public static void RunFastSubject()
{
//Observers My Fast Original Delegate Del+null
// 0 472 2877 315 43
// 1 588 3087 1537 314
// 2 1198 3298 1853 1573
// 3 1926 3509 2134 1850
// 4 2208 3718 2972 2182
Console.WriteLine("FastSubject");
Console.WriteLine("Observers My Fast Original Delegate Del+null");
for (var observers = -1; observers < 5; observers++)
{
Console.Write("{0,9} ", observers);
Stopwatch sw;
{
var subj = new FastSubject <int>();
for (var i = 0; i < observers; i++)
{
subj.Subscribe(new EmptyIntObserver());
}
subj.OnNext(0);
sw = Stopwatch.StartNew();
for (var i = 0; i < 100000000; i++)
{
subj.OnNext(i);
}
Console.Write("{0,8} ", sw.ElapsedMilliseconds);
}
{
var subj = new Subject <int>();
for (var i = 0; i < observers; i++)
{
subj.Subscribe(new EmptyIntObserver());
}
subj.OnNext(0);
sw = Stopwatch.StartNew();
for (var i = 0; i < 100000000; i++)
{
subj.OnNext(i);
}
Console.Write("{0,8} ", sw.ElapsedMilliseconds);
}
{
Action <int> d = p => { };
for (var i = 0; i < observers; i++)
{
d += p => { };
}
d(0);
sw = Stopwatch.StartNew();
for (var i = 0; i < 100000000; i++)
{
d(i);
}
Console.Write("{0,8} ", sw.ElapsedMilliseconds);
}
{
Action <int>?d = null;
for (var i = 0; i < observers; i++)
{
d += p => { };
}
{
var localD = d;
localD?.Invoke(0);
}
sw = Stopwatch.StartNew();
for (var i = 0; i < 100000000; i++)
{
var localD = d;
localD?.Invoke(i);
}
Console.Write("{0,8} ", sw.ElapsedMilliseconds);
}
Console.WriteLine();
}
}