RFC Trace Records 
The following columns of an RFC trace record are particularly significant:
In the Basic List
Duration Execution time for the Remote Function Call in the form milliseconds.microseconds.
Object Shortened name of the instance (system) in which the remotely-called function module was executed.
- Oper
ID of the cross-instance RFC communication. The RFC Client is the instance that calls the function module remotely. The server is the instance that makes the function available and executes it.
- Rec
Not used.
- RC
Return code of the logged remote call. If the return code is zero, the remote call was successful. If the value is not equal to zero, an error occurred.
- Statement
This column contains the name of the local instance, the name of the remote instance, the name of the function module called, and the number of bytes sent and received.
In the Extended List
hh:mm:ss.ms The time at which the remote call was executed, in the form hours: minutes: seconds: milliseconds.
Program Name of the ABAP program that triggered the Remote Function Call.
Curs Not used.
For further details, refer to
Detailed Display of RFC Trace Records.