See https://github.com/PolarHare/Day01 for more informative comments.
Currently FPS:
With periods, Fullscreen (true 480 x 854):
    - Xperia Sola(2 cores, 1Ghz): 60 FPS (It reaches android limit, by profiler each iteration costs 15ms(after start of periods))
 Without periods(true 480 x 854):
    - Xperia Sola: 27 FPS