101 lines
4.1 KiB
Groff
101 lines
4.1 KiB
Groff
.TH "tuned-main.conf" "5" "15 Oct 2013" "Jaroslav Škarvada" "tuned-main.conf file format description"
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.SH NAME
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tuned\-main.conf - Tuned global configuration file
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.SH SYNOPSIS
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.B /etc/tuned/tuned\-main.conf
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.SH DESCRIPTION
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This man page documents format of the Tuned global configuration file.
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The \fItuned\-main.conf\fR file uses the ini\-file format.
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.TP
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.BI daemon= BOOL
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This defines whether Tuned will use daemon or not. It is boolean value.
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It can be \fBTrue\fR or \fB1\fR if the daemon is enabled and
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\fBFalse\fR or \fB0\fR if disabled. It is not recommended to disable
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daemon, because many functions will not work without daemon, e.g.
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there will be no D-Bus, no settings rollback, no hotplug support,
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no dynamic tuning, ...
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.TP
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.BI dynamic_tuning= BOOL
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This defines whether the dynamic tuning is enabled. It is boolean value.
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It can be \fBTrue\fR or \fB1\fR if the dynamic tuning is enabled and
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\fBFalse\fR or \fB0\fR if disabled. In such case only the static tuning
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will be used. Please note if it is enabled here, it is still possible
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to individually disable it in plugins. It is only applicable if
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\fBdaemon\fR is enabled.
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.TP
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.BI sleep_interval= INT
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Tuned daemon is periodically waken after \fIINT\fR seconds and checks
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for events. By default this is set to 1 second. If you have Python 2
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interpreter with applied patch from Red Hat Bugzilla #917709 this
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controls responsiveness time of Tuned to commands (i.e. if you
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request profile switch, it may take up to 1 second until Tuned reacts).
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Increase this number for higher responsiveness times and more power
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savings (due to lower number of wakeups). In case you have unpatched
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Python 2 interpreter, this settings will have no visible effect,
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because the interpreter will poll 20 times per second. It is only
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applicable if \fBdaemon\fR is enabled.
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.TP
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.BI update_interval= INT
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Update interval for dynamic tuning (in seconds). Tuned daemon is periodically
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waken after \fIINT\fR seconds, updates its monitors, calculates new tuning
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parameters for enabled plugins and applies the changes. Plugins that have
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disabled dynamic tuning are not processed. By default the \fIINT\fR is set
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to 10 seconds. Tuned daemon doesn't periodically wake if dynamic tuning is
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globally disabled (see \fBdynamic_tuning\fR) or this setting set to 0.
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This must be multiple of \fBsleep_interval\fR. It is only applicable if
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\fBdaemon\fR is enabled.
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.TP
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.BI recommend_command= BOOL
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This controls whether recommend functionality will be enabled or not. It is
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boolean value. It can be \fBTrue\fR or \fB1\fR if the recommend command is
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enabled and \fBFalse\fR or \fB0\fR if disabled. If disabled \fBrecommend\fR
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command will be not available in CLI, tuned will not parse \fIrecommend.conf\fR
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and will return one hardcoded profile (by default \fBbalanced\fR). It is only
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applicable if \fBdaemon\fR is enabled. By default it's set to \fBTrue\fR.
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.TP
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.BI reapply_sysctl= BOOL
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This controls whether to reapply sysctl settings from the \fI/etc/sysctl.conf\fR,
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\fI/etc/sysctl.d/*.conf\fR, \fI/usr/lib/sysctl.d/*.conf\fR,
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\fI/usr/local/lib/sysctl.d/*.conf\fR, \fI/lib/sysctl.d/*.conf\fR,
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\fI/run/sysctl.d/*.conf\fR, i.e. all locations supported by
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\fBsysctl --system\fR after Tuned sysctl settings are applied, i.e. if
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set to \fBTrue\fR or \fB1\fR Tuned sysctl settings will not override system
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sysctl settings. If set to \fBFalse\fR or \fB0\fR Tuned sysctl settings will
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override system sysctl settings. By default it's set to \fBTrue\fR.
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.TP
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.BI default_instance_priority= INT
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Default instance (unit) priority. By default it's \fB0\fR. Each unit has a
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priority which is by default preset to the \fIINT\fR. It can be overridden
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in the Tuned profile by the \fBpriority\fR option. Tuned units are processed
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in order defined by their priorities, i.e. unit with the lowest number is
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processed as the first.
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.SH EXAMPLE
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.nf
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no_daemon = 0
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dynamic_tuning = 1
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sleep_interval = 1
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update_interval = 10
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recommend_command = 0
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reapply_sysctl = 1
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default_instance_priority = 0
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.fi
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.SH FILES
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.I /etc/tuned/tuned\-main.conf
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.SH "SEE ALSO"
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.LP
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tuned(8)
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.SH AUTHOR
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Written by Jaroslav Škarvada <jskarvad@redhat.com>.
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.SH REPORTING BUGS
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Report bugs to https://bugzilla.redhat.com/.
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