topic Re: calculating kernel formulas in Operating System - HP-UX

calculating kernel formulas

AFI HP-UX ADMIN — Mon, 30 Jul 2001 14:00:05 GMT

I'm trying to script a kernel review between multiple servers.

Is there a command to retrieve the actual value of a kernel parameter? i.e. the 'current value' column in SAM when tuning a kernel. - kmtune doesn't evaluate formulas.

Re: calculating kernel formulas

Don Morris_1 — Mon, 30 Jul 2001 14:13:12 GMT

Which version of HP-UX? 11i introduced tuneinfo() as part of the dynamic tunables stuff. That would give you current, min, and max.

Re: calculating kernel formulas

Mark van Hassel — Mon, 30 Jul 2001 14:37:56 GMT

Hi Jeff,
You could use "sysdef" but not all parameters are included.

If you want to compare kernels you should compare the formula's i.s.o. the outcome of that formula at any given time. If the formula is the same, the kernel parameter is the same.

You can use /usr/sam/lbin/getkinfo -o [filename] as well to retrieve kernel info.

Re: calculating kernel formulas

Charles Harris — Mon, 30 Jul 2001 14:46:32 GMT

Hi, try sysdef (as root) it should show you all the kernel params.

Cheers,

-ChaZ-

Re: calculating kernel formulas

Rita C Workman — Mon, 30 Jul 2001 15:12:39 GMT

OK...here's another thought.

You could go into SAM and save your kernel info to a file (I often do this so I can print the output later..)
Now use this file and write a script to compare one file with the other....possibly the join or comm command would do the trick .. check the manpages.

Just a suggestion,
Rita

Re: calculating kernel formulas

AFI HP-UX ADMIN — Mon, 30 Jul 2001 15:49:16 GMT

I'm doing this on 11.0. kmtune still seems to be the best answer - sysdef doesn't report on all parameters. Looks like I still have to conquer the formulas...