| 摘要 |
PURPOSE:To average a load and to reduce delay in operation by shortening the detection processing period of the internal timer processing method of a computer system to <=1sec, reducing the number of devices to be checked, and omitting error detection processing at a changing point of seconds. CONSTITUTION:When a processing routine is entered, how many times processing is performed from a changing point of seconds is discriminated on the basis of its frequency data (i); when (i) is 10, then error detection processing is omitted, and when (i) is not 10, then a device number devn is set to (i). When (i) is larger than the number of devices, the error detection is omitted, and when smaller, the decision on whether an error is present to a corresponding device or not is made; when the error is detected, the error processing is performed, and when not, a numeral 9 is added to the devn to obtain a new devn. The error detection processing is started ten times in every second and not carried out at changing points of seconds. The load on the device error detection processing upon a CPU is averaged and other operation delay is reduced. |
