2023-04 Livecharts2-Performance [ Issue displaying 10000+ points LiveChart 2.0.0.Beta.701, Avalonia 0.10.19]

See issue discussion on Livecharts2 : beto-rodriguez/LiveCharts2#976

Livecharts-avalonia-crash [ Resolved with LiveChart 2.0.0.Beta.300, Avalonia 0.10.19

This is a test application to investigate a sporadic crash ( seconds to hours) happening when using LiveChart and AvaloniaUI. The current code use LiveChart 2.0.0.Beta.300 and AvaloniaUI 0.10.16

The application is displaying a set of Livechart with data refresh at 20Hz..It is to mimic displaying sensors data (temperature/pressure value) from devices.

The stacktrace of the crash is as follow:

Application: LiveChartsTest.exe CoreCLR Version: 6.0.622.26707 .NET Version: 6.0.6 Description: The process was terminated due to an unhandled exception. Exception Info: System.ArgumentNullException: Value cannot be null. at Avalonia.Rendering.SceneGraph.SceneBuilder.Update(Scene scene, IVisual visual) in //src/Avalonia.Visuals/Rendering/SceneGraph/SceneBuilder.cs:line 120 at Avalonia.Rendering.DeferredRenderer.UpdateScene() in //src/Avalonia.Visuals/Rendering/DeferredRenderer.cs:line 660 at Avalonia.Rendering.DeferredRenderer.UpdateSceneIfNeeded() in //src/Avalonia.Visuals/Rendering/DeferredRenderer.cs:line 624 at Avalonia.Threading.JobRunner.RunJobs(Nullable`1 priority) in //src/Avalonia.Base/Threading/JobRunner.cs:line 37 at Avalonia.Win32.Win32Platform.WndProc(IntPtr hWnd, UInt32 msg, IntPtr wParam, IntPtr lParam) in //src/Windows/Avalonia.Win32/Win32Platform.cs:line 283 at Avalonia.Win32.Interop.UnmanagedMethods.DispatchMessage(MSG& lpmsg) at Avalonia.Win32.Win32Platform.RunLoop(CancellationToken cancellationToken) in //src/Windows/Avalonia.Win32/Win32Platform.cs:line 210 at Avalonia.Threading.Dispatcher.MainLoop(CancellationToken cancellationToken) in //src/Avalonia.Base/Threading/Dispatcher.cs:line 65 at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.Start(String[] args) in //src/Avalonia.Controls/ApplicationLifetimes/ClassicDesktopStyleApplicationLifetime.cs:line 120 at Avalonia.ClassicDesktopStyleApplicationLifetimeExtensions.StartWithClassicDesktopLifetime[T](T builder, String[] args, ShutdownMode shutdownMode) in /_/src/Avalonia.Controls/ApplicationLifetimes/ClassicDesktopStyleApplicationLifetime.cs:line 209 at TestLiveCharts.Program.Main(String[] args) in C:\Users\Alexandre\source\TestCode\LiveChartsTest\TestApplication\Program.cs:line 34

We also are getting the following:

System.ArgumentException: An item with the same key has already been added. Key: [41, System.Collections.Generic.List1[Avalonia.VisualTree.IVisual]] at System.Collections.Generic.TreeSet1.AddIfNotPresent(T item) at System.Collections.Generic.SortedDictionary2.Add(TKey key, TValue value) at Avalonia.Rendering.DirtyVisuals.Add(IVisual visual) in /_/src/Avalonia.Visuals/Rendering/DirtyVisuals.cs:line 56 at LiveChartsCore.CartesianChart1.Measure() at LiveChartsCore.Chart1.<UpdateThrottlerUnlocked>b__144_1() at Avalonia.Threading.JobRunner.RunJobs(Nullable1 priority) in //src/Avalonia.Base/Threading/JobRunner.cs:line 37 at Avalonia.Win32.Win32Platform.WndProc(IntPtr hWnd, UInt32 msg, IntPtr wParam, IntPtr lParam) in //src/Windows/Avalonia.Win32/Win32Platform.cs:line 263 at Avalonia.Win32.Interop.UnmanagedMethods.DispatchMessage(MSG& lpmsg) at Avalonia.Win32.Win32Platform.RunLoop(CancellationToken cancellationToken) in //src/Windows/Avalonia.Win32/Win32Platform.cs:line 210 at Avalonia.Threading.Dispatcher.MainLoop(CancellationToken cancellationToken) in //src/Avalonia.Base/Threading/Dispatcher.cs:line 65 at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.Start(String[] args) in /_/src/Avalonia.Controls/ApplicationLifetimes/ClassicDesktopStyleApplicationLifetime.cs:line 96 at TestLiveCharts.Program.Main(String[] args) in C:\Users\Alexandre\source\TestCode\LiveChartsTest\TestApplication\Program.cs:line 34

!!! Unhandled application error !!! An item with the same key has already been added. Key: [41, System.Collections.Generic.List1[Avalonia.VisualTree.IVisual]] at System.Collections.Generic.TreeSet1.AddIfNotPresent(T item) at System.Collections.Generic.SortedDictionary2.Add(TKey key, TValue value) at Avalonia.Rendering.DirtyVisuals.Add(IVisual visual) in /_/src/Avalonia.Visuals/Rendering/DirtyVisuals.cs:line 56 at LiveChartsCore.CartesianChart1.Measure() at LiveChartsCore.Chart1.<UpdateThrottlerUnlocked>b__144_1() at Avalonia.Threading.JobRunner.RunJobs(Nullable1 priority) in //src/Avalonia.Base/Threading/JobRunner.cs:line 37 at Avalonia.Win32.Win32Platform.WndProc(IntPtr hWnd, UInt32 msg, IntPtr wParam, IntPtr lParam) in //src/Windows/Avalonia.Win32/Win32Platform.cs:line 263 at Avalonia.Win32.Interop.UnmanagedMethods.DispatchMessage(MSG& lpmsg) at Avalonia.Win32.Win32Platform.RunLoop(CancellationToken cancellationToken) in //src/Windows/Avalonia.Win32/Win32Platform.cs:line 210 at Avalonia.Threading.Dispatcher.MainLoop(CancellationToken cancellationToken) in //src/Avalonia.Base/Threading/Dispatcher.cs:line 65 at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.Start(String[] args) in /_/src/Avalonia.Controls/ApplicationLifetimes/ClassicDesktopStyleApplicationLifetime.cs:line 96 at TestLiveCharts.Program.Main(String[] args) in C:\Users\Alexandre\source\TestCode\LiveChartsTest\TestApplication\Program.cs:line 34