EtwTest.cs

using System;
using System.Diagnostics.Tracing;

namespace EtwTest
{
    [EventSource]
    public class TestEventSource : EventSource
    {
        public static readonly TestEventSource Log  = new TestEventSource();
        
        public static class Keywords
        {
            public const EventKeywords Glory = (EventKeywords) 1;
            public const EventKeywords Shame = (EventKeywords) 2;
        }

        [Event(1, Keywords = Keywords.Glory, Level = EventLevel.LogAlways)]
        public void Hello(string contextObject, string message)
        {
            WriteEvent(1, contextObject, message);
        }

        [Event(2, Keywords = Keywords.Glory, Level = EventLevel.LogAlways)]
        public void Goodbye(string contextObject, int levelOfGlory)
        {
            WriteEvent(2, contextObject, levelOfGlory);
        }
        
        [Event(3, Keywords = Keywords.Shame, Level = EventLevel.LogAlways)]
        public void Goodbye2(int levelOfShame, int destroyWorld)
        {
            WriteEvent(3, levelOfShame, destroyWorld);
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            using var process = System.Diagnostics.Process.GetCurrentProcess();
            Console.WriteLine($"PID={process.Id} | Press enter to start!");
            Console.ReadLine();

            Program program = new Program();
            program.Run(666);
        }

        private void Run(int x)
        {
            TestEventSource.Log.Hello("1", "test");
            
            int y = x + 1;
            Console.WriteLine("oookaaaaay");
            TestEventSource.Log.Goodbye("1", y);
            TestEventSource.Log.Goodbye2(y, 1);
        }
    }
}