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Update DynamicGetMemberBinder to only add BindingRestrictions for dynamic type and cache the DynamicMetaObject #922
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15 changes: 15 additions & 0 deletions
15
src-console/ConsoleAppPerformanceTest/ConsoleAppPerformanceTest.csproj
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net48</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| <LangVersion>12</LangVersion> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\src\System.Linq.Dynamic.Core\System.Linq.Dynamic.Core.csproj" /> | ||
| </ItemGroup> | ||
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| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| using System.Linq.Dynamic.Core; | ||
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| TestDynamic(); | ||
| return; | ||
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| static void TestDynamic() | ||
| { | ||
| var list = new List<Demo>(); | ||
| for (int i = 0; i < 100000; i++) | ||
| { | ||
| list.Add(new Demo { ID = i, Name = $"Name {i}", Description = $"Description {i}" }); | ||
| } | ||
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| var xTimeAll = System.Diagnostics.Stopwatch.StartNew(); | ||
| var query = list.AsQueryable().Select(typeof(Demo), "new { ID, Name }").ToDynamicList(); | ||
| Console.WriteLine($"Total 1st Query: {(int)xTimeAll.Elapsed.TotalMilliseconds}ms"); | ||
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| xTimeAll.Restart(); | ||
| _ = query.AsQueryable().Select("ID").Cast<int>().ToList(); | ||
| Console.WriteLine($"Total nd Query: {(int)xTimeAll.Elapsed.TotalMilliseconds}ms"); | ||
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| xTimeAll.Restart(); | ||
| _ = query.AsQueryable().Select("new { it.ID as Idee } ").ToDynamicList(); | ||
| Console.WriteLine($"Total 3rd Query: {(int)xTimeAll.Elapsed.TotalMilliseconds}ms"); | ||
| } | ||
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| class Demo | ||
| { | ||
| public int ID { get; set; } | ||
| public string Name { get; set; } | ||
| public string Description { get; set; } | ||
| } |
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