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How can I tell if my GPU is being utilized properly? (programming.dev)

submitted 1 week ago by [email protected] to c/[email protected]

69 comments fedilink hide all child comments

I purchased a system76 Thelio Mira Elite With a AMD Radeon RX 7900 XT. I kinda regret not going with Nvidia at this point but it is what it is. I primarily use it as a developer workstation, but want to play games on it as well so I can be rid of my windows box.

I didn't expect it to be able to play the latest and greatest games but I did expect it to be able to play older titles reasonably well. Games launch from steam and seem to work, but I'm getting between 0 and 10 fps on the title screen of Kerbal Space Program. Other games are similarly functional but poorly performing.

Where do I start? How can I ensure my GPU is being leveraged? Is this as good as it gets?

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[–] [email protected] 5 points 1 week ago* (last edited 1 week ago) (13 children)

glxinfo | grep Vendor Vendor: Mesa (0xffffffff)

glxinfo | grep Device Device: llvmpipe (LLVM 17.0.6, 256 bits) (0xffffffff)

glxinfo | grep "OpenGL rend" OpenGL renderer string: llvmpipe (LLVM 17.0.6, 256 bits)

Let me know if that's not right. glxinfo dumps a lot of text but those are the only hits for your comment.

When I launch radeontop it prints this before launching, and then the output suggests it isn't working:

Unknown Radeon card. <= R500 won't work, new cards might.

All stats sit at 0.00% except for Memory Clock @ 9%.

EDIT:

xorg, not wayland

[–] [email protected] 5 points 1 week ago (7 children)

vulkan-tools | grep "GPU id":

		GPU id = 0 (Radeon RX 7900 GRE (RADV NAVI31))
		GPU id = 1 (Intel(R) Graphics (RPL-S))
		GPU id = 2 (llvmpipe (LLVM 15.0.7, 256 bits))
		GPU id = 0 (Radeon RX 7900 GRE (RADV NAVI31))
		GPU id = 1 (Intel(R) Graphics (RPL-S))
		GPU id = 2 (llvmpipe (LLVM 15.0.7, 256 bits))
		GPU id = 0 (Radeon RX 7900 GRE (RADV NAVI31))
		GPU id = 1 (Intel(R) Graphics (RPL-S))
		GPU id = 2 (llvmpipe (LLVM 15.0.7, 256 bits))
		GPU id = 0 (Radeon RX 7900 GRE (RADV NAVI31))
		GPU id = 1 (Intel(R) Graphics (RPL-S))
		GPU id = 2 (llvmpipe (LLVM 15.0.7, 256 bits))
		GPU id = 0 (Radeon RX 7900 GRE (RADV NAVI31))
		GPU id = 1 (Intel(R) Graphics (RPL-S))
		GPU id = 2 (llvmpipe (LLVM 15.0.7, 256 bits))
		GPU id = 0 (Radeon RX 7900 GRE (RADV NAVI31))
		GPU id = 1 (Intel(R) Graphics (RPL-S))
		GPU id = 2 (llvmpipe (LLVM 15.0.7, 256 bits))
		GPU id = 0 (Radeon RX 7900 GRE (RADV NAVI31))
		GPU id = 1 (Intel(R) Graphics (RPL-S))
		GPU id = 2 (llvmpipe (LLVM 15.0.7, 256 bits))
GPU id : 0 (Radeon RX 7900 GRE (RADV NAVI31)):
GPU id : 1 (Intel(R) Graphics (RPL-S)):
GPU id : 2 (llvmpipe (LLVM 15.0.7, 256 bits)):

cat /var/log/Xorg.*.log | grep amd

[  5067.696] (II) LoadModule: "amdgpu"
[  5067.696] (II) Loading /usr/lib/xorg/modules/drivers/amdgpu_drv.so
[  5067.696] (II) Module amdgpu: vendor="X.Org Foundation"
	All GPUs supported by the amdgpu kernel driver

cat /var/log/Xorg.*.log | grep gpu

[  5067.696] (II) Applying OutputClass "AMDgpu" to /dev/dri/card1
[  5067.696] 	loading driver: amdgpu
[  5067.696] (==) Matched amdgpu as autoconfigured driver 0
[  5067.696] (II) LoadModule: "amdgpu"
[  5067.696] (II) Loading /usr/lib/xorg/modules/drivers/amdgpu_drv.so
[  5067.696] (II) Module amdgpu: vendor="X.Org Foundation"
	All GPUs supported by the amdgpu kernel driver

[–] [email protected] 4 points 1 week ago* (last edited 1 week ago) (1 children)

[ 5067.696] (II) Applying OutputClass "AMDgpu" to /dev/dri/card1

Make sure that you actually have permission to that /dev/dri/card1 device. This may be arranged by udev or "video" group membership.

Regarding AMD vs Nvidia, unless you need CUDA you probably made the right choice. This sounds like a config issue and you'd probably be dealing with the same thing with Nvidia too.

[–] [email protected] 4 points 1 week ago

Yeah I'm pleasantly surprised by the unanimous responses that AMD seems to be the way to go in this space. At this point I know it's not using my GPU at all, so you are right that nvidia wouldn't be any different

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