thief-mission-viewer/project/code/TMV/Timing.cs

using System;
using System.Diagnostics;

namespace KeepersCompound.TMV;

public static class Timing
{
    public static void TimeStage(string stagename, Action action)
    {
        var watch = Stopwatch.StartNew();
        action();
        watch.Stop();
        Godot.GD.Print($"[{stagename}]: {watch.Elapsed:g}");
    }

    public static T TimeStage<T>(string stagename, Func<T> action)
    {
        var watch = Stopwatch.StartNew();
        var value = action();
        watch.Stop();
        Godot.GD.Print($"[{stagename}]: {watch.Elapsed:g}");
        return value;
    }
}