using System;

using System.Threading.Tasks;

​

public static class Program

{

    public static async Task Main()

    {

        static ValueTask<int> GetSomeValueAsync(int number) => ValueTask.FromResult(42);

        static async Task<int> CallingMethodAsyncTask(int number) => await GetSomeValueAsync(number) + 1;

        static async ValueTask<int> CallingMethodAsyncValueTask(int number) => await GetSomeValueAsync(number) + 1;

​

        await CallingMethodAsyncTask(1);

        await CallingMethodAsyncValueTask(1);

        const int iterations = 1_000;

        long totalAllocatedBytes;

​

        totalAllocatedBytes = GC.GetTotalAllocatedBytes();

        for (int i = 0; i < iterations; i++) { await CallingMethodAsyncValueTask(i); }

        Console.WriteLine($"{nameof(CallingMethodAsyncValueTask)}: {(GC.GetTotalAllocatedBytes() - totalAllocatedBytes) / iterations:#,0} bytes per operation");

​

        totalAllocatedBytes = GC.GetTotalAllocatedBytes();

        for (int i = 0; i < iterations; i++) { await CallingMethodAsyncTask(i); }

        Console.WriteLine($"{nameof(CallingMethodAsyncTask)}: {(GC.GetTotalAllocatedBytes() - totalAllocatedBytes) / iterations:#,0} bytes per operation");

    }

}

​