diff --git a/benchmarks/CoSort/CoSort.cpp b/benchmarks/CoSort/CoSort.cpp
new file mode 100644
index 000000000..51c95df22
--- /dev/null
+++ b/benchmarks/CoSort/CoSort.cpp
@@ -0,0 +1,26 @@
+#include <Core/Core.h>
+
+using namespace Upp;
+
+CONSOLE_APP_MAIN
+{
+	StdLogSetup(LOG_FILE|LOG_COUT);
+
+	Vector<String> h;
+	for(int i = 0; i < 10000000; i++)
+		h.Add(AsString(Random()));
+	
+	{
+		auto h1 = clone(h);
+		TimeStop tm;
+		Sort(h1);
+		RLOG("Sort " << tm);
+	}
+
+	{
+		auto h1 = clone(h);
+		TimeStop tm;
+		CoSort(h1);
+		RLOG("CoSort " << tm);
+	}
+}
diff --git a/benchmarks/CoSort/CoSort.upp b/benchmarks/CoSort/CoSort.upp
new file mode 100644
index 000000000..7e521a0e3
--- /dev/null
+++ b/benchmarks/CoSort/CoSort.upp
@@ -0,0 +1,9 @@
+uses
+	Core;
+
+file
+	CoSort.cpp;
+
+mainconfig
+	"" = "MT";
+
diff --git a/benchmarks/CoSort/init b/benchmarks/CoSort/init
new file mode 100644
index 000000000..0344e50d3
--- /dev/null
+++ b/benchmarks/CoSort/init
@@ -0,0 +1,4 @@
+#ifndef _CoSort_icpp_init_stub
+#define _CoSort_icpp_init_stub
+#include "Core/init"
+#endif