Even if the program is operating normally, the runtime performance might not be as expected. Apart from problems in the program, the cause might be the problems in components such as the Web server and database. If there are problems in the components, the check using the Trace based performance analysis (PRF) is more effective. If you use the Trace based performance analysis, you can analyze the processing time of each layer and the status of requests. Follow the flow of requests from the program in the Web Service client and check where the delay is occurring.

For details about the checking method using the Trace based performance analysis, see 39.4.3 Method of performance analysis based on Trace based performance analysis.

The following figure shows an example of the processing time in each functionality layer.

Figure 39-4 Example of the processing time in each functionality layer