Patent ID: 7340742

Claim:
A priority execution control method in an information processing system, comprising the steps of: storing a processing request in either of a priority queue and a normal queue in accordance with processing priority and a generation amount of the processing request per unit time, wherein the generation amount of the processing request per unit time is a ratio between a generation amount of previously priority processing request and that of previously normal processing request per unit time; extracting and processing a processing request, stored in the priority queue, by a priority processor which only processes a processing request stored in the priority queue; and extracting and processing a processing request, stored in the normal queue, by a normal processor which only processes a processing request stored in the normal queue, wherein the priority processor and the normal processor include a priority processing thread and a normal processing thread which operate parallel to each other on a computer, and the method further comprising setting thread priority of the priority processing thread equal; to thread priority of the normal processing thread prior to storing the processing request.