CS 570 Assignment 3 Memory Management Part 1 You are to implement a system call that reports the following statistics over all memory zones: 1. Total number of pages in active LRU lists 2. Total number of pages in inactive LRU lists. 3. Total number of pages in active LRU lists with reference bit set. 4. Total number of pages in inactive LRU lists with reference bit set. 5. Total number of pages that have moved from active to inactive lists since system boot. 6. Total number of pages that have been evicted from the inactive lists since system boot. You also need to provide two user space programs -‐ one manipulates the above statistics and the other reports the statistics using the system call you wrote. If you want you can provide more than one user space program to manipulate the statistics. Part 2 In this part, you are required to replace the second-‐chance LRU approximation algorithm in both of the active and the inactive lists with MRU (Most Recently Used). Note that we only ask you to replace the existing LRU approximation algorithm in each list with the new one. You can leave the basic Linux two-‐list memory management in place. Write a user space program that you can use to test your page replacement implementation algorithm. Submission Submit the patch file, statistics file and the user space programs by sending an email to email@example.com by Wednesday, 18th December 2011, 11:59 p.m.
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