priority scheduling

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(operating system)

priority scheduling - Processes scheduling in which the scheduler selects tasks to run based on their priority as opposed to, say, a simple round-robin.

Priorities may be static or dynamic. Static priorities are assigned at the time of creation, while dynamic priorities are based on the processes' behaviour while in the system. For example, the scheduler may favour I/O-intensive tasks so that expensive requests can be issued as early as possible.

A danger of priority scheduling is starvation, in which processes with lower priorities are not given the opportunity to run. In order to avoid starvation, in preemptive scheduling, the priority of a process is gradually reduced while it is running. Eventually, the priority of the running process will no longer be the highest, and the next process will start running. This method is called aging.

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No references found			Honors Institute students receive scholarship assistance, personalized advising and priority scheduling as well as the benefits of smaller classes, a challenging curriculum and a dedicated center for studying and meeting. Florida's Seminole Community College's Oviedo Campus recently ... by Community College Week In addition to a $4 co-pay on qualifying generic drugs, members of Pathmark's recently announced Pharmacy Advantage program, for example, are eligible for priority scheduling for flu shots and immunization programs, as well as free bone density, diabetes and blood pressure screenings. Good medicine: supermarket pharmacies can attract loyal customers by ... by Zimmermann, Kim Ann / Grocery Headquarters The meeting was given priority scheduling even though Strachan was gearing up for Sunday's final Old Firm game of the season. Football: STRACHAN'S SUMMIT TO KEEP HARTSON; RECORD EXCLUSIVE ... by Daily Record (Glasgow, Scotland)			prion Prion disease prion diseases Prioniodidae Prioniodinidae prionodont Prior prior distribution prior probabilities Prior, Matthew Prior, William Matthew prior-art search Priorato priorite Priority priority indicator priority inheritance priority interrupt priority inversion Priority of Satisfaction of Claims priority phase priority polling priority processing priority queue priority queueing priority scheduling priority-arbitration circuit Priorov, Nikolai Priorov, Nikolai Nikolaevich priory Priozernyi Priozersk Prip, John Pripet Pripet Marshes Pripet River Pripev Pripiat Pripisnye Krestiane Pripyat Prirechnyi Priroda Prisca Priscian Priscilla Priscillian Priscillianism priscol prise Priselkov, Mikhail Priselkov, Mikhail Dmitrievich			priority phase Priority Placement Program Priority Planning Advisory Committee Priority Planning Grid Risk Evaluation Priority Planning List priority polling Priority Poverty Expenditure Priority Precedence priority processing priority processing Priority Quality Level Priority queue Priority queue Priority Queue Status Register Priority Queue Weighted Fair Queuing priority queueing Priority queues Priority queuing Priority queuing Priority Queuing Class Based Weighted Fair Queuing Priority R&D Objectives for UN Operations Support Priority rating given to PWs Priority Reconnaissance Exploitation List Priority Records Priority Request To Talk Priority Review Voucher Priority Round Robin priority scheduling Priority Schools Funding Program Priority Seating Planning Guide Priority Selection Table Priority Selection Table - Extension Priority Setting and Resource Allocation Priority Solidarity Fund Priority Standardization Effort Priority Substances Assessment Program Priority Substances List Priority Survey priority system for mission requests for tactical reconnaissance Priority Target Priority traffic Priority Vehicle List Priority Veterinary Management Consultants Priority Water Problem List Priority Water Resources Caution Area Priority with Reserved Channel and Queue Priority Worldwide Services priority-arbitration circuit Priority-Based Assessment of Food Additives Priority-based Control Engineering Priority-Oriented Demand Assignment Priority-Weighted Fair Queuing

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