PROGRAM OPERATION COMPARISON DEVICE, METHOD, AND PROGRAM

PROBLEM TO BE SOLVED: To automatically collect information necessary for specifying the causes of an error, degradation, and the like which becomes obvious depending upon a program executing speed and a processing procedure. SOLUTION: This program operation comparison device changes an execution file of such a program so that the program itself can output execution history of a function, acquires the execution history of the executed program by a program execution history collecting means to store the execution history of the program in an execution history storage means, divides the execution history with a local part of a function call sequence as a function block on the basis of the depth of a function call stack of the executed program and an appearance pattern to store the function block in a function block storage means, compares the function block of the function block storage means with the function call sequence of the program under execution acquired by the program execution history collecting means, detects different places and stores them in a comparison result storage means. COPYRIGHT: (C)2010,JPO&INPIT