topic Kernel Parameters in Operating System - HP-UX

Kernel Parameters

Omer Mukthar — Sat, 29 Mar 2003 09:48:21 GMT

Dear All,

Is there a way to know how much kernel values are utilized by the applications from the current kernel value settings? I would like to know if really the application needs more resources, so that I can tune the kernel parameters.

Re: Kernel Parameters

Norman_21 — Sat, 29 Mar 2003 10:27:51 GMT

Hi,

I would suggest that you install Glance. It is easy to understand and figure out if you need to tune some of the Kernel parameters.

Hope this help.

Re: Kernel Parameters

U.SivaKumar_2 — Sat, 29 Mar 2003 10:34:37 GMT

Hi,

To monitor number of open files , number of locks etc in the system.

#sar -v 1 20

regards,

U.SivaKumar

Re: Kernel Parameters

Omer Mukthar — Sat, 29 Mar 2003 11:52:25 GMT

Glance shows only the following values ! what about the rest of the kernel parameters ? !

System Table Available Used Utilization High(%)
--------------------------------------------------------------------------------
Proc Table (nproc) 7320 366 5 5
File Table (nfile) 19136 4394 23 23
Shared Mem Table (shmmni) 1024 52 5 5
Message Table (msgmni) 4096 6 0 0
Semaphore Table (semmni) 4096 40 1 1
File Locks (nflocks) 4000 1590 40 40
Pseudo Terminals (npty) 400 3 1 1
Buffer Headers (nbuf) na 553574 na na

Re: Kernel Parameters

Rizwan Mohammed — Sat, 29 Mar 2003 16:00:48 GMT

Hi

You can check with glance plus ,if you have perf view this will give you clear picture of disk i/0, each and every disk utilisation indivially,memory,cpu etc ,accordinly u can tune the kernel parmeter ,finding out the bottle neck.

Rizwan

Re: Kernel Parameters

Norman_21 — Sat, 29 Mar 2003 17:14:29 GMT

Ok Omar,

If you want to list the kernel parameters, then use th following command:

#sysdef|pg

This will list the kernel parameters as well as the values next to each.

Hope this more clear.
Thanks.

Re: Kernel Parameters

Steven E. Protter — Sun, 30 Mar 2003 02:43:25 GMT

Just in case it might help, I'm attaching a system data collection script.

Glance however system tables report is a great way to explore utilization versus settings.

SEP

Re: Kernel Parameters

Frank Slootweg — Mon, 31 Mar 2003 11:57:01 GMT

If you use HP-UX 11i (i.e. 11.11 or higher) then you can also use the, sometimes optional, kcweb web interface (or the command-line commands which come with the kcweb product).

If your version of 11i does not have kcweb, you can download it from http:/www.software.hp.com (just click the "search" button and search for "kcweb").