'Lowest page fault rate' presentation slideshows

Chapter 9: Virtual Memory Management

Chapter 9: Virtual Memory Management. Chien Chin Chen Department of Information Management National Taiwan University. Background (1/5). Methods in Chapter 8 require that an entire process be in memory before it can execute .

878 views • 79 slides

Virtual Memory (b)

Virtual Memory (b). Basic Page Replacement. Find the location of the desired page on disk. Find a free frame: - If there is a free frame, use it. - If there is no free frame, use a page replacement algorithm to select a victim frame.

539 views • 53 slides

Computer Science Overview Chapter Three-Operation System (3)

Computer Science Overview Chapter Three-Operation System (3). JainShing Wu. Virtual Memory. Lack of memory For multi-tasking Paging. Virtual Memory. Provides application a full continuous memory but actual fragments

470 views • 45 slides

Computer Science Overview Chapter Three-Operation System (3)

Computer Science Overview Chapter Three-Operation System (3). JainShing Wu. Virtual Memory. Lack of memory For multi-tasking Paging. Virtual Memory. Provides application a full continuous memory but actual fragments

452 views • 45 slides

Virtual Memory

Virtual Memory. Chapter 9. Objectives. To describe the benefits of a virtual memory system To explain the concepts of: demand paging page-replacement algorithms allocation of page frames To discuss the principle of the working-set model. Chapter Outline. Background Demand Paging

403 views • 39 slides

Chapter 10: Virtual Memory

Chapter 10: Virtual Memory. Background Demand Paging Process Creation Page Replacement Allocation of Frames Thrashing Operating System Examples (not covered in class) Chapter 10 to page 328, 330-343, 344-353. Background.

399 views • 29 slides

CSC 539: Operating Systems Structure and Design Spring 2006

CSC 539: Operating Systems Structure and Design Spring 2006. Virtual memory background demand paging page replacement: FIFO, OPT, LRU allocation of frames thrashing OS examples. Virtual memory.

632 views • 28 slides

Jerry Breecher

OPERATING SYSTEMS VIRTUAL MEMORY. Jerry Breecher. VIRTUAL MEMORY. WHY VIRTUAL MEMORY? We've previously required the entire logical space of the process to be in memory before the process could run. We will now look at alternatives to this.

448 views • 28 slides

Jerry Breecher

OPERATING SYSTEMS VIRTUAL MEMORY. Jerry Breecher. VIRTUAL MEMORY. WHY VIRTUAL MEMORY? We've previously required the entire logical space of the process to be in memory before the process could run. We will now look at alternatives to this.

416 views • 28 slides

Operating Systems

388 views • 28 slides

Chapter 9: Virtual Memory

Chapter 9: Virtual Memory. Virtual Memory. Can be implemented via: Demand paging Demand segmentation temp. Demand Paging. Bring a page into memory only when it is needed Page table used for tracking which pages are in memory Page fault if not in memory Get empty frame

392 views • 27 slides

CSC 539: Operating Systems Structure and Design Spring 2005

CSC 539: Operating Systems Structure and Design Spring 2005. Virtual memory background demand paging page replacement: FIFO, OPT, LRU allocation of frames thrashing OS examples. Virtual memory.

433 views • 26 slides

Chapter 9: Virtual Memory

Chapter 9: Virtual Memory. Chapter 9: Virtual Memory. Background Demand Paging Copy-on-Write Page Replacement Allocation of Frames Thrashing Memory-Mapped Files Allocating Kernel Memory Other Considerations Operating-System Examples. Background.

389 views • 22 slides

Operating Systems Lecture 38 Frame Allocation Read Ch. 10.5 - 10.6

Operating Systems Lecture 38 Frame Allocation Read Ch. 10.5 - 10.6. Page Replacement Algorithms. Page replacement algorithms select the page to be replaced. Want lowest page-fault rate.

298 views • 16 slides