diff --git a/benchmarks/InVectorCache/InVectorCache.cpp b/benchmarks/InVectorCache/InVectorCache.cpp
new file mode 100644
index 000000000..75254b459
--- /dev/null
+++ b/benchmarks/InVectorCache/InVectorCache.cpp
@@ -0,0 +1,55 @@
+#include <Core/Core.h>
+
+using namespace Upp;
+
+CONSOLE_APP_MAIN
+{
+	int N = 10;
+	InVector<int> x;
+	for(int i = 0; i < 1000000; i++)
+		x.Add(Random(1000));
+	{
+		RTIMING("Simple scan");
+		int m = 0;
+		for(int j = 0; j < N; j++) {
+			for(int i = 0; i < x.GetCount(); i++)
+				m += x[i];
+			for(int i = x.GetCount(); --i >= 0;)
+				m += x[i];
+		}
+		RDUMP(m);
+	}
+	{
+		RTIMING("Single InVector, problematic scan");
+		int m = 0;
+		for(int j = 0; j < N; j++) {
+			for(int i = 0; i < x.GetCount(); i++)
+				m += x[i] + x[x.GetCount() - i - 1];
+		}
+		RDUMP(m);
+	}
+	{
+		InVector<int> y;
+		y <<= x;
+		RTIMING("Two InVectors");
+		int m = 0;
+		for(int j = 0; j < N; j++) {
+			for(int i = 0; i < x.GetCount(); i++)
+				m += x[i] + y[i];
+		}
+		RDUMP(m);
+	}
+	{
+		InVector<int> y;
+		y <<= x;
+		RTIMING("Two InVectors, two simple scans");
+		int m = 0;
+		for(int j = 0; j < N; j++) {
+			for(int i = 0; i < x.GetCount(); i++)
+				m += x[i];
+			for(int i = y.GetCount(); --i >= 0;)
+				m += y[i];
+		}
+		RDUMP(m);
+	}
+}
diff --git a/benchmarks/InVectorCache/InVectorCache.upp b/benchmarks/InVectorCache/InVectorCache.upp
new file mode 100644
index 000000000..b27cc7e43
--- /dev/null
+++ b/benchmarks/InVectorCache/InVectorCache.upp
@@ -0,0 +1,9 @@
+uses
+	Core;
+
+file
+	InVectorCache.cpp;
+
+mainconfig
+	"" = "SSE2";
+
diff --git a/benchmarks/InVectorCache/init b/benchmarks/InVectorCache/init
new file mode 100644
index 000000000..2f74ccc17
--- /dev/null
+++ b/benchmarks/InVectorCache/init
@@ -0,0 +1,4 @@
+#ifndef _InVectorCache_icpp_init_stub
+#define _InVectorCache_icpp_init_stub
+#include "Core/init"
+#endif