The Latest Feral's Gamemode from Git

GameMode is a daemon/lib combo for Linux that allows games to request a set of optimisations be temporarily applied to the host OS.

The design has a clear-cut abstraction between the host daemon and library (gamemoded and libgamemode), and the client loaders (libgamemodeauto and gamemode_client.h) that allows for safe use without worrying about whether the daemon is installed or running. This design also means that while the host library currently relies on systemd for exchanging messages with the daemon, it's entirely possible to implement other internals that still work with the same clients.

GameMode was designed primarily as a stop-gap solution to problems with the Intel and AMD CPU powersave or ondemand governors, but is now able to launch custom user defined plugins, and is intended to be expanded further, as there are a wealth of automation tasks one might want to apply.

GameMode can leverage support for soft real time mode if the running kernel supports SCHED_ISO. This adjusts the scheduling of the game to real time without sacrificing system stability by starving other processes.

GameMode adjusts the nice priority of games to -4 by default to give it a slight IO and CPU priority over other background processes. This only works if your user is permitted to adjust priorities within the limits configured by PAM. See /etc/security/limits.conf.