Understanding Linux scheduler

M. Tim Jones explains Linux 2.6 task scheduler and its most important attributes.

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FTA “…The Linux kernel continues to evolve, incorporating new technologies and gaining in reliability, scalability, and performance. One of the most important features of the 2.6 kernel is a scheduler implemented by Ingo Molnar. This scheduler is dynamic, supports load-balancing, and operates in constant time — O(1). This article explores these attributes of the Linux 2.6 scheduler, and more…

An important goal of a scheduler is to allocate CPU time slices efficiently while providing a responsive user experience. The scheduler can also be faced with such conflicting goals as minimizing response times for critical real-time tasks while maximizing overall CPU utilization. Let’s see how the Linux 2.6 scheduler accomplishes these goals, compared to earlier schedulers….

Read more at: IBM developerWorks Linux section.

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