Timing between two canvas
OK there is something I do not understand when there is a loop, and when a canvas is drawn at every iteration.
So I tried something simple:
So I prepare a canvas, draw it and write the time of presentation of the canvas, then I sleep for 1sec.
For some reasons when I check the time difference between two consecutive canvas presentation I have really strange numbers:
Shouldnt the time there be a multiple of my refresh rate close to 1 sec?
Also I join the script I used for testing (I tried that with both psychpy and expyriment and same results).