Alex Golesh's Blog About Silverlight Development

Silverlight 3 Quick Tip: Analytics

Silverlight 3 has new feature which should help us to understand how good our application performs. This feature is Analytics class. It Has 2 read-only properties

AverageProcessLoad – average CPU used by this process across all the cores

AverageProcessorLoad – average CPU usage across all cores

In addition it has GpuCollection collection with objects of GpuInformation type. Each one of GpuInformation object provides information about:

DeviceId – device ID of the GPU

VendorId – vendor ID of the GPU

DriverVersion – video drivers version

Quick usage sample – show CPU usage:

Code behind:

public partial class MainPage : UserControl
{
  private Analytics theAnalytics;

  public MainPage()
  {
    InitializeComponent();

    theAnalytics = new Analytics();

    DispatcherTimer timer = new DispatcherTimer();
    timer.Interval = TimeSpan.FromSeconds(1);
    timer.Tick += (s, e) =>
      {
        txtCPULoad.Text = theAnalytics.AverageProcessorLoad.ToString();
        txtSLCPULoad.Text = theAnalytics.AverageProcessLoad.ToString();
      };
    timer.Start();
  }
}

XAML:

<StackPanel x:Name="LayoutRoot">
  <StackPanel Orientation="Horizontal">
    <TextBlock Text="Average CPU Load:"/>
    <TextBlock x:Name="txtCPULoad"/>
    <TextBlock Text="%"/>
  </StackPanel>
  <StackPanel Orientation="Horizontal">
    <TextBlock Text="Average Silverlight CPU Load:"/>
    <TextBlock x:Name="txtSLCPULoad"/>
    <TextBlock Text="%"/>
  </StackPanel>
</StackPanel>

Running application:

Enjoy,

Alex