davepcallan · February 10, 2025 18:18 · Feb 10, 2025 · Feb 10, 2025
diff --git a/GettingStartedWithBenchmarkDotNet.cs b/GettingStartedWithBenchmarkDotNet.cs
@@ -21,7 +21,7 @@ public Config()
             SummaryStyle =
                 SummaryStyle.Default
                     .WithRatioStyle(RatioStyle.Trend)
-                    .WithTimeUnit(Perfolizer.Horology.TimeUnit.Millisecond);
+                    .WithTimeUnit(Perfolizer.Horology.TimeUnit.Nanosecond);
         }
     }
 

diff --git a/GettingStartedWithBenchmarkDotNet.cs b/GettingStartedWithBenchmarkDotNet.cs
@@ -0,0 +1,64 @@
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Columns;
+using BenchmarkDotNet.Configs;
+using BenchmarkDotNet.Jobs;
+using BenchmarkDotNet.Reports;
+using System.Text;
+
+namespace Benchmarks;
+
+[MemoryDiagnoser]
+[HideColumns(Column.RatioSD, Column.AllocRatio, Column.Gen0, Column.Gen2)]
+[SimpleJob(RuntimeMoniker.Net90)]
+[ReturnValueValidator(failOnError: true)] // Validate methods are equivalent
+[Config(typeof(Config))] // Custom class to configure BenchmarkDotNet
+public class StringBuilderVPlus
+{
+    private class Config : ManualConfig
+    {
+        public Config()
+        {
+            SummaryStyle =
+                SummaryStyle.Default
+                    .WithRatioStyle(RatioStyle.Trend)
+                    .WithTimeUnit(Perfolizer.Horology.TimeUnit.Millisecond);
+        }
+    }
+
+    [Params(10, 20)] // Run benchmarks with these parameters
+    public int Concats;
+
+    [Benchmark]
+    public string StringBuilder()
+    {
+        StringBuilder stringBuilder = new StringBuilder();
+
+        for (int i = 0; i < Concats; i++)
+        {
+            stringBuilder.Append("Hello World");
+        }
+
+        return stringBuilder.ToString();
+    }
+
+    [Benchmark(Baseline = true)]
+    public string StringConcatenation()
+    {
+        string str = "";
+
+        for (int i = 0; i < Concats; i++)
+        {
+            str += "Hello World";
+        }
+
+        return str;
+    }
+}
+
+public class Program
+{
+    public static void Main(string[] args)
+    {
+        BenchmarkRunner.Run<StringBuilderVPlus>();
+    }
+}