ANALYSIS METHOD OF REEMPTION DISABLING TIME FOR PREDICTION WORST CASE RESPONSE TIME OF REAL-TIME PROCESS, AND RECORD MEDIA RECODED PROGRAM FOR IMPLEMENT THEREOF

摘要

An analysis method of preemption disabling time for prediction worst case response time of a real-time process, and a record media recorded program for implement thereof are provided to reduce the overheads as many as possible by dynamically allocating a structure for the storage of preemption disabling time at a memory. A storage space for storing a preemption disabling time for each process is allocated to a memory dynamically(S1), and the disabling time when the preemption of a second process is disabled while performing a first process is measured(S4). The releasing time when the preemption of the second process is released while continuously performing the first process is measured(S7). The time difference between the measured released time and the disabling time is calculated as the preemption disabling time of the second process, and the calculated preemption time of the second process is designated as an index of a pointer array for the storage space of the allocated second process.