Delaying execution in a processor to increase power savings

摘要

Embodiments relate to storing data in memory. An aspect includes applying a power savings technique to at least a subset of a processor. Pending work items scheduled to be executed by the processor are monitored. The pending work items are grouped based on the power savings technique. The grouping includes delaying a scheduled execution time of at least one of the pending work items to increase an overall number of clock cycles that the power savings technique is applied to the processor. It is determined that an execution criteria has been met. The pending work items are executed based on the execution criteria being met and the grouping.

主权项

1. A computer implemented method comprising:
applying a power savings technique to at least a subset of a processor; monitoring pending work items scheduled to be executed by the processor; grouping the pending work items based on the power savings technique, the grouping including delaying a scheduled execution time of at least one of the pending work items to increase an overall number of clock cycles that the power savings technique is applied to the processor; determining that an execution criteria has been met; and executing the pending work items based on the execution criteria being met and the grouping, wherein: the power savings technique is power gating, the pending work items are off-chip memory requests located in a queue, the executing includes a burst of contents of the queue to an off-chip memory, the off-chip memory connected to the memory controller via a memory link, the power savings technique is applied to at least one of the processor, a memory located on the processor, the memory link, and the off-chip memory, and the execution criteria includes at least one of:
a number of pending working items in the queue exceeds a threshold number of pending work items anda number of cycles since a last burst is longer than a threshold amount of time.