PPT-1 Concurrency: Deadlock and Starvation

Chapter 6 2 Outline Principles of Deadlock Introduction and conditions for deadlock Deadlock prevention Deadlock Avoidance Deadlock detection An Integrated deadlock strategy Concurrency Mechanisms in UNIX Linux Solaris and Windows. What is it?. What is concurrency?. Concurrency is not a new idea…. Concurrency was first developed by the ancient Babylonians.. They thought about stuff, walked, and chewed gum … all at the same time.. -. Bhavya. . Kilari. Dr. . Yanqing. Zhang, . CSc. 8320. PREVIEW. P. ART. I. : . I. NTRODUCTION. Transaction Processing System. [. R. Chow & T. Johnson, 1997. Prof. O. Nierstrasz. Selected material © Magee and Kramer. © Oscar Nierstrasz. 2. Roadmap. Modelling Concurrency. Finite State Processes . Labelled Transition Systems. Java Threads. Thread creation. cs550. Operating Systems. David . Monismith. Deadlock. Four requirements for deadlock . Hold and wait - process holds resource while waiting for more resources . Mutual Exclusion - resource can't be shared. Networks:. Multi-channel MAC and Power Control. Adviser. . :. . Frank,. . Yeong. -Sung. . Lin. . Presented. . by. . Shin. -. Yao. . Chen. Agenda. Introduction. Starvation in CSMA-based . w. ireless ad hoc networks. Reading Assignment. T. M. Pinkston, . “. Deadlock Characterization and Resolution in Interconnection Networks,. ”. Chapter 13 in . Deadlock Resolution in Computer Integrated Systems. , CRC Press 2004. Reading Assignment. T. M. Pinkston, . “. Deadlock Characterization and Resolution in Interconnection Networks,. ”. Chapter 13 in . Deadlock Resolution in Computer Integrated Systems. , CRC Press 2004. Database Concurrency Control. 1 Purpose of Concurrency Control. To enforce Isolation (through mutual exclusion) among conflicting transactions. . To preserve database consistency through consistency preserving execution of transactions.. IEEE TC. , May 1987. F. . Silla. , and J. . Duato. , “Improving the Efficiency of Adaptive Routing in Networks with Irregular Topology,” . HIPC. 1997. J. . Duato. “A New Theory of Deadlock-Free Adaptive Routing in Wormhole Networks,” . Starvation was the deliberate Nazi policy.. The amount of food allowed in the ghettos changed from day to day, but typically their ration included:. Bread: 14.0 oz.. Meat Products: 4.5 oz.. Sugar: 1.75 oz.. BYU CS 345. Concurrency. 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. P2: Tasking. Motivation, Challenges, Impact on Software Development. CSE 110 – Winter 2016. About These Slides. Due to the nature of this material, this lecture was delivered via the chalkboard. Every was advised that slides would not be available and that notes should be taken. . Sadhna Kumari. OUTLINE. ACID Properties. 2-Phase Commit Protocol. TPS. Serializability. Concurrency Control Protocols. Current Research. Future. References. ACID PROPERTIES. Atomicity: . A . transaction is . 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