public class CPUHub:Hub
  {
    private readonly Broadcaster broadcaster;
    public CPUHub():this(Broadcaster.broadcaster)
    {

    }
    public CPUHub(Broadcaster broadcaster)
    {
      this.broadcaster = broadcaster;
    }
  }

public class Broadcaster
  {
    private readonly static Lazy lazy = new Lazy(()=>new Broadcaster(GlobalHost.ConnectionManager.GetHubContext().Clients));

    private readonly TimeSpan timeSpan = TimeSpan.FromMilliseconds(1000);
    private readonly Timer timer;
    public static Broadcaster broadcaster
    {
      get { return lazy.Value; }
    }
    private IHubConnectionContext hubConnectionContext
    {
      get;
      set;
    }
    private Broadcaster(IHubConnectionContext hubConnectionContexts)
    {
      hubConnectionContext = hubConnectionContexts;
      timer = new Timer(BroadcastCpuUsage,null,timeSpan,timeSpan);
    }
    private void BroadcastCpuUsage(object o)
    {
      string cpu = GetCurrentCpu();

    }
    private string GetCurrentCpu()
    {
      string currentCpu = "";
      HttpClient httpClient = new HttpClient();
      httpClient.BaseAddress = new Uri("http://localhost:3039");
      var response = httpClient.GetAsync("api/cpu").Result;
      if (response.IsSuccessStatusCode)
      {
        currentCpu = response.Content.ReadAsStringAsync().Result;
      }
      return currentCpu;
    }
  }

public class CPUModule:NancyModule
  {
    PerformanceCounter performanceCounter;
    public CPUModule():base("api/cpu")
    {
      InitializePerformanceCounter();
      Get("/",Lexan=> 
      {
        int cpu = (int)Math.Ceiling(performanceCounter.NextValue());
        return Response.AsText(cpu.ToString());
      });
    }
    private void InitializePerformanceCounter()
    {
      performanceCounter = new PerformanceCounter();
      performanceCounter.CategoryName = "";
      performanceCounter.CounterName = "";
      performanceCounter.InstanceName = "";
      performanceCounter.NextValue();
      Thread.Sleep(1000);
    }
  }

[assembly:OwinStartup(typeof( NancyFxTaskManager.Startup))]
namespace NancyFxTaskManager
{
  public class Startup
  {
    public void Configuration(IAppBuilder app)
    {
      app.MapSignalR().UseNancy();
      
    }
  }
}