static long EmitMapper_Simple(int mappingsCount)
{
var mapper = ObjectMapperManager.DefaultInstance.GetMapper<B2, A2>();
var s = new B2();
var d = new A2();
var sw = new Stopwatch();
sw.Start();
for (int i = 0; i < mappingsCount; ++i)
{
mapper.Map(s, d);
}
sw.Stop();
return sw.ElapsedMilliseconds;
}