diff -r da59531e1fdf -r db49d511817a src/share/vm/services/memReporter.cpp
--- a/src/share/vm/services/memReporter.cpp	Wed Nov 08 09:07:05 2017 -0500
+++ b/src/share/vm/services/memReporter.cpp	Mon Jul 24 15:19:46 2017 -0400
@@ -312,11 +312,16 @@
 }
 
 void MemSummaryDiffReporter::print_malloc_diff(size_t current_amount, size_t current_count,
-    size_t early_amount, size_t early_count) const {
+    size_t early_amount, size_t early_count, MEMFLAGS flags) const {
   const char* scale = current_scale();
   outputStream* out = output();
 
   out->print("malloc=" SIZE_FORMAT "%s", amount_in_current_scale(current_amount), scale);
+  // Report type only if it is valid
+  if (flags != mtNone) {
+    out->print(" type=%s", NMTUtil::flag_to_name(flags));
+  }
+
   long amount_diff = diff_in_current_scale(current_amount, early_amount);
   if (amount_diff != 0) {
     out->print(" %+ld%s", amount_diff, scale);
@@ -445,7 +450,7 @@
         diff_in_current_scale(current_malloc_amount, early_malloc_amount) != 0) {
       out->print("%28s(", " ");
       print_malloc_diff(current_malloc_amount, (flag == mtChunk) ? 0 : current_malloc->malloc_count(),
-        early_malloc_amount, early_malloc->malloc_count());
+        early_malloc_amount, early_malloc->malloc_count(), mtNone);
       out->print_cr(")");
     }
 
@@ -493,8 +498,8 @@
 }
 
 void MemDetailDiffReporter::diff_malloc_sites() const {
-  MallocSiteIterator early_itr = _early_baseline.malloc_sites(MemBaseline::by_site);
-  MallocSiteIterator current_itr = _current_baseline.malloc_sites(MemBaseline::by_site);
+  MallocSiteIterator early_itr = _early_baseline.malloc_sites(MemBaseline::by_site_and_type);
+  MallocSiteIterator current_itr = _current_baseline.malloc_sites(MemBaseline::by_site_and_type);
 
   const MallocSite* early_site   = early_itr.next();
   const MallocSite* current_site = current_itr.next();
@@ -557,22 +562,23 @@
 
 void MemDetailDiffReporter::new_malloc_site(const MallocSite* malloc_site) const {
   diff_malloc_site(malloc_site->call_stack(), malloc_site->size(), malloc_site->count(),
-    0, 0);
+    0, 0, malloc_site->flags());
 }
 
 void MemDetailDiffReporter::old_malloc_site(const MallocSite* malloc_site) const {
   diff_malloc_site(malloc_site->call_stack(), 0, 0, malloc_site->size(),
-    malloc_site->count());
+    malloc_site->count(), malloc_site->flags());
 }
 
 void MemDetailDiffReporter::diff_malloc_site(const MallocSite* early,
   const MallocSite* current)  const {
+  assert(early->flags() == current->flags(), "Must be the same memory type");
   diff_malloc_site(current->call_stack(), current->size(), current->count(),
-    early->size(), early->count());
+    early->size(), early->count(), early->flags());
 }
 
 void MemDetailDiffReporter::diff_malloc_site(const NativeCallStack* stack, size_t current_size,
-  size_t current_count, size_t early_size, size_t early_count) const {
+  size_t current_count, size_t early_size, size_t early_count, MEMFLAGS flags) const {
   outputStream* out = output();
 
   assert(stack != NULL, "NULL stack");
@@ -584,7 +590,7 @@
   stack->print_on(out);
   out->print("%28s (", " ");
   print_malloc_diff(current_size, current_count,
-    early_size, early_count);
+    early_size, early_count, flags);
 
   out->print_cr(")\n");
 }