topic Re: How to Know frequency of CPUs in Operating System - HP-UX

How to Know frequency of CPUs

Peeyush_1 — Thu, 17 Jun 2004 09:02:56 GMT

Hi All,
How can I know frequency of CPUs on HP UX system ? Plz note that i don't have root priviledge. Like in Solaris command is
/usr/sbin/psrinfo -v
This command does not require root priviledge in solaris. Every general user can run this command. Please tell me same function command on HP UX system.
Thanks in Advance
Peeyush

Re: How to Know frequency of CPUs

Fabio Ettore — Thu, 17 Jun 2004 09:07:16 GMT

Hi,

launch SAM:

# sam ---> Performance Monitor ---> System Properties ---> clock frequency

Otherwise by commandline:

# echo itick_per_usec/D | adb -k /stand/vmunix /dev/mem

It will obtain a number which will be the CPU frequency.

HTH.

Best regards,
Ettore

Re: How to Know frequency of CPUs

Todd McDaniel_1 — Thu, 17 Jun 2004 09:19:18 GMT

Just an fyi... here is a great site for similar commands.

dynamic site you can compare 2 or more OSs...

http://bhami.com/rosetta.html

Another static site...
http://www.unixguide.net/unixguide.shtml

Re: How to Know frequency of CPUs

Peeyush_1 — Thu, 17 Jun 2004 09:23:10 GMT

Hi,
SAM won't help me beacuse i am connected with server with telnet and command adb i think require root permission.
plz some other solution.
Regards,
Peeyush

Re: How to Know frequency of CPUs

Pete Randall — Thu, 17 Jun 2004 09:23:54 GMT

You can use this little script:

HPUX=/stand/vmunix

MHZ=$(echo itick_per_tick/D \
| adb -k $HPUX /dev/kmem \
| tail -1 \
| awk '{print $2/10000}')
echo $MHZ

Pete

Re: How to Know frequency of CPUs

Todd McDaniel_1 — Thu, 17 Jun 2004 09:25:26 GMT

You can use sam from a telnet session, it will default to text TUI mode...

Thats all I use on my boxes...

Re: How to Know frequency of CPUs

Geoff Wild — Thu, 17 Jun 2004 09:29:11 GMT

Yes - you need root access....

Here's a little script...

#!/bin/ksh
#
# Taken from the HP/UniGraphics FAQ
# You must be ROOT to execute this since it uses adb to
# examine the running kernel
#
GetKernelSymbol()
{
echo "$1/D" | \
adb -k $hpux /dev/kmem | \
tr "\012" " " | \
read junk junk2 kval
}
hpux=/hp-ux
rev=$(uname -r | cut -d. -f2)
if ((rev > 9)); then hpux=/stand/vmunix ;fi
/bin/uname -a
GetKernelSymbol "processor_count"
print CPU Count: $kval
GetKernelSymbol "itick_per_tick"
let speed=kval/10000
print CPU Speed: $speed MHz
if ((rev > 10)); then
print CPU HW Support: `getconf HW_CPU_SUPP_BITS`-bit
print Kernel Support: `getconf KERNEL_BITS`-bit
GetKernelSymbol "memory_installed_in_machine"
else
GetKernelSymbol "physmem"
fi
let mb=kval*4/1024 # convert pages to MB
print RAM Size: $mb MB
GetKernelSymbol "bufpages"
let mb=kval*4/1024 # convert pages to MB
print bufpages: $mb MB
GetKernelSymbol "maxuprc"
print maxuprc: $kval
GetKernelSymbol "maxvgs"
print maxvgs: $kval
GetKernelSymbol "maxfiles"
print maxfiles: $kval
GetKernelSymbol "max_thread_proc"
print max_thread_proc: $kval
GetKernelSymbol "nfile"
print nfile: $kval
GetKernelSymbol "nflocks"
print nflock: $kval
GetKernelSymbol "nproc"
print nproc: $kval
GetKernelSymbol "ninode"
print ninode: $kval
GetKernelSymbol "vfd_cw"
print shmmax: $kval
GetKernelSymbol "shmmni"
print shmmni: $kval
GetKernelSymbol "dbc_max_pct"
print dbc_max_pct: $kval

Rgds...Geoff

Re: How to Know frequency of CPUs

Fabio Ettore — Thu, 17 Jun 2004 09:40:26 GMT

SAM starts as Terminal User Interface too.
Then it is not a problem if you are in telnet.

It is not possible to know it by a NOT-root user!

Best regards,
Ettore

Re: How to Know frequency of CPUs

Bruno Ganino — Thu, 17 Jun 2004 09:44:00 GMT

In Solaris
kstat -m cpu_info

Bruno

Re: How to Know frequency of CPUs

Bruno Ganino — Thu, 17 Jun 2004 09:49:43 GMT

as root try this
echo itick_per_tick/D | adb /hp-ux /dev/kmem | tail -n1 \
| awk '{print $2 / 10000, "MHZ"}'

Re: How to Know frequency of CPUs

Tom Maloy — Thu, 17 Jun 2004 09:53:16 GMT

If the diagmond process is running, you can do this:

echo "selclass qualifier cpu;info;wait;infolog"|cstm

One of the output lines will look like this:

Instruction Cache [Kbyte]: N/A Processor Speed: 875000000

for an 875 MHz processor.

Tom

Re: How to Know frequency of CPUs

Tom Maloy — Thu, 17 Jun 2004 09:56:47 GMT

Forgot to mention that

echo "selclass qualifier cpu;info;wait;infolog"|cstm

does not require root access, but you may have to specify the full path of /usr/sbin/cstm.

Tom

Re: How to Know frequency of CPUs

RAC_1 — Thu, 17 Jun 2004 09:59:13 GMT

As you do not have root access, use model command, the last part is cpu frequency in hertz. But not very relibale though.

anil

Re: How to Know frequency of CPUs

H.Merijn Brand (procura — Thu, 17 Jun 2004 10:06:27 GMT

My FAQ sais it all:

What is my CPU speed?

d3:/ 103 # echo itick_per_usec/D | adb -k /stand/vmunix /dev/mem
itick_per_usec:
itick_per_usec: 240
d3:/ 104 #

Or with Perl:

a5:/wrk 108 > perl -MUnix::Processors -le'print join"\t",$_->id,$_->state,$_->type,$_->clock for @{Unix::Processors->new()->processors}'
0 online HP PA-RISC 2.0 750
1 online HP PA-RISC 2.0 750
a5:/wrk 109 >

For the adb version one indeed does need root access. But you can get it without root access too, using a small C-program calling

if (pstat_getprocessor (&psp, sizeof (psp), 1, 0)) {
clock = psp.psp_iticksperclktick / 10000;
}

This is what the perl module does

My HP ITRC site pages can be found at (please use LA as primary choice):

USA Los Angeles http://mirrors.develooper.com/hpux/
SGP Singapore https://www.beepz.com/personal/merijn/
USA Chicago http://ww.hpux.ws/merijn/
NL Hoofddorp http://www.cmve.net/~merijn/

Enjoy, have FUN! H.Merijn