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U# vs C#

U# is noticeably slower than regular C#, to benchmark it I decided to execute two scripts in U# and C#, one calculates the n-th element in the Fibonacci series, the second one generates a maze.

To make the tests a bit fairer, I disable the C# compiler optimization, since the U# compiler does not optimize your scripts

Recursive functions

For this test I executed a script that finds the nth element in the Fibonacci series, the Fibonacci method looks like this 

[RecursiveMethod]
public int FibonacciRecursive(int n)
{
	if (n <= 1)
		return n;
	else
		return FibonacciRecursive(n - 1) + FibonacciRecursive(n - 2);
}

Since FibonacciRecursive is a recursive function, the [RecursiveMethod] attribute need to be added.

This is really a horrible way to calculate the nth element in the Fibonacci serie because certain method calls get called multiple times, and the number of method call rises very quicklyl :

  • Fibonacci(1) calls the Fibonacci method 1 time
  • Fibonacci(2) calls the Fibonacci method 3 times
  • Fibonacci(10) calls the Fibonacci method 177 times
  • Fibonacci(22) calls the Fibonacci method 57313 time

So I felt like this test is an amazing way to determine how well U# performs this task.

 


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