ci: performance project scaffolding

Author: baywet

Microsoft.OpenApi.sln

@@ -30,6 +30,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microsoft.OpenApi.Hidi", "s
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microsoft.OpenApi.Hidi.Tests", "test\Microsoft.OpenApi.Hidi.Tests\Microsoft.OpenApi.Hidi.Tests.csproj", "{6ADC5D41-EDD2-4206-B815-5DFF739C6832}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PerformanceTests", "performance\PerformanceTests.csproj", "{537E49E3-325E-40EE-A90E-7556D4D333AA}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -68,6 +70,10 @@ Global
 		{6ADC5D41-EDD2-4206-B815-5DFF739C6832}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6ADC5D41-EDD2-4206-B815-5DFF739C6832}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{6ADC5D41-EDD2-4206-B815-5DFF739C6832}.Release|Any CPU.Build.0 = Release|Any CPU
+		{537E49E3-325E-40EE-A90E-7556D4D333AA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{537E49E3-325E-40EE-A90E-7556D4D333AA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{537E49E3-325E-40EE-A90E-7556D4D333AA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{537E49E3-325E-40EE-A90E-7556D4D333AA}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

performance/Benchmarks.cs

@@ -0,0 +1,21 @@
+using System;
+using BenchmarkDotNet;
+using BenchmarkDotNet.Attributes;
+
+namespace performance
+{
+    public class Benchmarks
+    {
+        [Benchmark]
+        public void Scenario1()
+        {
+            // Implement your benchmark here
+        }
+
+        [Benchmark]
+        public void Scenario2()
+        {
+            // Implement your benchmark here
+        }
+    }
+}

performance/PerformanceTests.csproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <OutputType>Exe</OutputType>
+  </PropertyGroup>
+  <PropertyGroup>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <DebugSymbols>true</DebugSymbols>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <Optimize>true</Optimize>
+    <Configuration>Release</Configuration>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="BenchmarkDotNet" Version="0.14.0" />
+    <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.14.0" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\src\Microsoft.OpenApi\Microsoft.OpenApi.csproj" />
+  </ItemGroup>
+</Project>

performance/Program.cs

@@ -0,0 +1,17 @@
+using BenchmarkDotNet.Configs;
+using BenchmarkDotNet.Running;
+
+namespace performance
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            var config = DefaultConfig.Instance;
+            var summary = BenchmarkRunner.Run<Benchmarks>(config, args);
+
+            // Use this to select benchmarks from the console:
+            // var summaries = BenchmarkSwitcher.FromAssembly(typeof(Program).Assembly).Run(args, config);
+        }
+    }
+}