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src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp
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rev 7975 : [mq]: is_candidate
*** 352,373 ****
return is_obj_ill(obj, heap_region_containing(obj));
}
inline void G1CollectedHeap::set_humongous_is_live(oop obj) {
uint region = addr_to_region((HeapWord*)obj);
! // We not only set the "live" flag in the humongous_is_live table, but also
// reset the entry in the _in_cset_fast_test table so that subsequent references
// to the same humongous object do not go into the slow path again.
// This is racy, as multiple threads may at the same time enter here, but this
// is benign.
! // During collection we only ever set the "live" flag, and only ever clear the
// entry in the in_cset_fast_table.
// We only ever evaluate the contents of these tables (in the VM thread) after
// having synchronized the worker threads with the VM thread, or in the same
// thread (i.e. within the VM thread).
! if (!_humongous_is_live.is_live(region)) {
! _humongous_is_live.set_live(region);
_in_cset_fast_test.clear_humongous(region);
}
}
#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
--- 352,373 ----
return is_obj_ill(obj, heap_region_containing(obj));
}
inline void G1CollectedHeap::set_humongous_is_live(oop obj) {
uint region = addr_to_region((HeapWord*)obj);
! // Clear the flag in the humongous_reclaim_candidates table. Also
// reset the entry in the _in_cset_fast_test table so that subsequent references
// to the same humongous object do not go into the slow path again.
// This is racy, as multiple threads may at the same time enter here, but this
// is benign.
! // During collection we only ever clear the "candidate" flag, and only ever clear the
// entry in the in_cset_fast_table.
// We only ever evaluate the contents of these tables (in the VM thread) after
// having synchronized the worker threads with the VM thread, or in the same
// thread (i.e. within the VM thread).
! if (is_humongous_reclaim_candidate(region)) {
! remove_humongous_reclaim_candidate(region);
_in_cset_fast_test.clear_humongous(region);
}
}
#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
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