Basic GPU usage monitoring
How do you monitor GPU usage on Linux? I am most interested in a "% GPU usage" and maybe "GPU temp" statistic, not so much very detailed stuff.
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This doesn't really answer the question as posed, but IMO it's a useful footnote:
If the primary interest is to monitor GPU usage specifically during a 3D application that uses Vulkan, MangoHud can provide a lot of data through its overlay. This is often more convenient than using system utilities.
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For a TUI solution: https://github.com/Syllo/nvtop
Install it and type nvtop in a terminal.
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If you are using KDE/Plasma, there should be a widget for the taskbar that shows GPU usage. Go to the same screen where you normally add widgets and look for a "system monitor" widget. In the configurations for it, there should be an option for monitoring GPU usage.
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