Scatter Data Does Not Match Packet Capture Data

Problem description

Customer feedback shows that DNS Time in the scattered data is 10.018s, which does not match the time in the packet capture.

Analysis ideas

Check the proportion and characteristics of this phenomenon

View Log from the backend
3.Instant Testing recurrence

Problem analysis

At present, we have only found such a phenomenon, which means it is sporadic. This phenomenon occurs on chrome90.

View data from the backend Log and packet capture
(1) The backend checks the start time of this task at 11:08

(2) The starting time of packet capture is 11:18

(3) The duration of checking DNS on the backend is about 10 seconds

3. Instant Testing reappeared and DNS Time was found to be normal.

Problem summary

The cause of this kind of problem should be incomplete packet capture caused by Network packet loss, but the actual data is accurate and there is no problem with the client due to accidental phenomena.

Scatter Data Does Not Match Packet Capture Data

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Problem description

Analysis ideas

Problem analysis

Problem summary