Apply ready-made or custom performance profiles to a Linux host with a single command. 01.07.2026 | reading time: 3 min tuned-adm is the command-line front end to the tuned daemon that applies performance profiles to a Linux host, letting the administrator switch between presets for servers, desktops or virtual guests quickly and safely. Hands-on demo Try this quick sequence on a test machine to see how tuned-adm works; it lists available profiles, shows the active profile and switches profiles in a single step: ``` $ sudo tuned-adm list Available profiles: - balanced - desktop - latency-performance - network-latency - powersave - throughput-performance - virtual-host - virtual-guest Current active profile: balanced $ sudo tuned-adm profile throughput-performance Switching to profile "throughput-performance" $ sudo tuned-adm active Current active profile: throughput-performance ``` Create a custom profile Make a tailored profile under /etc/tuned to persist changes and keep them outside distribution updates; for example create a profile that forces the CPU governor and lowers swappiness: ``` $ sudo mkdir -p /etc/tuned/myserver $ sudo tee /etc/tuned/myserver/tuned.conf > /dev/null <<'EOF' [main] summary=My server tuning profile [cpu] governor=performance [sysctl] vm.swappiness = 10 EOF $ sudo tuned-adm profile myserver Switching to profile "myserver" ``` Other knobs and caveats Use `tuned-adm recommend` to let tuned suggest a profile based on detected hardware, and remember that tuned is a daemon (check `systemctl status tuned`) that modifies governors, sysctls, IRQ affinity and scheduler hints; always test profile changes during maintenance windows because settings like governor=performance and altered I/O tunables can increase power and heat and may change latency characteristics unexpectedly. Where tuned fits in tuned coordinates many low-level helpers but does not replace them: it calls or configures kernel parameters, interacts with CPU frequency tools and can include scripts; think of tuned as the profile manager that applies a curated bundle of changes for a use case such as throughput, low-latency or virtual-host. Next steps for the reader Experiment with prebuilt profiles, craft minimal custom profiles for a single parameter, and use tuned-adm on a disposable VM before touching production; if he wants to formalize knowledge, studying for CompTIA Linux+ or LPIC-1 and using intensive exam preparation like bitsandbytes.academy will solidify those practical skills. Join Bits & Bytes Academy First class LINUX exam preparation. utilities infrastructure processes boot-process virtualization Dieser Artikel wurde mithilfe von KI erstellt.
