System and method for controlling processor usage according to user input
A system and method for controlling processor usage according to user related tasks is provided. For periodic tasks, by increasing the period at which the task runs, the average processor usage can be reduced to meet a particular target which can ensure that user input is not affected by the periodic task. As such, the periodic task can be intelligently degraded and altered to compensate for such degradation in order to free up enough processor usage space so as to not adversely affect user input.
1. A method for controlling usage of a processor in a mobile device, comprising:
during operation of the processor, determining a periodic task performed by the processor, the periodic task being degradable and comprising a plurality of frames;
sensing a user input to a user interface of the mobile device being operated by the processor, while the processor is performing the periodic task, the user input corresponding to an interactive user related task to be performed by the processor in response to the user input; and
in response to the sensing of the user input:
determining a total usage of the processor including a value indicative of usage for performing the periodic task;
comparing the total usage to a predetermined threshold indicative of a maximum usage for the processor; and
if the total usage does not meet the threshold, degrading the periodic task by removing one or more of the plurality of frames and increasing a period of the periodic task, thereby reducing the total usage such that the threshold is met for an amount of time necessary to compensate for the interactive user related task, and restoring normal operation of the periodic task thereafter.
2. A mobile device comprising a non-transitory memory for storing computer executable instructions, at least one input mechanism, and a processor for executing the instructions,
the instructions for:
during operation of the processor, determining a periodic task performed by the processor, the periodic task being degradable and comprising a plurality of frames;
sensing a user input to a user interface of the mobile device being operated by the processor, while the processor is performing the periodic task, the user input corresponding to an interactive user related task to be performed by the processor in response to the user input; and
in response to the sensing of the user input:
determining a total usage of the processor including a value indicative of usage for performing the periodic task;
comparing the total usage to a predetermined threshold indicative of a maximum usage for the processor; and
if the total usage does not meet the threshold, degrading the periodic task by removing one or more of the plurality of frames and increasing a period of the periodic task, thereby reducing the total usage such that the threshold is met for an amount of time necessary to compensate for the interactive user related task, and restoring normal operation of the periodic task thereafter.
3. The method according to claim 1 wherein removing the one or more of said plurality of frames comprises removing content from the periodic task.
4. The method according to claim 3 wherein the periodic task comprises video decoding, and the removing content comprises removing one or more frames from a video.
5. The method according to claim 1 , further comprising repeating the method for at least one additional user input handled by the processor.
6. The mobile device according to claim 2 wherein meeting the threshold comprises controlling usage of the processor to be at or below the threshold.
7. The method according to claim 1 wherein determining the total usage comprises adding the sum of individual processor usages for one or more fixed tasks to an estimate for the value based on predetermined information pertaining to the selected task.
8. The method according to claim 7 wherein determining the total usage excludes processor usage for performing the interactive user related task.
9. The method according to claim 1 comprising determining another periodic task and the degrading comprises performing a first degradation of the periodic task and a second degradation of the other periodic task, wherein the first and second degradations together reduce the total usage such that the threshold is met.
10. The method according to claim 1 wherein meeting the threshold comprises controlling usage of the processor to be at or below the threshold.
11. A non-transitory computer readable storage medium storing computer executable instructions, that when executed by a mobile device, cause the mobile device to perform operations comprising:
during operation of a processor of the mobile device, determining a periodic task performed by the processor, the periodic task being degradable and comprising a plurality of frames;
sensing a user input to a user interface of the mobile device being operated by the processor, while the processor is performing the periodic task, the user input corresponding to an interactive user related task to be performed by the processor in response to the user input; and
in response to the sensing of the user input:
determining a total usage of the processor including a value indicative of usage for performing the periodic task;
comparing the total usage to a predetermined threshold indicative of a maximum usage for the processor; and
if the total usage does not meet the threshold, degrading the periodic task by removing one or more of the plurality of frames and increasing a period of the periodic task, thereby reducing the total usage such that the threshold is met for an amount of time necessary to compensate for the interactive user related task, and restoring normal operation of the periodic task thereafter.
12. The mobile device according to claim 2 wherein determining the total usage comprises adding the sum of individual processor usages for one or more fixed tasks to an estimate for the value based on predetermined information pertaining to the selected task.
13. The mobile device according to claim 12 wherein determining the total usage excludes processor usage for performing the interactive user related task.
14. The mobile device according to claim 2 wherein removing the one or more of said plurality of frames comprises removing content from the periodic task.
15. The mobile device according to claim 14 wherein the periodic task comprises video decoding, and the removing content comprises removing one or more frames from a video.
16. The mobile device according to claim 2 comprising determining another periodic task and the degrading comprises performing a first degradation of the periodic task and a second degradation of the other periodic task, wherein the first and second degradations together reduce the total usage such that the threshold is met.