New updates are being developed for the Linux kernel to improve how video memory (VRAM) is managed, especially for gaming performance. The main goal is to ensure that active games get priority access to GPU memory over background applications.
The work is being led by developer Natalie Vock, who is introducing patches that enhance memory handling within the system. These include improvements to DRM device memory cgroup controls and updates to TTM memory management, which governs how memory is allocated and freed.
Additional Tools for Better Performance
Alongside kernel-level improvements, new user-space tools are also being introduced to boost performance. One such tool, dmemcg-booster, runs as a systemd service and helps manage memory limits while prioritizing active games.
Another tool, plasma-foreground-booster, is designed for KDE Plasma users. It ensures that the application currently in focus—such as a full-screen game—gets priority access to VRAM. For users on other desktop environments, similar results can be achieved using updated versions of Gamescope.
Prioritizing the Active Game
Together, these updates aim to make sure that the game you’re actively playing gets first access to dedicated video memory. This helps prevent game data from being pushed into system RAM, which can lead to performance drops.
On systems with around 8GB of VRAM, this issue is quite common under current settings, where background processes may compete equally with games for memory resources.
Early Results Show Promise
According to a blog post by Natalie Vock, early testing has already shown noticeable improvements. For example, smoother gameplay was achieved while running Cyberpunk 2077 through Steam Play on a Linux system equipped with an 8GB graphics card.
What’s Next
For now, users can try these improvements through CachyOS, where the patches and tools are already available.
In the future, these updates are expected to become part of the main Linux kernel and be adopted more widely across desktop environments, making better VRAM management accessible to more Linux gamers.
