bionic (5) tuned-main.conf.5.gz

Provided by: tuned_2.9.0-1_all bug

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 the /etc/sysctl.conf, /etc/sysctl.d/*.conf,
              /usr/lib/sysctl.d/*.conf,          /usr/local/lib/sysctl.d/*.conf,           /lib/sysctl.d/*.conf,
              /run/sysctl.d/*.conf,  i.e. all locations supported by sysctl --system after Tuned sysctl settings
              are applied, i.e. if set to True or 1 Tuned  sysctl  settings  will  not  override  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/.