Mercurial > hg > truffle
diff src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp @ 3830:f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
Summary: Refactor the allocation code during GC to use the G1AllocRegion abstraction. Use separate subclasses of G1AllocRegion for survivor and old regions. Avoid BOT updates and dirty survivor cards incrementally for the former.
Reviewed-by: brutisso, johnc, ysr
| author | tonyp |
|---|---|
| date | Fri, 12 Aug 2011 11:31:06 -0400 |
| parents | 14a2fd14c0db |
| children | ff53346271fe |
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Thu Aug 11 11:36:29 2011 -0700 +++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Fri Aug 12 11:31:06 2011 -0400 @@ -859,14 +859,6 @@ calculate_young_list_target_length(); } -void G1CollectorPolicy::record_before_bytes(size_t bytes) { - _bytes_in_to_space_before_gc += bytes; -} - -void G1CollectorPolicy::record_after_bytes(size_t bytes) { - _bytes_in_to_space_after_gc += bytes; -} - void G1CollectorPolicy::record_stop_world_start() { _stop_world_start = os::elapsedTime(); } @@ -894,9 +886,8 @@ _pending_cards = _g1->pending_card_num(); _max_pending_cards = _g1->max_pending_card_num(); - _bytes_in_to_space_before_gc = 0; - _bytes_in_to_space_after_gc = 0; _bytes_in_collection_set_before_gc = 0; + _bytes_copied_during_gc = 0; YoungList* young_list = _g1->young_list(); _eden_bytes_before_gc = young_list->eden_used_bytes(); @@ -1578,8 +1569,8 @@ double survival_ratio = 0.0; if (_bytes_in_collection_set_before_gc > 0) { - survival_ratio = (double) bytes_in_to_space_during_gc() / - (double) _bytes_in_collection_set_before_gc; + survival_ratio = (double) _bytes_copied_during_gc / + (double) _bytes_in_collection_set_before_gc; } _pending_cards_seq->add((double) _pending_cards);