METHOD FOR MANAGING QUEUE RESOURCES BETWEEN CENTRAL PROCESSING UNITS

摘要

PURPOSE: A method for managing queue resources between central processing units is provided to shorten an execution processing speed and to efficiently manage a memory by removing an overhead due to an unnecessary processing when two central processing units are simultaneously operated. CONSTITUTION: A shared memory is provided with a queue resource management table(40), a domain(20) storing the address difference between two CPU's and a domain(30) indicating a place the queue resource management table(40) is located at. The queue resource management table(40) has a "head" value storage domain indicating a starting point of pre-queue resources, a "tail" value storage domain indicating an ending point of the pre-queue resources, a "CPU A count" value storage domain counted up every time queue resources are allocated and a "CPU B count" value storage domain counted up every time queue resources are restored. The "head" value is updated by the CPU A and the "tail" value is updated by the CPU B.