changeset 8936:94b68bbd87b5

8066443: Add G1 support for promotion event Reviewed-by: tschatzl
author sfriberg
date Wed, 02 Sep 2015 09:51:05 +0200
parents 2cad024257e9
children 48b57bb45fe5
files src/share/vm/gc/g1/g1ParScanThreadState.cpp src/share/vm/gc/g1/g1ParScanThreadState.hpp src/share/vm/gc/shared/gcTrace.cpp src/share/vm/gc/shared/gcTrace.hpp
diffstat 4 files changed, 29 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/gc/g1/g1ParScanThreadState.cpp	Wed Sep 02 09:14:04 2015 +0200
+++ b/src/share/vm/gc/g1/g1ParScanThreadState.cpp	Wed Sep 02 09:51:05 2015 +0200
@@ -186,6 +186,21 @@
   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,
+                                                  const AllocationContext_t context) const {
+  G1PLAB* alloc_buf = _plab_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) {
@@ -219,6 +234,10 @@
         return handle_evacuation_failure_par(old, old_mark);
       }
     }
+    if (_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");
--- a/src/share/vm/gc/g1/g1ParScanThreadState.hpp	Wed Sep 02 09:14:04 2015 +0200
+++ b/src/share/vm/gc/g1/g1ParScanThreadState.hpp	Wed Sep 02 09:51:05 2015 +0200
@@ -173,6 +173,10 @@
                                   bool previous_plab_refill_failed);
 
   inline InCSetState next_state(InCSetState const state, markOop const m, uint& age);
+
+  void report_promotion_event(InCSetState const dest_state,
+                              oop const old, size_t word_sz, uint age,
+                              HeapWord * const obj_ptr, const AllocationContext_t context) const;
  public:
 
   oop copy_to_survivor_space(InCSetState const state, oop const obj, markOop const old_mark);
--- a/src/share/vm/gc/shared/gcTrace.cpp	Wed Sep 02 09:14:04 2015 +0200
+++ b/src/share/vm/gc/shared/gcTrace.cpp	Wed Sep 02 09:51:05 2015 +0200
@@ -173,6 +173,11 @@
   _tenuring_threshold = tenuring_threshold;
 }
 
+bool YoungGCTracer::should_report_promotion_events() const {
+  return should_report_promotion_in_new_plab_event() ||
+          should_report_promotion_outside_plab_event();
+}
+
 bool YoungGCTracer::should_report_promotion_in_new_plab_event() const {
   return should_send_promotion_in_new_plab_event();
 }
--- a/src/share/vm/gc/shared/gcTrace.hpp	Wed Sep 02 09:14:04 2015 +0200
+++ b/src/share/vm/gc/shared/gcTrace.hpp	Wed Sep 02 09:51:05 2015 +0200
@@ -172,6 +172,7 @@
    *
    * plab_size is the size of the newly allocated PLAB in bytes.
    */
+  bool should_report_promotion_events() const;
   bool should_report_promotion_in_new_plab_event() const;
   bool should_report_promotion_outside_plab_event() const;
   void report_promotion_in_new_plab_event(Klass* klass, size_t obj_size,