PPT-Chapter 10: Virtual Memory

Chapter 10 Virtual Memory Background Demand Paging CopyonWrite Page Replacement Allocation of Frames Thrashing MemoryMapped Files Allocating Kernel Memory Other Considerations OperatingSystem Examples. 15-213 : Introduction to Computer Systems. 2. 3rd. . March 2015. Today . Virtual Memory. Overview. Address translation. TLB. Memory . mapping. Memory Mapping. VM areas initialized by associating them with disk objects.. Vasileios . Karakostas. , . Jayneel Gandhi. , . Furkan. . Ayar. , . Adrián. Cristal. , . Mark D. Hill. , . Kathryn S. . Mckinley. , . Mario . Nemirovsky. , . Michael M. Swift. , . Osman S. . Ünsal. U . Wisc. and HP Labs. ISCA’13. Architecture Reading Club Summer'13. 1. Key points. Big memory workloads . Memcached. , databases, graph analysis . Analysis shows. TLB misses can account for . upto. 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. 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 . 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. CSE351 Winter 2013. Roadmap. 2. car *c = malloc(sizeof(car));. c->miles = 100;. c->gals = 17;. float mpg = get_mpg(c);. free(c);. Car c = new Car();. c.setMiles(100);. c.setGals(17);. float mpg =. Prof. Eric Rotenberg. 1. Fall 2018. ECE 463/563, Microprocessor Architecture, Prof. Eric Rotenberg. Virtual Memory. Every program has its own virtual memory. Large virtual address space. Divided into . Now that the coronavirus pandemic is coming under control thanks to the introduction of vaccines, some marketers mistakenly believe that virtual events are also coming to an end. 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 Hosting an event can be a wonderful opportunity to build relationships with potential clients, boost your brand’s relevance and reputation, and even have a little fun with showing the world who your brand really is. Visit: https://perigonlive.com Master the concepts of hierarchical memory organization.. Understand how each level of memory contributes to system performance, and how the performance is measured.. Master the concepts behind cache memory, virtual memory, memory segmentation, paging and address translation..