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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.