GPA Manual

Using GPA Information
Guardian Performance Analyzer (GPA) Manual—135081
4-7
Process and Busy Distribution Analyses
Example 4-10 shows that for \NODEC, on the other hand, the most potential for
improvement is in the System Recovery Performance, the Disk Volume Subsystem, and
the CPU Subsystem.
Process and Busy Distribution Analyses
As you look at the Process and Busy Distribution Analyses for \NODEC
(Example 4-11), you can see that the SYSTEM processes are fairly evenly distributed
among the four processors in the system but that the distribution could be improved. You
can also see a relatively large spread in the Busy Distribution for the SYSTEM class,
especially between CPU 1 and CPU 2. Example 4-11
shows that moving some of the
SYSTEM class’s load from CPU 2 to CPU 1 would improve performance.
The SERVER class, the class doing application work, is evenly distributed in terms of
the number of processes. A closer inspection of the CPU Busy Distribution for the
SERVER class shows that the utilizations are less balanced with a difference of 11%
between CPU 2 and CPU 3.
A scan of the aggregate percentages shows the spread in total CPU utilizations varying
from 44% to 69%, and the total of 233% can be compared with an available 400% for
the four CPUs.
Example 4-10. System Performance Indicators for \NODEC
IV. SYSTEM PERFORMANCE SCORE
1. CPU SUBSYSTEM : 76%
2. MEMORY SUBSYSTEM : 92%
3. DISK CACHE SUBSYSTEM : 88%
4. DISK VOLUME SUBSYSTEM : 68%
5. SYSTEM RECOVERY PERFORMANCE : 52%
* 6. WEIGHTED ANALYSIS SYSTEM SCORE : 75%
* Average Score rated: BEST = 100, WORST = 0.