src/share/vm/gc_implementation/g1/g1ParScanThreadState.cpp

rev 8910 : full patch for jfr

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -196,10 +196,25 @@
     }
   }
   return dest(state);
 }
 
+void G1ParScanThreadState::report_promotion_event(InCSetState const dest_state,
+                                                  oop const old, size_t word_sz, uint age,
+                                                  HeapWord * const obj_ptr, AllocationContext_t context) const {
+  assert(EnableJFR, "sanity check");
+  ParGCAllocBuffer* alloc_buf = _g1_par_allocator->alloc_buffer(dest_state, context);
+  if (alloc_buf->contains(obj_ptr)) {
+    _g1h->_gc_tracer_stw->report_promotion_in_new_plab_event(old->klass(), word_sz, age,
+                                                             dest_state.value() == InCSetState::Old,
+                                                             alloc_buf->word_sz());
+  } else {
+    _g1h->_gc_tracer_stw->report_promotion_outside_plab_event(old->klass(), word_sz, age,
+                                                              dest_state.value() == InCSetState::Old);
+  }
+}
+
 oop G1ParScanThreadState::copy_to_survivor_space(InCSetState const state,
                                                  oop const old,
                                                  markOop const old_mark) {
   const size_t word_sz = old->size();
   HeapRegion* const from_region = _g1h->heap_region_containing_raw(old);

@@ -223,10 +238,14 @@
         // This will either forward-to-self, or detect that someone else has
         // installed a forwarding pointer.
         return _g1h->handle_evacuation_failure_par(this, old);
       }
     }
+    if (EnableJFR && _g1h->_gc_tracer_stw->should_report_promotion_events()) {
+      // The events are checked individually as part of the actual commit
+      report_promotion_event(dest_state, old, word_sz, age, obj_ptr, context);
+    }
   }
 
   assert(obj_ptr != NULL, "when we get here, allocation should have succeeded");
 #ifndef PRODUCT
   // Should this evacuation fail?