Displaying the Contents of the Central Performance History

Use

Independent of scheduling and executing reports of the Central Performance History (CPH), you can check at any time which MTE classes from which systems are in the CPH. You can also display the stored performance values of the MTE classes.

A data record of the CPH is characterized by the following parameters:

Parameter	Notes
System	System ID
Context	Usually the name of the application server in the format <Host name>_<System-ID>_<Instance number>
Object	Such as Dialog
Attribute	Such as ResponseTime
MTE Class	Such as R3DiaologResponseTime
Date
Aggregate type	Time unit between day and year
Resolution	Time unit between minute and day; for a basic explanation of the meaning of aggregate type and resolution, see aggregation

Depending on the resolution, a data record has the following structure:

Resolution	Structure	Number of Values per Data Record
Minute	The number of measurements and the total of the measured values are displayed for each time interval. The average value is only calculated for the creation of reports or in the display.	2 ´ 1440 (Minutes per day) = 2880
Quarter hour		2 ´ 96 (Quarter hours per day) = 192
Hour	The number of measurements, the total, and the average of the measured values are displayed for each time interval.	3 ´ 24 (Hours per day) = 72
Day		3

Procedure

You can display the content of the CPH from several functions:
- In the overview screen of the CPH (transaction RZ23N), choose, in the Data group box, the Overview of Available Data pushbutton.
- On the Edit Report Definition screen (see Creating a Report Definition), choose, in the Add Objects group box, the tab page Select from Database. You can select MTE classes of the CPH for a report definition here.
In both cases, a screen appears in which you can see which MTE classes from which system are available in the CPH. The screen has the following structure:
After calling the screen, the system displays the MTE classes of the local system for which there are entries in the CPH. If you want to display the entries for multiple remote systems, select the corresponding systems and choose the Select data pushbutton.Display Systems (). To display the entries for a remote system, choose the relevant system by double clicking it.
If you have come to this screen to select MTE classes for a report definition, select the relevant rows, and choose the OK pushbutton ().
If you want to learn more about the entries in the CPH for particular MTE classes, select the corresponding rows and choose Select Data.Display Entries ().
On the next screen, the system displays the time period for which data exists in the CPH for the selected MTE classes. The system also displays the aggregate type, the resolution, and the number of data records that exist for this combination of aggregate type and resolution. If you have selected multiple MTE classes, choose the pushbuttons Previous Object () or Next Object (), to view the different classes.
Note
You can also switch to this screen directly from the Alert Monitor (transaction RZ20). To do this, activate the maintenance functions, select the MTE classes for which you require CPH values, and choose Display History of Selected MTE Classes ().
If you want to display the contents of selected data records, select the corresponding rows and choose Display Selected Entries ().
On the next screen, the system displays the contents of the selected data records. In the Time Interval group box, you can specify the time period for which the contents are to be displayed. In the Display Mode group box, you can define whether a data record (two dimensional) or a value (one dimensional) is to be displayed per row. If you have selected data records of different aggregate types or granularities, choose the pushbuttons Previous Object () or Next Object (), to view the different records.
To return to the previous screen, choose Close ()

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