METHOD AND DEVICES FOR CONTROLLING OPERATIONS OF A CENTRAL PROCESSING UNIT

摘要

Control circuitry controls the operations of a central processing unit, CPU, which is associated with a nominal clock frequency. The CPU is further coupled to an I/O range and configured to deliver input to an application. The control circuitry controls the CPU to poll the I/O range for input to the application. The control circuitry also monitors whether or not each poll results in input to the application and adjusts a clock frequency at which the CPU operates to a clock frequency lower than the nominal clock frequency if a pre-defined number of polls resulting in no input is detected. Methods and a central computer server of an automated exchange system are also provided.

主权项

1. A method for use in a system including control circuitry for controlling operations of a processor, wherein the processor is associated with an input/output (I/O) range and is configured to deliver input to an application, the method comprising:
operating the processor at a first clock frequency lower than a nominal clock frequency of the processor; determining that the processor has performed or is about to perform one or more polls of the I/O range; monitoring to determine whether each of the one or more polls results in detection of input data for the application at the I/O range; and in response to determining that a given number of the polls results in detection of input data, adjusting a clock frequency at which the processor operates to a second clock frequency that is greater than the first clock frequency.