Ability to Specify Thresholds for metrics and report it.

[rahul26goyal]

Currently, we report all the metrics at a scheduled interval and it ends up creating a lot of noisy data.
Would it be better to only report metrics after a given Threshold is Breached?
Example: Report HeapUsed when its > 60% heap Max.
Report GC when the time spent is more than X.

[hiboyang]

Normally we report all metrics and filter them during query time. If you would like to add some threshold inside profiler, please also go ahead. Probably control those thresholds by some arguments to the java agent.