< prev index next >

src/share/vm/gc/g1/g1CollectorPolicy.cpp

Print this page

        

@@ -1116,18 +1116,19 @@
   }
 
   _short_lived_surv_rate_group->start_adding_regions();
   // Do that for any other surv rate groups
 
+  double scan_hcc_time_ms = ConcurrentG1Refine::hot_card_cache_enabled() ? average_time_ms(G1GCPhaseTimes::ScanHCC) : 0.0;
+
   if (update_stats) {
     double cost_per_card_ms = 0.0;
-    double cost_scan_hcc = average_time_ms(G1GCPhaseTimes::ScanHCC);
     if (_pending_cards > 0) {
-      cost_per_card_ms = (average_time_ms(G1GCPhaseTimes::UpdateRS) - cost_scan_hcc) / (double) _pending_cards;
+      cost_per_card_ms = (average_time_ms(G1GCPhaseTimes::UpdateRS) - scan_hcc_time_ms) / (double) _pending_cards;
       _cost_per_card_ms_seq->add(cost_per_card_ms);
     }
-    _cost_scan_hcc_seq->add(cost_scan_hcc);
+    _cost_scan_hcc_seq->add(scan_hcc_time_ms);
 
     double cost_per_entry_ms = 0.0;
     if (cards_scanned > 10) {
       cost_per_entry_ms = average_time_ms(G1GCPhaseTimes::ScanRS) / (double) cards_scanned;
       if (collector_state()->last_gc_was_young()) {

@@ -1213,12 +1214,10 @@
   _ihop_control->send_trace_event(_g1->gc_tracer_stw());
 
   // Note that _mmu_tracker->max_gc_time() returns the time in seconds.
   double update_rs_time_goal_ms = _mmu_tracker->max_gc_time() * MILLIUNITS * G1RSetUpdatingPauseTimePercent / 100.0;
 
-  double scan_hcc_time_ms = average_time_ms(G1GCPhaseTimes::ScanHCC);
-
   if (update_rs_time_goal_ms < scan_hcc_time_ms) {
     log_debug(gc, ergo, refine)("Adjust concurrent refinement thresholds (scanning the HCC expected to take longer than Update RS time goal)."
                                 "Update RS time goal: %1.2fms Scan HCC time: %1.2fms",
                                 update_rs_time_goal_ms, scan_hcc_time_ms);
 
< prev index next >