Demo: Benchmarking Arrays (part 1)
The lesson benchmarks filling a 5000 x 75000 element grid using a one-dimensional array, a flattened 1D array with manual offset, a jagged array, and a two-dimensional array, revealing that the 2D array is twice as slow as the 1D array due to the Array.Set overhead. We show that manual array flattening is only marginally slower than a native 1D array, making it the best alternative to true 2D arrays.
Previous Module
Basic Performance Optimizations
This Module
Array Performance Optimizations
1D, 2D and Jagged Arrays
1D Arrays in Intermediate Language
2D Arrays in Intermediate Language
Jagged Arrays in Intermediate Language
Demo: Benchmarking Arrays (part 1)
Demo: Benchmarking Arrays (part 2)
Array Performance Recap
For versus Foreach Performance
Foreach on an Array
Demo: Benchmarking For and Foreach
Demo: For and Foreach in Intermediate Language