GPA Manual

Using GPA Information
Guardian Performance Analyzer (GPA) Manual—135081
4-22
Expected System Performance After Tuning
Changes
utilized. The CHNG CPU BUSY% is the reduction in CPU cycle consumption that will
result from this switch in primary.
GPA calculates the difference in the consumption of the primary and backup processes
(allowing for mixed processor systems: TNSII-TXP, CYCLONE-VLX, CLX600-
CLX700, and CLX700-CLX800) and verifies that the switch will be successful. GPA
verifies that sufficient cycles and memory are available on the backup processor to allow
the switch without causing problems.
Expected System Performance After Tuning Changes
The next section of the report (Example 4-27 and Example 4-28) shows two charts that
indicate what effect implementing the GPA tuning recommendations would have on
system performance. By comparing the two sections of the report, you can see exactly
how the system load would be rebalanced and how other performance parameter values
would change.
Notice that the memory shortage in \NODEA is so severe that even the GPA process
move recommendations would not correct this condition. In such a case, a complete
hardware configuration analysis should be performed. (For more information on this
type of analysis, contact your Tandem Representative.)
Example 4-26. Primary Switch Recommendations for \NODEB
Primary Switch Recommendations Primary Issue: CPU OUT OF BALANCE
CPU: 1 OVER BUSY BY: 23.38%
Chng
Fm Process To Cpu Mem
Action Cpu Pin Name Program File Name Cpu Busy% Pages
------ --- ---- ------- ----------------------- --- ----- -----
SWITCH 1 51 $PlAX $PRODl MIDSOBJ RPQAUTH 0 0.56 35
SWITCH 1 59 $PlCl $PRODl MIDSOBJ RPQC910 2 0.52 125
SWITCH 1 61 $PlS8 $PRODl MIDSOBJ RPQFRST 0 0.22 74
SWITCH 1 92 $PlSA $PRODl SW400BJ ADP 2 0.19 56
SWITCH 1 62 $PlFl $PRODl MIDSOBJ FEP 3 0.18 30
SWITCH 1 52 $PlS7 $PRODl MIDSOBJ RPQCASH 0 0.16 68
SWITCH 1 65 $PPSl $PROD3 PS340BJ ASPDH 3 0.15 35
SWITCH 1 58 $PlS4 $PRODl MIDSOBJ RPQROCK 0 0.12 55
----- -----
Totals 8 processes 2.10 478