TUNED_PROFILES(7)

✨ TUNED_PROFILES(7) ✨

okay bestie, welcome to the TuneD profiles page — section 7 of the manual, the one and only 🎀

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💖 NAME 💖

tuned-profiles — the rundown on the basic TuneD profiles, no cap 🫶

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🌸 DESCRIPTION 🌸

So these are the base profiles, the ones that mostly ship inside the base tuned package. They're each targeted at different goals — mostly they're out here serving performance optimizations, but there are also profiles aimed at low power consumption, low latency, and other vibes too. You can lowkey deduce what a profile is about from its name alone, or you can just keep reading because the full description is literally right below. 💅

The profiles live in subdirectories below /usr/lib/tuned/profiles/. If you wanna customize them, copy them over to /etc/tuned/profiles/ and change them however you need. When profiles with the same name get loaded, /etc/tuned/profiles/ takes precedence. Which means — slay — you will not lose your customized profiles between TuneD updates. 😌

The power saving profiles contain settings that are typically not enabled by default, because they will noticeably impact the latency/performance of your system — as opposed to the power saving mechanisms that are enabled by default. Meanwhile the performance profiles disable the additional power saving mechanisms of TuneD, because those would negatively impact throughput or latency. It's giving tradeoffs, bestie. 🦋

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👑 PROFILES 👑

At the moment we're providing the following pre-defined profiles:

• balanced — it's the default profile, periodt. It provides balanced power saving and performance. At the moment it enables the 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 a 10 seconds timeout. And in case your system contains a supported Radeon graphics card (with enabled KMS), it configures it to automatic power saving. 💅
• balanced-battery — profile mainly used by tuned-ppd if the balanced profile is requested and the machine runs on battery. It's based on the balanced profile. It additionally sets energy_performance_preference to balance_power, enables amd-pstate core performance boost, and enables video panel_power_savings. 🔋
• powersave — maximal power saving, bestie. At the moment it enables USB autosuspend (in case the 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 a 10 seconds timeout). In case your system contains a 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 the 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 the throughput-performance profile. It additionally decreases virtual memory swappiness and increases dirty_ratio settings. 🧚
• virtual-host — profile optimized for virtual hosts, based on the 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. the 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. the 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. ☁️

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📁 FILES 📁

• /etc/tuned/profiles/*
• /usr/lib/tuned/profiles/*

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🫶 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)

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✨ 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>

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and that's the whole page, bestie — brought to you by the Fedora Power Management SIG, dated 30 Mar 2017, filing under TUNED_PROFILES(7). go forth and tune responsibly 💖✨🎀