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diff --git a/vespajlib/developernotes/XMLMicroBenchmark.java b/vespajlib/developernotes/XMLMicroBenchmark.java
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+++ b/vespajlib/developernotes/XMLMicroBenchmark.java
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+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.text;
+
+/**
+ * It is what it says
+ *
+ * @author <a href="mailto:bratseth@yahoo-inc.com">Jon Bratseth</a>
+ */
+public class XMLMicroBenchmark {
+
+    public void benchmark(int sizeInK) {
+        System.out.println("Warming up...");
+        escapeStrings(1000); // warm-up
+
+        System.out.println("Starting benchmark...");
+        long startTime=System.currentTimeMillis();
+        escapeStrings(sizeInK);
+        long endTime=System.currentTimeMillis();
+        System.out.println("Done.\nEscaping " + sizeInK + "k strings took " + (endTime-startTime) + "ms");
+    }
+
+    private void escapeStrings(int sizeInK) {
+        for (int i=0; i<1000*sizeInK; i++) {
+            XML.xmlEscape("foobar" + i,true,true,'\u001f');
+        }
+    }
+
+    public static void main(String[] args) {
+        new XMLMicroBenchmark().benchmark(10000);
+    }
+
+}