cache of 7ns that caches the frame number for a virtual page. What would be
the average access time for the memory if the cache hit rate were 86%? Remember that you still have
to go to the actual frame to get the data!
C. What cache hit rate would we need if we wanted the average time to be 25ps? Again, remember
that the actual data/code memory access of 15ps is included in this figure. Hint: This is an algebra
problem​

Answer 1

Answer:

two

Explanation:

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