"Single NSMutableArray" vs. "Multiple C-arrays" --Which is more Efficient/Practical?
- by RexOnRoids
Situation:
I have a DAY structure. The DAY structure has three variables or attributes: a Date (NSString*), a Temperature (float), and a Rainfall (float).
Problem:
I will be iterating through an array of about 5000 DAY structures and graphing a portion of these onto the screen using OpenGL.
Question:
As far as drawing performance, which is better? I could simply create an NSMutableArray of DAY structures (NSObjects) and iterate on the array on each draw call -- which I think would be hard on the CPU. Or, I could instead manually manage three different C-Arrays -- One for the Date String (2-Dimensional), One for the temperature (1-Dimensional) and One for the Rainfall (1-Dimensional). I could keep track of the current Day by referencing the current index of the iterated C-Arrays.
