Performance Monitoring & Tracing in XI

Hi

How can we find out the Time Duration for the whole business Process(Supposingly we take an Scenraio) where XI is taking a large file and pumping it into SAP R/3.

We need to trace how much seconds it took for XI to recieve the file and then send it to SAP System and finally what's the time duration of the whole process.

Kindly let me know, how u perform this activity.

Regards

Swetank