PPT-Xinu Semaphores 10/23/2015

Author : belinda | Published Date : 2023-06-23

Page 2 Concurrency An important and fundamental feature in modern operating systems is concurrent execution of processesthreads This feature is essential for the

Presentation Embed Code

Download Presentation

Download Presentation The PPT/PDF document "Xinu Semaphores 10/23/2015" is the property of its rightful owner. Permission is granted to download and print the materials on this website for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.

Xinu Semaphores 10/23/2015: Transcript

Page 2 Concurrency An important and fundamental feature in modern operating systems is concurrent execution of processesthreads This feature is essential for the realization of multiprogramming multiprocessing distributed systems and clientserver model of computation. wait Bi l s gna C lock acquire D lock release E signalAll Hoare monitor semantics Assume thread T1 is waiting on condition Assume thread T2 is in the monitor Assume thread T2 calls x signal T2 ives u monitor T2 blocks gp T1 takes over monitor run 9TH-A DOC-4/04/2015 10TH-A DOC-4/04/2015 NTSE OE,W DOC 28/03/2015 OE,SEMI WEEKEND DOC 28/03/2015 NE-W DOC 4/04/2015 NE-SEMI WEEKEND DOC 4/04/2015 NER ZENNITH-2016 RE-1 DOC-22/05/2015 RE-2 MATERIAL M ODD SEM J ULY DATE DAY DESCRIPTION 1 .07.2015 Wednesday Reopening day 2 .07.2015 Thursday 3 .07.2015 Friday 4 .07.2015 Saturday 5 .07.2015 Sunday 6 .07.2015 Monday 7 .07.2015 Tuesday 8 .07.2015 Wedn 18/02/2015 11/02/2015 4/02/2015 11/02/2015 18/02/2015 Silver DragonsNinja TigersSH DolphinsGreen MambasNinja TigersSH DolphinsSH DolphinsGreen MambasVictorious vanquishedVanquished VictorsNinja Tigers and more…. 1. Operating Systems, 2011, Danny Hendler & Amnon Meisels. What’s wrong with busy waiting?. Doesn‘t make sense for . Uni. -processor. Wastes CPU time. May cause priority inversion and deadlock. Readings. Silbershatz. : Chapter 5. Mutual Exclusion in Critical Sections. RoadMap. Today there are libraries that provide application programmers with . semaphores . . Semaphores are used by programmers to. CSCI 201L. Jeffrey Miller, Ph.D.. http://www-scf.usc.edu/~csci201. USC CSCI 201L. Outline. USC CSCI 201L. 2. /7. Semaphores. Program. Semaphores. Semaphores can restrict the number of threads that access a shared resource. 6/3/2015 6/3/2015 6/3/2015 6/3/2015 Where{powermicronewtons=force}revolutiongram{metric 6/3/2015 Wheredefragreinterpretgrowth Founder CEO Venture Capital 6/3/2015 YouRevenue GenerationCapital Manageme 120. Principles . of. . Operating. Systems. Spring. . 201. 7. Condition Variables and. . Monitors. Monitors. October 13,. . 2015. CSE 120 – Lecture 6 – Semaphores and. . Monitors. 2. A . monitor is . . Operating. Systems. Spring. . 2016. Using . Semaphores and. . Condition Variables. Higher-Level. . Synchronization. October 13,. . 2015. CSE 120 – Lecture 6 – Semaphores and. . Monitors. 2. Page . 2. Concurrency. An important and fundamental feature in modern operating systems is concurrent execution of processes/threads. This feature is essential for the realization of multiprogramming, multiprocessing, distributed systems, and client-server model of computation.. Midterm Review. Synchronization: deadlock (recap). CS354-Fall2018. 1. Midterm: Thursday October 11, 6:30 PM-7:30PM, Lilly 1105. Bring your ID (will be checked). Closed book/note/phone/laptop/other electronic . I. nterface for . N. onhaptic . U. se. Gerhard Zucker. Stefan Hutter. Charlotte Rösener. Sparkling Science Projekt SPA/02 – 53/XINU. Übersicht. XINU Partner. Motivation. Grundlagen. Konzept. Demo . 14, . 2012. University . of . Illinois. Slides adapted in . part from . material accompanying Bryant & . O’Hallaron. , “Computer . Systems: A Programmer's . Perspective”, 2/E. Announcements.

Download Document

Here is the link to download the presentation.
"Xinu Semaphores 10/23/2015"The content belongs to its owner. You may download and print it for personal use, without modification, and keep all copyright notices. By downloading, you agree to these terms.