PPT-Disks and I/O Scheduling
Author : alyssa | Published Date : 2023-11-09
Don Porter Portions courtesy Emmett Witchel 1 Quick Recap CPU Scheduling Balance competing concerns with heuristics What were some goals No perfect solution Today
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Disks and I/O Scheduling: Transcript
Don Porter Portions courtesy Emmett Witchel 1 Quick Recap CPU Scheduling Balance competing concerns with heuristics What were some goals No perfect solution Today Block device scheduling. Chapter 5: CPU Scheduling. Basic Concepts. Scheduling Criteria . Scheduling Algorithms. Thread Scheduling. Multiple-Processor Scheduling. Operating Systems Examples. Algorithm Evaluation. Objectives. WirelessHART. Networks. by. Abusayeed. . Saifullah. , You Xu, . Chenyang. Lu, and . Yixin. Chen. A Presentation of Findings for CSE5095. Joshua . Ivaldi. Dept of Electrical and Computer Engineering. Main-Memory Workloads. Iraklis. . Psaroudakis. (EPFL). , Tobias Scheuer (SAP AG), Norman May (SAP AG), Anastasia Ailamaki (EPFL). 1. Scheduling for high concurrency. 2. Queries >> H/W contexts. RAID (Redundant Arrays of Independent Disks). Disk . organization technique that manages a large number of disks, providing a view of a single disk of. High capacity and high speed up using multiple disk in parallel. OVERVIEW. Room Scheduling System. (How to find a GPC and schedule it!). Review . Policies. Login to . Room Scheduling System. Learn . 3 . types of searches. Demonstration . Tips. Q&A. Agenda. Sara Cheatham • Stephanie Gonzales • Michael Lee . Suli Yang, Tyler Harter, . Nishant. . Agrawal. , . Samer. Al-. Kiswany. , . Salini. . Selvaraj. . Kowsalya. ,. . Anand. Krishnamurthy, . Rini. T . Kaushik. , . Andrea C. . Arpaci-Dusseau. , . Remzi. CS . 355. Operating Systems. Dr. Matthew Wright. Operating System Concepts. chapter 5. Basic Concepts. Process execution consists of a . cycle. of CPU execution and I/O . wait.. Typical CPU Burst Distribution. Adwait Jog. , Onur Kayiran, Asit Mishra, Mahmut Kandemir, Onur Mutlu, Ravi Iyer, Chita Das . Multi-threading. Caching. Prefetching . Main Memory. . Improve. . Replacement . Policies. Parallelize your code!. and RAID. Outline. Disks. Disk scheduling algorithms. Redundancy in storage . systems, RAID. 2. Disk Geometry. Disks have multiple platters. Each platter has . an arm and a head for accessing data. The arms for the different platters move together. BYU CS 345. Disc Scheduling. 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. 1. Chapter 10. Multiprocessor and. Real-Time Scheduling. BYU CS 345. Chapter 10 - Multiprocessor and Read-Time Scheduling. 2. Classifications of Multiprocessors. Loosely coupled multiprocessor.. each processor has its own memory and I/O channels. Reads and writes are equally fast.. Arrays of these disks are used to provide highly reliable storage.. Increasingly popular as they are fast and do not contain moving parts.. Magnetic Disks.. . What is a magnetic disk and how it works. Use multiple smaller disks (c.f. one large disk). Parallelism improves performance. Plus extra disk(s) for redundant data storage. Provides fault tolerant storage system. Especially if failed disks can be “hot swapped”. WHAT IS THE SCHEDULING GRID?. Used to schedule classes according to fixed patterns. Regular patterns help with room usage and ease of student course scheduling. Built into our scheduling software (IMS, CSS, and .
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