101 lines
3.3 KiB
Text
101 lines
3.3 KiB
Text
Tuned: Daemon for monitoring and adaptive tuning of system devices.
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(This is tuned 2.0 with a new code base. If you are looking for the older
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version, please check out branch '1.0' in our Git repository.)
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How to use it
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-------------
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In Fedora, Red Hat Enterprise Linux, and their derivates install tuned package
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(optionally tuned-utils, tuned-utils-systemtap, and tuned-profiles-compat):
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# yum install tuned
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After the installation, start the tuned service:
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# systemctl start tuned
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You might also want to run tuned whenever your machine starts:
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# systemctl enable tuned
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If the daemon is running you can easily control it using 'tuned-adm' command
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line utility. This tool communicates with the daemon over DBus. Any user can
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list the available profiles and see which one is active. But the profiles can
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be switched only by root user or by any user with physical console allocated
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on the machine (X11, physical tty, but no SSH).
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To see the current active profile, run:
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$ tuned-adm active
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To list all available profiles, run:
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$ tuned-adm list
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To switch to a different profile, run:
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# tuned-adm profile <profile-name>
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Your profile choice is also written into /etc/tuned/active_profile and this
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choice is used when the daemon is restarted (e.g. with the machine reboot).
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To disable all tunings, run:
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# tuned-adm off
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# tuned-adm recommend
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Recommend profile suitable for your system. Currently only static detection is
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implemented - it decides according to data in /etc/system-release-cpe and
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virt-what output. The rules for autodetection are defined in the file
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/usr/lib/tuned/recommend.d/50-tuned.conf. They can be overridden by the user by
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putting a file to /etc/tuned/recommend.d or a file named recommend.conf into
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/etc/tuned (see tuned-adm(8) for more details). The default rules recommend
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profiles targeted to the best performance or the balanced profile if unsure.
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Available tunings
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-----------------
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We are currenlty working on many new tuning features. Some are described in
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the manual pages, some are yet undocumented.
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Authors
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-------
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The best way to contact the authors of the project is to use our mailing list:
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power-management@lists.fedoraproject.org
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In case you want to contact individual author, you will find the e-mail
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address in every commit message in our Git repository:
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https://github.com/redhat-performance/tuned.git
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You can also join #fedora-power IRC channel on Freenode.
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License
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-------
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Copyright (C) 2008-2016 Red Hat, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Full text of the license is enclosed in COPYING file.
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The icon:
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The Tuned icon was created by Mariia Leonova <mleonova@redhat.com> and it is
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licensed under Creative Commons Attribution-ShareAlike 3.0 license
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(http://creativecommons.org/licenses/by-sa/3.0/legalcode).
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