Maximum number of processes

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1. The amount of disk space that must be available for page storage is related to the maximum number of processes, n, the number of bytes in the virtual address space, v, and the number of bytes of RAM, r. Give an expression for the worst-case disk-space re- quirements. How realistic is this amount?

2. If an instruction takes 1 nsec and a page fault takes an additional n nsec, give a formula for the effective instruction time if page faults occur every k instructions.

3. A machine has a 32-bit address space and an 8-KB page. The page table is entirely in hardware, with one 32-bit word per entry. When a process starts, the page table is cop- ied to the hardware from memory, at one word every 100 nsec. If each process runs for 100 msec (including the time to load the page table), what fraction of the CPU time is devoted to loading the page tables?

Reference no: EM13972222

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