Bijendra
Ch09
UNIT – IV VIRTUAL MEMORY MANAGEMENT Handled by K. Venkatesh & Razia Sultana.
9.4 Page Replacement What if there is no free frame? Page replacement –find some page in memory, but not really in use, swap it out In this case, same.
Page Replacement Algorithms Want lowest page-fault rate Evaluate algorithm by running it on a particular string of memory references (reference string)
CGS 3763 Operating Systems Concepts Spring 2013 Dan C. Marinescu Office: HEC 304 Office hours: M-Wd 11:30 - 12:30 AM.
A. Frank - P. Weisberg Operating Systems Page Replacement Algorithms.
Silberschatz, Galvin and Gagne 2002 10.1 Operating System Concepts Virtual Memory Virtual memory – separation of user logical memory from physical memory.
Background Virtual memory – separation of user logical memory from physical memory. Only part of the program needs to be in memory for execution. Logical.
Chapter 9: Virtual Memory. Background Demand Paging Copy-on-Write Page Replacement Allocation of Frames Thrashing Memory-Mapped Files Allocating Kernel.
Dr. Kalpakis CMSC 421, Operating Systems kalpakis/Courses/421 Virtual Memory.
OSCh10
