| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Users_response_time |
The average time that the user waits at the front end for his or her request to be processed. It is the sum of the Dialog process time, Network transfer time, Queue time and GUI Callback time. |
Secs
|
If the user response time increases, while the standard response time remains stable, it means that the problem must be at the front end or in the connection to the application server. |
| Network_transfer_time |
The time taken by the network for the first data transfer between the front end and the application server and during the last data transfer from the application server to the front end |
Secs
|
The value of this measure does not include round trips. |
| Queue_time |
The average wait time in the dispatcher wait queue |
Secs
|
With a normal workload, there should always be free dialog work processes available. In such a case, the wait time will only be a few milliseconds.
|
| Gui_callback_time |
The average length of time that a work process waits for the front end during the communication between the application server and the front end |
Secs
|
|
| Dialog_process_time |
The total time that is required for processing a SAP R/3 dialog step, including the database processing time |
Secs
|
Check the CPU performance, system paging, dialog work processes, and database performance for any performance lag in the dialog process time.
|
| Load_gen_time |
The average load generation time for source texts, graphical user interfaces and screen information from the database |
Secs
|
|
| Db_process_time |
The average time for processing logical database requests |
Secs
|
Read requests can either be sent to the database buffers or to the fast local SAP buffers. The efficiency of the buffers, the required number of requests as well as a large number of database change requests affect the total access time. The database access time also takes into account the db server, CPU performance as well as network transfer times.
|
| Std_response_time |
The time taken for a standard transaction that simulates the normal workload of a transaction by accessing data on the database and executing a series of ABAP function modules |
Secs
|
If the dialog response time is deteriorating consistently, while the standard response time remains stable, check the number of users logged on. If there are only a small number of users, the use of very resource-intensive transactions by one user can, in extreme cases, significantly increase the response time. If this is the case, there is often no serious performance problem.
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