topic Re: Kernel values report in Operating System - HP-UX

Kernel values report

Lorenzo Meneguzzi — Wed, 22 May 2002 12:41:13 GMT

Hi,

I want to do a report (text file or else) for all the kernel parameters of my computer. I know that with SAM it's possible for the values but I would prefer the formula used.
For instance, nfile=2*nproc...

Regards.

Laurent MENEGUZY

Re: Kernel values report

Sanjay_6 — Wed, 22 May 2002 12:42:41 GMT

Hi,

Try,

kmtune -S /stand/system >/tmp/kernel_para.txt

more /tmp/kernel_para.txt

Hope this helps.

regds

Re: Kernel values report

John Bolene — Wed, 22 May 2002 12:46:28 GMT

Very good product to see everything about your systems.

http://hpux.cs.utah.edu/hppd/hpux/Sysadmin/sysinfo-3.3.1/

Re: Kernel values report

Bill McNAMARA_1 — Wed, 22 May 2002 12:47:19 GMT

Try sysdef

Later,
Bill

Re: Kernel values report

PIYUSH D. PATEL — Wed, 22 May 2002 12:52:05 GMT

Hi,

Try sysdef > /tmp/filename

View the /tmp/filename and you can get all the tunable parameters along with the formulas.

Piyush

Re: Kernel values report

James R. Ferguson — Wed, 22 May 2002 12:54:27 GMT

Hi Laurent:

If you are running 11.x, use 'kmtune' to query you kernel parameter values. On 10.20, use the deprecated 'sysdef'.

To see the actual limits and formulae used with the various parameters look at :

# /usr/conf/master.d/core-hpux

Regards!

...JRF...

Re: Kernel values report

V. V. Ravi Kumar_1 — Wed, 22 May 2002 13:06:48 GMT

hi,

try this if u are using 11.00
kmtune -l > /tmp/kmtune.lst

regds
ravi

Re: Kernel values report

John Carr_2 — Wed, 22 May 2002 13:26:21 GMT

Hi

sysdef will give you the sum of the formulae but not the formulea itself you need to do as JFR said

# /usr/conf/master.d/core-hpux

you can then cross reference this to the output of sysdef to get both formulea and present set values.

John.

Re: Kernel values report

Lorenzo Meneguzzi — Wed, 22 May 2002 13:45:17 GMT

kmtune works fine on my system (11.0)and reports the formula.
sysdef reports only some values (I don't why).

Thanks everybody !

Re: Kernel values report

James R. Ferguson — Wed, 22 May 2002 14:05:22 GMT

Hi:

Do *not* rely on 'sysdef' if you are running on 11.x. 'kmtune' is accurate and is intended as its replacement. 'kmtune' is not available prior to 11.0 and there 'sysdef' is quite useful (obviously).

Regards!

...JRF...

Re: Kernel values report

Bill McNAMARA_1 — Wed, 22 May 2002 14:19:24 GMT

In my opinion they've taken a step backwards with kmtune.

sysdef is much better presented and easier to parse.

Is there an SR on that!

Later,
Bill

Re: Kernel values report

Arockia Jegan — Wed, 22 May 2002 14:24:37 GMT

kmtune is the best command. You can use "kmtune -l" to get more details. kmtune will look at the follwoing directories/files to get the kernel parameters
/usr/conf/master.d
/stand/system.d
/stand/system

But sysdef will only look at /usr/conf/master.d. So it won't show all the parameters.

Re: Kernel values report

H.Merijn Brand (procura — Thu, 23 May 2002 11:23:26 GMT

Though kmtune -l yields all the needed info it's now fun to read. I've written a perl wrapper that reformats and calculated formula's:

(Unclobbered version attached, because the spaces *are* important in the output format)

#!/pro/bin/perl -w

use strict;
use integer;

my (%tune, %parm, $parm, %ref);

open my $list, "kmtune -l |";
while (<$list>) {
s/\s+$//;
my ($p, $v) = split m/:\s+/, $_, 2 or next;
$v =~ s/\b0X([\dA-Fa-f]+)\b/0x\L$1/g;
$p eq "Parameter" and $parm = $v, next;

$tune{$parm}{$p} = $v;

$p eq "Value" or next;
if ($v =~ m/^-?(0x[\da-f]+|\d+)$/) {
$parm{uc $parm} = 0 + $v =~ m/^-?0x/ ? hex $v : $v;
}
else {
#printf STDERR "%-20s: '%s'\n", $p, $v;
$ref{$parm} = $v;
}
}
close $list;

while (keys %ref) {
foreach my $p (keys %ref) {
my $up = uc $p;
my $v = $tune{$p}{Value};
#my @r = (m/\b([A-Za-z]\w*)\b/g);
my $x = 0;
eval q(
$v =~ s/\b([A-Za-z]\w*)\b/exists$parm{uc $1}?$parm{uc $1}:do{$x++,$1
}/ge;
);
$x and next;
eval "\$v = $v";
$parm{$up} = $v;
delete $ref{$p};
}
}

$= = 64;
foreach $parm (sort keys %tune) {
$tune{$parm}{Default} eq $tune{$parm}{Value} and $tune{$parm}{Default} = "";
write;
}

format STDOUT_TOP =
Parameter Value hex Value dec Function Defaul
t
-------------------- ------------ ----------- --------------------------- ------
--------------
.
format STDOUT =
@<<<<<<<<<<<<<<<<<<< @>>>>>>>>>>> @>>>>>>>>>> ^<<<<<<<<<<<<<<<<<<<<<<<<<< ^<<<<<
<<<<<<<<<<<<<<
$parm,sprintf("0x%010x",$parm{uc $parm}),$parm{uc $parm},$tune{$parm}{Value},$tu
ne{$parm}{Default}
~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<< ^<<<<<
<<<<<<<<<<<<<<
$tune{$parm}{Value}, $tune{
$parm}{Default}
.

Re: Kernel values report

Bill McNAMARA_1 — Thu, 23 May 2002 12:42:10 GMT

nice one procura!

kmtune is the best!

Later,
Bill