Introduce per process GPU usage metrics

[stsdc]

This is the modified #490 to adopt recent ColumnView changes.

• Prevent showing GPU column on unsupported hardware

Needs testing on hardware.

• Intel (i915 driver)
• Intel (Xe driver)
• AMD Radeon
• AMD Radeon (integrated)
• nVidia
• ARM (optional)

[stsdc]

Somehow the new test is not working on CI, but locally it does

# Start of Monitor tests
# Start of Managers tests
# GLib-GIO-DEBUG: _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ‘gio-vfs’
# DEBUG: ProcessDRM.vala:88: Found DRM file: /home/stsdc/projects/elementary/monitor/build/tests/assets/fdinfo/21
ok 1 /Monitor/Managers/ProcessDRM
# End of Managers tests
# End of Monitor tests

This PR is basically the same as closed #490, but I got it working for both Xe and i915 Intel GPU drivers, and, of course, amdgpu.
Since there is no support for nVidia GPU right now, I have decided to hide GPU column for unsuppported hardware.
I have used GLib.Once<Resources> to get the gpu_list from to check if we detected any GPU.

[vjr]

@stsdc works on my PC with AMD dGPU. i have another PC with both iGPU and dGPU have not yet tested on that but would it be easy to add a tooltip for each process GPU percentage item label to simply say Running on integrated GPU or Running on discrete GPU something like that? Or maybe in a future PR - which I can take a stab at? :-)

Sorry, I'm unfamiliar/unable to look at why that CI test is failing.

[stsdc]

I have disabled the test for ProcessDRM.vala since it is failing CI. Will try to fix it in another PR.

[flodavid]

"The nVidia TU106 [GeForce RTX 2060 Rev. A] GPU was detected, but is not yet supported".
Also, there are many processes with "-1%" GPU usage. Others are at 0%.

[stsdc]

"The nVidia TU106 [GeForce RTX 2060 Rev. A] GPU was detected, but is not yet supported". Also, there are many processes with "-1%" GPU usage. Others are at 0%.

That's weird, it shouldn't show the GPU column if the GPU is not detected. Do you have another GPU running?

[vjr]

@stsdc i just now tried on my ryzen PC with iGPU and a AMD 7800XT dGPU, both charts show in the system view but only the dGPU shows utilisation, the iGPU is always 0% even if I open apps to run on it. Also, the process view GPU column is always 0% for processes that use either GPU.

[stsdc]

@stsdc i just now tried on my ryzen PC with iGPU and a AMD 7800XT dGPU, both charts show in the system view but only the dGPU shows utilisation, the iGPU is always 0% even if I open apps to run on it. Also, the process view GPU column is always 0% for processes that use either GPU.

could you run Monitor in debug mode and show the logs?

Also may i ask you to screenshot both views?

[flodavid]

That's weird, it shouldn't show the GPU column if the GPU is not detected. Do you have another GPU running?

Just one GPU and my CPU does not have integrated GPU

[stsdc]

That's weird, it shouldn't show the GPU column if the GPU is not detected. Do you have another GPU running?

Just one GPU and my CPU does not have integrated GPU

• May I ask you to start Monitor with G_MESSAGES_DEBUG=all ./src/io.elementary.monitor and attach the output here?
• I expect, in in the output, you will find lines like ** (io.elementary.monitor:299221): DEBUG: 23:54:14.614: ProcessDRM.vala:88: Found DRM file: /proc/117802/fdinfo/19. Could you paste the content of that file here?

[vjr]

@stsdc i just now tried on my ryzen PC with iGPU and a AMD 7800XT dGPU, both charts show in the system view but only the dGPU shows utilisation, the iGPU is always 0% even if I open apps to run on it. Also, the process view GPU column is always 0% for processes that use either GPU.

could you run Monitor in debug mode and show the logs?

Also may i ask you to screenshot both views?

@stsdc i've opened a branch targeting this PR here: #574 with some observed hopefully improvements for you to consider, thanks!

i was mistaken that iGPU was always zero percent, upon closer observation, it looked like ALL per-process CPU and GPU percents were zero but that was just because there are so many processes and many consume under 1% such as 0.05% so i made that change if you think it's useful.