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4. [10%] Assume we have a demand-paged memory, and the page table is held in registers (zero access time). It takes 5ms to service a
4. [10%] Assume we have a demand-paged memory, and the page table is held in registers (zero access time). It takes 5ms to service a page fault if an empty frame is available or the replaced page is clean, and 10ms if the replaced page is dirty. The percentage that a replaced page is dirty is 20%. Memory access time is 100 ns. What is the maximum acceptable page-fault rate for an effective access time of no more than 150ns
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