For clock, also write the values of the reference bits, and put a star in the frame where the clock hand currently points Physical memory has three pages (1, 2, 3) and data pages requested are identified by letters (A, B, C...). The computer has just booted up and user process memory is empty In this problem, time moves from left to right. (In class, we sometimes drew time from the top down.) (a) LRU (Time 0 >-> -> Time Infinity) Page requested: т O В Е O R. N O т O В Page 1 Page 2 Page 3 Mark X if a fault occurs: (b) FIFO (Time 0 > ->-+ Time Infinity) Page requested: O В E O R. O В O Page 1 Page 2 Page 3 Mark X if a fault occurs: EH
For clock, also write the values of the reference bits, and put a star in the frame where the clock hand currently points Physical memory has three pages (1, 2, 3) and data pages requested are identified by letters (A, B, C...). The computer has just booted up and user process memory is empty In this problem, time moves from left to right. (In class, we sometimes drew time from the top down.) (a) LRU (Time 0 >-> -> Time Infinity) Page requested: т O В Е O R. N O т O В Page 1 Page 2 Page 3 Mark X if a fault occurs: (b) FIFO (Time 0 > ->-+ Time Infinity) Page requested: O В E O R. O В O Page 1 Page 2 Page 3 Mark X if a fault occurs: EH
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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For each of the following page replacement policies, list the total number of page faults and fill in the contents ofthe page frames of memory after each memory reference.
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