fix ProfilingSandbox

tests/ImageSharp.Tests/Formats/Jpg/JpegColorConverterTests.cs

@@ -341,6 +341,32 @@ namespace SixLabors.ImageSharp.Tests.Formats.Jpg
                 seed);
         }
 
+        // Benchmark, for local execution only
+        // [Theory]
+        // [InlineData(false)]
+        // [InlineData(true)]
+        public void BenchmarkYCbCr(bool simd)
+        {
+            int count = 2053;
+            int times = 50000;
+
+            JpegColorConverter.ComponentValues values = CreateRandomValues(3, count, 1);
+            var result = new Vector4[count];
+
+            JpegColorConverter converter = simd ? (JpegColorConverter)new JpegColorConverter.FromYCbCrVector4(8) : new JpegColorConverter.FromYCbCrBasic(8);
+
+            // Warm up:
+            converter.ConvertToRgbInplace(values);
+
+            using (new MeasureGuard(this.Output, $"{converter.GetType().Name} x {times}"))
+            {
+                for (int i = 0; i < times; i++)
+                {
+                    converter.ConvertToRgbInplace(values);
+                }
+            }
+        }
+
         private static JpegColorConverter.ComponentValues CreateRandomValues(
             int componentCount,
             int inputBufferLength,