bionic (8) tuned-adm.8.gz

Provided by: tuned_2.9.0-1_all bug

NAME

       tuned-adm - command line tool for switching between different tuning profiles

SYNOPSIS

       tuned-adm [list | active | profile [profile] | off | verify | recommend]

DESCRIPTION

       This command line utility allows you to switch between user definable tuning profiles. Several predefined
       profiles are already included. You can even create your own profile, either based on one of the  existing
       ones  by  copying  it  or  make  a  completely  new one. The distribution provided profiles are stored in
       subdirectories below /usr/lib/tuned and the user defined profiles in subdirectories below /etc/tuned.  If
       there are profiles with the same name in both places, user defined profiles have precedence.

OPTIONS

       list   List all available profiles.

       active Show current active profile.

       profile [PROFILE_NAME]
              Switches  to  the  given  profile. If none is given then all available profiles are listed. If the
              profile given is not valid the command gracefully exits without performing any operation.

       verify Verifies current profile against system settings.  Outputs  information  whether  system  settings
              match  current  profile  or  not  (e.g.  somebody modified a sysfs/sysctl value by hand). Detailed
              information about what is checked, what value is set and what value is expected can  be  found  in
              the log.

       recommend
              Recommend  a 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 the file /usr/lib/tuned/recommend.d/50-tuned.conf. The default rules
              recommend profiles targeted to the best performance, or the balanced profile if unsure.

              The default rules can be overridden by the user  by  putting  a  file  named  recommend.conf  into
              /etc/tuned,   or   by   creating   a  file  in  the  /etc/tuned/recommend.d  directory.  The  file
              /etc/tuned/recommend.conf  is  evaluated  first.  If  no  match  is  found,  the  files   in   the
              /etc/tuned/recommend.d  directory  are  merged  with  the  files in the /usr/lib/tuned/recommend.d
              directory  (if  there  is  a  file  with  the  same  name  in  both  directories,  the  one   from
              /etc/tuned/recommend.d  is  used)  and  the  files  are evaluated in alphabetical order. The first
              matching entry is used.

       off    Unload tunings.

FILES

       /etc/tuned/*
       /usr/lib/tuned/*

SEE ALSO

       tuned(8)     tuned-conf(5)     tuned-profiles(7)      tuned-profiles-atomic(7)      tuned-profiles-sap(7)
       tuned-profiles-sap-hana(7) tuned-profiles-oracle(7) tuned-profiles-realtime(7) tuned-profiles-nfv-host(7)
       tuned-profiles-nfv-guest(7) tuned-profiles-compat(7)

AUTHOR

       Jaroslav Škarvada <jskarvad@redhat.com>
       Jan Kaluža <jkaluza@redhat.com>
       Jan Včelák <jvcelak@redhat.com>
       Marcela Mašláňová <mmaslano@redhat.com>
       Phil Knirsch <pknirsch@redhat.com>