TUNED_ADM(8) TuneD TUNED_ADM(8)
NAME
tuned-adm - command line tool for switching between different tuning
profiles
SYNOPSIS
tuned-adm [list | active | profile [profile]... | profile_info
[profile]... | off | auto_profile | profile_mode | verify [-i |
--ignore-missing] | recommend | instance_acquire_devices devices
instance | get_instances [plugin] | instance_get_devices instance]
DESCRIPTION
This command line utility allows you to switch between user definable
tuning profiles. Several predefined profiles are already included. You
can even create your own profile, either based on one of the existing
ones by copying it or make a completely new one. The distribution
provided profiles are stored in subdirectories below
/usr/lib/tuned/profiles/ and the user defined profiles in
subdirectories below /etc/tuned/profiles/. If there are profiles with
the same name in both places, user defined profiles have precedence.
OPTIONS
list List all available profiles.
profiles List all available profiles.
plugins List all available plugins.
-v, --verbose List plugin's configuration options and
their hints.
active Show current active profile.
profile [PROFILE_NAME]...
Switches to the given profile. If more than one profile is
given, the profiles are merged (in case of conflicting settings,
the setting from the last profile is used) and the resulting
profile is applied. If no profile is given, then all available
profiles are listed. If the profile given is not valid, the
command gracefully exits without performing any operation.
profile_info [PROFILE_NAME]...
Show information/description of given profile or current profile
if no profile is specified.
verify [-i | --ignore-missing]
Verifies current profile against system settings. Outputs
information whether system settings match current profile or not
(e.g. somebody modified a sysfs/sysctl value by hand). Detailed
information about what is checked, what value is set and what
value is expected can be found in the log. With the -i or
--ignore-missing it does not treat missing tuning (tuning
unsupported by the platform) as error.
recommend
Recommend a profile suitable for your system. Currently only
static detection is implemented - it decides according to data
in /etc/system-release-cpe and virt-what output. The rules for
autodetection are defined in the file
/usr/lib/tuned/recommend.d/50-tuned.conf. The default rules
recommend profiles targeted to the best performance, or the
balanced profile if unsure.
The default rules can be overridden by the user by putting a
file named recommend.conf into /etc/tuned, or by creating a file
in the /etc/tuned/recommend.d directory. The file
/etc/tuned/recommend.conf is evaluated first. If no match is
found, the files in the /etc/tuned/recommend.d directory are
merged with the files in the /usr/lib/tuned/recommend.d
directory (if there is a file with the same name in both
directories, the one from /etc/tuned/recommend.d is used) and
the files are evaluated in alphabetical order. The first
matching entry is used.
auto_profile
Enable automatic profile selection mode, switch to the
recommended profile.
profile_mode
Show current profile selection mode.
instance_acquire_devices devices instance
Move all provided devices under the given plugin instance. The
plugin instance is identified using its name from the TuneD
profile.
The devices are specified using a comma-separated list. When
moving a set of CPUs, it is possible to use the cpulist syntax
by including the 'cpulist:' prefix. For instance,
'cpulist:0,2-4' will move the devices cpu0, cpu1, cpu2, and
cpu4.
get_instances [plugin]
List active instances of a given plugin or all active instances
if no plugin is specified.
instance_get_devices instance
List devices currently assigned to a given instance.
off Unload tunings.
FILES
/etc/tuned/*
/usr/lib/tuned/*
SEE ALSO
tuned(8) tuned.conf(5) tuned-profiles(7) tuned-profiles-atomic(7)
tuned-profiles-sap(7) tuned-profiles-sap-hana(7)
tuned-profiles-mssql(7) tuned-profiles-oracle(7)
tuned-profiles-realtime(7) tuned-profiles-nfv-host(7)
tuned-profiles-nfv-guest(7) tuned-profiles-cpu-partitioning(7)
tuned-profiles-compat(7) tuned-profiles-postgresql(7)
tuned-profiles-openshift(7) tuned-profiles-spectrumscale-ece(7)
AUTHOR
Jaroslav Skarvada <jskarvad@redhat.com>
Jan Kaluza <jkaluza@redhat.com>
Jan Vcelak <jvcelak@redhat.com>
Marcela Maslanova <mmaslano@redhat.com>
Phil Knirsch <pknirsch@redhat.com>
Fedora Power Management SIG 30 Mar 2017 TUNED_ADM(8)