MULTIPROCESSORS SYSTEMS AND PROCESSES SCHEDULING METHODS THEREOF

摘要

Scheduling methods for a multi-core processor system including multiple processors are provided. First, a process to be executed is chosen from a ready queue and analyzed to obtain a power consumption value of the process to be executed. Next, an idle processor is chosen from the processors and a total power consumption value of system through which the process to be executed is being executed in the idle processor is estimated to obtain a first prediction result based on the obtained power consumption value. It is then determined whether to execute the process to be executed in the idle processor according to the first predicted value and a predetermined upper limit value. In some embodiments, the scheduling method may further provide preemption scheduling such that the process with high priority can be preferentially executed and process can flexible switch among different processor core clusters.

主权项

1. A scheduling method for a multi-core processor system including a plurality of processors, comprising:
choosing a process to be executed from a ready queue; analyzing the process to be executed to obtain a power consumption value of the process to be executed; choosing an idle processor from the plurality of processors and estimating a total power consumption value of system through which the process to be executed is being executed in the idle processor to obtain a first prediction result based on the obtained power consumption value of the process to be executed; and determining whether to execute the process to be executed in the idle processor according to the first prediction result and a predetermined upper limit value, wherein the process to be executed is determined to be executed in the idle processor when the first prediction result is smaller than the predetermined upper limit value.