| 摘要 |
PROBLEM TO BE SOLVED: To analyze the operational status of a system, without using a part protected by encryption, for example, of data communicated between servers within the system. SOLUTION: A delimiter of processing in an upper-level server is identified from the exchange of packets between a lower-level server and the upper-level server. A part from an uplink packet relating to the delimiter of the processing to a downlink packet relating to the delimiter of the next processing is identified as a processing chunk. Further, a processing chunk of the upper-level server included between a reception time of a request message to the lower-level server and a reception time of a corresponding response message is identified. Then, a difference between the reception time of the first packet and the reception time of the last packet in the processing chunk of the upper-level server is used to calculate a processing time of the upper-level server for processing of the lower-level server executed during the processing chunk for the lower-level server. COPYRIGHT: (C)2010,JPO&INPIT
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