Added Benchmark project comparing performance of 3.1.0 vs 3.2.0 (encode and decode)

Sqids.sln

@@ -12,6 +12,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Sqids.Tests", "test\Sqids.T
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Sqids.CodeGeneration", "src\Sqids.CodeGeneration\Sqids.CodeGeneration.csproj", "{04A8CCFC-1496-4F22-8399-922367E9260B}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Sqids.Benchmarks", "benchmarks\Sqids.Benchmarks\Sqids.Benchmarks.csproj", "{44F4CB35-FD25-4D58-DB03-F1539F678FF2}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -30,6 +32,10 @@ Global
 		{04A8CCFC-1496-4F22-8399-922367E9260B}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{04A8CCFC-1496-4F22-8399-922367E9260B}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{04A8CCFC-1496-4F22-8399-922367E9260B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{44F4CB35-FD25-4D58-DB03-F1539F678FF2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{44F4CB35-FD25-4D58-DB03-F1539F678FF2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{44F4CB35-FD25-4D58-DB03-F1539F678FF2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{44F4CB35-FD25-4D58-DB03-F1539F678FF2}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

benchmarks/Sqids.Benchmarks/.editorconfig

@@ -0,0 +1,2 @@
+[*.{cs,vb}]
+dotnet_diagnostic.CA1050.severity = none

benchmarks/Sqids.Benchmarks/Program.cs

@@ -0,0 +1,67 @@
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Configs;
+using BenchmarkDotNet.Environments;
+using BenchmarkDotNet.Jobs;
+using BenchmarkDotNet.Running;
+
+BenchmarkRunner.Run<SquidsBenchmarks>();
+
+// Define the Custom Config
+public class PackageComparisonConfig : ManualConfig
+{
+    public PackageComparisonConfig() {
+        var packageVersions = new[] { "3.2.0", "3.1.0" };
+
+        var runtimes = new Runtime[]
+        {
+            ClrRuntime.Net48,
+            CoreRuntime.Core70,
+            CoreRuntime.Core80
+        };
+
+        foreach (var version in packageVersions) {
+            foreach (var runtime in runtimes) {
+                AddJob(Job.Default
+                    .WithRuntime(runtime)
+                    .WithMsBuildArguments($"/p:BenchmarksPackageVersion={version}")
+                    .WithId($"{runtime.Name} - v{version}"));
+            }
+        }
+    }
+}
+
+[Config(typeof(PackageComparisonConfig))]
+[MemoryDiagnoser]
+public class SquidsBenchmarks
+{
+#if NET7_0_OR_GREATER
+    private readonly Sqids.SqidsEncoder<long> sqid = new();
+#else
+    private readonly Sqids.SqidsEncoder sqid = new();
+#endif
+
+#if WITH_LONG_SUPPORT
+    static readonly long longValue = (long)int.MaxValue;
+#else
+    static readonly int intValue = int.MaxValue;
+#endif
+
+    static readonly string EncodedValue = "UKrsQ1F";
+
+    [Benchmark]
+    public string SqidEncode() {
+#if WITH_LONG_SUPPORT
+        var encoded = sqid.Encode(longValue);
+#else
+        var encoded = sqid.Encode(intValue);
+#endif
+        return encoded;
+    }
+
+    [Benchmark]
+    public void SqidDecode() {
+        var decoded = sqid.Decode(EncodedValue)[0];
+        if (decoded != int.MaxValue)
+            throw new Exception("Decoded value does not match original");
+    }
+}

benchmarks/Sqids.Benchmarks/Sqids.Benchmarks.csproj

@@ -0,0 +1,31 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <LangVersion>latest</LangVersion>
+        <TargetFrameworks>net48;net7.0;net8.0</TargetFrameworks>
+        <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+
+        <BenchmarksPackageVersion Condition="'$(BenchmarksPackageVersion)' == ''">3.2.0</BenchmarksPackageVersion>
+    </PropertyGroup>
+
+    <PropertyGroup Condition="'$(BenchmarksPackageVersion)' == '3.2.0'">
+        <DefineConstants>$(DefineConstants);WITH_LONG_SUPPORT</DefineConstants>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="BenchmarkDotNet" Version="0.15.8" />
+        <PackageReference Include="Sqids" Version="$(BenchmarksPackageVersion)" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <EditorConfigFiles Remove="C:\work\GitHub\sqids-dotnet\benchmarks\Sqids.Benchmarks\.editorconfig" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <None Include="C:\work\GitHub\sqids-dotnet\benchmarks\Sqids.Benchmarks\.editorconfig" />
+    </ItemGroup>
+
+</Project>