diff --git a/benchmarks/StringSet0/StringSet0.cpp b/benchmarks/StringSet0/StringSet0.cpp
new file mode 100644
index 000000000..50fe96d91
--- /dev/null
+++ b/benchmarks/StringSet0/StringSet0.cpp
@@ -0,0 +1,25 @@
+#include <Core/Core.h>
+
+using namespace Upp;
+
+String RandomString(int len)
+{
+	String h;
+	while(len-- > 0)
+		h.Cat(Random(96) + 32);
+	return h;
+}
+
+CONSOLE_APP_MAIN
+{
+	Buffer<String> s(10000), t(10000);
+	
+	for(int i = 0; i < 10000; i++)
+		s[i] = RandomString(Random(20));
+
+	RTIMING("Set0");
+	for(int j = 0; j < 10000; j++) {
+		for(int i = 0; i < 10000; i++)
+			t[i] = ~s[i];
+	}
+}
diff --git a/benchmarks/StringSet0/StringSet0.upp b/benchmarks/StringSet0/StringSet0.upp
new file mode 100644
index 000000000..9557657dd
--- /dev/null
+++ b/benchmarks/StringSet0/StringSet0.upp
@@ -0,0 +1,9 @@
+uses
+	Core;
+
+file
+	StringSet0.cpp;
+
+mainconfig
+	"" = "";
+
diff --git a/benchmarks/idmapBench/info.txt b/benchmarks/idmapBench/info.txt
index c72840b27..8516d8551 100644
--- a/benchmarks/idmapBench/info.txt
+++ b/benchmarks/idmapBench/info.txt
@@ -1,2 +1,4 @@
 OLD: VectorMap time: 5742398 ms
 NEW: VectorMap time: 5888610 ms
+
+VectorMap time: 5524707 ms