TRACE INFORMATION COLLECTION DEVICE, TRACE INFORMATION COLLECTION METHOD, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To collect information to be used for investigating the factor of stall occurrence in a plurality of programs whose processing operates in association with each other.SOLUTION: A trace information collection device includes: a collection part 10 for collecting the trace information of a plurality of programs; a first information storage part 20 including a plurality of buffers (22 to 24) capable of storing the trace information of a first program and management information 21 for storing information necessary for access to the buffer in which the current trace information is collected among those buffers; and a second information storage part 30 including a plurality of buffers (32 to 34) capable of storing the trace information of a second program and management information 31 for storing information necessary for access to the buffer in which the current trace information is collected among those buffers. When a stall is detected, a management part 40 simultaneously switches the collection destination of the trace information from the buffer in which the current trace information is collected to the buffer different from the buffer.