HP-UX

I you cant tell us what processes, we cant give you answers...
When the system is the cause, without correct information of the model, system configuration ( CPUs, memory, kernel parameters, swap config, using LVM/JFS? what JFS paramaters are set etc...) you cant give a pertinent answer and if application, only application team can help you... If system, knowing the configuration of the system, we can help you only if you can diagnose correctly the cause, in other words the least would be describing correctly what is happening, when, how long, and how systematic...

Hi Vbe..

Thanks for the reply...

It was the one of process that Application calls(OrderEntry --- for Completing the registration of the subscriber in our ERP system ),now basically my management wants me to diagnose why that registartion process took much CPU.

So my question is will this be a part of sys admin activity or application admin only can provie details about the cause since being system admin I will not be knowing the code of Application

My Operating System Version is
HP-UX prod B.11.11 U 9000/800

---------- Post updated at 03:50 AM ---------- Previous update was at 03:49 AM ----------

To Add more info, system is having 32 CPUs and 40G of physical RAM.

Kernel parameters are attached herewith and LVM is used...

Do you mean it took for a time ( how long?) all 32 CPUs?

What is the output of model command?
And what does swapinfo -tam give ou?
How are configured your disks? e.g. "external SAN using 4 FC HBAs"

Repeating the question will not get you a better answer.

The system cannot tell you that. You'll have to investigate the application.

How did the management know about the spike? Are you running a performance monitoring package, and if so, which one?

One process using 100% of one CPU for a short period is usually totally harmless. If you get processes waiting for CPU, then there may be a sizing, tuning or programming issue.

I have seen systems will all CPUs running close to 100% and no significant wait states. That just meant that they bought the right size of computer.

Yes Methyl,..we are using NimSoft for performance monitoring,so email is received as soon as the system resources are used beyond threshold.

Multiple instances of OrderEntry process was running at that time, each one utilizing almost one CPU each.

Code:

 
prod:root:/# model
9000/800/SD32B
prod:root:/#
 
 
prod:root:/# swapinfo -tam
             Mb      Mb      Mb   PCT  START/      Mb
TYPE      AVAIL    USED    FREE  USED   LIMIT RESERVE  PRI  NAME
dev       16384       0   16384    0%       0       -    1  /dev/vg00/lvol2
dev       30016       0   30016    0%       0       -    1  /dev/vg00/secswap
dev       51200       0   51200    0%       0       -    1  /dev/vg01/lvswap
reserve       -   17835  -17835
memory    31082    3344   27738   11%
total    128682   21179  107503   16%       -       0    -
prod:root:/#