input-lag
Click-to-screen latency, measured with your phone's slow motion.
Running locallyInput lag test
How long between your click and the screen changing? Film it with your phone in slow motion and KIVO turns the frames into milliseconds.
1. Film the flash
Open the flash page, put the phone in slow motion (240 fps if it has it) so it sees both the mouse and the screen, and click a few times.
2. Load the video and mark
Phones usually save slow motion as a 30 fps file: one frame of the file is 1/240 s of real time.
Load the video you filmed.
The result includes the mouse, the PC, the browser and the screen. A game in exclusive fullscreen is usually a little faster.