src/hotspot/share/gc/g1/g1RemSet.cpp

8196341: Add JFR events for parallel phases of G1

*** 38,47 ****
--- 38,48 ----
  #include "gc/g1/heapRegion.inline.hpp"
  #include "gc/g1/heapRegionManager.inline.hpp"
  #include "gc/g1/heapRegionRemSet.hpp"
  #include "gc/shared/gcTraceTime.inline.hpp"
  #include "gc/shared/suspendibleThreadSet.hpp"
+ #include "jfr/jfrEvents.hpp"
  #include "memory/iterator.hpp"
  #include "memory/resourceArea.hpp"
  #include "oops/access.inline.hpp"
  #include "oops/oop.inline.hpp"
  #include "runtime/os.hpp"
***************
*** 337,346 ****
--- 338,348 ----
    _scan_objs_on_card_cl->trim_queue_partially();
    _cards_scanned++;
  }
  
  void G1ScanRSForRegionClosure::scan_rem_set_roots(HeapRegion* r) {
+   EventGCPhaseParallel event;
    uint const region_idx = r->hrm_index();
  
    if (_scan_state->claim_iter(region_idx)) {
      // If we ever free the collection set concurrently, we should also
      // clear the card table concurrently therefore we won't need to
***************
*** 390,403 ****
--- 392,408 ----
  
      MemRegion const mr(card_start, MIN2(card_start + BOTConstants::N_words, top));
  
      scan_card(mr, region_idx_for_card);
    }
+   event.commit(GCId::current(), _worker_i, G1GCPhaseTimes::phase_name(G1GCPhaseTimes::ScanRS));
  }
  
  void G1ScanRSForRegionClosure::scan_strong_code_roots(HeapRegion* r) {
+   EventGCPhaseParallel event;
    r->strong_code_roots_do(_pss->closures()->weak_codeblobs());
+   event.commit(GCId::current(), _worker_i, G1GCPhaseTimes::phase_name(G1GCPhaseTimes::CodeRoots));
  }
  
  bool G1ScanRSForRegionClosure::do_heap_region(HeapRegion* r) {
    assert(r->in_collection_set(),
           "Should only be called on elements of the collection set but region %u is not.",