Method and system for executing multiple tasks at adaptively controlled resource utilization rates to achieve equal QoS levels

摘要

The QoS levels of multiple tasks are maintained at equal levels by executing items of the tasks stored in a queue during a given time interval at respectively adaptively controlled CPU utilization rates. The QoS levels of the executed items are detected and evaluated. The CPU utilization rates are updated with respective differences between a target value and the evaluated QoS levels. A difference is detected between each of the evaluated QoS levels obtained during a previous time interval and each of the evaluated QoS levels obtained during a current time interval and the detected difference is compared to a predetermined value. During a subsequent time interval, the previously stored items of the queue are replaced with new items of the tasks if the difference is smaller than the predetermined value and the previously stored items are executed again with the updated CPU utilization rates if the difference is greater than predetermined value.