INFORMATION PROCESSOR, AND INFORMATION PROCESSING METHOD AND PROGRAM

PROBLEM TO BE SOLVED: To enable each device of a system bus to much more validly utilize the system bus. SOLUTION: An initial away value setting part supplies an initial away value to an initiator in a step S21. An address set processing part supplies an access destination address for setting the latency value of each target corresponding to the initiator in a step S22. A measurement processing performance control part makes the initiator start the performance of measurement processing to the i-th target in a step S24, and monitors a completion flag in a step S25, and when a completion flag has been asserted, increments variables i in a step S26, and when any unprocessed target exists, returns processing to the step S24 to repeat the following processing, and when measurement processing has been performed to all the targets, ends the processing. This invention may be applied to, for example, a PCI bus system. COPYRIGHT: (C)2005,JPO&NCIPI