C#のawaitがよくわからないのでいろいろ試してみた

        static async Task Main(string[] args)
        {
            var sw = new Stopwatch();
            TimeSpan ts;

            sw.Start();

            var result1 = await WaitProcess(5).ConfigureAwait(false);
            var result2 = await WaitProcess(3).ConfigureAwait(false);
            var result3 = await WaitProcess(1).ConfigureAwait(false);

            var sum = result1 + result2 + result3;

            sw.Stop();
            ts = sw.Elapsed;

            Console.WriteLine($"sum process took {ts.TotalMilliseconds} milli sec.");

            sw.Restart();

            var result4 = WaitProcess(5);
            var result5 = WaitProcess(3);
            var result6 = WaitProcess(1);

            var res4Result = await result4.ConfigureAwait(false);
            var res5Result = await result5.ConfigureAwait(false);
            var res6Result = await result6.ConfigureAwait(false);

            sum = res4Result + res5Result + res6Result;

            sw.Stop();
            ts = sw.Elapsed;

            Console.WriteLine($"sum process took {ts.TotalMilliseconds} milli sec.");

            sw.Restart();

            var result7 = WaitProcess(5);

            await WaitProcess(7);

            var result8 = WaitProcess(3);
            var result9 = WaitProcess(1);

            var res7Result = await result7;
            var res8Result = await result8;
            var res9Result = await result9;

            sum = res7Result + res8Result + res9Result;

            sw.Stop();
            ts = sw.Elapsed;

            Console.WriteLine($"sum process took {ts.TotalMilliseconds} milli sec.");

            sw.Restart();

            var result10 = WaitProcess(5);
            var result11 = WaitProcess(3);
            var result12 = WaitProcess(1);

            var res10Result = await result10;
            var res11Result = await result11;

            await WaitProcess(7);

            var res12Result = await result12;

            sum = res10Result + res11Result + res12Result;

            sw.Stop();
            ts = sw.Elapsed;

            Console.WriteLine($"sum={sum} sum process took {ts.TotalMilliseconds} milli sec.");
        }

5 sec task Start!
5 sec task Complete!
3 sec task Start!
3 sec task Complete!
1 sec task Start!
1 sec task Complete!
sum process took 9485.2903 milli sec.
5 sec task Start!
3 sec task Start!
1 sec task Start!
1 sec task Complete!
3 sec task Complete!
5 sec task Complete!
sum process took 5013.1635 milli sec.
5 sec task Start!
7 sec task Start!
5 sec task Complete!
7 sec task Complete!
3 sec task Start!
1 sec task Start!
1 sec task Complete!
3 sec task Complete!
sum process took 10035.8225 milli sec.
5 sec task Start!
3 sec task Start!
1 sec task Start!
1 sec task Complete!
3 sec task Complete!
5 sec task Complete!
7 sec task Start!
7 sec task Complete!
sum=9 sum process took 12004.8536 milli sec.

awaitいれると同期的処理になるっていうけど、この実験でだいたい理解できた気がする｡｡｡
というか、やってみると大したことないというか、こういうことかぁって感じ｡｡｡｡

以上