HP Integrity NonStop J-Series - Manual (Page 30)

Guardian Performance Analyzer (GPA) User Guide
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Section 2: Running GPA
This section begins with an overview of the procedure for running GPA, followed by detailed
information about the procedure. We strongly recommend that you read through the
overview section before you attempt to install or run GPA for the first time.
Note that using GPA also involves the use of the Measure performance-tool. The GPA
procedure in this section includes the high-level steps for using Measure in conjunction
with GPA. However, since the procedure does not cover all operating aspects, you
should refer to the Measure User‟s Guide for details.
An Overview of the GPA Procedure
To use GPA, you do the following:

Use Measure to collect system performance data.

Determine the period of busiest system use from the data collected by Measure.
This is the period of use for which you want to tune the system.

Run GPA to analyze the data collected by Measure.

Tune the system according to the GPA recommendations.
The items above summarize the GPA procedure, which actually consists of eight major
steps as shown in Figure 2-1. The following paragraphs state briefly the purpose of
each step and specify what you need to keep in mind in each case.
Figure 2-1. GPA Analysis and Tuning Procedure