3 ms·
The best way to measure end-to-end latency is an Arduino with a light sensor, with the Arduino programatically injecting USB events. I made an Amazon shopping l
by raphlinus 8y ago
The best way to measure end-to-end latency is an Arduino with a light sensor, with the Arduino programatically injecting USB events. I made an Amazon shopping list[1] a year ago. I hope to rework my code and post a blog soon.
[1] https://www.amazon.com/ideas/amzn1.account.AGSZP5AWBGH7772O35NTI7RN3JLQ/2LZEHRCO3YHSZ https://www.amazon.com/ideas/amzn1.account.AGSZP5AWBGH7772O3...
- nickjj 8y agoIf you're into this sort of thing I recommend reading this article: http://www.tftcentral.co.uk/articles/input_lag.htm http://www.tftcentral.co.uk/articles/input_lag.htm It goes into a lot of depth on input lag and how to measure it accurately. The site also happens to have recorded input lag numbers for hundreds of monitors. In the article it mentions using photo sensors and oscilloscopes as the best way to get a reading but they settle on using a special type of stopwatch test that gets results that are nearly the same.
- nzjrs 8y agoI did such a thing a while ago at my last job. I guess it still works https://github.com/strawlab/lagtest https://github.com/strawlab/lagtest