Processor Speed without Root privilege

[Martin Hristov]

Hi,

I need to obtain the CPU speed, but do not have root privileges. I tried ioscan -C processor but could not run it. I checked the syslog, but the system did not record this info at startup. Any ideas will be greatly appreciated.

Thanks

[Sridhar Bhaskarla]

Hi Martin,

I cannot guarantee. But try these following.

1.

$/usr/sbin/cstm
map -> sel dev xx -> info ->infolog

(where xx is the index of any of the CPUs listed in the map's output)

In the infolog, it will list "Processor Speed".

2.

The neat thing about RP class servers is that HP adds the CPU speed to the model. For ex.,

$model
9000/800/N4000-44

The above means 440mhz processor. However you older ones do not contain this information in the model string.

-Sri

[Michael Tully · Accepted solution]

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

Look for the output of the processor speed.

[Jeff Schussele]

Hey Michael,

I've got K580s & N4000-55s that output only "N/A" in the Processor Speed field from that cstm command.
Not sure that's 100% reliable.

Rgds,
Jeff

[Michael Tully]

Are you guys trying to gang up on me .... ;^)

I don't get that problem on my systems, I did actually try a couple of them....

I would have suggested this command but you need to be root:

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

But it gives an error 13

[Martin Hristov]

Hi Guys,

Thanks for all the replies. I tried echo "selclass qualifier cpu;info;wait;infolog" | cstm on a couple of servers and did get N/A for CPU speed. Model worked as expected, but I am also not sure if it is 100% reliable. I am still a newbie on HP-UX, but I am somewhat surprised that it is so hard to get that info comared to Solaris.
Thanks again.

[monasingh_1]

Well, not always available but If you have console connected to the machine and if still has the boot process in its buffer then you can just page up on the console and get the CPU speed, IT will be just after machine boots...

[Dietmar Konermann]

Martin,

there seems to be really no straight-forward way for non-root to get this information.

However, the kernel provides it through the pstat() systemcall. You may use this little C proggie...

#include
#include

main()
{
struct pst_processor psp;

if (pstat_getprocessor(&psp, sizeof(psp), 1, 0) != -1) {
printf ("%i MHz\n", psp.psp_iticksperclktick/10000);
}
else {
perror("pstat_getprocessor");
exit (1);
}
exit (0);
}

Best regards...
Dietmar.