PPT-Linux Scheduling Algorithm

Ashish Singh Introduction History and Background Linux Scheduling Modification in Linux Scheduling Results Conclusion References Questions History and Background In 1991 Linus Torvalds took a college computer science course that used the Minix operating system. se Abstract Global 64257xedpriority scheduling of constrained deadline sporadic tasks systems is important not only for CPU scheduling but also in other domains for example scheduling realtime 64258ows in WirelessHART networks designed for industrial 1 CPU scheduling algorithm determines an order for the execution of its scheduled processes Given processes to be scheduled on one processor how many different schedules are possible Give a formula in terms of n Answer n factorial 1 2 1 62 Exp of Heterogonous Earliest Finish Time (HEFT) Algorithm . Kevin . Tzeng. Task Scheduling for Heterogeneous Computing . Similar to . R|pmtn|Cmax. , but without preemptions and with precedence constraints. Chapter 5: CPU Scheduling. Basic Concepts. Scheduling Criteria . Scheduling Algorithms. Thread Scheduling. Multiple-Processor Scheduling. Operating Systems Examples. Algorithm Evaluation. Objectives. References. Silberschatz. et al, Chapter 5.6, Chapter 22.3.22 . Note: Process/Thread. A unit of execution is a process. Processes can create a unit of execution called a . thread . Threads share data with processes. Abdulrahman. . Idlbi. COE, KFUPM. Jan. 17, 2010. Past Schedulers: 1.2 & 2.2. 1.2: circular queue with round-robin policy.. Simple and minimal.. Not focused on massive architectures.. 2.2: introducing scheduling classes (real-time, non-preemptive, non-real-time).. Ravishankar. . Krishnaswamy. Carnegie Mellon University. Joint work with Nikhil . Bansal. and . Viswanath. . Nagarajan. . (IBM T. J. Watson Research Lab). Outline. Motivation, Problem Definition. . . --Distributed Process Scheduling. Student: Zhibo Wang. Professor: Yanqing Zhang. Chapter Outline. Three process models: precedence, communication, and disjoint. A system performance model that illustrate the relationship among the algorithm, scheduling, and architecture. -Ashish Singh. Introduction. History and Background. Linux Scheduling. Modification in Linux Scheduling. Results. Conclusion. References. Questions. History and Background. In 1991 Linus Torvalds took a college computer science course that used the Minix operating system. Deterministic Proportional-Share Resource Management. Carl A. . Waldspurger. , William E. . Weihl. MIT Laboratory for Computer Science. Presenter: Dong-hyeon Park. EECS 582 – W16. 1. Background: Proportional-Share Schedulers. Select process to . run next . Must handle…. Priorities . Forking . – where does child go? . What . about if you only use part of your quantum? . E.g. ., blocking I/O. Linux 2.4. Linux scheduler had a single list of tasks. Background Introduction Android OS Architecture Feasibility and Necessity Android RTS Architecture Limitation Improvement Lei Cui Evaluating Android OS for Embedded Real-Time Syst em Background Introduction Industrial Wireless . Sensor Networks. Mohsin. Hameed, Henning . Trsek. , Olaf . Graeser. and . Juergen. . Jasperneite. 1. Presented By: . Aniket. Shah. Outline. Introduction. Related Work. Engineering Aspects. Multi-Core DRAM Controllers. Thomas Moscibroda. Distributed Systems Research, Redmond. Onur Mutlu. Computer Architecture Research, Redmond. TexPoint fonts used in EMF. . Read the TexPoint manual before you delete this box.: .