两个方法:preemptive(real time sys) and non preemptive(free of race conditions in kernel mode) Peterson's Solution: load/store are atomic(cannot be interrupted) two process share two variables: int turn; boolean flag[2]; intturn =0; boolean flag[2] = {false};while(true){ flag[i]=tru...
2. The Critical-Section Problem 3. Peterson's Solution 4. Synchronization Hardware 5.Semaphores 6. Classic Problems of Sychronization 7. Monitors Back Ground The processes are cooperating with each other directly or indirectly. Independent process cannot affect or be affected by the execution of an...
Module 6: Process Synchronization 6.2 Silberschatz, Galvin and Gagne ©2009 Operating System Concepts with Java – 8 th Edition Module 6: Process Synchronization Background The Critical-Section Problem Peterson’s Solution Synchronization Hardware ...
Chapter 6: Process Synchronization Chapter 6: Process Synchronization 6.2 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Feb 8, 2005 Module 6: Process Synchronization Module 6: Process Synchronization Background The Critical-Section Problem Peterson’s Solution Synchron...
operatingsystem操作系统-ch06-processsynchronization-63 6.2 ContentOverview BackgroundTheCritical-SectionProblemPeterson’sSolutionSynchronizationHardwareSemaphoresClassicProblemsofSynchronizationMonitorsSynchronizationExamplesAtomicTransactions 6.3 6.1Background ConcurrentaccesstoshareddatamayresultindatainconsistencyMaintaining...
Collective decision-making is important for coordination and synchronization of the activities among group-living animals and the mechanisms guiding such procedure involve a great variety of characteristics of behavior and motivation. This study provides some evidence investigating collective movement initiation...
Chapter 5: Process Synchronization Background The Critical-Section Problem Peterson’s Solution Synchronization Hardware Mutex Locks Semaphores Classic Problems of Synchronization Monitors Synchronization Examples Alternative Approaches Objectives To present the concept of process synchronization. To introduce the cr...
Turn-Taking: Alternation with Interest (Peterson’s Solution) Idea -- process declares its interest before it tries for critical region Other processes that are interested block if it’s not their turn and if someone else who is interested is in critical section #define FALSE 0 #define TRUE ...
C M Peterson,K L Sorensen,R V V Vidal.Inter-process synchronization in steel production. International Journal of Production Research . 1992Peterson C M,Sorensen K L,Vidal R V V.Inter -process synchronization in steel production. International Journal of Production Research . 1992...
Mutex Locks As the synchronization hardware solution is not easy to implement for everyone, a strict software approach called Mutex Locks was introduced. In this approach, in the entry section of code, a LOCK is acquired over the critical resources modified and used inside the critical section, ...