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 Protected from other programs. 15-213 / 18-213: Introduction to Computer Systems. 10. th. Lecture, Sep. . 27, 2012. Instructors:. . Dave O’Hallaron, Greg Ganger, and Greg . Kesden. Today. DRAM as building block for main memory. Memory and Performance. Many . of the following slides are taken with permission from . Complete . Powerpoint. Lecture Notes for. Computer Systems: A Programmer's Perspective (CS:APP). Randal E. Bryant. 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. (DRAM). Local secondary storage. (local disks). Larger, . slower, . and . cheaper . (per byte). storage. devices. Remote secondary storage. (distributed file systems, Web servers). Local disks hold files retrieved from disks on remote network servers.. Storage technologies and trends. Locality of reference. Caching in the memory hierarchy. CS 105. Tour of the Black Holes of Computing. Random-Access Memory (RAM). Key features. RAM. is traditionally packaged as a chip.. 11. th. Lecture, October 2, 2018. Today. Storage technologies and trends. Locality of reference. Caching in the memory hierarchy. Random-Access Memory (RAM). Key features. RAM . is traditionally packaged as a chip.. Lecture for CPSC 5155. Edward Bosworth, Ph.D.. Computer Science Department. Columbus State University. The Simple View of Memory. The simplest view of memory is . that presented . at the ISA (Instruction Set Architecture) level. At this level, memory is a . Dr. . Nizamettin AYDIN. naydin. @. yildiz. .edu.tr. nizamettinaydin@gmail.com. http://. www.yildiz. .edu.tr/~. naydin. 1. Virtual . Memory. 2. Cache memory enhances performance by providing faster memory access speed.. 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 Memory 2 Hakim Weatherspoon 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 Lecture 12: Caches. Life without caches. You decide that you want to learn more about computer systems than is covered in this course. The library contains all the books you could possibly want, but you don't like to study in libraries, you prefer to study at home.. 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. 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.. 17. th. Lecture, . November 1. , 2022. Instructors:. . Dave Andersen (15-213). Zack Weinberg (15-213). Brian Railing (15-513). David Varodayan (14-513). Review: Virtual Addressing. Each process has its own .