--- old/src/share/vm/trace/trace.xml	2014-08-22 15:27:34.940108934 -0700
+++ new/src/share/vm/trace/trace.xml	2014-08-22 15:27:34.856108937 -0700
@@ -425,6 +425,18 @@
       <value type="CLASS" field="class" label="Class" description="Class of allocated object"/>
       <value type="BYTES64" field="allocationSize" label="Allocation Size"/>
     </event>
+
+    <!-- Promotion event -->
+    <event id="PromotionSample" path="java/promotion_sample" label="Promotion Sample"
+        description="Object was copied to a new Promotion Local Allocation Buffer (PLAB)" has_thread="true" has_stacktrace="false" is_instant="true">
+      <value type="UINT" field="gcId" label="GC ID" relation="GC_ID" description="ID of GC during which the object was promoted."/>
+      <value type="CLASS" field="class" label="Class" description="Class of promoted object."/>
+      <value type="BYTES64" field="objectSize" label="Object Size" description="Size of promoted object."/>
+      <value type="UINT" field="age" label="Object Age" description="Age of promoted object."/>
+      <value type="BOOLEAN" field="tenured" label="Tenured" description="Object was promoted to Old Space."/>
+      <value type="BOOLEAN" field="directAllocation" label="Direct Allocation" description="Object was promoted to directly to heap without using a PLAB."/>
+      <value type="BYTES64" field="plabSize" label="PLAB Size" description="Size of the PLAB allocated as part of the promotion."/>
+    </event>
   </events>
 
   <xi:include href="../../../closed/share/vm/trace/traceeventtypes.xml" xmlns:xi="http://www.w3.org/2001/XInclude">