diff --git a/src/test/java/net/openhft/chronicle/map/LataTest.java b/src/test/java/net/openhft/chronicle/map/LataTest.java
new file mode 100644
index 000000000..2021bbce5
--- /dev/null
+++ b/src/test/java/net/openhft/chronicle/map/LataTest.java
@@ -0,0 +1,54 @@
+package net.openhft.chronicle.map;
+
+
+import net.openhft.lang.values.StringValue;
+
+public class LataTest {
+
+    public interface IData {
+        int getData();
+        void setData(int data);
+        int addAtomicData(int addData);
+    }
+
+    private static int max = 6000000;
+    private static int run = 100;
+    private static int currentRun = 0;
+
+    public static void main(String args[]) throws Exception {
+        long startTime = 0;
+        long endTime = 0;
+
+        ChronicleMapBuilder<StringValue, IData> builder = ChronicleMapBuilder
+                .of(StringValue.class, IData.class)
+                .entries(max + 1000000);
+
+        ChronicleMap<StringValue, IData> map = builder.create();
+        StringValue[] keys = new StringValue[300];
+        for (int i = 0; i < keys.length; i++) {
+            keys[i] = map.newKeyInstance();
+            keys[i].setValue("" + i);
+        }
+        IData value = map.newValueInstance();
+        IData dataValue = map.newValueInstance();
+        for (int index = 0; index < run; index++) {
+            currentRun++;
+            startTime = System.nanoTime();
+            for (int i = 0; i < max; i++) {
+                StringValue key = keys[i % keys.length];
+                if (!(map.containsKey(key))) {
+                    value.setData(i);
+                    map.put(key, value);
+                } else {
+                    value = map.acquireUsing(key, dataValue);
+                    value.addAtomicData(10);
+                }
+            }
+            endTime = System.nanoTime();
+            map.clear();
+            System.out.println("Run" + currentRun + "Time taken"
+                    + (endTime - startTime));
+        }
+        map.close();
+    }
+}