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Xamarin.Forms.Benchmarks

Example of using BenchmarkDotNet to write some benchmarks for Xamarin.Forms concepts.

Results of different bindings

Running on Windows .NET framework:

Method Mean Error StdDev Gen 0 Gen 1 Gen 2 Allocated
ByHandOneTime 3.210 us 0.0836 us 0.0553 us 0.5531 0.0038 - 3.42 KB
TypedOneTime 4.087 us 0.0560 us 0.0370 us 0.8163 0.0076 - 5.05 KB
RegularOneTime 5.375 us 0.0117 us 0.0077 us 0.9079 0.0076 - 5.61 KB
ByHand 5.552 us 0.6508 us 0.4305 us 0.5951 0.1450 - 3.71 KB
Typed 6.992 us 0.4679 us 0.3095 us 0.9155 0.3052 - 5.67 KB
Regular 7.822 us 0.3988 us 0.2638 us 0.9460 0.3128 - 5.86 KB

Using BenchmarkDotnet for Xamarin.Forms in a Console app

This is likely the simplest option. Setup BenchmarkDotNet as you would for a normal .NET console app.

This is what I normally do:

static void Main(string[] args)
{
    var config = default (IConfig);
#if DEBUG
    // If you want to debug your benchmarks, you need this
    // When taking final measurements, use a Release build.
    config = new DebugInProcessConfig ();
#endif
    BenchmarkSwitcher.FromAssembly (typeof (Program).Assembly).Run (args, config);
}

If you want to use Xamarin.Forms on desktop, use my Xamarin.Forms.Mocks mocking library. This will allow you to benchmark Xamarin.Forms.Core and Xamarin.Forms.Xaml independent of any platform-specific code.

Using BenchmarkDotNet in your Xamarin.Android/iOS project

If trying to get this working in a mobile application project, a couple of notes:

  • Run benchmarks with Release builds
  • Disable the linker

Otherwise, the bulk of the work is going to be making a simple UI for choosing benchmarks and running them.

Check out BenchmarkDotNet's samples for details.