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    • 97. 发明授权
    • Task scheduling method and apparatus
    • 任务调度方法和装置
    • US09372729B2
    • 2016-06-21
    • US13833509
    • 2013-03-15
    • Mihai-Daniel Fecioru
    • Mihai-Daniel Fecioru
    • G06F9/46G06F9/48
    • G06F9/4881G06F9/4887
    • An apparatus schedules execution of a plurality of tasks by a processor. Each task has an associated periodicity and an associated priority based upon the associated periodicity. The processor executes each of the plurality of tasks periodically according to the associated periodicity of the task. A scheduler, at each of a series of scheduling time points updates the priorities of the plurality of tasks and schedules the tasks that need to be executed in accordance with their priorities. The scheduler identifies an unexecuted task which, at a preceding scheduling time point, was scheduled for execution but which, since that preceding scheduling time point, has not been executed. The scheduler sets the priority of the unexecuted task as greater than the priority of other tasks that have the same periodicity as the unexecuted task and that are not themselves unexecuted tasks.
    • 一种装置由处理器调度多个任务的执行。 每个任务具有相关联的周期性和相关联的优先权,基于相关的周期性。 处理器根据相关联的任务周期周期性地执行多个任务中的每一个。 调度器在一系列调度时间点中的每一个时刻更新多个任务的优先级,并根据其优先级调度需要执行的任务。 调度器识别未执行的任务,其在先前的调度时间点被调度为执行,但是由于该前一调度时间点尚未被执行。 调度程序将未执行任务的优先级设置为大于具有与未执行任务相同周期性的其他任务的优先级,并且本身不是未执行的任务。
    • 98. 发明授权
    • System and method for conditional task switching during ordering scope transitions
    • 在订购范围转换期间进行条件任务切换的系统和方法
    • US09372723B2
    • 2016-06-21
    • US14231784
    • 2014-04-01
    • Zheng XuTommi M. JokinenWilliam C. Moyer
    • Zheng XuTommi M. JokinenWilliam C. Moyer
    • G06F9/48
    • G06F9/4843G06F9/461G06F9/48
    • A data processing system includes a processor core and ordering scope manager circuitry. The processor core sends an indication of a first ordering scope identifier for a current ordering scope a task currently being executed by the processor core and a second ordering scope identifier for a next-in-order ordering scope of the task. The ordering scope manager receives the indication the first and second ordering scope identifiers from processor core, and, provides a no task switch indicator to the processor core in response to determining that the first task is a first-in-transition-order task for the first ordering scope identifier and that processor core is authorized to execute the next-in-order ordering scope. The processor core transitions from executing in the current ordering scope to executing in the next-in-order ordering scope without performing task switch in response to the no task switch indicator being provided.
    • 数据处理系统包括处理器核心和订购范围管理器电路。 处理器核心向当前订购范围发送当前由处理器核心执行的任务的第一订购范围标识符和用于任务的下一个订购范围的第二订购范围标识符的指示。 订购范围管理器从处理器核心接收第一和第二订购范围标识符的指示,并且响应于确定第一任务是第一个转换顺序任务,向处理器核心提供无任务切换指示符 第一个订购范围标识符,该处理器核心被授权执行下一个订购范围。 处理器核心从当前订购范围内的执行转变为按顺序排序范围执行,而不响应于提供无任务切换指示器而执行任务切换。