I got this advice
3.29% of GC time (i.e 180 ms) is caused by 'Metadata GC Threshold'. This GC is triggered when metaspace got filled up and JVM wants to create new objects in this space..
If this GC repeatedly happens, increase the metaspace size in your application with the command line option '-XX:MaxMetaspaceSize'.
I think it's a bit wrong XX:MaxMetaspaceSize is not limited by default. I have 18446744073709547520 as default. I think it should advice to increase -XX:MetaspaceSize.
Thank you for that awesome and easy to use tool!