1TUNED_PROFILES(7) tuned TUNED_PROFILES(7)
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6 tuned-profiles - description of basic tuned profiles
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10 These are the base profiles which are mostly shipped in the base tuned
11 package. They are targeted to various goals. Mostly they provide per‐
12 formance optimizations but there are also profiles targeted to low
13 power consumption, low latency and others. You can mostly deduce the
14 purpose of the profile by its name or you can see full description bel‐
15 low.
16 The power saving profiles contain settings that are typically not
18 enabled by default as they will noticeably impact the latency/perfor‐
19 mance of your system as opposed to the power saving mechanisms we have
20 enabled by default. On the other hand the performance profiles disable
21 the additional power saving mechanisms of tuned and ktune as they would
22 negatively impact the performance tuning, be it throughput or latency.
23
26 At the moment we're providing the following pre defined profiles:
27 default
30 This is the default powersaving profile. It is the lowest of the
31 available profiles in regard to powersaving and only enables CPU
32 and disk plugins of tuned. This is not the same as 'tuned-adm
33 off', where tuned and ktune services are disabled.
34 desktop-powersave
37 A powersaving profile directed at desktop systems. Enables ALPM
38 powersaving for SATA host adapters as well as the CPU, ethernet
39 and disk plugins of tuned.
40 server-powersave
43 A powersaving profile directed at server systems. Enables ALPM
44 powersaving for SATA host adapters, disables CD-ROM polling via
45 hal and activates the CPU and disk plugins of tuned.
46 laptop-ac-powersave
49 Medium powersaving profile directed at laptops running on AC.
50 Enables ALPM powersaving for SATA host adapters, WiFi power
51 saving as well as CPU, ethernet and disk plugins of tuned.
52 laptop-battery-powersave
55 Strong powersaving profile directed at laptops running on bat‐
56 tery. It activates all power saving mechanisms from the previous
57 profiles plus it enables multi core power savings scheduler for
58 low wakeup systems and makes sure the ondemand governor is
59 active and the AC97 audio power saving is enabled. This profile
60 can be used for any kind of system, not only laptops on battery
61 power in order to save the maximum amount of power. The tradeoff
62 for this profile is a noticeable impact on performance, specifi‐
63 cally latency of disk and network IO.
64 spindown-disk
67 Strong powersaving profile enabling aggresive disk spin-down.
68 Disk writeback values are increased and disk swappines is low‐
69 ered. CD drives polling and log syncing is disabled. All parti‐
70 tions are remounted with 'noatime' option. All tuned plugins are
71 disabled.
72 throughput-performance
75 Server profile for typical throughput performance tuning. Dis‐
76 ables tuned and ktune power saving mechanisms and enables sysctl
77 settings that improve the throughput performance of your disk
78 and network IO and switches to the deadline scheduler. CPU gov‐
79 ernor is set to performance.
80 latency-performance
83 Server profile for typical latency performance tuning. Disables
84 tuned and ktune power saving mechanisms and enables deadline IO
85 scheduler. CPU governor is set to performance.
86 enterprise-storage
89 Server profile for high disk throughput performace tuning. Dis‐
90 ables tuned and ktune power saving mechanisms and enables dead‐
91 line IO scheduler. Enables hugepages and disables disk barriers.
92 Disk readahead values are increased. CPU governor is set to per‐
93 formance.
94 virtual-guest
97 Profile optimized for virtual guests based on enterprise-storage
98 profile. It additionally decreases virtual memory swapiness.
99 virtual-host
102 Profile optimized for virtual hosts based on enterprise-storage
103 profile. It additionally decreases virtual memory swapiness and
104 enables more aggresive writeback of dirty pages.
105
108 /etc/tune-profiles/*
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112 tuned(8) tuned-adm(1) tuned-profiles-sap(7) tuned-profiles-sap-hana(7)
113 tuned-profiles-oracle(7)
114
116 Marcela Mašláňová <mmaslano@redhat.com> Phil Knirsch <pknirsch@red‐
117 hat.com> Jaroslav Škarvada <jskarvad@redhat.com>
118Fedora Power Management SIG 23 Sep 2014 TUNED_PROFILES(7)