'Wait condition' presentation slideshows

Chapter 3: Deadlocks

Chapter 3: Deadlocks. Instructor: Hengming Zou, Ph.D. In Pursuit of Absolute Simplicity ?????????. Content. Resource Deadlocks Deadlock modeling Deadlock detection and recovery Deadlock avoidance and prevention. Resources. Something needed by a thread A thread waits for resources

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Real-Time Systems Lecture 8

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Deadlocks

Deadlocks. 3.1. Resource 3.2. Introduction to deadlocks 3.3. The ostrich algorithm 3.4. Deadlock detection and recovery 3.5. Deadlock avoidance 3.6. Deadlock prevention 3.7. Other issues. Chapter 3. Agenda. 3.1. Resource

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CS 241 Section Week #7 (10/22/09)

CS 241 Section Week #7 (10/22/09). Topics This Section. Midterm Statistics MP5 Forward Classical Synchronization Problems Problems. Midterm Statistics. Avg: 18.6 Median: 19 Max: 25 Min: 10 Standard Deviation: 3.3. MP5 Overview. MP5 Overview.

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Deadlock Chapter 3

Deadlock Chapter 3. R1. P1. P2. R2. Allocated. Requested. Resources. Processes compete for system resources CPU cycles I/O devices Printers Tape drives Files Tables Database records. Resources: Preemptible vs. Nonpreemptible. Preemptible

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Deadlock Prevention, Avoidance, and Detection

Deadlock Prevention, Avoidance, and Detection. The Deadlock problem. In a computer system deadlocks arise when members of a group of processes which hold resources are blocked indefinitely from access to resources held by other processes within the group. Deadlock example.

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Deadlocks

Deadlocks. 3.1. Resource 3.2. Introduction to deadlocks 3.3. The ostrich algorithm 3.4. Deadlock detection and recovery 3.5. Deadlock avoidance 3.6. Deadlock prevention 3.7. Other issues. Chapter 3. Resources.

297 views • 29 slides

Deadlocks

Deadlocks. 3.1. Resources 3.2. Introduction to deadlocks 3.3. The ostrich algorithm 3.4. Deadlock detection and recovery 3.5. Deadlock avoidance 3.6. Deadlock prevention 3.7. Other issues. Chapter 3. Resources.

299 views • 29 slides

SCOOPLI for .NET : a library for concurrent object-oriented programming

SCOOPLI for .NET : a library for concurrent object-oriented programming. Volkan Arslan, Piotr Nienaltowski Chair of Software Engineering, ETH Zurich. Overview. Motivation The SCOOP model for concurrent OO programming SCOOPLI library Implementation for .NET Conclusions. Motivation.

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Deadlocks

Deadlocks. Chapter 3. Resources. Examples of computer resources printers tape drives tables Processes need access to resources in reasonable order Suppose a process holds resource A and requests resource B at same time another process holds B and requests A both are blocked and remain so.

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Deadlocks, Message Passing Brief refresh from last week

Deadlocks, Message Passing Brief refresh from last week. Tore Larsen Oct. 2010. Deadlocks. Formal definition : A set of processes is deadlocked if each process in the set is waiting for an event that only another process in the set can cause

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Proving Correctness and Measuring Performance

Proving Correctness and Measuring Performance. CET306 Harry R. Erwin University of Sunderland. Texts. Clay Breshears (2009) The Art of Concurrency: A Thread Monkey's Guide to Writing Parallel Applications , O'Reilly Media.

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