cpufreq-selector(1) General Commands Manual cpufreq-selector(1)NAME
cpufreq-selector -- tool to set CPU frequency
SYNOPSIS
cpufreq-selector [-c CPU] [-g GOV] [-f FREQ]
DESCRIPTION
cpufreq-selector is a command-line tool for choosing CPU frequency settings.
OPTIONS
This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included
below.
-?, --help " 10 Show summary of options.
-c NUMBER,
--cpu=NUMBER " 10 number of CPU to set. If omitted, zeroth CPU is implied.
-g GOV,
--governor=GOV " 10 CPU governor to use, such as ``powersave'', ``performance''.
-f FREQ,
--freq=FREQ " 10 CPU frequency to use, in kHz.
AUTHOR
cpufreq-selector, as part of gnome-applets, was written by Carlos Garcia Campos carlosgc@gnome.org and other GNOME contributors.
This manual page was written by Theppitak Karoonboonyanan thep@linux.thai.net for the Debian system (but may be used by others). Permis-
sion is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later ver-
sion published by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.
cpufreq-selector(1)
Check Out this Related Man Page
cpufreq-info(1)cpufreq-info(1)NAME
cpufreq-info - Utility to retrieve cpufreq kernel information
SYNTAX
cpufreq-info [options]
DESCRIPTION
A small tool which prints out cpufreq information helpful to developers and interested users.
OPTIONS -c --cpu <CPU>
<CPU> number which information shall be determined about.
-e --debug
Prints out debug information.
-f --freq
Get frequency the CPU currently runs at, according to the cpufreq core.
-w --hwfreq
Get frequency the CPU currently runs at, by reading it from hardware (only available to root).
-l --hwlimits
Determine the minimum and maximum CPU frequency allowed.
-d --driver
Determines the used cpufreq kernel driver.
-p --policy
Gets the currently used cpufreq policy.
-g --governors
Determines available cpufreq governors.
-a --related-cpus
Determines which CPUs run at the same hardware frequency.
-a --affected-cpus
Determines which CPUs need to have their frequency coordinated by software.
-s --stats
Shows cpufreq statistics if available.
-y --latency
Determines the maximum latency on CPU frequency changes.
-o --proc
Prints out information like provided by the /proc/cpufreq interface in 2.4. and early 2.6. kernels.
-m --human
human-readable output for the -f, -w, -s and -y parameters.
-h --help
Prints out the help screen.
REMARKS
You can't specify more than one of the output specific options -o -e -a -g -p -d -l -w -f -y.
You also can't specify the -o option combined with the -c option.
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 cpufreq-set(1)Mattia Dongili 0.1 cpufreq-info(1)
Need to find CPU Speed of zLinux.
The commands like cat /proc/cpuinfo and /usr/bin/cpufreq-info does not gave me the expected results.
/usr/bin/cpufreq-info prints the
....
analyzing CPU 0:
no or unknown cpufreq driver is active on this CPU
analyzing CPU 1:
no or unknown cpufreq... (1 Reply)
The file /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_frequency reads a value of 800 Mhz . The powertop tool also suggested that 800 Mhz w3as the minimum frequency being used . I changed the above-mentioned file to 1.6 GHz and monitored powertop tool again . To my surprise, it still said that... (3 Replies)
Hello, I would like to know whether there is software to search for bottlenecks in the configuration PC. I'm talking about those cases where the increase in CPU frequency may not lead to anything in DDR1 RAM 300, for example. I would like to have software that shows which components are most... (3 Replies)
Hi ,
we upgarded our AIX from 5.3 to 6.1 and upgraded our xlc compiler from ver 6.0 to 9.0 .
After this upgrade one of our pro*C program is utilizing around 20% of the CPU. Before upgarde its using only 0.2 %.
when i try to debug using the truss command i got the below error.
$... (6 Replies)
I'd like to install cpufreq modules on my server .
I tried
sudo modprobe acpi-cpufreq
but got the error
FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.18-238.12.1.el5xen/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko): No such device
cat /proc/cpuinfo gives this
... (11 Replies)
Just decided to run the benchmark for the heck of it.
-Version-
Dist: Debian GNU/Linux 8.5
CPU/Speed: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
RAM: DDR4 DRAM 64 GB 3000 MHz CMK64GX4M4B3000C15
MB: Maximus VIII Ranger
Bus: 8 sata, 1 M.2 Socket 3
Cache: L2=4 x 256KB, L3=8 MB shared... (1 Reply)