System Contention Scope

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In computer science, The System Contention Scope[1] is one of two thread-scheduling schemes used in operating systems. This scheme is used by the kernel to decide which kernel-level thread to schedule onto a CPU, wherein all threads (as opposed to only user-level threads, as in the Process Contention Scope scheme) in the system compete for the CPU. Operating systems that use only the one-to-one model, such as Windows, Linux, and Solaris, schedule threads using only System Contention Scope.


  1. ^ Silberschatz, Abraham, and Peter B. Galvin. "Thread Scheduling." Operating System Concepts. 8th ed. Hoboken, NJ: J. Wiley & Sons, 2005. 199. Print.