I have a background that consist of white and red squares. that are 10 by 10 pixels in dimensions. 

I have two options and I don't know which one is best.

1.
I could save a png file of 960x480px filled with red/white squares in my 2048x2048 texture map and then set the background as one complete image.

OR
2. I could save a png file of 10x10px in my 2048x2048 texture map. and then in code tile this across the whole screen.

What is more performant?