PERFORMANCE MEASUREMENT DEVICE, STORAGE MEDIUM RECORDING PERFORMANCE MEASUREMENT PROGRAM AND PERFORMANCE MEASUREMENT METHOD

摘要

PROBLEM TO BE SOLVED: To efficiently sample performance data of a program including a running program with interruption prohibited. SOLUTION: A register window 1 is the one for performing switch of a register group by calling and recovering a program. When a performance measurement start instruction is inputted, a performance measurement start processing means 2 changes environments of the register window 1 so that a trap is generated whenever calling of the program and recovery occur. A performance measurement information sampling means 3 executes a measurement object program 4 by the environments of the register window 1 which the performance measurement start processing means 2 sets, and samples performance measurement information 5 with generation of a trap as an opportunity. A performance measurement completion processing means 6 returns the environments of the register window 1 to the one before performance measurement start when execution of the program by the performance measurement information sampling means 3 is completed.