topic Re: computing kernel values in Operating System - HP-UX

computing kernel values

Jdamian — Mon, 14 Jan 2002 17:24:31 GMT

I use kmtune to get the kernel parameters values from command line. But it reports the formulae instead of current numerical values for those parameters that are computed using a formulae.

Is there any other way to obtain those values.

P.D: I tried to use a single AWK program but it is more difficult than it seems because kmtune reports kernel parameters sorted by its name.

Re: computing kernel values

Patrick Wallek — Mon, 14 Jan 2002 17:31:32 GMT

You can get those by going into SAM, and then going to "Kernel Configuration" and then "Configurable Parameters". A list of all parameters and their current values will come up. You can also modify from here if need be.

I've always found it a bit easier to let sam modify the kernel and rebuild it for me.

Re: computing kernel values

Sridhar Bhaskarla — Mon, 14 Jan 2002 17:32:43 GMT

I hate to say this but "SAM" gives you the values. Sysdef may also help.

-Sri

Re: computing kernel values

Paula J Frazer-Campbell — Mon, 14 Jan 2002 17:35:46 GMT

Hi

Cat /stand/system will show the kernel value that are changed from default.

Paula

Re: computing kernel values

harry d brown jr — Mon, 14 Jan 2002 17:36:03 GMT

You could also do it via perl, and if you are interested, I'll give you an example.

live free or die
harry

Re: computing kernel values

T. M. Louah — Mon, 14 Jan 2002 18:24:52 GMT

o add to above, use tune.h to take looat how those kernel parms being used. For example, to know what other kernel parms use the MAXUSERS do:
root:> grep MAXUSER /stand/build/tune.h

#define MAXUSERS 32
#define NCLIST (100+16*MAXUSERS)
#define NFILE (16*(NPROC+16+MAXUSERS)/10+32+2*(NPTY+NSTRPTY+NSTRTEL))
#define NINODE ((NPROC+16+MAXUSERS)+32+(2*NPTY))
#define NPROC (20+8*MAXUSERS)

g'd luck
t++

Re: computing kernel values

Jdamian — Tue, 15 Jan 2002 11:03:17 GMT

I noticed that I didn't explain my scenario: I must run a script in order to get system info.

I know SAM reports numerical values but I didn't mention because SAM cannot be used in a script excepting the right lbin program is executed.

Thanks to Sridhar Bhaskarla who gave me the right clue: the sysdef command

Re: computing kernel values

Magdi KAMAL — Tue, 15 Jan 2002 11:59:47 GMT

Hi Damien,

Try :

# sysdef

It will reports only values.

Magdi

Re: computing kernel values

Paula J Frazer-Campbell — Tue, 15 Jan 2002 13:59:53 GMT

Hi
Small script to interogate output from sysdef.
------------cut here-----------
#!/bin/sh
###########################
# Extract from sysdef output
/etc/sysdef >>/tmp/sysdef.out
cat /tmp/sysdef.out | awk '{print $1,$2}'
------------cut here-----------------