diff -r fd5909432541 -r 07159dd8326a src/base/statistics.hh
--- a/src/base/statistics.hh	Mon Feb 13 17:42:35 2012 -0600
+++ b/src/base/statistics.hh	Mon Feb 13 17:42:37 2012 -0600
@@ -3133,6 +3133,12 @@
  */
 void registerResetCallback(Callback *cb);
 
+/**
+ * Register a callback that should be called whenever statistics are
+ * about to be dumped
+ */
+void registerDumpCallback(Callback *cb);
+
 std::list<Info *> &statsList();
 
 } // namespace Stats
diff -r fd5909432541 -r 07159dd8326a src/base/statistics.cc
--- a/src/base/statistics.cc	Mon Feb 13 17:42:35 2012 -0600
+++ b/src/base/statistics.cc	Mon Feb 13 17:42:37 2012 -0600
@@ -433,6 +433,7 @@
     return root ? root->str() : "";
 }
 
+CallbackQueue dumpQueue;
 CallbackQueue resetQueue;
 
 void
@@ -441,6 +442,12 @@
     resetQueue.add(cb);
 }
 
+void
+registerDumpCallback(Callback *cb)
+{
+    dumpQueue.add(cb);
+}
+
 } // namespace Stats
 
 void
diff -r fd5909432541 -r 07159dd8326a src/python/m5/stats/__init__.py
--- a/src/python/m5/stats/__init__.py	Mon Feb 13 17:42:35 2012 -0600
+++ b/src/python/m5/stats/__init__.py	Mon Feb 13 17:42:37 2012 -0600
@@ -101,6 +101,8 @@
         return
     lastDump = curTick
 
+    internal.stats.processDumpQueue()
+
     prepare()
 
     for output in outputList:
diff -r fd5909432541 -r 07159dd8326a src/python/swig/stats.i
--- a/src/python/swig/stats.i	Mon Feb 13 17:42:35 2012 -0600
+++ b/src/python/swig/stats.i	Mon Feb 13 17:42:37 2012 -0600
@@ -71,6 +71,13 @@
     resetQueue.process();
 }
 
+inline void
+processDumpQueue()
+{
+    extern CallbackQueue dumpQueue;
+    dumpQueue.process();
+}
+
 inline char *
 PCC(const char *string)
 {
@@ -146,6 +153,7 @@
                     Tick when = curTick(), Tick repeat = 0);
 
 void processResetQueue();
+void processDumpQueue();
 
 std::list<Info *> &statsList();