Am I doing the OSRTT test right?

[LordRaiden1]

Hi. I want to ask you if I'm doing tests right. Here is an example of test I run and the result screen. Is this a valid result, if not what am I missing? Thank you for your time.

[andymanic]

Personally I test with VSync on and the framerate limit at 1000, but otherwise yeah looks fine. The undershoot is a little weird, you'll want to hit the "Raw Data Graphs" button at the top there to view the raw data in graph form and see what's going on. Also, if you want me to verify issues or data, I need the data to do so. Please include a zip file of the test data folder you want me to look at in future.

[LordRaiden1]

Thank you. In one of your videos you said to set the refresh rate the same as the monitor and turn VRR off, so that's how I did the test. Now I did the test on an OLED monitor with VRR on and 1000 framerate as you mentioned here. I share the results of the previous monitor and the OLED monitor.

OLED And LCD Monitor Test Data.zip

[andymanic]

The data looks a lot better, although I'd recommend increasing the capture time to 150 milliseconds as at 60hz it's running a little slow. There's also an interesting dip on the MO32U at frame time, although being an OLED that's kind of expected. I should also mention that for OLEDs with adaptive brightness limiters, you'll want to hit ALT + ENTER when the UE4 test window pops up to make it windowed so you can resize it to just fit under the tool to minimally affect the brightness during the test.