PPT-Chapter 4: Memory Management

Part 2 Paging Algorithms and Implementation Issues Chapter 4 2 CS 1550 cspittedu originaly modified by Ethan L Miller and Scott A Brandt Page replacement algorithms summary Algorithm. Chapter 11. Learning & Behavior (Chance). Chapter Guiding Questions. What are some ways of thinking about memory?. What kinds of memory have been identified?. Where are memories to be found?. What, exactly, is forgetting?. 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. An introduction. What have you forgotten?. 40. What does the number 40 have to do with memory?. Forgetting is normal. Why We Forget?. Inattention. -- distracted, poor encoding. Suggestion. -- we are influenced by other. Brian Kocoloski. . . Jack Lange. University of Pittsburgh. Lightweight Experience in a Consolidated Environment. HPC applications need lightweight resource management. Tightly-synchronized, massively parallel. Man Cao. Jake . Roemer. Aritra. . Sengupta. Michael D. Bond. 1. Parallel Programming is Hard. 2. Parallel Programming is Hard. Shared-memory. 3. Main Memory. CPU. Cache. CPU. Cache. CPU. Cache. CPU. Man Cao. Jake . Roemer. Aritra. . Sengupta. Michael D. Bond. 1. Parallel Programming is Hard. 2. Parallel Programming is Hard. Shared-memory. 3. Main Memory. CPU. Cache. CPU. Cache. CPU. Cache. CPU. OPERATING SYSTEMS . MEMORY MANAGEMENT. 8: Memory Management. 2. What Is In This Chapter?. Just as processes share the CPU, they also share physical memory. This chapter is about mechanisms for doing that sharing.. CprE 381 Computer Organization and Assembly Level Programming, Fall 2013. Zhao Zhang. Iowa State University. Revised from original slides provided . by MKP. Chapter 5 — Large and Fast: Exploiting Memory Hierarchy — . Background. Swapping . Contiguous Memory Allocation. Segmentation. Paging. Structure of the Page Table. Example: The Intel 32 and 64-bit Architectures. Example: ARM Architecture. Objectives. To provide a detailed description of various ways of organizing memory hardware. ) . “. That’s the thing, the bits left behind, they’ll come out, they must.” (Black Diggers. ) . Using . these quotations as a starting point for a comparison between Black Diggers and The Longest Memory, . 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. 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 . Chapter 5 — Large and Fast: Exploiting Memory Hierarchy — . 2. Memory Technology. Static RAM (SRAM). 0.5ns – 2.5ns, $2000 – $5000 per GB. Dynamic RAM (DRAM). 50ns – 70ns, $20 – $75 per GB. 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..