To evaluate Teradata Database performance, use the optional Host System Interface (HSI) time stamps.
When this option is used, the Host System Interface to TDP (HSIT) forwards time stamps from various parts of the client system.
The information is returned in the CLIv2 DBCAREA. For details on DBCAREA, see Teradata Call-Level Interface Version 2 Reference for Mainframe-Attached Systems (B035-2417).