Mercurial > hg > truffle
diff src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp @ 2188:c33825b68624
6923430: G1: assert(res != 0,"This should have worked.")
7007446: G1: expand the heap with a single step, not one region at a time
Summary: Changed G1CollectedHeap::expand() to expand the committed space by calling VirtualSpace::expand_by() once rather than for every region in the expansion amount. This allows the success or failure of the expansion to be determined before creating any heap regions. Introduced a develop flag G1ExitOnExpansionFailure (false by default) that, when true, will exit the VM if the expansion of the committed space fails. Finally G1CollectedHeap::expand() returns a status back to it's caller so that the caller knows whether to attempt the allocation.
Reviewed-by: brutisso, tonyp
author | johnc |
---|---|
date | Wed, 02 Feb 2011 10:41:20 -0800 |
parents | 0fa27f37d4d4 |
children | c93aa6caa02f |
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--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Tue Feb 01 14:05:46 2011 +0100 +++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Wed Feb 02 10:41:20 2011 -0800 @@ -2011,7 +2011,7 @@ // space, whichever is smaller, bounded below by a minimum // expansion (unless that's all that's left.) const size_t min_expand_bytes = 1*M; - size_t reserved_bytes = _g1->g1_reserved_obj_bytes(); + size_t reserved_bytes = _g1->max_capacity(); size_t committed_bytes = _g1->capacity(); size_t uncommitted_bytes = reserved_bytes - committed_bytes; size_t expand_bytes;