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alvr-org / ALVR

Stream VR games from your PC to your headset via Wi-Fi
MIT License
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Low fps when "Optimize game latency" enabled. #1901

Open Ratewio opened 7 months ago

Ratewio commented 7 months ago

When "Optimize Game latency" is ENABLED the FPS dropping and GPU still stack under 60% usage. When i DISABLE it FPS is increase and GPU usage is 80-100%

In game VRChat.

PC specs: Windows 11 moment 4 Ryzen 7 5700x 2×16 3600MHz msi gtx1080+ 8GB game installed on SSD Kingston KC600

Sry for English

zarik5 commented 7 months ago

Does this happen with every VR game?

Benzeel commented 5 months ago

Hey!! I have this same issue, this applies to VRChat

With it off, "Decoder queue" likes to make this sawtooth pattern as its latency rises then resets over and over.

When the game is at a high fps: this setting works fine. But when fps drops: it causes 80 or 75 fps to feel like 30 or 40. Steam vr motion smoothing is off.

When i turn off "Optimize Game Latency" the sawtooth latency pattern is visible in game but everything is a lot smoother

you can see this pattern in the statistics tab live when you change the option

Specs: Windows 11 Intel i9-9900k (stable oc to 5.10GHz) 2080ti (11GB) 32GB (4x8 ram 3200MHz) 1TB NVMe SSD VRChat installed on secondary 2TB NVMe SSD

Other info: Using Quest 3 over link 120Hz client framerate will have negative framerate spikes, more when "Optimize Game Latency" is on No other issues to my knowledge.

Screenshot Link + Attatchment: (Off vs On) https://limey-is.me/8ULcIlycIzJo/direct image

github-actions[bot] commented 3 months ago

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 5 days.