Generic vs not-generic performance in C#

Question

I\'ve written two equivalent methods:

static bool F(T a, T b) where T : class
{
    return a == b;
}

static bool F2(A a, A b)
{
    return a == b;
         


        

Answer 1

Stop worrying about timing, worry about correctness.

Those methods are not equivalent. One of them uses class A's operator== and the other uses object's operator==.