Question: Virtual memory uses a page table to track the mapping of virtual addresses to physical addresses. This exercise shows how this table must be updated

Virtual memory uses a page table to track the mapping of virtual addresses to physical addresses. This exercise shows how this table must be updated as addresses are accessed. The following data constitutes a stream of virtual addresses as seen on a system. Assume 4 KiB pages, a 4-entry fully associative TLB, and true LRU replacement. If pages must be brought in from disk, increment the next largest page number.

4669, 2227, 13916, 34587, 48870, 12608, 49225

TLB

Virtual memory uses a page table to track the mapping of virtual

Page table

addresses to physical addresses. This exercise shows how this table must be

Given the address stream shown, and the initial TLB and page table states provided above, show the final state of the system. Also list for each reference if it is a hit in the TLB, a hit in the page table, or a page fault.

Physical Page Number Valid Tag 12

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