7373cecf3b
During profile loading if the device is assigned to the instance but it isn't processed yet by the main thread and the remove event fires, TuneD may try to remove the device from the free list, because it wrongly assumes that the device is unassigned. With this workaround it shouldn't traceback in such cases, but there may be still some errors when it tries to tune the removed device in the main thread. We currently cannot do much about it. The add/rename udev events should be mostly safe, because there are two threads - the main thread and the udev callback thread. The udev callback thread is processing udev events sequentially one by one and it shouldn't break the main thread data when processing the add/rename events. It would be better to have one worker thread for it, but it would require quite a big redesign. Also the cleanup phase was improved, because now it firstly unsubscribes the udev events and then it continues with the cleanup which should minimise problems of udev events firing during the profile unload. Resolves: RHEL-83827 Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com> |
||
|---|---|---|
| .fmf | ||
| .github/workflows | ||
| contrib | ||
| doc | ||
| experiments | ||
| icons | ||
| libexec | ||
| man | ||
| profiles | ||
| systemtap | ||
| tests | ||
| tuned | ||
| .gitignore | ||
| .packit.yaml | ||
| 00_tuned | ||
| 92-tuned.install | ||
| AUTHORS | ||
| bootcmdline | ||
| ci.fmf | ||
| com.redhat.tuned.policy | ||
| compile_plugin_docs.py | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| dbus.conf | ||
| DCO | ||
| functions | ||
| INSTALL | ||
| Makefile | ||
| modules.conf | ||
| README.md | ||
| recommend.conf | ||
| TODO | ||
| tuned-adm.bash | ||
| tuned-adm.py | ||
| tuned-gui.desktop | ||
| tuned-gui.glade | ||
| tuned-gui.py | ||
| tuned-main.conf | ||
| tuned-ppd.py | ||
| tuned.py | ||
| tuned.service | ||
| tuned.spec | ||
| tuned.tmpfiles | ||
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
TuneD is incompatible with cpupower and power-profiles-daemon. If you
have these services, uninstall or disable them.
On Fedora, Red Hat Enterprise Linux, and their derivatives: install the tuned package
(optionally tuned-utils, tuned-utils-systemtap, and tuned-profiles-compat):
# dnf install tuned
After installation, start the tuned service:
# systemctl start tuned
You likely should run tuned whenever your machine boots:
# systemctl enable tuned
When the daemon is running you can easily control it using the tuned-adm
utility. This tool communicates with the daemon over DBus. Any user can
list the available profiles and see which one is active. The active profile 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>
The enabled profile is persisted into /etc/tuned/active_profile, which
is read when the daemon starts or is restarted.
To disable all tunings, run:
# tuned-adm off
To show information/description of given profile or current profile if no profile is specified, run:
# tuned-adm profile_info
To verify current profile against system settings, run:
# tuned-adm verify
To enable automatic profile selection, run:
# tuned-adm auto_profile
To show the current profile selection mode, run:
# tuned-adm profile_mode
To recommend a profile for a given system, run:
# tuned-adm recommend
Currently only static detection is
implemented - it decides according to data in /etc/system-release-cpe and
the output of virt-what. 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
creating a file in /etc/tuned/recommend.d or a file named recommend.conf in
/etc/tuned. See the tuned-adm(8) man page for details). The default rules
recommend profiles targeted to the best performance or the balanced profile if unsure.
Available tunings
We are currently working on many new tuning features. Some are described in the manual pages, some are yet undocumented.
Authors
The best way to contact the authors of the project is to use our mailing list: power-management@lists.fedoraproject.org
If you want to contact an individual author, you will find their e-mail address in every commit message in our Git repository: https://github.com/redhat-performance/tuned.git
You can also join the #fedora-power IRC channel on Freenode.
Web page: https://tuned-project.org/
Contributing
See the file CONTRIBUTING.md for guidelines for contributing.
License
Copyright (C) 2008-2021 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 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 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 Developer Certificate of Origin, distributed in the file 'DCO' is licensed differently, see the file for the text of the license.
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 (http://creativecommons.org/licenses/by-sa/3.0/legalcode).