To evaluate 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 more information on DBCAREA, see Teradata® Call-Level Interface Version 2 Reference for Mainframe-Attached Systems, B035-2417.