PagingSimulator.java - Homework 4 Paging [email protected]

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/** * Homework 4 - Paging Simulator * @author Michael Riha * * This program simulates the FIFO, second chance, LRU, and random pick * paging algorithms based on various parameters: * * -Processes consist of 10 pages numbered 0 to 9 * -Physical memory has 4 page frames * -Disk has 6 page frames * -Process makes random references to pages * * Each algorithm is ran 5 times with 100 page references per run. The average * hit ratio of pages in memory is calculated during the simulation and printed. * For each reference we print the page numbers of the pages in memory, * which page needed to be paged, and which page was evicted */ public class PagingSimulator { public static final int SIM_RUNS = 5; private static class Simulator { private Pager page; private String pageStr; private double hitRatioSum; public Simulator(Pager page, String pageStr) { this.page = page; this.pageStr = pageStr; this.hitRatioSum = 0.0; } } public static void main(String[] args) { Simulator[] sims = new Simulator[] { new Simulator(new FirstInFirstOutPager(), "First In First Out"),
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  • Fall '10
  • CHUN
  • Algorithms, The Sims, Monte Carlo method, Pages

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