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NixOS Gaming

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17 Jul 2025
@olivia:computer.surgeryoliviaoh, the fp8->fp16 lowering is happening in vkd3d-proton04:28:10
@olivia:computer.surgeryoliviahttps://themaister.net/blog/2025/05/09/conquering-fidelityfx-fsr4-enabling-the-pretty-pixels-on-linux-through-maniacal-persistence/04:28:12
@olivia:computer.surgeryoliviahttps://github.com/HansKristian-Work/vkd3d-proton/pull/242704:28:22
@olivia:computer.surgeryoliviakinda cursed04:28:23
@k900:0upti.meK900
In reply to @woobilicious:matrix.org
K900: your post mentions Intel-RT on non-x86, does that mean you can run Arc graphics on Arm?
Always could
04:54:28
@k900:0upti.meK900They're just PCIe04:54:28
@k900:0upti.meK900 The RT code had some handrolled x86_64 SIMD but they got rid of that 04:54:41
@mon:tchncs.deribosomerocker joined the room.23:58:21
18 Jul 2025
@jonhermansen:matrix.orgjonhermansenHoly crap, I've really been missing out. Looking Glass performance is really good. Now if I can only figure out how to correctly isolate and pin my CPU cores...02:40:56
@jonhermansen:matrix.orgjonhermansenIs anyone doing similar things and wanna share their setup?02:42:39
@jonhermansen:matrix.orgjonhermansenI have serious problems with automatic core assignment in virt-manager with a game that is basically single core. Maybe I should simply try reducing the number (I have 16 P-Cores, so I gave 12 to the VM) Maybe I also need hugepages I thought KVM would be maybe 5% to 10% performance hit. The latency on the system becomes really bad and I don't know why.02:47:39
@jonhermansen:matrix.orgjonhermansen* I have serious problems with automatic core assignment in virt-manager with a game that is basically single core. Maybe I should simply try reducing the number (I have 16 P-Cores, so I gave 12 cores to the VM) Maybe I also need hugepages I thought KVM would be maybe 5% to 10% performance hit. The latency on the system becomes really bad and I don't know why.02:49:17
@jonhermansen:matrix.orgjonhermansen I have 144hz monitor and the latency transferring data from the GPU is very low, but I'm still trying to iron out the CPU issues in the guest.

Maybe I should switch to invoking qemu from a script or as a systemd service
03:08:11
@jonhermansen:matrix.orgjonhermansen* I have serious problems with automatic core assignment in virt-manager with a game that is basically single threaded. Maybe I should simply try reducing the number (I have 16 P-Cores, so I gave 12 cores to the VM) Maybe I also need hugepages I thought KVM would be maybe 5% to 10% performance hit. The latency on the system becomes really bad and I don't know why.03:10:08
@jonhermansen:matrix.orgjonhermansen And for some reason, I can not use host-passthrough cpu or else the guest will crash. Even with migratable="off" 03:10:55

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