Tuning Profile Delivery Mechanism for Linux
Python Shell Makefile C
yarda Merge pull request #114 from olysonek/master
tuned-gui: Sort plugins based on their name
Latest commit 3e4d491 Jul 11, 2018
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contrib added upstart file to contrib Apr 28, 2015
doc Fix typos in TIPS.txt Sep 12, 2017
experiments Pass universal_newlines = True to Popen() Jan 14, 2018
icons Added tuned icon and desktop file for GUI Mar 22, 2016
libexec Use open() instead of file() to open files Jan 14, 2018
man profiles: added mssql profile Jun 5, 2018
profiles realtime-virtual-host: pin only the vcpu thread to isolated pCPU (v2) Jul 9, 2018
systemtap varnetload: more python3 fixes Jan 18, 2018
tests An attempt to port Tuned to python3 and keeping it python2 compatible Dec 21, 2017
tuned Fixed compatibility with python-3.7 Jul 4, 2018
.gitignore update gitignore Mar 12, 2012
00_tuned bootloader: add support for initrd overlays Mar 1, 2017
AUTHORS Added tuned icon and desktop file for GUI Mar 22, 2016
COPYING update GPLv2 license text (new FSF address) Mar 12, 2012
INSTALL Makefile: install to python3 destination by default Jan 14, 2018
Makefile Makefile: added support for python interpreter with arbitrary path Jul 9, 2018
README Update README Sep 12, 2017
TODO tuned-adm: Print log excerpt when changing profile Jun 11, 2018
bootcmdline bootloader: add support for initrd overlays Mar 1, 2017
com.redhat.tuned.gui.policy polkit: consolidated polkit action IDs to match DBus names Jun 8, 2016
com.redhat.tuned.policy Support sending logs over DBus Jun 11, 2018
dbus.conf Implemented polkit authorization Jun 10, 2016
modules.conf modules: Fix a comment in modules.conf Jul 10, 2017
recommend.conf Mark a comment in recommend.conf Jul 4, 2017
tuned-adm.bash bash-completion: added support for 'tuned-adm verify' Jul 10, 2015
tuned-adm.py tuned-adm: Fix a traceback when run without action specified Jul 10, 2018
tuned-gui.desktop Change desktop menu category for tuned-gui Jul 7, 2017
tuned-gui.glade Added tuned-gui Oct 1, 2014
tuned-gui.py tuned-gui: Sort plugins based on their name Jul 10, 2018
tuned-main.conf Increase udev monitor buffer size, make it configurable Aug 15, 2017
tuned.py An attempt to port Tuned to python3 and keeping it python2 compatible Dec 21, 2017
tuned.service Improve checking if we are rebooting or not Sep 8, 2017
tuned.spec spec: Simplify the Source0 tag Jul 10, 2018
tuned.tmpfiles Use /run instead of /var/run Oct 25, 2012


Tuned: Daemon for monitoring and adaptive tuning of system devices.

(This is tuned 2.0 with a new code base. If you are looking for the older
version, please check out branch '1.0' in our Git repository.)

How to use it

In Fedora, Red Hat Enterprise Linux, and their derivates install tuned package
(optionally tuned-utils, tuned-utils-systemtap, and tuned-profiles-compat):

# yum install tuned

After the installation, start the tuned service:

# systemctl start tuned

You might also want to run tuned whenever your machine starts:

# systemctl enable tuned

If the daemon is running you can easily control it using 'tuned-adm' command
line utility. This tool communicates with the daemon over DBus. Any user can
list the available profiles and see which one is active. But the profiles can
be switched only by root user or by any user with physical console allocated
on the machine (X11, physical tty, but no SSH).

To see the current active profile, run:

$ tuned-adm active

To list all available profiles, run:

$ tuned-adm list

To switch to a different profile, run:

# tuned-adm profile <profile-name>

Your profile choice is also written into /etc/tuned/active_profile and this
choice is used when the daemon is restarted (e.g. with the machine reboot).

To disable all tunings, run:
# tuned-adm off

# tuned-adm recommend
Recommend 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. They can be overridden by the user by
putting a file to /etc/tuned/recommend.d or a file named recommend.conf into
/etc/tuned (see tuned-adm(8) for more details). The default rules recommend
profiles targeted to the best performance or the balanced profile if unsure.

Available tunings

We are currenlty working on many new tuning features. Some are described in
the manual pages, some are yet undocumented.


The best way to contact the authors of the project is to use our mailing list:

In case you want to contact individual author, you will find the e-mail
address in every commit message in our Git repository:

You can also join #fedora-power IRC channel on Freenode.


Copyright (C) 2008-2016 Red Hat, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Full text of the license is enclosed in COPYING file.

The icon:

The Tuned icon was created by Mariia Leonova <mleonova@redhat.com> and it is
licensed under Creative Commons Attribution-ShareAlike 3.0 license