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Low GPU utilization when "Optimize game latency" turn on #2326
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Can you show the latency and fps graphs for both with and without "optimize game render latency"? |
Yeah that bug seems to be caused by SteamVR not respecting the framerate we set. To be honest though, disabling that setting is wrong usage of the OpenVR driver API (the implementation details are quite complex). This works on Windows, but on Linux the implementation is completely different and that part of the code is skipped altogether. So I think at this point we should remove the option as forcing it to true. Anyway your first graph looks perfect (apart from the staircase issue, which will be fixed). I don't see any fps drop. |
I think the issue is frame pacing here if you look at the graph even if the avg server fps is the clients I wouldn't be surprised if those small dips are noticeable? |
Anyway I don't get the lower util as being a bug its not its like complaining your browser isn't using 100% of your cpu |
When I enable the "Optimize game latency", my FPS drops, and GPU utilization decreases.
When I disable "Optimize game latency," FPS is stable, and GPU utilization increases, but the latency becomes inconsistent, making it difficult to use.
The picture is the difference when looking at exactly the same place.
Maybe it's the same issue. [(https://github.com//issues/1901)]
Is there a solution for this problem?
Description
General Troubleshooting
Environment
Hardware
CPU : Intel(R) Xeon(R) Gold 6238R CPU @ 2.20GHz
GPU : NVIDIA RTX A6000 X2
GPU Driver Version : 552.74
Audio :
Installation
ALVR Version : 20.5
ALVR Settings File :
SteamVR Version : 2.74
Install Type:
exe
,deb
,rpm
, etc)zip
)OS Name and Version (
winver
on Windows orgrep PRETTY_NAME /etc/os-release
on most Linux distributions):Window 10
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