GPA Manual

Using GPA Information
Guardian Performance Analyzer (GPA) Manual—135081
4-26
Optional Report Section for the SYSTEM Class
Example 4-31 shows the additional information you receive when you specify the detail
option for the SYSTEM class. From the Busy Distribution Analysis in Example 4-31,
you can find what percentage of the system resources are being used on the processes in
the class. Note that in the figure, the percentages add up to 100% so that the data can be
described as “normalized” within the class. For example, the primary disk process
(DISK-P) in CPU 0 consumed 17% of the CPU cycles used by the SYSTEM Class.
Since the SYSTEM Class spent 18% of the cycles in CPU 0 (refer to Example 4-11
), the
Primary Disk Process used about 3% of CPU 0’s cycles (18% * 17% = 3.1%). Based on
the summary section for the class, CPU 0 and CPU 2 have the heaviest workloads
because they hold the bulk of the primary disk processes. You can also see from the
detail section that the disk processes consume 87% of the CPU cycles used by the class.
The remaining three detail sections, the Send Distribution Analysis, the Receive
Distribution Analysis, and the Queue Distribution Analysis, are also contained in
Example 4-31
. The dominant process name within the class is the primary disk process.
Note that the backup disk process has enough send activity to appear under CPU 1 and
CPU 3, but not enough receive activity to appear under any CPU. You can also see that
the MONITOR process has a higher percentage of the class’s receive activity than its
send activity; this is expected.
Example 4-31. Additional Information in the Detail Section for the System Class
for \NODEC (page 1 of 2)
SYSTEM Busy Distribution Analysis - Descending Cpu Busy Class %
Process Cpu Cpu Cpu Cpu Cls
Name #00 #01 #02 #03 Pct
-------- --- --- --- --- ----
DISK-P 17 5 45 11 79
DISK-B 4 2 8
MONITOR 2 1 1 1 6
UnNamed 1
TMP 1 1
-------- --- --- --- --- ----
TOTALS 22 12 47 16 99
SYSTEM Send Distribution Analysis - Descending Msg Send Class %
Process Cpu Cpu Cpu Cpu Cls
Name #00 #01 #02 #03 Pct
-------- --- --- --- --- ----
DISK-P 25 2 32 8 68
DISK-B 12 3 17
MONITOR 4 2 2 2 12
-------- --- --- --- --- ----
TOTALS 31 17 35 14 99