Recent questions tagged page-fault - GATE CSE Doubts

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Operating system Ace Test Series Page replacement

asked Dec 31, 2019 in Operating System by Chirag Shilwant (181 points) | 23 views

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Confusion in Effective access time
I am slightly confused in the $\text{effective access time(EAT)}$ when TLB access time and page fault service time are given $\text{t - TLB access time}$ $\text{s - page fault service time(PFST)}$ $\text{m - Memory access time}$ $\text{p - Page fault rate[PFR]}$ ... $+ (1-p)* \textbf{[}h * (t+m) + (1-h)*\{t+(n+1) * m\} \textbf{]} $ Please check it.

asked Dec 20, 2019 in Operating System by !KARAN (356 points) | 20 views

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Ace grand subject test 42 Operating system
can some one tell the method to solve the below question? Thank you

asked Nov 11, 2019 in Operating System by Pratyush Priyam Kuan (804 points) | 16 views

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Doubt Operating system
Consider a program with 5 pages and reference string w= 1 2 3 4 1 2 5 1 2 3 4 5 Which of the following pages are not victims if FIFO page replacement is used on three frames? 1 2 5 2 3 5 1 2 3 4 what does here “pages are not victims if FIFO is used “ means?

asked Oct 12, 2019 in Operating System by Priyansh Singh (257 points) | 27 views

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OPERATING SYSTEM TLB AND EMAT
Can someone please explain how TLB formula is changed when other concepts like page fault and cache concepts are introduced. There is a lot of confusion and not getting clear explanations. It would be very helpful for every beginners like me. TLB #### EMAT = Ht( t ... also. ( p= page fault rate , PS= pagefault service time, c= cache access time, Hc= hit rate of cache )

asked Aug 5, 2019 in Operating System by shankargadri (8 points) | 11 views

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Effective Memory Access Time ( OS)
What is the Emat (effective memory access time) when we are given page fault rate? In gate do we have to consider whether memory access time is included in the Page fault service time or not ? where { p = page fault rate, PS = Page fault service time, m = memory access time } Option 1( ... Emat = p(PS + m) + (1-p)(m) = p(PS)+ m or Option 2: Emat = p(PS) + (1-p)(m)

asked Jul 27, 2019 in Operating System by nadeshseen (43 points) | 25 views

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