Question: When TLB is used for a address translation, effective memory access time is ______Where <em>Pr<sub>1</sub></em> = Probability that page exists in memory<em>Pr<sub>2</sub></em> = Probability that page exists in TLB<em>t<sub>mem</sub></em> = memory access time<em>t<sub>TLB</sub></em> = access time of TLB<em>t<sub>pfh</sub></em> = time overhead of page fault handling
Answer:
MCQ: When TLB is used for a address translation, effective memory access time is ______Where <em>Pr<sub>1</sub></em> = Probability that page exists in memory<em>Pr<sub>2</sub></em> = Probability that page exists in TLB<em>t<sub>mem</sub></em> = memory access time<em>t<sub>TLB</sub></em> = access time of TLB<em>t<sub>pfh</sub></em> = time overhead of page fault handling
Correct Answer:
A. Pr2 × (tTLB + tmem ) + (Pr1 - Pr2) × (tTLB + 2 × tmem) - (1 - Pr1) × (tTLB + tmem + tpfh + tTLB + 2 × tmem)
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Related Questions
- 1. Which of the following is used to reduce the size of memory committed to page tables?
- 2. In which of the following the page table of a process is itself is paged; the entire page table therefore does not need to exist in memory at any time?
- 3. In which of the following the size of page table is governed by the size of memory, so it is independent of the number and size of processes. However information about a page cannot be accessed directly as in page table?
- 4. Page replacement policy should replace a page that is _____
- 5. In which of the following Page replacement Algorithm making pages replacement decisions in such a manner that the total number of page faults during operation of a process is the minimum possible?
- 6. In which of the following Page replacement Policy, at every page fault the page replacement policy replaces the page that was loaded into memory earlier than any other page of the process?
- 7. To facilitate FIFO Page replacement, the virtual memory manager records the time of loading of a page in the _________ field of its page table entry.
- 8. To facilitate Optimal Page replacement, the virtual memory manager records the time of loading of a page in the _________ field of its page table entry.
- 9. To facilitate LRU Page replacement, the virtual memory manager records the time of loading of a page in the _________ field of its page table entry.
- 10. In which of the following Page replacement Policy uses the law of locality of reference as the basis for its replacement decisions?
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