| 摘要 |
PROBLEM TO BE SOLVED: To reduce a memory capacity required for storing stack trace information without increasing load on a system, and to specify the process and thread causing faults. SOLUTION: A stack trace sampling system has an execution part 30 for carrying out a process for each thread that is an execution unit, and a trace data storage part 33. The execution part 30 has: a stack trace sampling part 31 for sampling first stack trace information indicating a processing state just before switching the thread in execution, and second stack trace information indicating a processing state just after switching of another thread executed after the switching of the thread, respectively, when the thread being executed is switched to another thread, and for storing the sampled first and second stack trace information in the trace data storage part 33; and a trace data output part 32 for outputting the first and second stack trace information stored in the trace data storage part 33 to an external storage device. COPYRIGHT: (C)2010,JPO&INPIT |
