1TUNED_ADM(8) tuned TUNED_ADM(8)
2
6 tuned-adm - command line tool for switching between different tuning
7 profiles
8
10 tuned-adm [list | active | profile [profile]... | off | verify | recom‐
11 mend]
12
15 This command line utility allows you to switch between user definable
16 tuning profiles. Several predefined profiles are already included. You
17 can even create your own profile, either based on one of the existing
18 ones by copying it or make a completely new one. The distribution pro‐
19 vided profiles are stored in subdirectories below /usr/lib/tuned and
20 the user defined profiles in subdirectories below /etc/tuned. If there
21 are profiles with the same name in both places, user defined profiles
22 have precedence.
23
26 list List all available profiles.
27 profiles List all available profiles.
30 plugins List all available plugins.
33 -v, --verbose List plugin's configuration options and
36 their hints.
37 active Show current active profile.
40 profile [PROFILE_NAME]...
43 Switches to the given profile. If more than one profile is
44 given, the profiles are merged (in case of conflicting settings,
45 the setting from the last profile is used) and the resulting
46 profile is applied. If no profile is given, then all available
47 profiles are listed. If the profile given is not valid, the com‐
48 mand gracefully exits without performing any operation.
49 verify Verifies current profile against system settings. Outputs infor‐
52 mation whether system settings match current profile or not
53 (e.g. somebody modified a sysfs/sysctl value by hand). Detailed
54 information about what is checked, what value is set and what
55 value is expected can be found in the log.
56 recommend
59 Recommend a profile suitable for your system. Currently only
60 static detection is implemented - it decides according to data
61 in /etc/system-release-cpe and virt-what output. The rules for
62 autodetection are defined in the file /usr/lib/tuned/recom‐
63 mend.d/50-tuned.conf. The default rules recommend profiles tar‐
64 geted to the best performance, or the balanced profile if
65 unsure.
66 The default rules can be overridden by the user by putting a
68 file named recommend.conf into /etc/tuned, or by creating a file
69 in the /etc/tuned/recommend.d directory. The file
70 /etc/tuned/recommend.conf is evaluated first. If no match is
71 found, the files in the /etc/tuned/recommend.d directory are
72 merged with the files in the /usr/lib/tuned/recommend.d direc‐
73 tory (if there is a file with the same name in both directories,
74 the one from /etc/tuned/recommend.d is used) and the files are
75 evaluated in alphabetical order. The first matching entry is
76 used.
77 off Unload tunings.
80
83 /etc/tuned/*
84 /usr/lib/tuned/*
85
88 tuned(8) tuned.conf(5) tuned-profiles(7) tuned-profiles-atomic(7)
89 tuned-profiles-sap(7) tuned-profiles-sap-hana(7) tuned-profiles-ora‐
90 cle(7) tuned-profiles-realtime(7) tuned-profiles-nfv-host(7) tuned-pro‐
91 files-nfv-guest(7) tuned-profiles-compat(7) tuned-profiles-post‐
92 gresql(7)
93
95 Jaroslav Škarvada <jskarvad@redhat.com>
96 Jan Kaluža <jkaluza@redhat.com>
97 Jan Včelák <jvcelak@redhat.com>
98 Marcela Mašláňová <mmaslano@redhat.com>
99 Phil Knirsch <pknirsch@redhat.com>
100Fedora Power Management SIG 30 Mar 2017 TUNED_ADM(8)