Abstract: Methods and apparatus for power-based scheduling of tasks among processors are disclosed. A method may include executing processor executable code on one or more of the processors to prompt a plurality of executable tasks for scheduling among the processors. Processor-demand information is obtained about the plurality of executable tasks in addition to capacity information for each of the processors. Processor power information for each of the processors is also obtained, and the plurality of executable tasks are scheduled on the lowest power processors where processor-demands of the tasks are satisfied.

Abstract: An example apparatus and method are disclosed for scheduling a plurality of threads for execution on a cluster of a plurality of clusters. The method includes determining that a first thread is dependent on a second thread. The first and second threads process a workload for a common frame. The method also includes selecting a cluster of a plurality of clusters. The method further includes scheduling the first and second threads for execution on the selected cluster.

Abstract: A computing device comprising a user interface screen with a user interface associated with a plurality of user interface tasks. The computing device comprises a plurality of processing units operating at a processing unit frequency. The computing device further comprises an operating system comprising a dependent task identifier and a CPU frequency scaling governor. The dependent task identifier identifies one or more user interface tasks which are dependent on at least one other user interface task and provides to the CPU frequency scaling governor an aggregate frequency for the one or more user interface tasks. The CPU frequency scaling governor sets the plurality of processing units to the aggregate frequency.

Abstract: Systems and methods for temporarily adjusting the frequency of processors are disclosed. A computing device may include a plurality of processors that are each configured to execute one or more tasks at a corresponding one of a plurality of frequencies. A scheduling component migrates tasks between the processors to balance a load that is processed by the plurality of processors. A governor component includes a frequency adjustment component to control a frequency of each of the processors and a frequency synchronization component that detects when the scheduling component is migrating one of the tasks from a source processor to a destination processor. The synchronization component increases, based upon a frequency of the source processor, a frequency of the destination processor.

Abstract: Methods and apparatus for power-based scheduling of tasks among processors are disclosed. A method may include executing processor executable code on one or more of the processors to prompt a plurality of executable tasks for scheduling among the processors. Processor-demand information is obtained about the plurality of executable tasks in addition to capacity information for each of the processors. Processor power information for each of the processors is also obtained, and the plurality of executable tasks are scheduled on the lowest power processors where processor-demands of the tasks are satisfied.

Abstract: A sponge process, for example within a driver in a guest operating system, is associated in a virtual computer system with each virtual processor in one or more virtual machines. When timer interrupts become backlogged, for example because a virtual machine is temporarily descheduled to allow other virtual machines to run, and upon occurrence of a trigger event, a conventional interrupt is disengaged and catch-up interrupts are instead directed into an appropriate one of the sponge processes. The backlogged timer interrupts are thus delivered without unfairly attributing descheduled time to whatever processes happened to be running while the catch-up interrupts are delivered, and without violating typical guest operating system timing assumptions.