Symptom

If the following tracing time lines are displayed and you cannot determine whether they are correct, see the following description.

Answer

The time line of each method indicates the start position and total duration of the method. On the tracing page, method lines are gray, and the time duration of each method is filled with green. The part filled with green indicates the total duration. In the preceding figure, the time lines of methods 1 and 2 partially overlap, and the last part of each time line is not green.

The time lines are correct. Usually, they should be drawn as shown in the following figure. However, in Application Performance Management (APM), the time line of each method indicates the start position and total duration of the method. Therefore, the time lines are drawn as shown in the preceding figure.