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.