It is one of the key system performance indicators that can be found in
ST03n transaction > Detailed Analysis > Last Minute’s Load:

Average response Time/Dialog Step (ms) =
Avg. Processing Time + Ø DB Time (ms) + Ø Time/DB Procedure Call (ms) + Average Wait Time per Dialog Step (ms) + Average Roll In Time (ms) + Average Roll Wait Time (ms) + Average Load and Generation Time (ms) + Average Lock Time per Dialog Step (ms)

*Particularly significant components are highlighted in bold