PPT-Chapter 9: Main Memory Chapter 9: Memory Management

Background Contiguous Memory Allocation Paging Structure of the Page Table Swapping Example The Intel 32 and 64bit Architectures Example ARMv8 Architecture Objectives To provide a detailed description of various ways of organizing memory hardware. And 57375en 57375ere Were None meets the standard for Range of Reading and Level of Text Complexity for grade 8 Its structure pacing and universal appeal make it an appropriate reading choice for reluctant readers 57375e book also o57373ers students Cache Memory. Computer Organization and Architecture. William Stallings . 8th Edition. Memory subsystem. Typical computer system is equipped with a hierarchy of memory subsystems, some internal to the system (directly accessible by the processor) and some external (accessible by the processor via an I/O module).. Disk Controller 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. Brian Kocoloski. . . Jack Lange. University of Pittsburgh. Lightweight Experience in a Consolidated Environment. HPC applications need lightweight resource management. Tightly-synchronized, massively parallel. (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.. BYU CS 345. Memory Management. 2. CS 345. Stalling’s Chapter. #. Project. 1: Computer System Overview. 2: Operating System Overview. 4. P1:. Shell. 3: Process Description and Control. 4: Threads. 4. 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. Von Neumann architecture:. Program and data is in the same memory (code . is. data). Harvard architecture:. Physically separate memory for code and data. Program must be brought (from disk) into memory and placed within a process for it to be run. Semiconductor Main . Memory. Nowadays, the . use of semiconductor . chips for . main memory is almost . universal.. Organization. T. he . basic element of a semiconductor memory is the . memory cell. 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 How Does Your Memory Work? Video Questions. 1. What part of your brain springs to action when your memory “network” is activated? . 2. Describe these 3 major functions of memory as described in the video: . Outline. Introduction. Memory Management Basics. Android Memory Management. iOS Memory Management. 2. Goal of Memory Management. Memory management is part of an operating system which allocates memory among competing processes, maximizing memory utilization and system throughput. with Low Complexity and Low Latency . Gennady Pekhimenko, Advisers: Todd C. Mowry and Onur Mutlu (Carnegie Mellon University). Executive Summary. Main memory is a limited shared resource. . Observation.