To reduce influence to a system to be measured with source information collection, to improve convenience of a source information collecting device and to accurately and simply specify the performance penalty and the error of the system to be measured.
When various kinds of interruption including single step interruption and event overflow interruption occur, an interruption control part 3a outputs a trigger signal and an interruption signal. Thus, a selector and data collection part 5a collects source information to store it in a register 6, and a source information collecting program 2 starts traveling to read optional source information from the register 6. The program 2 sets the kind of source information of a collecting object and the effectiveness and ineffectiveness. The register 6 stores the generating source flag of an object event with source information corresponding to it.
KUMON KOICHI
HIRAI SATOSHI
SATO MITSURU
NARUSE AKIRA
