Virtual Memory

Running Head: UNIT 4 PROJECT true-to-life(prenominal) MEMORY whole 4 show Virtual discover Dan Begley IT320 Operating Systems Concepts Abdellah Tazi February 21, 2009 board of Contents Cover Page accede of Contents Abstract Virtual Memory ( component doctor 1) Virtual Memory (Part 2) References Abstract Using the link http://courses.cs.vt.edu/~csonline/OS/Lessons/VirtualMemory/index.html , to display the affectation, the scholar was directed to press the Start passing in rate to initiate a sequence of consummation in which the 8 actiones that take turns referencing memory locations were accesses. Using the snatch disguise the student could actually see the effects on FIFO, LRU, LFU, SC and ergodic in the parameters of number of rapscallion faults, entireness number of page references and page fault rate %. Unit 4 Project Virtual Memory Part 1. aft(pren ominal) pressing the Start button, a sequence of operation was initiated in which the 8 processes took turns referencing the memory locations. The boxes indeed turned dark blue, which indicated that a process was running.

When that box would flip-flop to light blue, it indicated that the process was furbish up to be run, but hadnt split uped as it was waiting for its turn. At first the page frames were exsanguine; which indicated that the frame was empty. After the start button was pressed and the simulation progress began, the running process chose a specific page. If a page fault occurred, consequently the process would alteration pretext to red, ! and the requested page would be put into primary memory. The pertly pages in the page fudge were green. If a process wrote to a page, then the page would change from green to yellow. This indicated that the contents of the page had changed as well as the fact that it should be copied natural covering to disk out front being replaced by another page, (Coutinho, 1996). Part 2. The second simulation figure illustrated the behavior of each of the 5 page...If you want to get a full essay, order it on our website: BestEssayCheap.com

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