The software on our devices are continually stuffed with the latest ideas and eye-candy. However, that would mean nothing if the user constantly got annoyed by lags throughout the OS. So you can probably imagine that testing such concerns would be a crucial part of the development process.
We got a peek at one of these latency-testing apparatuses, courtesy of the Chrome OS team. Built by the Finnish company, OptoFidelity, the Chrome TouchBot was built to “measure end-to-end latency of Android and Chrome OS devices.” The machine runs through various types of testing inputs.
One cool thing is that the team made TouchBot’s source code open and available for anyone to try it out different test scenarios on their own device. You can try it via: http://crostouchlatency.appspot.com