4 ms·
Awhile ago there was a submission and discussion on HN looking at the latency between a keystroke and something appearing on screen through the layers of OS and
by helsinkiandrew 5y ago
Awhile ago there was a submission and discussion on HN looking at the latency between a keystroke and something appearing on screen through the layers of OS and application, but I can't find it, anyone?
And I thought human reaction time was 100-200ms+ anyway Or would training on a particular game/movement sequence improve that.
- lukastr0 5y agoReaction time is something entirely different from being able to notice latency. Read the article, it's addressed there.
- praptak 5y agoNoticing latency is very context sensitive. A fun example is drawing lines on a touchscreen. Even ~20 milliseconds manifests as a visible gap between the tip of the pen and the line that "chases" it. Temporal resolution of human hearing obviously varies with what exactly you measure but I believe it is in a single digit millisecond range for discerning between two clicks in quick succession and a single click.
- kragen 5y agoEven 1ms.
- 0-_-0 5y agoWhile participants performed dragging and scribbling tasks, very low levels of latency could be discriminated, i.e., ~1 versus 2 milliseconds [...] [0] [0]: https://www.semanticscholar.org/paper/In-the-blink-of-an-eye%3A-investigating-latency-Ng-Annett/386a15fd85c162b8e4ebb6023acdce9df2bd43ee?p2df https://www.semanticscholar.org/paper/In-the-blink-of-an-eye...
- kalleboo 5y agoYou may be thinking of the same guy, he has his earlier article[0] linked from this one [0] https://danluu.com/input-lag/ https://danluu.com/input-lag/