Author Topic: Talos II GPU slot preference  (Read 288 times)

Woof

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Talos II GPU slot preference
« on: September 26, 2022, 10:08:20 am »
I have an odd observation and I'd be interested if others have the same, or it's just a bunch of coincidences. Whilst juggling my PCIe cards around to find room for the Arctic Tern board I moved my graphics card (a WX9100) from CPU 2 to CPU 1, and suddenly the machine feels snappier.

I'm running Debian 11 and CPU 1 appears to be doing most of the work (judging by which runs the hottest) so I'm wondering if that's what makes the difference. I always had the impression the graphics were laggy, but now all of a sudden the system feels a lot more usable. That said, the OS received updates, the internal VGA is now disabled, probably other stuff, and the PSU was replaced (the logs were full of MasterDetectionFailure and I got it down to a PSU fault).

ClassicHasClass

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Re: Talos II GPU slot preference
« Reply #1 on: September 26, 2022, 10:49:43 am »
Interesting observation. I wonder how one could benchmark that.

Woof

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Re: Talos II GPU slot preference
« Reply #2 on: September 26, 2022, 11:01:44 am »
I should swap it back in the name of science and see what unscientific feeling it gives me…

I tried a few different AMD cards in the past few weeks too, and wasn’t impressed with any until this happy accident.

rheaplex

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Re: Talos II GPU slot preference
« Reply #3 on: October 21, 2022, 12:08:13 pm »
Which kernel are you using with your 9100? I'm having trouble on anything other than 5.5 .

Woof

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Re: Talos II GPU slot preference
« Reply #4 on: October 21, 2022, 12:43:38 pm »
@rheaplex I'll let you know next week (it's at work).

rheaplex

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Re: Talos II GPU slot preference
« Reply #5 on: October 21, 2022, 06:58:00 pm »
Thank you!  :)

Woof

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Re: Talos II GPU slot preference
« Reply #6 on: October 31, 2022, 06:30:28 am »
I finally took a look and I'm running with a custom 5.10.92 kernel with patches described here:

https://wiki.raptorcs.com/wiki/Operating_System_Specific_Workarounds/Debian#Debian-Specific_Issues_and_Workarounds

This is something I did at the start of the year and didn't realise I was still on the same old kernel. AFAIK this is fixed already in the upstream.

rheaplex

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Re: Talos II GPU slot preference
« Reply #7 on: November 02, 2022, 09:26:53 pm »
Thank you! I’ll try and target that. Have you made any changes to the skiroot kernel, firmware, or configuration?

Woof

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Re: Talos II GPU slot preference
« Reply #8 on: November 03, 2022, 02:50:11 am »
Only rebuilding the kernel with patches. I've been lazy and plugged in a VGA to HDMI adapter to see the BMC boot, so never got round to what should be the next steps.