Add a chart for "memory used after full gc"

[vlsi]

For GC that do a Full GC from time to time (e.g. -XX:+ParallelGC in OpenJDK), the key metric of "heap utilization" is "memory used after full gc".

It would be good if GCViewer could show exactly that chart so one could assess "heap utilization" and "memory leak condition" in a blink of an eye.

Current view is not that bad (it includes tons of information for extended analysis), however it is overcomplicated for day-to-day usage.

[chewiebug]

This sounds like a very interesting idea! Probably for cms and g1 collector, "memory used after concurrent collection" would be of similar interest. I am not very much for creating new views for single metrics, but I have to admit that there is really a lot of information shown in the chart (you know, that you can turn off, what you don't need to see in the "view" menu?). Best regards, Jörg

[vlsi]

you know, that you can turn off, what you don't need to see in the "view" menu?)

Of course I do. None of the current options cover "memory leak / heap trend analysis" use case though.

[chewiebug]

Yes, you are right!