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12. 发明申请

US20090019449A1 Load balancing method and apparatus in symmetric multi-processor system 有权
标题翻译：对称多处理器系统中的负载平衡方法和装置
公开(公告)号：US20090019449A1
公开(公告)日：2009-01-15
申请号：US11976759
申请日：2007-10-26
申请人： Gyu-sang Choi , Chae-seok Im , Si-hwa Lee
发明人： Gyu-sang Choi , Chae-seok Im , Si-hwa Lee
IPC分类号： G06F9/46
CPC分类号： G06F9/5088
摘要： Provided are a load balancing method and a load balancing apparatus in a symmetric multi-processor system. The load balancing method includes selecting at least two processors based on a load between a plurality of processors, from among the plurality of processors, migrating a predetermined task stored in a run queue of a first processor to a migration queue of a second processor, and migrating the predetermined task stored in the migration queue of the second processor to a run queue of the second processor. Accordingly, a run queue of a processor is not blocked while migrating a task, an immediate response of the run queue is possible, and a waiting time of a scheduler is reduced. Consequently, the scheduler can speedily perform context switching, and thus performance of the entire operating system is improved.
摘要翻译：提供了一种对称多处理器系统中的负载平衡方法和负载平衡装置。所述负载平衡方法包括基于所述多个处理器之间的负载选择至少两个处理器，所述多个处理器之中将存储在第一处理器的运行队列中的预定任务迁移到第二处理器的迁移队列，以及将存储在第二处理器的迁移队列中的预定任务迁移到第二处理器的运行队列。因此，处理器的运行队列在迁移任务时不被阻塞，所以运行队列的即时响应是可能的，并且减少了调度器的等待时间。因此，调度器可以快速执行上下文切换，从而提高整个操作系统的性能。

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