| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a virtual computer system for executing the acquisition of trace data for measuring I/O performance in an arbitrary timing. <P>SOLUTION: A guest OS 110 includes: a disk driver 111 for making a disk I/O processing request; a trace data recording unit 112 for recording the start time and end time of the trace of the disk driver 111; and a trace data acquisition instruction unit 113 for instructing the acquisition of trace data to the disk driver 111. A host OS 120 includes a virtual disk driver 122 and a trace data recording unit 123 for recording the start time and end time of the trace of the virtual disk driver 122 on a VM 121. When receiving the instruction of the trace data acquisition instruction unit 113, the disk driver 111 makes a disk I/O processing request, and the virtual disk driver 122 performs access to a disk 131, and acquires the trace data, respectively. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
