Provided by: tuned_2.24.1-1ubuntu1_all 
NAME
tuned-profiles - description of basic TuneD profiles
DESCRIPTION
These are the base profiles which are mostly shipped in the base tuned package. They are targeted to
various goals. Mostly they provide performance optimizations but there are also profiles targeted to low
power consumption, low latency and others. You can mostly deduce the purpose of the profile by its name
or you can see full description below.
The profiles are stored in subdirectories below /usr/lib/tuned/profiles/. If you need to customize the
profiles, you can copy them to /etc/tuned/profiles/ and modify them as you need. When loading profiles
with the same name, /etc/tuned/profiles/ takes precedence. In such case you will not lose your customized
profiles between TuneD updates.
The power saving profiles contain settings that are typically not enabled by default as they will
noticeably impact the latency/performance of your system as opposed to the power saving mechanisms that
are enabled by default. On the other hand the performance profiles disable the additional power saving
mechanisms of TuneD as they would negatively impact throughput or latency.
PROFILES
At the moment we're providing the following pre-defined profiles:
balanced
It is the default profile. It provides balanced power saving and performance. At the moment it
enables CPU and disk plugins of TuneD and it makes sure the conservative governor is active (if
supported by the current cpufreq driver). It enables ALPM power saving for SATA host adapters and
sets the link power management policy to medium_power. It also sets the CPU energy performance
bias to normal. It also enables AC97 audio power saving or (it depends on your system) HDA-Intel
power savings with 10 seconds timeout. In case your system contains supported Radeon graphics card
(with enabled KMS) it configures it to automatic power saving.
balanced-battery
Profile mainly used by tuned-ppd if balanced profile is requested and machine runs on battery.
It's based on the balanced profile. It additionaly sets energy_performance_preference to
balance_power, enables amd-pstate core performance boost, and enables video panel_power_savings.
powersave
Maximal power saving, at the moment it enables USB autosuspend (in case environment variable
USB_AUTOSUSPEND is set to 1), enables ALPM power saving for SATA host adapters and sets the link
power management policy to min_power. It also enables WiFi power saving and makes sure the
ondemand governor is active (if supported by the current cpufreq driver). It sets the CPU energy
performance bias to powersave. It also enables AC97 audio power saving or (it depends on your
system) HDA-Intel power savings (with 10 seconds timeout). In case your system contains supported
Radeon graphics card (with enabled KMS) it configures it to automatic power saving. On Asus Eee
PCs dynamic Super Hybrid Engine is enabled.
throughput-performance
Profile for typical throughput performance tuning. Disables power saving mechanisms and enables
sysctl settings that improve the throughput performance of your disk and network IO. CPU governor
is set to performance and CPU energy performance bias is set to performance. Disk readahead values
are increased.
accelerator-performance
This profile contains the same tuning as the throughput-performance profile. Additionally, it
locks the CPU to low C states so that the latency is less than 100us. This improves the
performance of certain accelerators, such as GPUs.
latency-performance
Profile for low latency performance tuning. Disables power saving mechanisms. CPU governor is set
to performance and locked to the low C states (by PM QoS). CPU energy performance bias to
performance.
network-throughput
Profile for throughput network tuning. It is based on the throughput-performance profile. It
additionally increases kernel network buffers.
network-latency
Profile for low latency network tuning. It is based on the latency-performance profile. It
additionally disables transparent hugepages, NUMA balancing and tunes several other network
related sysctl parameters.
desktop
Profile optimized for desktops based on balanced profile. It additionally enables scheduler
autogroups for better response of interactive applications.
hpc-compute
Profile optimized for high-performance computing. It is based on the latency-performance profile.
virtual-guest
Profile optimized for virtual guests based on throughput-performance profile. It additionally
decreases virtual memory swappiness and increases dirty_ratio settings.
virtual-host
Profile optimized for virtual hosts based on throughput-performance profile. It additionally
enables more aggressive writeback of dirty pages.
intel-sst
Profile optimized for systems with user-defined Intel Speed Select Technology configurations. This
profile is intended to be used as an overlay on other profiles (e.g. cpu-partitioning profile),
example: tuned-adm profile cpu-partitioning intel-sst
optimize-serial-console
Profile which tunes down I/O activity to the serial console by reducing the printk value. This
should make the serial console more responsive. This profile is intended to be used as an overlay
on other profiles (e.g. throughput-performance profile), example: tuned-adm profile
throughput-performance optimize-serial-console
aws Profile optimized for AWS EC2 instances. It is based on the throughput-performance profile.
FILES
/etc/tuned/profiles/*
/usr/lib/tuned/profiles/*
SEE ALSO
tuned(8) tuned-adm(8) 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-cpu-partitioning(7) tuned-profiles-compat(7)
tuned-profiles-postgresql(7) tuned-profiles-openshift(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>
Fedora Power Management SIG 30 Mar 2017 TUNED_PROFILES(7)