GPA Manual for G-series RVUs

Guardian Performance Analyzer (GPA) Manual – (544977-001) Page 21 of 106
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 required steps for using Measure in conjunction
with GPA. However, since the procedure does not cover all operating contingencies,
you should refer to the Measure User’s Guide as necessary.
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