HP Integrity NonStop J-Series - Manual (Page 54)

Guardian Performance Analyzer (GPA) User Guide
– (544541-006) Page 54 of 131
Processor Load Balance and Performance Charts
This section of the report consists of two charts: the Processor Load Balance Chart and
the Processor Performance Chart.
Processor Load Balance Chart
This chart (Example 3-6) shows graphically how the system load is distributed among the
node‟s processors. Each CPU‟s percentage busy is shown in the area between the two
horizontal scale lines. The plus (+) signs indicate graphically the proportion of the CPU
busy time spent doing interrupt processing.
The tuning window is the amount that the percentage busy time for any processor can
deviate, either up or down, from the average value for the node without being
considered out of balance. The tuning window is depicted graphically on the Processor
Load Balance Chart. A processor is within the tuning window when its CPU busy level
is between the series of w‟s at the top and bottom of the chart.
The chart also indicates any abnormal condition for a CPU with regard to memory
shortage or excessive transient processes. These conditions are indicated by flags
(characters following the CPU busy level) whose meanings are explained at the bottom
of the figure.
Example 3-6. Processor Load Balance and Performance Charts
CPU PROCESSOR LOAD BALANCE CHART
NUM
--- ROUNDED TO NEAREST TWO PERCENT (2%)
|----+----+----wwww^wwww-+----+----+----+----+----|
0 |+++++-------------^-->
1 |+++++-------------^-->
2 |++++------------->^
3 |+++---------> ^
|----+----+----wwww^wwww-+----+----+----+----+----|
0 1 2 3 4 5 6 7 8 9 1
0 0 0 0 0 0 0 0 0 0
0
CPU PERCENT BUSY -------------------------------->