Iterations = 66	diatance = 1.68431	 compute timecost = 146555us FPS = 6.8234
Iterations = 68	diatance = 1.71093	 compute timecost = 151121us FPS = 6.61723
Iterations = 70	diatance = 1.60623	 compute timecost = 154826us FPS = 6.45888
Iterations = 72	diatance = 1.40638	 compute timecost = 157189us FPS = 6.36176
Iterations = 74	diatance = 1.13986	 compute timecost = 160956us FPS = 6.2129