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Quiz 3

Consider a system with a physical memory latency of 200nsec, and which uses paging with page tables in memory. If the TLB hit rate is 90 %, then what is the average latency of a paged memory reference? Assume that a TLB hit takes no time for address translation

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Quiz 3

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  1. Consider a system with a physical memory latency of 200nsec, and which uses paging with page tables in memory. If the TLB hit rate is 90 %, then what is the average latency of a paged memory reference? Assume that a TLB hit takes no time for address translation In a virtual memory system with a 32 bit address space: Each process gets 232 bytes of memory All the processes together get 232 bytes of memory It can’t be determined how much memory each process will get. 3. A computer with a 32 bit address space uses two level page tables. Virtual addresses are split as follows: a) 8 bit top level page table field, b) 12 bit second-level page table field c) an offset. Assuming that each page table entry takes 4 bytes, a) What is the size of the top level page table? b) What is the size of each level 2 page table? Quiz 3 Cpr E 308 Spring 2005

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