21. A system has the following characteristics:
Memory Access (read/write) : 50ns
disk access : 20ms
TLB access : 10ns
TLB hit ratio : 90%
page fault ratio : 5%
You may assume that all page faults require a block to be written.
For this system, calculate effective memory access time assuming
that 2level paging is used. Show your work.
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21. A system has the following characteristics: Memory Access (read/write) : 50ns disk access : 20ms...
If the page fault rate is given by F, and the TLB hit rate is given by H. Both F & H are in the range [0,1]. Give a formula for the effective memory access time of a paging system if the normal memory access time is N, and the time it takes to serve the page fault (i.e. to read the page from disk and update the page able) is T, and the time it takes to read the...
Number Name 3. Assuming no page fault on a page table access, what is the processor memory access time for the system depicted in the above figure, for a physical memory with 50ns read/write times? 4. Now, assume that the memory system has a translation look-aside buffer (TLB). The TLB requires 10 ns to determine a hit or mess. The physical memory system has an access time of 50ns. You may assume that page fault rate for the application is...
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Question 30 7 pts Consider a computer system that uses virtual memory with paging with a TUB. Suppose main memory access time is 10 ns and the time to look up the TLB 1 ns. Assume no page faults and the TLB has a hit of 95%. What is the effective memory access time (express in ns)
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