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h) (Total: 9 marks). Consider a paging system where the page table is stored in cache memory. The hit ratio is 90% (mean
Posted: Thu Jul 14, 2022 2:06 pm
by answerhappygod
- H Total 9 Marks Consider A Paging System Where The Page Table Is Stored In Cache Memory The Hit Ratio Is 90 Mean 1 (54.39 KiB) Viewed 23 times
h) (Total: 9 marks). Consider a paging system where the page table is stored in cache memory. The hit ratio is 90% (means the page table entry will be found in cache 90% of the time). Assume the normal memory access time is 1 microseconds. (i) (3 marks). If checking the entry in the cache takes 0.1 microseconds, what is the effective (average) paged memory access time? (ii) (3 marks). If swap-in and swap-out time each requires 10 milliseconds, and on average, 40% of the pages are dirty, i.e., modified, what is the effective page fault service time? You can ignore all processing times other than page swaps between memory and secondary storage. (iii) (3 marks). If page faults occur once in 40000 references, what is the effective demandpaged memory access time? For each answer, show your detailed calculation.