Time all Run methods in dpb and print if they take more than 100ms. Uses https://github.com/pardeike/Harmony

Patch.cs

using System;
using System.Linq;
using DreamPoeBot.Loki.Bot;
using DreamPoeBot.Loki.Common;
using HarmonyLib;

namespace kekslib
{
    public static partial class KeksTools
    {
        private static Harmony harmony = new Harmony("de.keksdev.dpb");
        private class PatchTaskRun
        {
            public static void Prefix(ITask __instance, out PerformanceTimer __state)
            {
                __state = new PerformanceTimer($"{__instance.Name}.Run", triggerMs:100, dontPrint:false);
                __state.Start();
            }
            
            public static void Postfix(PerformanceTimer __state)
            {
                __state.StopAndPrint();
            }
        }

        public static void PatchRun()
        {
            // only patch once
            var myOriginalMethods = harmony.GetPatchedMethods();
            if (myOriginalMethods.Any())
                return;
            
            // Get all types that implement ITask
            var instances = from t in AppDomain.CurrentDomain.GetAssemblies().SelectMany(x => x.GetTypes())
                where t.GetInterfaces().Contains(typeof(ITask))
                      && t.GetConstructor(Type.EmptyTypes) != null
                select Activator.CreateInstance(t) as ITask;

            foreach (var instance in instances)
            {
                var original = instance.GetType().GetMethod("Run");
                var prefix = typeof(PatchTaskRun).GetMethod(nameof(PatchTaskRun.Prefix));
                var postfix = typeof(PatchTaskRun).GetMethod(nameof(PatchTaskRun.Postfix));
                
                harmony.Patch(original, new HarmonyMethod(prefix), new HarmonyMethod(postfix));
            }
        }
        
    }
}