private static async Task ListPersons(PersonServiceClient client)
{
var reply = await client.ListAsync(new Empty());
Console.WriteLine("Persons: " + reply.Persons);
var sw = Stopwatch.StartNew();
var loops = 1000;
for (var i = 0; i < loops; i++)
{
reply = await client.ListAsync(new Empty());
var person = reply.Persons[0];
//Console.WriteLine(person.FirstName);
}
sw.Stop();
Console.WriteLine($"Calling ListPersons {loops} times took {sw.ElapsedMilliseconds} ms.");
}