InClassActivity15-sol - ECSE-2660 Computer Architecture,...

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Unformatted text preview: ECSE-2660 Computer Architecture, Networks, & Operating Systems, Spring 2003 Page 1 of 2 Activity #15 (Solution) 3/19/2003 11:42 AM Activity 15.1 Memory Organization 1a. (9 points) In virtual memory systems, two address types are used: virtual address and physical address. Which of the following components use virtual addresses for indexing their entries: page table, cache, translation look-aside buffer (TLB), physical memory? Virtual addresses are used in: page table, TLB. The other components use physical addresses. Grading: 1pt for trying, +2pts for each correctly determined address for the four components. 1b. (21 points) In a virtual memory system, some memory content A is to be fetched into CPU. The page table fits into the main memory and single-level paging is applied. Determine the number of necessary accesses to the physical memory for the following cases. Explain your reasoning. TLB has the physical address of A, but cache does not have the content of A. Just 1 for fetching the content of A from the physical memory....
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InClassActivity15-sol - ECSE-2660 Computer Architecture,...

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