Tuning Profile Delivery Mechanism for Linux
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Currently it is substitution for the rtctl tool, but there are small differences in the syntax. Format for the rules is: group.GROUPNAME=RULE_PRIO:SCHED:PRIO:AFFINITY:REGEX where RULE_PRIO defines tuned priority of the rule. Rules are sorted according to priority. This is needed for inheritence to be able to reorder previously defined rule. For same RULE_PRIO, rules should be processed in the order there were defined (but this is Python interpreter dependant). To disable inherited rule for GROUPNAME use: group.GROUPNAME= SCHED must be one of: 'f' for FIFO, 'b' for batch, 'r' for round robin, 'o' for other, '*' means not to change. AFFINITY is a hex number, see taskset(1) for details about number of CPUs. The '*' means not to change. REGEX is Python regex. It must match against output of ps -eo cmd Any given process name may match more than one group. Default priority and scheduling policy are taken from the last matching rege. You need to write 'group.' prefix before your group name. This is because there may be added other parameters to the plugin later. Example of usage: [scheduler] group.kthreads=0:*:1:*:\[.*\]$ group.watchdog=0:f:99:*:\[watchdog.*\] Resolves: rhbz#1100826 Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com> |
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| doc | ||
| experiments | ||
| libexec | ||
| man | ||
| profiles | ||
| systemtap | ||
| tests | ||
| tuned | ||
| .gitignore | ||
| 00_tuned | ||
| AUTHORS | ||
| bootcmdline | ||
| COPYING | ||
| dbus.conf | ||
| INSTALL | ||
| Makefile | ||
| README | ||
| recommend.conf | ||
| tuned-adm.py | ||
| tuned-main.conf | ||
| tuned.bash | ||
| 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 ------------- 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> And to disable all tunings, run: # 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 recommend.conf in profile directory. They can be overriden by user by putting the recommend.conf into /etc/tuned. The default rules recommends profiles targeted to the best performance or balanced profile if unsure. # tuned-adm off 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). Available tunings ----------------- We are currenlty 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 In case you want to contact individual author, you will find the e-mail address in every commit message in our Git repository: http://git.fedorahosted.org/cgit/tuned.git You can also join #fedora-power IRC channel on Freenode. License ------- Copyright (C) 2008-2013 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.