How to monitor the performance of EBS iAS?

Hello All,
I am looking for your advise on how to monitor the performance of EBS (11i/R12) iAS
How to measure iAS worload during a certain period?
How to know the number of iAS hits/requests?
How to the iAS response time?
Regards,
Tareq

Thanks EBSDBA and Helios for your time.
Are there any scripts/reporting tool that helps me monitor iAS performance other than OEM for EBS?
Note:370583.1 is very helpful in monitoring JDBC connections. Are there any similar Notes/scripts that can answer my questions:
How to measure iAS workload during a certain period?
How to know the number of iAS hits/requests?
How to the iAS response time?
Appreciating your cooperation,
Tareq

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