Mercurial > hg > truffle
diff src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp @ 890:6cb8e9df7174
6819077: G1: first GC thread coming late into the GC.
Summary: The first worker thread is delayed when entering the GC because it clears the card count table that is used in identifying hot cards. Replace the card count table with a dynamically sized evicting hash table that includes an epoch based counter.
Reviewed-by: iveresov, tonyp
| author | johnc |
|---|---|
| date | Tue, 04 Aug 2009 16:00:17 -0700 |
| parents | df6caf649ff7 |
| children | e1fdf4fd34dc |
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--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Mon Aug 03 12:59:30 2009 -0700 +++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Tue Aug 04 16:00:17 2009 -0700 @@ -94,7 +94,14 @@ _summary(new Summary()), _abandoned_summary(new AbandonedSummary()), +#ifndef PRODUCT _cur_clear_ct_time_ms(0.0), + _min_clear_cc_time_ms(-1.0), + _max_clear_cc_time_ms(-1.0), + _cur_clear_cc_time_ms(0.0), + _cum_clear_cc_time_ms(0.0), + _num_cc_clears(0L), +#endif _region_num_young(0), _region_num_tenured(0), @@ -1648,6 +1655,15 @@ print_stats(1, "Object Copying", obj_copy_time); } } +#ifndef PRODUCT + print_stats(1, "Cur Clear CC", _cur_clear_cc_time_ms); + print_stats(1, "Cum Clear CC", _cum_clear_cc_time_ms); + print_stats(1, "Min Clear CC", _min_clear_cc_time_ms); + print_stats(1, "Max Clear CC", _max_clear_cc_time_ms); + if (_num_cc_clears > 0) { + print_stats(1, "Avg Clear CC", _cum_clear_cc_time_ms / ((double)_num_cc_clears)); + } +#endif print_stats(1, "Other", other_time_ms); for (int i = 0; i < _aux_num; ++i) { if (_cur_aux_times_set[i]) {