Mercurial > hg > graal-compiler
comparison src/share/vm/gc_implementation/g1/g1_globals.hpp @ 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 |
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date | Wed, 02 Feb 2011 10:41:20 -0800 |
parents | 234761c55641 |
children | 02f49b66361a |
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2187:986b2844f7a2 | 2188:c33825b68624 |
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299 "It stresses the concurrent region freeing operation") \ | 299 "It stresses the concurrent region freeing operation") \ |
300 \ | 300 \ |
301 develop(uintx, G1StressConcRegionFreeingDelayMillis, 0, \ | 301 develop(uintx, G1StressConcRegionFreeingDelayMillis, 0, \ |
302 "Artificial delay during concurrent region freeing") \ | 302 "Artificial delay during concurrent region freeing") \ |
303 \ | 303 \ |
304 develop(bool, ReduceInitialCardMarksForG1, false, \ | 304 develop(bool, ReduceInitialCardMarksForG1, false, \ |
305 "When ReduceInitialCardMarks is true, this flag setting " \ | 305 "When ReduceInitialCardMarks is true, this flag setting " \ |
306 " controls whether G1 allows the RICM optimization") | 306 " controls whether G1 allows the RICM optimization") \ |
307 \ | |
308 develop(bool, G1ExitOnExpansionFailure, false, \ | |
309 "Raise a fatal VM exit out of memory failure in the event " \ | |
310 " that heap expansion fails due to running out of swap.") | |
307 | 311 |
308 G1_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG) | 312 G1_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG) |
309 | 313 |
310 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_GLOBALS_HPP | 314 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_GLOBALS_HPP |