Dotnet Counters with DiagnosticClient

Program.cs

using Microsoft.Diagnostics.NETCore.Client;
using Microsoft.Diagnostics.Tracing;
using System;
using System.Collections.Generic;
using System.Diagnostics.Tracing;
using System.Threading.Tasks;

namespace DotnetDiagnostics
{
    class Program
    {
        static async Task Main(string[] args)
        {

            var client = new DiagnosticsClient(int.Parse(args[0]));
            var providers = new List<EventPipeProvider>
            {
                new EventPipeProvider(args[1], EventLevel.Verbose, 0xFFFFFFFF, new Dictionary<string,string> { ["EventCounterIntervalSec"] = "1" })
            };

            using var session = client.StartEventPipeSession(providers);
            var source = new EventPipeEventSource(session.EventStream);
            source.Dynamic.All += Dynamic_All; ;

            source.Process();
        }

        private static void Dynamic_All(TraceEvent obj)
        {
            var payload = (IDictionary<string, object>)obj.PayloadValue(0);
            var payloadValues = (IDictionary<string, object>)payload["Payload"];
            var display = payloadValues["DisplayName"];
            var value = payloadValues["Mean"];
            Console.WriteLine($"Counter {display} : {value}");
        }
    }
}