NAME

       tuned-main.conf - TuneD global configuration file

SYNOPSIS

       /etc/tuned/tuned-main.conf

DESCRIPTION

       This man page documents format of the TuneD global configuration file.  The tuned-main.conf file uses the
       ini-file format.

       daemon=BOOL
              This  defines  whether  TuneD will use daemon or not. It is boolean value.  It can be True or 1 if
              the daemon is enabled and False or 0 if disabled. It is not recommended to disable daemon, because
              many functions will not work without daemon, e.g.  there will be no D-Bus, no  settings  rollback,
              no hotplug support, no dynamic tuning, ...

       dynamic_tuning=BOOL
              This  defines  whether the dynamic tuning is enabled. It is boolean value.  It can be True or 1 if
              the dynamic tuning is enabled and False or 0 if disabled. In such case only the static tuning will
              be used. Please note if it is enabled here, it is still possible to  individually  disable  it  in
              plugins. It is only applicable if daemon is enabled.

       sleep_interval=INT
              TuneD daemon is periodically waken after INT seconds and checks for events. By default this is set
              to  1  second.  If  you have Python 2 interpreter with applied patch from Red Hat Bugzilla #917709
              this controls responsiveness time of TuneD to commands (i.e. if you request profile switch, it may
              take up to 1 second until TuneD reacts).  Increase this number for higher responsiveness times and
              more power savings (due to lower  number  of  wakeups).  In  case  you  have  unpatched  Python  2
              interpreter, this settings will have no visible effect, because the interpreter will poll 20 times
              per second. It is only applicable if daemon is enabled.

       update_interval=INT
              Update  interval  for  dynamic  tuning  (in seconds). TuneD daemon is periodically waken after INT
              seconds, updates its monitors, calculates new tuning parameters for enabled  plugins  and  applies
              the  changes.  Plugins  that have disabled dynamic tuning are not processed. By default the INT is
              set to 10 seconds. TuneD daemon doesn't periodically wake if dynamic tuning is  globally  disabled
              (see  dynamic_tuning)  or  this  setting set to 0.  This must be multiple of sleep_interval. It is
              only applicable if daemon is enabled.

       recommend_command=BOOL
              This controls whether recommend functionality will be enabled or not. It is boolean value. It  can
              be True or 1 if the recommend command is enabled and False or 0 if disabled. If disabled recommend
              command  will  be  not  available  in CLI, TuneD will not parse recommend.conf and will return one
              hardcoded profile (by default balanced). It is only applicable if daemon is  enabled.  By  default
              it's set to True.

       reapply_sysctl=BOOL
              This  controls  whether to reapply sysctl settings from /run/sysctl.d/*.conf, /etc/sysctl.d/*.conf
              and /etc/sysctl.conf after TuneD sysctl settings are applied. These  are  locations  supported  by
              sysctl  --system,  excluding  those  that  contain  sysctl  configuration files provided by system
              packages.  So if reapply_sysctl is set to True or 1, TuneD sysctl settings will not override user-
              provided system sysctl settings. If set to False or 0, TuneD sysctl settings will override  system
              sysctl settings. By default it's set to True.

       default_instance_priority=INT
              Default  instance (unit) priority. By default it's 0. Each unit has a priority which is by default
              preset to the INT. It can be overridden in the TuneD profile by the priority option.  TuneD  units
              are  processed in order defined by their priorities, i.e. unit with the lowest number is processed
              as the first.

EXAMPLE

         no_daemon = 0
         dynamic_tuning = 1
         sleep_interval = 1
         update_interval = 10
         recommend_command = 0
         reapply_sysctl = 1
         default_instance_priority = 0

FILES

       /etc/tuned/tuned-main.conf

SEE ALSO

       tuned(8)

AUTHOR

       Written by Jaroslav Škarvada <jskarvad@redhat.com>.

REPORTING BUGS

       Report bugs to https://bugzilla.redhat.com/.

Jaroslav Škarvada                                  15 Oct 2013                                tuned-main.conf(5)