CPU Types

Purpose

Maintain CPU normalization factors.

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Administration ⇒ Analyzer ⇒ Customizing

Tasks for an initial basic setup

Mandatory - but can be done or changed at any time later on.

Figure 3–2 CPU Types

The CPU types are automatically recognized in your landscape and corresponding entries are automatically created for each new CPU type as performance data is imported. Normally, there is no need to create or delete an entry manually. However, it is important to maintain the proper CPU normalization factor after a new entry was created automatically.

• CPU type: Type of the CPU as recognized and applied by the N1 AA Analyzer.

• Normfactor: New entries created automatically by the N1 AA Analyzer data import job have the default value of 1.0. Adjust this value to reflect the relative CPU throughput as compared to the existing CPUs in your landscape.

The outcome of normalization is that N1 AA stores all measured CPU utilization. Based on the Normfactor of the CPU type, N1 AA calculates and also stores normalized CPU seconds. In the simplest case, this is consumed seconds * Normfactor. In this way, MDX queries can be defined based on CPU seconds or normalized CPU seconds. See the predefined MDX Queries as an example of how to use either CPU seconds or normalized CPU seconds.

Exercise care when deleting CPU types. You lose all related resource consumption data that has been collected by the Performance Collector on the N1 AA Clients and imported into the database.