src/share/vm/trace/trace.xml

*** 187,196 ****
--- 187,203 ----
        <value type="ULONG" field="gcId" label="GC ID" relation="GC_ID"/>
        <value type="REFERENCETYPE" field="type" label="Type" />
        <value type="ULONG" field="count" label="Total Count" />
      </event>
  
+     <event id="ObjectCountAfterGC" path="vm/gc/detailed/object_count_after_gc" is_instant="true" label="Object Count">
+       <value type="ULONG" field="gcId"  label="GC ID" relation="GC_ID" />
+       <value type="CLASS" field="class" label="Class" />
+       <value type="LONG" field="count" label="Count" />
+       <value type="BYTES64" field="totalSize" label="Total Size" />
+     </event>
+ 
      <event id="PromotionFailed" path="vm/gc/detailed/promotion_failed" label="Promotion Failed" is_instant="true"
             description="Promotion of an object failed">
        <value type="ULONG" field="gcId" label="GC ID" relation="GC_ID"/>
        <value type="BYTES64" field="objectCount" label="Object Count"/>
        <value type="BYTES64" field="firstSize" label="First Failed Object Size"/>