'Race condition' diaporamas de présentation

2.3 InterProcess Communication (IPC)

2.3 InterProcess Communication (IPC). IPC methods. Signals Mutex (MUTual EXclusion) Semaphores Shared memory Memory mapped files Pipes & named pipes Sockets Message queues MPI (Message Passing Interface) Barriers. IPC methods between threads. Mutex Semaphores.

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CSE 513 Introduction to Operating Systems Class 3 - Interprocesses Communication & Synchronization

Jonathan Walpole Dept. of Comp. Sci. and Eng. Oregon Health and Science University. CSE 513 Introduction to Operating Systems Class 3 - Interprocesses Communication & Synchronization. Race conditions. What is a race condition?

1.01k views • 88 slides

Concurrency : Mutual Exclusion and Synchronization

Concurrency : Mutual Exclusion and Synchronization. Concurrent execution of processes Multiprogramming 1 CPU, many processes Multiprocessing 1 computer with more than 1 CPU, many processes Distributed processing more than 1 computer each may or may not have more than 1 processor

857 views • 70 slides

Application Security

Application Security. CISSP Guide to Security Essentials Chapter 3. Objectives. Types of applications Application models and technologies Application threats and countermeasures Security in the software development life cycle. Objectives (cont.). Application security controls

1.25k views • 67 slides

CPS110: Thread cooperation

CPS110: Thread cooperation. Landon Cox January14, 2009. Project 0 . void main () { // create a new list Dlist<foo> *list = new Dlist<foo> (); // insert a new object list->insertFront (new foo ()); // remove and delete the object delete list->removeFront ();

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Semaphores

Semaphores. Chapter 7 from Inter-process Communications in Linux: The Nooks & Crannies by John Shapley Gray Publisher: Prentice Hall Pub Date: January 13, 2003. SEMAPHORES. Topics. SEMAPHORES. Race condition . SEMAPHORES. Race condition. SEMAPHORES. Race condition. SEMAPHORES.

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CS4961 Parallel Programming Lecture 5: Data and Task Parallelism, cont. Data Parallelism in OpenMP Mary Hall September

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528 views • 36 slides

Lecture #31 Flip-Flops, Clocks, Timing

Lecture #31 Flip-Flops, Clocks, Timing. Last lecture: Finite State Machines This lecture: Digital circuits with feedback Clocks Flip-Flops. Clocked Logic.

573 views • 35 slides

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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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.

454 views • 33 slides

Trust, Safety and Reliability

Trust, Safety and Reliability. CS 340, Spring 2013 Ch. 5 in Ethics in a Computing Culture. Computer errors. A range of possible consequences Seconds lost, other inconvenience Data lost $ - $$$ Injuries and deaths Examples: Disfranchised voters False arrests Price & billing errors

785 views • 32 slides

Shared Memory Coordination

Shared Memory Coordination. We will be looking at process coordination using shared memory and busy waiting . So we don't send messages but read and write shared variables. When we need to wait, we loop and don't context switch. This can be wasteful of resources if we must wait a long time.

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A Tetherless Computing Architecture

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A Modular Checker for Multithreaded Programs

A Modular Checker for Multithreaded Programs. Cormac Flanagan HP Systems Research Center Joint work with Shaz Qadeer Sanjit A. Seshia. Multithreaded programs. Operating systems, databases, web servers, file systems, web browsers Large programs, many threads Correctness problem:

233 views • 23 slides

A Client Side Defense against Address Resolution Protocol (ARP) Poisoning

A Client Side Defense against Address Resolution Protocol (ARP) Poisoning. George Mason University INFS 612, Spring 2013 Group #3 (C. Blair, N. Eisele , N. Rehman , T. Troy). Topics. Abstract ARP Introduction Problem Related Research Works Pros / Cons of Other Solutions

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ICE

307 views • 13 slides

The Therac-25: A Software Fatal Failure

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376 views • 12 slides

Timing and Race Condition Verification of Real-time Systems

553 views • 10 slides