PROCESSOR NOISE MITIGATION USING DIFFERENTIAL CRITICAL PATH MONITORING
First Claim
1. A method for mitigating power supply noise in a processor, the method comprising the steps of:
- a calibration circuit executing a pre-specified workload on a processor, wherein the pre-specified workload drives substantially the same power supply load to each core of the processor;
the calibration circuit determining a first threshold to be used for comparison performed dynamically by a detection circuit;
the detection circuit dynamically monitoring system operation of the processor and indicating if the first threshold is violated; and
responsive to the indication, the detection circuit adjusting an operational parameter of the processor to avoid system failure of the processor.
1 Assignment
0 Petitions
Accused Products
Abstract
An approach for power supply noise mitigation on a processor is provided. In one aspect, the approach comprises a central computing unit operatively coupled to the processor to execute program operations. The approach further comprises a calibration circuit adapted to determine a first threshold on the processor to be used for comparison performed dynamically through the use of a detection circuit. A detection circuit adapted to dynamically monitor system operation of the processor and indicate if the first threshold is violated and a counting circuit adapted to prevent voltage from drooping if one or more voltage sensing measurements violates the first threshold are also provided.
-
Citations
20 Claims
-
1. A method for mitigating power supply noise in a processor, the method comprising the steps of:
-
a calibration circuit executing a pre-specified workload on a processor, wherein the pre-specified workload drives substantially the same power supply load to each core of the processor; the calibration circuit determining a first threshold to be used for comparison performed dynamically by a detection circuit; the detection circuit dynamically monitoring system operation of the processor and indicating if the first threshold is violated; and responsive to the indication, the detection circuit adjusting an operational parameter of the processor to avoid system failure of the processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An apparatus for mitigating power supply noise in a processor, the apparatus comprising:
-
a central computing unit for executing program operations, wherein the central computing unit is operatively coupled to the processor; a calibration circuit adapted to determine a first threshold on the processor to be used for comparison performed dynamically through the use of a detection circuit; a detection circuit adapted to dynamically monitor system operation of the processor and indicate if the first threshold is violated; and a counting circuit adapted to prevent voltage from drooping if one or more voltage sensing measurements violates the first threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification