Minimizing power consumption for fixed-frequency processing unit operation

A computer program product comprising a non-transitory computer readable storage medium having a computer readable program stored therein, wherein the computer readable program, when executed on a computing device, causes the computing device to:

• count a number of timeslots in a time window where throttling is engaged to a fixed-frequency processing unit;
• divide the number of timeslots where throttling is engaged by a total number of timeslots within the time window thereby producing a performance loss (PLOSS) value;
• determine whether the (PLOSS) value associated with a processing unit is greater than an allowed performance loss (APLOSS) value;
• and
• responsive to the PLOSS value being less than or equal to the APLOSS value, initiate a decrease in voltage supplied to the fixed-frequency processing unit.