771   _conc_refine_cards++;
 772 
 773   return update_rs_cl->has_refs_into_cset();
 774 }
 775 
 776 void G1RemSet::print_periodic_summary_info(const char* header, uint period_count) {
 777   if ((G1SummarizeRSetStatsPeriod > 0) && log_is_enabled(Trace, gc, remset) &&
 778       (period_count % G1SummarizeRSetStatsPeriod == 0)) {
 779 
 780     if (!_prev_period_summary.initialized()) {
 781       _prev_period_summary.initialize(this);
 782     }
 783 
 784     G1RemSetSummary current;
 785     current.initialize(this);
 786     _prev_period_summary.subtract_from(&current);
 787 
 788     Log(gc, remset) log;
 789     log.trace("%s", header);
 790     ResourceMark rm;
 791     _prev_period_summary.print_on(log.trace_stream());

 792 
 793     _prev_period_summary.set(&current);
 794   }
 795 }
 796 
 797 void G1RemSet::print_summary_info() {
 798   Log(gc, remset, exit) log;
 799   if (log.is_trace()) {
 800     log.trace(" Cumulative RS summary");
 801     G1RemSetSummary current;
 802     current.initialize(this);
 803     ResourceMark rm;
 804     current.print_on(log.trace_stream());

 805   }
 806 }
 807 
 808 void G1RemSet::prepare_for_verify() {
 809   if (G1HRRSFlushLogBuffersOnVerify &&
 810       (VerifyBeforeGC || VerifyAfterGC)
 811       &&  (!_g1->collector_state()->full_collection() || G1VerifyRSetsDuringFullGC)) {
 812     cleanupHRRS();
 813     _g1->set_refine_cte_cl_concurrency(false);
 814     if (SafepointSynchronize::is_at_safepoint()) {
 815       DirtyCardQueueSet& dcqs = JavaThread::dirty_card_queue_set();
 816       dcqs.concatenate_logs();
 817     }
 818 
 819     bool use_hot_card_cache = _hot_card_cache->use_cache();
 820     _hot_card_cache->set_use_cache(false);
 821 
 822     DirtyCardQueue into_cset_dcq(&_into_cset_dirty_card_queue_set);
 823     update_rem_set(&into_cset_dcq, NULL, 0);
 824     _into_cset_dirty_card_queue_set.clear();

 771   _conc_refine_cards++;
 772 
 773   return update_rs_cl->has_refs_into_cset();
 774 }
 775 
 776 void G1RemSet::print_periodic_summary_info(const char* header, uint period_count) {
 777   if ((G1SummarizeRSetStatsPeriod > 0) && log_is_enabled(Trace, gc, remset) &&
 778       (period_count % G1SummarizeRSetStatsPeriod == 0)) {
 779 
 780     if (!_prev_period_summary.initialized()) {
 781       _prev_period_summary.initialize(this);
 782     }
 783 
 784     G1RemSetSummary current;
 785     current.initialize(this);
 786     _prev_period_summary.subtract_from(&current);
 787 
 788     Log(gc, remset) log;
 789     log.trace("%s", header);
 790     ResourceMark rm;
 791     LogStream ls(log.trace());
 792     _prev_period_summary.print_on(&ls);
 793 
 794     _prev_period_summary.set(&current);
 795   }
 796 }
 797 
 798 void G1RemSet::print_summary_info() {
 799   Log(gc, remset, exit) log;
 800   if (log.is_trace()) {
 801     log.trace(" Cumulative RS summary");
 802     G1RemSetSummary current;
 803     current.initialize(this);
 804     ResourceMark rm;
 805     LogStream ls(log.trace());
 806     current.print_on(&ls);
 807   }
 808 }
 809 
 810 void G1RemSet::prepare_for_verify() {
 811   if (G1HRRSFlushLogBuffersOnVerify &&
 812       (VerifyBeforeGC || VerifyAfterGC)
 813       &&  (!_g1->collector_state()->full_collection() || G1VerifyRSetsDuringFullGC)) {
 814     cleanupHRRS();
 815     _g1->set_refine_cte_cl_concurrency(false);
 816     if (SafepointSynchronize::is_at_safepoint()) {
 817       DirtyCardQueueSet& dcqs = JavaThread::dirty_card_queue_set();
 818       dcqs.concatenate_logs();
 819     }
 820 
 821     bool use_hot_card_cache = _hot_card_cache->use_cache();
 822     _hot_card_cache->set_use_cache(false);
 823 
 824     DirtyCardQueue into_cset_dcq(&_into_cset_dirty_card_queue_set);
 825     update_rem_set(&into_cset_dcq, NULL, 0);
 826     _into_cset_dirty_card_queue_set.clear();