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Linux Scheduler - Columbia University

Linux SchedulerLinux SchedulerDescending toReality..PhilosophiesProcessorScheduli ngProcessor AffinityBasic SchedulingAlgorithmThe Run QueueThe Highest PriorityProcessCalculatingTimeslicesTypi cal QuantaDynamic PriorityInteractive ProcessesUsing QuantaAvoiding IndefiniteOvertakingThe Priority ArraysSwapping ArraysWhy Two Arrays?The TraditionalAlgorithmLinux is MoreEfficientLocking RunqueuesReal-TimeSchedulingSleeping and WakingTimers1 / 40 Descending to Reality.. Linux SchedulerDescending toReality..PhilosophiesProcessorScheduli ngProcessor AffinityBasic SchedulingAlgorithmThe Run QueueThe Highest PriorityProcessCalculatingTimeslicesTypi cal QuantaDynamic PriorityInteractive ProcessesUsing QuantaAvoiding IndefiniteOvertakingThe Priority ArraysSwapping ArraysWhy Two Arrays?The TraditionalAlgorithmLinux is MoreEfficientLocking RunqueuesReal-TimeSchedulingSleeping and WakingTimers2 / 40nThe Linux Scheduler tries to be very efficientnTo do that, it uses some complex datastructuresnSome of what it does actually contradicts theschemes we ve been discussing.

Linux Scheduler Linux Scheduler Descending to Reality... Philosophies Processor Scheduling Processor Affinity Basic Scheduling Algorithm The …

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Interrupts)in)Linux)

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The)Kernel)as)aMulWthreaded)Server) I/O) device) Timer) Process) Process) Process) Kernel) Datastructures) In)common)address)space) Syscall) Syscall) Interrupt

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Linux&Memory&Management - Columbia University

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