MEASURING SYSTEM OF ACTIVITY RATIO OF INFORMATION PROCESSING DEVICE

PURPOSE:To measure the activity ratio of an information processing device with high accuracy by allowing a counter means to count a time when the information processing device is transited in the standby state and giving an interruption to the processing unit when the value reaches a predetermined time. CONSTITUTION:A processor 1 discriminates the priority of interruption signals 51, 52, 53 and 55 and executes the processing program prepared in advance to an interruption with the highest priority. After the end of execution, the state of signal lines 51-55 is checked and when the interruption is noticed, the processing program to the interruption with the higher priority is executed. When the interruption to the processing program to the higher priority during the execution is noticed and when the mode is the interruption permissible mode, the processing program with high priority is executed. When the processing of higher priority is finished, the execution of the processing program intermitted is restarted.