Technical Tip: How to collect the logs needed for investigating high CPU usage problem

Login to Fortiweb SSH by using the default 'admin' account and collect the following when the CPU usage is on the higher side.

get system performance
diagnose hardware cpu list

diagnose debug crashlog show

diagnose debug coredumplog show

Let the commands listed below run for 2 minutes.

diagnose system perf
diagnose system top <----- Press 'c' on the keyboard.

When the CPU usage is high, take a screenshot of the 'Throughput - Total HTTP throughput' and 'Policy Sessions' widgets as seen below.

Along the above files, attach the configuration backup and the system debug file.  To download the system debug file, go to System -> Maintenance -> Debug -> Debug Log and download the debug log file.

Also, download the Event logs from Log & Report -> Log Access -> Download.