운영체제 8장, 9장 연습문제(Review question, problem) 풀이
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- 2008.06.21
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- 2008.05
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운영체제 내부구조 및 설계원리 5판 도서출판 그린
operating systems internals and design principles WILLIAM STALLINGS
연습문제 8,9장 풀이입니다
목차
Review Questions
8.2 Explain thrashing
8.10 Why is it not possible to combine a global replacement policy and a fixed allocation policy?
9.3 What is the difference between turnaround time and response time?
Problems
8.1
8.4
9.13
본문내용
Review Questions
8.2 Explain thrashing
A phenomenon in virtual memory schemes, in which the processor spends most of its time swapping pieces rather than executing instructions.
8.10 Why is it not possible to combine a global replacement policy and a fixed allocation policy?
A fixed allocation policy requires that the number of frames allocated to a process is fixed, when it comes time to bring in a new page for a process, one of the resident pages for that process must be swapped out which is a local replacement policy.
9.3 What is the difference between turnaround time and response time?
Response time : It means the time that until let output out of requested job by process.
Turnaround time : It means a staying time in system after enter the system(waiting time +execute time)
Problems
8.1 Suppose the page table for the process currently executing on the processor looks like the following. All numbers are decimal, everything is numbered starting from zero, and all addresses are memory byte addresses. The page size is 1024 bytes.
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