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

rev 6540 : 8054819: Rename HeapRegionSeq to HeapRegionManager
Reviewed-by: jwilhelm, jmasa
rev 6541 : 8055919: Remove dead code in G1 concurrent marking code
Reviewed-by: jmasa, jwilhelm

@@ -431,14 +431,10 @@
   for (int i = 0; i < _index; i += 1) {
     f->do_oop(&_base[i]);
   }
 }
 
-bool ConcurrentMark::not_yet_marked(oop obj) const {
-  return _g1h->is_obj_ill(obj);
-}
-
 CMRootRegions::CMRootRegions() :
   _young_list(NULL), _cm(NULL), _scan_in_progress(false),
   _should_abort(false),  _next_survivor(NULL) { }
 
 void CMRootRegions::init(G1CollectedHeap* g1h, ConcurrentMark* cm) {

@@ -1114,44 +1110,30 @@
     CMTask* the_task = _cm->task(worker_id);
     the_task->record_start_time();
     if (!_cm->has_aborted()) {
       do {
         double start_vtime_sec = os::elapsedVTime();
-        double start_time_sec = os::elapsedTime();
         double mark_step_duration_ms = G1ConcMarkStepDurationMillis;
 
         the_task->do_marking_step(mark_step_duration_ms,
                                   true  /* do_termination */,
                                   false /* is_serial*/);
 
-        double end_time_sec = os::elapsedTime();
         double end_vtime_sec = os::elapsedVTime();
         double elapsed_vtime_sec = end_vtime_sec - start_vtime_sec;
-        double elapsed_time_sec = end_time_sec - start_time_sec;
         _cm->clear_has_overflown();
 
-        bool ret = _cm->do_yield_check(worker_id);
+        _cm->do_yield_check(worker_id);
 
         jlong sleep_time_ms;
         if (!_cm->has_aborted() && the_task->has_aborted()) {
           sleep_time_ms =
             (jlong) (elapsed_vtime_sec * _cm->sleep_factor() * 1000.0);
           SuspendibleThreadSet::leave();
           os::sleep(Thread::current(), sleep_time_ms, false);
           SuspendibleThreadSet::join();
         }
-        double end_time2_sec = os::elapsedTime();
-        double elapsed_time2_sec = end_time2_sec - start_time_sec;
-
-#if 0
-          gclog_or_tty->print_cr("CM: elapsed %1.4lf ms, sleep %1.4lf ms, "
-                                 "overhead %1.4lf",
-                                 elapsed_vtime_sec * 1000.0, (double) sleep_time_ms,
-                                 the_task->conc_overhead(os::elapsedTime()) * 8.0);
-          gclog_or_tty->print_cr("elapsed time %1.4lf ms, time 2: %1.4lf ms",
-                                 elapsed_time_sec * 1000.0, elapsed_time2_sec * 1000.0);
-#endif
       } while (!_cm->has_aborted() && the_task->has_aborted());
     }
     the_task->record_end_time();
     guarantee(!the_task->has_aborted() || _cm->has_aborted(), "invariant");
 

@@ -2945,15 +2927,10 @@
 
 void ConcurrentMark::clearRangeNextBitmap(MemRegion mr) {
   _nextMarkBitMap->clearRange(mr);
 }
 
-void ConcurrentMark::clearRangeBothBitmaps(MemRegion mr) {
-  clearRangePrevBitmap(mr);
-  clearRangeNextBitmap(mr);
-}
-
 HeapRegion*
 ConcurrentMark::claim_region(uint worker_id) {
   // "checkpoint" the finger
   HeapWord* finger = _finger;
 

@@ -3495,21 +3472,10 @@
   } else {
     return false;
   }
 }
 
-bool ConcurrentMark::containing_card_is_marked(void* p) {
-  size_t offset = pointer_delta(p, _g1h->reserved_region().start(), 1);
-  return _card_bm.at(offset >> CardTableModRefBS::card_shift);
-}
-
-bool ConcurrentMark::containing_cards_are_marked(void* start,
-                                                 void* last) {
-  return containing_card_is_marked(start) &&
-         containing_card_is_marked(last);
-}
-
 #ifndef PRODUCT
 // for debugging purposes
 void ConcurrentMark::print_finger() {
   gclog_or_tty->print_cr("heap ["PTR_FORMAT", "PTR_FORMAT"), global finger = "PTR_FORMAT,
                          p2i(_heap_start), p2i(_heap_end), p2i(_finger));

@@ -3758,11 +3724,11 @@
   _interval_start_time_ms = curr_time_ms;
   _all_clock_intervals_ms.add(last_interval_ms);
 
   if (_cm->verbose_medium()) {
       gclog_or_tty->print_cr("[%u] regular clock, interval = %1.2lfms, "
-                        "scanned = %d%s, refs reached = %d%s",
+                        "scanned = "SIZE_FORMAT"%s, refs reached = "SIZE_FORMAT"%s",
                         _worker_id, last_interval_ms,
                         _words_scanned,
                         (_words_scanned >= _words_scanned_limit) ? " (*)" : "",
                         _refs_reached,
                         (_refs_reached >= _refs_reached_limit) ? " (*)" : "");