static void Main(string[] args)
{
var foo = new FooImpl();
var iFoo = (IFoo)foo;
Func <int> directLambda = () => foo.Bar();
Func <int> virtualLambda = () => iFoo.Bar();
var directCall = CompileBar(foo, asInterfaceCall: false);
var virtualCall = CompileBar(foo, asInterfaceCall: true);
var iterationCount = 200000000;
var sw = Stopwatch.StartNew();
for (int i = 0; i < iterationCount; i++)
{
virtualCall();
}
var elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Compiled Virtual Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
directCall();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Compiled Direct Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
virtualLambda();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Lambda Virtual Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
directLambda();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Lambda Direct Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
iFoo.Bar();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Virtual Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
foo.Bar();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Direct Call: {elapsedMs} ms");
}
static void Main(string[] args)
{
var foo = new FooImpl();
var iFoo = (IFoo)foo;
Func <int> directLambda = () => foo.Bar();
Func <int> virtualLambda = () => iFoo.Bar();
var compiledDirectCall = CompileBar(foo, asInterfaceCall: false);
var compiledVirtualCall = CompileBar(foo, asInterfaceCall: true);
var compiledArgDirectCall = CompileBar <FooImpl>();
var compiledArgVirtualCall = CompileBar <IFoo>();
var barMethodInfo = typeof(FooImpl).GetMethod(nameof(FooImpl.Bar));
var iBarMethodInfo = typeof(IFoo).GetMethod(nameof(IFoo.Bar));
var compiledToModuleDirect = CompileToModule <FooImpl>();
var compiledToModuleVirtual = CompileToModule <IFoo>();
var iterationCount = 200000000;
var sw = Stopwatch.StartNew();
for (int i = 0; i < iterationCount; i++)
{
compiledVirtualCall();
}
var elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Compiled Virtual Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
compiledDirectCall();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Compiled Direct Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
compiledArgVirtualCall(iFoo);
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Compiled w/ Arg Virtual Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
compiledArgDirectCall(foo);
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Compiled w/ Arg Direct Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
compiledToModuleVirtual(iFoo);
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Dynamic Module Virtual Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
compiledToModuleDirect(foo);
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Dynamic Module Direct Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
virtualLambda();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Code Lambda Virtual Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
directLambda();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Code Lambda Direct Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
iFoo.Bar();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Virtual Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
foo.Bar();
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Direct Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
int result = (int)iBarMethodInfo.Invoke(iFoo, null);
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Reflection Virtual Call: {elapsedMs} ms");
sw.Restart();
for (int i = 0; i < iterationCount; i++)
{
int result = (int)barMethodInfo.Invoke(foo, null);
}
elapsedMs = sw.ElapsedMilliseconds;
Console.WriteLine($"Reflection Direct Call: {elapsedMs} ms");
}