PerfLab FPS Stats

A simple UI thread performance stats service for your dotnet app which approximately measures UI thread latency and FPS (frames per second) the UI thread is handling in real-time.

Usage

Dotnet MAUI example

• Create and start the FPS Service

  using PerfLab.FpsStats; 
  ...
  _fpsService = new FpsStatsService();
  _fpsService.Start(action => Dispatcher.DispatchAsync(action));
  

• Read FPS stats periodically

  CounterLabel.Text = _fpsService.Stats;
  

• Subscribe for updates (optional)

  _fpsService.StatsUpdated += _fpsService_StatsUpdated;
  
  private void _fpsService_StatsUpdated(object sender, EventArgs e)
  {
      CounterLabel.Text = _fpsService.Stats;
  }
  

• Stop service when not needed and unsubscribe from updates

  _fpsService.StatsUpdated -= _fpsService_StatsUpdated;
  _fpsService.Stop();