Afaik there is no way to view usage for nouveau yet
this post was submitted on 13 May 2024
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I see. I'm quite surprised with the current developments of NVK. It already has a better Wayland experience and runs mid-range games great. Though I'm going back to proprietary driver for now and would like to revisit NVK in the near future.
I don't have a Nvidia GPU, so I can't test it, maybe Mission Center works.
From their GitLab readme:
Monitor overall GPU usage, video encoder and decoder usage, memory usage and power consumption, powered by the popular NVTOP project
That looks like a nice project. Though sadly didn't work for NVK. I'm assuming it would work with a proprietary driver since it's based on nvtop.
Does nvk expose anything thru sysfs?
Take a look at "/sys/class/drm/card*/device/"
It says "nouveau" on uevent but that's all I guess. AMD driver is also open source, how does that work for it? Nvidia recently opened the kernel parts of the driver, it's possible that my system haven't got those parts yet. Maybe there is still time for NVK. All I can say is, Wayland experience is better with NVK comparing to proprietary driver.
AMD drivers expose API thru sysfs and system monitors just parse that. Seems like nouveau does not expose anything like that. You can still put a thumbsup on nvtop issue about nouveau support.