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Full Discussion: Linux Command To Find the System Configuration And Hardware Information
Top Forums UNIX for Advanced & Expert Users Linux Command To Find the System Configuration And Hardware Information Post 302934589 by Ymir on Monday 9th of February 2015 02:24:08 AM
Old 02-09-2015
Quote:
Originally Posted by Walter Misar
So according the docs you would expect 12 cores? Can you verify this in the bios?

Anyway, you could check if it is a case of cores being offline to save power:

Code:
cat /sys/devices/system/cpu/online
cat /sys/devices/system/cpu/offline

To check if the kernel was compiled to support less cores do a:
Code:
grep NR_CPUS /boot/config-`uname -r`

yes exactly. i expected 12 cores.
unfortunately these command dosnt work:
Code:
cat /sys/devices/system/cpu/online
cat /sys/devices/system/cpu/offline

here is the output:
Code:
cat /sys/devices/system/cpu/online
cat: /sys/devices/system/cpu/online: No such file or directory
cat /sys/devices/system/cpu/offline
cat: /sys/devices/system/cpu/offline: No such file or directory
 grep NR_CPUS /boot/config-`uname -r`
CONFIG_NR_CPUS=8

thank you.
 

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LEARN ABOUT CENTOS

cpupower-frequency-set

CPUPOWER-FREQUENCY-SET(1)					  cpupower Manual					 CPUPOWER-FREQUENCY-SET(1)

NAME

       cpupower frequency-set - A small tool which allows to modify cpufreq settings.

SYNTAX

       cpupower [ -c cpu ] frequency-set [options]

DESCRIPTION

       cpupower  frequency-set	allows	you  to  modify  cpufreq  settings without having to type e.g. "/sys/devices/system/cpu/cpu0/cpufreq/scal-
       ing_set_speed" all the time.

OPTIONS

       -d --min <FREQ>
	      new minimum CPU frequency the governor may select.

       -u --max <FREQ>
	      new maximum CPU frequency the governor may select.

       -g --governor <GOV>
	      new cpufreq governor.

       -f --freq <FREQ>
	      specific frequency to be set. Requires userspace governor to be available and loaded.

       -r --related
	      modify all hardware-related CPUs at the same time

       REMARKS

       By default values are applied on all cores. How to modify single core configurations is described in the cpupower(1) manpage in	the  --cpu
       option section.

       The -f FREQ, --freq FREQ parameter cannot be combined with any other parameter.

       FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz by postfixing the value with the wanted unit name, without any space (fre-
       quency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).

       On Linux kernels up to 2.6.29, the -r or --related parameter is ignored.

FILES

       /sys/devices/system/cpu/cpu*/cpufreq/
       /proc/cpufreq (deprecated)
       /proc/sys/cpu/ (deprecated)

AUTHORS

       Dominik Brodowski <linux@brodo.de> - author
       Mattia Dongili<malattia@gmail.com> - first autolibtoolization

SEE ALSO

       cpupower-frequency-info(1), cpupower(1)

									0.1						 CPUPOWER-FREQUENCY-SET(1)
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