durationProfiling and ioProfiling for spark application

[sohilgithub]

Hi Team,

1. I am running spark application written in scala. I am not able to do durationProfiling for scala class. Can you please help with this?
2. Regarding ioProfiling, How to do it with HDFS data read and write metrics. From IO metrics captured, I am not able to clearly understand that how much data read and write from HDFS

It will be good if anyone has any example related to how to use it with spark and HDFS
Thanks,
Sohil Raghwani