From 2e3de2e49002d69cb38bfdf3d521f676022e4b3e Mon Sep 17 00:00:00 2001
From: Vladimir Pecanac <vladimir.pecanac@gmail.com>
Date: Sun, 23 Aug 2026 23:52:24 +0200
Subject: [PATCH] DifferencesBetweenSpanAndMemoryInCSharp: retarget net10.0,
 return the slice from both benchmarks

Both benchmark methods returned void and discarded their slice, so the
published means (0.2760 ns / 0.0239 ns) measured an empty method rather
than the operation. Returning the slice makes BenchmarkDotNet consume the
result and produces real figures.
---
 .../DifferencesBetweenSpanAndMemoryInCSharp.csproj        | 2 +-
 .../SpanMemoryBenchmark.cs                                | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/dotnet-performance/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp.csproj b/dotnet-performance/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp.csproj
index 848f901f4f..af4ee328cd 100644
--- a/dotnet-performance/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp.csproj
+++ b/dotnet-performance/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
diff --git a/dotnet-performance/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp/SpanMemoryBenchmark.cs b/dotnet-performance/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp/SpanMemoryBenchmark.cs
index 4976f7472b..a193842a2b 100644
--- a/dotnet-performance/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp/SpanMemoryBenchmark.cs
+++ b/dotnet-performance/DifferencesBetweenSpanAndMemoryInCSharp/DifferencesBetweenSpanAndMemoryInCSharp/SpanMemoryBenchmark.cs
@@ -8,14 +8,14 @@ public class SpanMemoryBenchmark
     private readonly int[] data = [1, 2, 3, 4, 5, 6];
 
     [Benchmark]
-    public void SliceAsMemory()
+    public Memory<int> SliceAsMemory()
     {
-       data.AsMemory().Slice(2, 1);
+        return data.AsMemory().Slice(2, 1);
     }
 
     [Benchmark]
-    public void SliceAsSpan()
+    public Span<int> SliceAsSpan()
     {
-        data.AsSpan().Slice(2, 1);
+        return data.AsSpan().Slice(2, 1);
     }
 }