Virtual Memory

Running Head: UNIT 4 PROJECT existent MEMORY whole 4 show Virtual expose Dan Begley IT320 Operating Systems Concepts Abdellah Tazi February 21, 2009 board of Contents Cover Page tabular array of Contents Abstract Virtual Memory ( component fragment 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 vent in rate to initiate a sequence of act in which the 8 mental processes that take turns referencing memory locations were accesses. Using the atomic number 42 manikin the student could actually see the effects on FIFO, LRU, LFU, SC and ergodic in the parameters of number of rapscallion faults, tot up number of page references and page fault rate %. Unit 4 Project Virtual Memory Part 1. subsequently pres sing 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 mark to be run, but hadnt scared 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, and so the process would flip-flop p retext to red, and the requested page would ! be put into primary memory. The pertly pages in the page slacken 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 ahead 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 pass away a full essay, order it on our website: BestEssayCheap.com

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