To get capture more accurate data you can increase the sampling rate. For example instead of one sample every minute (60000 microseconds), with snapshot every 10 minutes (60000, 10) you could use (10, 30000) to get 100 samples per second with one snapshot every 5 minutes. Since the RTI overhead itself shows up in the results (RtiProfilingSupport in the images above), it's easy enough to factor that out.
Once you've used statistical profiling to identify methods of interest, you can use custom instrumentation to get more accurate timing of those methods in the Transaction Profile and Deep Dive Tracing.


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