Power performance management method and electronic device

A performance management method applied to an electronic device with a system processor, comprising:

• sensing a temperature of the electronic device;
• determining whether the temperature is greater than a first temperature setting value;
• when the temperature is not greater than the first temperature setting value, initiating a frequency increasing procedure;
• when the temperature is greater than the first temperature setting value, determining whether the temperature is greater than a second temperature setting value, wherein the second temperature setting value is greater than the first temperature setting value;
• when the temperature is greater than the first temperature setting value and is not greater than the second temperature setting value, initiating a first frequency reducing procedure;
• and
• when the temperature is greater than the second temperature setting value, initiating a second frequency reducing procedure or turning off the system processor;
• wherein the frequency increasing procedure further comprises:
• determining whether an operating frequency of the system processor is a maximum value;
• and when the operating frequency is not the maximum value, increasing the operating frequency of the system processor by a frequency amount according to a first time interval;
• and
• wherein when the first frequency reducing procedure is to be continuously initiated more than two times, there is a second time interval between two adjacent moments at which the first frequency reducing procedure is initiated, wherein the second time interval is less than the first time interval.