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OSRTT / OSLTT

Open Source Latency Test Tool
https://osrtt.com
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Heavy stuttering in Directx Mode #5

Open Tiberiusmoon opened 1 year ago

Tiberiusmoon commented 1 year ago

I have been analysing the Directx mode with CapframeX. There are a lot of stutters and inconsistencies which can impact results.

Uncapped/1000: https://i.imgur.com/hk9KPS8.jpeg https://i.imgur.com/bkFO3hK.jpeg https://i.imgur.com/J0KTix4.jpeg https://i.imgur.com/eFkpv3q.jpeg

My system is a 13600K with a RTX 3080. I Isolasted the OSLTT process in cores 1-5 to avoid the impact of other processes. Power saving features have been disabled through BIOS and OS.

andymanic commented 1 year ago

This is likely due to #2 and #3 which I've fixed and will be in the next update - likely tonight. I'll leave this open in case it's still there after the update.

Tiberiusmoon commented 1 year ago

I will report sometime after the update to confirm

Tiberiusmoon commented 1 year ago

Much better improvement after the update. https://i.imgur.com/oBYG3JK.jpeg There is still some outstanding FPS spikes when using the app uncapped. https://i.imgur.com/G0yMjnw.jpeg Even frame capping with Nvidia control panel shows these spikes.

More results: https://i.imgur.com/mWCGN0U.jpeg https://i.imgur.com/w7kx3D1.jpeg

To note: Games in general have this weird bug where the higher the frame rate the more erratic the FPS can become. (regarless of hardware limitations) But this app takes the cake even at 400fps the frames spike. https://i.imgur.com/X7n9MVo.jpeg