PPT-Chapter 5 Concurrency: Mutual Exclusion and Synchronization

Operating Systems Internals and Design Principles Ninth Edition By William Stallings 2017 Pearson Education Inc Hoboken NJ All rights reserved Multiple Processes Operating System design is concerned with the management of processes and threads. 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 Concurrency: Mutual Exclusion and Synchronization. Operating Systems:. Internals and Design Principles. Seventh Edition. By William Stallings. Operating Systems:. Internals and Design Principles. . Concurrency: Mutual Exclusion and Synchronization. Operating Systems:. Internals and Design Principles, 6/E. William Stallings. Patricia Roy. Manatee Community College, Venice, FL. ©2008, Prentice Hall. Distributed Process Management. Patricia Roy. Manatee Community College, Venice, FL. ©2008, Prentice Hall. Operating Systems:. Internals and Design Principles, 6/E. William Stallings. Process Migration. Slides. are . mainly. . taken. from «O. perating. Systems: Internals and Design Principles”, . 8/E . William Stallings (Chapter . 5). . Sistemi di Calcolo (II semestre) – Roberto Baldoni. Multiple Processes. 1 G52CON Lecture 5: Algorithms for Mutual Exclusion IOutline of this lecture Rui. . Gu. , . Guoliang. . Jin. , . Linhai. Song, . Linjie. Zhu, Shan Lu. University . of Wisconsin – Madison, USA. Proper Thread Synchronization . is . Hard. Very easy to get things wrong. H. ard-to-find concurrency bugs(Data race, Atomicity Violation, Dead Lock). Overview. Concurrent programming and race conditions. Mutual exclusion. Implementing mutual exclusion. Deadlocks, starvation, . livelock. 2. Concurrent Programming. Programming with two or more threads that cooperate to perform a common task. Synchronization Algorithms and Concurrent Programming Gadi Taubenfeld © 2014. . Synchronization Algorithms . and Concurrent Programming. Gadi Taubenfeld. Chapter 10 . Timing-based Algorithms. Version: . Permission-based (. Ricart. & . Agrawala. ). Quorum-based (. Maekawa. ). Token-based (Raymond). Resource Allocation. 1. Distributed Mutual Exclusion. Mutual Exclusion:. a resource granted to a process must be released before it can be granted to another process. CIS 720 Mutual Exclusion 2 Tie Breaker Algorithm in1 = false; in2 = false; last = 1 co CS1: CS2: do true  do true  last = 1; in1 = true; last = 2; in2 = true Software & the Concurrency Revolution by Sutter & Larus ACM Queue Magazine, Sept. 2005 For CMPS 5433 - Halverson 1 In a Nutshell “The concurrency revolution is primarily a software revolution Chapter 5 Concurrency: Mutual Exclusion and Synchronization C Threading BYU CS 345 State Change in C The setjmp / longjmp set of macros implemented in the C provide the perfect platform to perform complex Synchronization 1 CSE 2431: Introduction to Operating Systems Instructor: Adam C. Champion, Ph.D. Reading: Chapters 6, 7 [OSC] (except Sects. 6.9, 7.4, 7.5) Outline Critical region and mutual exclusion