--- old/src/share/vm/runtime/init.cpp	2017-04-18 10:46:12.326550344 -0700
+++ new/src/share/vm/runtime/init.cpp	2017-04-18 10:46:12.210550798 -0700
@@ -32,6 +32,8 @@
 #include "prims/methodHandles.hpp"
 #include "runtime/globals.hpp"
 #include "runtime/handles.inline.hpp"
+#include "runtime/heapMonitoring.hpp"
+#include "prims/jvmtiHeapTransition.hpp"
 #include "runtime/icache.hpp"
 #include "runtime/init.hpp"
 #include "runtime/safepoint.hpp"
@@ -155,6 +157,11 @@
     CommandLineFlags::printFlags(tty, false, PrintFlagsRanges);
   }
 
+  if (HeapMonitor) {
+    fprintf(stderr, "Starting sampling with rate %d\n", HeapMonitorRate);
+    HeapThreadTransition htt(Thread::current());
+    HeapMonitoring::initialize_profiling(HeapMonitorRate);
+  }
   return JNI_OK;
 }