PPT-Virtual Memory

Use main memory as a cache for secondary disk storage Managed jointly by CPU hardware and the operating system OS Programs share main memory Each gets a private virtual address space holding its frequently used code and data. Avg Access Time 2 Tokens Number of Controllers Average Access Time clock cyles brPage 16br Number of Tokens vs Avg Access Time 9 Controllers Number of Tokens Average Access Time clock cycles brPage 17br brPage 18br Prof. Van Renesse & . Sirer. Segments. Note: overloaded term…. Chunks of . virtual. address space. Access Protection. User/Supervisor. Read/Write/Execute. Sharing. Code, libraries. Shared memory for IPC. Hakim Weatherspoon. CS 3410, Spring 2013. Computer Science. Cornell University. P & H Chapter 5.4 . Goals for Today. Virtual Memory. Address Translation. Pages, page tables, and memory . mgmt. unit. BYU CS 345. Virtual Memory. 2. Topics to Cover…. Program Execution Patterns. Computer Memory. Virtual Memory. Paging. Segmentation. Performance. Replacement Algorithms. Paging Improvements. Objectives. Apr 25, 2017. 1. Memory (Programmer. ’. s View) . 2. Hmmm, How Does This Work?! . Process 1. Process 2. Process n. Solution: Virtual Memory (today and next lecture). 3. Today . Virtual Memory: Concepts . 2017. Instructor:. . Ruth Anderson. Teaching Assistants:. Dylan Johnson. Kevin Bi. Linxing. Preston Jiang. Cody . Ohlsen. Yufang. Sun. Joshua Curtis. Administrivia. Midterms Graded. If you did not receive an email from . Virtual Memory Use main memory as a “cache” for secondary (disk) storage Managed jointly by CPU hardware and the operating system (OS) Programs share main memory Each gets a private virtual address space holding its frequently used code and data Virtual World pros & cons Outline Virtual Reality Virtual World Second Life Pros & Cons How Second life Affects Real Life Are we ready to live in a Virtual World? Virtual Reality Virtual reality (VR) is a powerful technique that uses computer representations to transform people's sense of presence, so that they feel themselves to be in a virtual environment rather their current one. CS 3410, Spring 2012. Computer Science. Cornell University. P & H Chapter 5.4 . Goals for Today. Virtual Memory. Address Translation. Pages, page tables, and memory . mgmt. unit. Paging. Role of Operating System. 15-213: Introduction to Computer Systems . 16. th. . Lecture, Oct. . 22. , 2013. Instructors:. . Randy Bryant, Dave . O’Hallaron. , and Greg . Kesden. Today . Address spaces. VM as a tool for caching. Perigon Live, a leading provider of digital event software, announces the addition of the Green Room to its feature-rich product. Visit: https://perigonlive.com Although some event planners still think it will be too challenging to take their activities and skills online, this is no longer the case. Visit: https://perigonlive.com Perigon Live, a leading virtual event platform provider, offers a wide range of services and customizable options designed to make virtual events successful. Visit: https://perigonlive.com If you are toying with the idea of hosting a virtual event to drive interest in a product, elevate your brand’s reputation, or simply build rapport with would-be clients, it’s important to note that a good virtual event requires at least some level of professional production in order to keep your attendees interested. Visit: https://perigonlive.com