Processor power-saving during wait events
Embodiments are directed to a method of optimizing power consumption in an electrical device. The method includes receiving, by a processor, instructions to enter a wait state, and identifying, by the processor, a parameter associated with the instructions to enter a wait state. The method continues with initiating, by the processor, instructions to enter a low-power mode based on the parameter, initiating, by the processor, instructions to exit a low-power mode based on the parameter, and providing, via a user interface, a user with notice of a current state of the processor. The parameter includes runtime information, instructional information, and scheduled operations.
1. A method of optimizing power consumption in an electrical device, the method comprising:
receiving, by a processor, instructions to enter a wait state, wherein the instructions include a sleep decision index comprising a sleep operation code, a parameter and a state;
monitoring, by the processor, the parameter specified by the sleep decision index;
initiating, by the processor, instructions to enter a low-power mode based on a determination that the parameter has met a value specified by the sleep decision index, wherein the value is determined based on a history of previous events or states and wherein the determination is based on applying an algorithm specified by the sleep operation code to the parameter;
initiating, by the processor, instructions to exit the low-power mode based on the parameter; and
providing, via a user interface, a user with notice of a current state.
2. The method of claim 1 , wherein the parameter includes dynamically changing thresholds based on a history of previous events or states.
3. The method of claim 1 , wherein the instructions to enter and exit a low-power mode are sent to predetermined circuits in the electrical device.
4. The method of claim 1 , wherein the processor contains a predetermined set of instructions to enter and exit a low-power mode based on the parameter identified.
5. The method of claim 1 , wherein the parameter is accessed from a remote location.
6. The method of claim 1 , wherein the instructions to enter and exit a low-power mode include delaying, for a predetermined time, a start of an event.
7. The method of claim 1 , wherein the instructions to enter a low-power mode include, after a predetermined time period, ordering a hardware device to transition from a low-power mode to routine operations.
8. The method of claim 1 , wherein the parameter can be passed as operands of the instructions.
9. The method of claim 1 , wherein the instructions to enter and exit a low-power mode include executing a delaying action for a predetermined amount of time before entering or exiting a low-power mode.
10. The method of claim 1 , wherein the algorithm specifies entering the low-power mode based on a determination that the parameter, which contains an exponential moving average of wait event times for an instruction, exceeds a threshold.
11. The method of claim 10 , wherein the algorithm further includes a time delay for exiting the low-power mode.
12. A system, comprising:
a memory having computer readable instructions; and
a processor for executing the computer readable instructions, the computer readable instructions including:
receiving instructions to enter a wait state, wherein the instructions include a sleep decision index comprising a sleep operation code, a parameter and a state;
monitoring a parameter specified by the sleep decision index to enter a wait state;
initiating instructions to enter a low-power mode based on a determination that the parameter has met a value specified by the sleep decision index, wherein the value is determined based on a history of previous events or states and wherein the determination is based on applying an algorithm specified by the sleep operation code to the parameter;
initiating instructions to exit a low-power mode based on the parameter; and
providing, via a user interface, a user with notice of a current state.
13. The system of claim 12 , wherein the instructions to enter and exit a low-power mode are sent to predetermined circuits in the electrical device.
14. The system of claim 12 , wherein the processor contains a predetermined set of instructions to enter and exit a low-power mode based on the parameter identified.
15. The system of claim 12 , wherein the instructions to enter and exit a low-power mode include delaying, for a predetermined time, a start of an event.
16. The system of claim 12 , wherein the instructions to enter a low-power mode include executing a delaying action for a predetermined amount of time before entering a low-power mode.
17. A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computer processor to cause the computer processor to perform a method comprising:
receiving, by a processor, instructions to enter a wait state, wherein the instructions include a sleep decision index comprising a sleep operation code, a parameter and a state;
monitoring, by the processor, a parameter specified by the sleep decision index to enter a wait state;
initiating instructions to enter a low-power mode based on a determination that the parameter has met a value specified by the sleep decision index, wherein the value is determined based on a history of previous events or states and wherein the determination is based on applying an algorithm specified by the sleep operation code to the parameter;
initiating instructions to exit a low-power mode based on the parameter; and
providing, via a user interface, a user with notice of a current state.
18. The computer program product of claim 17 , wherein the instructions to enter and exit a low-power mode are sent to predetermined circuits in the electrical device.
19. The computer program product of claim 17 , wherein the processor contains a predetermined set of instructions to enter and exit a low-power mode based on the parameter identified.
20. The computer program product of claim 17 , wherein the instructions to enter and exit a low-power mode include delaying, for a predetermined time, a start of an event.