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comparison src/share/vm/runtime/virtualspace.cpp @ 22974:c2ce24504334

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8049864: TestParallelHeapSizeFlags fails with unexpected heap size Reviewed-by: sjohanss, jmasa
author ehelin
date Tue, 24 Jun 2014 15:50:50 +0200
parents 340ca8812af9
children 5788dbd1f2d6
comparison
equal deleted inserted replaced
22973:340ca8812af9 22974:c2ce24504334
51 ReservedSpace::ReservedSpace() : _base(NULL), _size(0), _noaccess_prefix(0), 51 ReservedSpace::ReservedSpace() : _base(NULL), _size(0), _noaccess_prefix(0),
52 _alignment(0), _special(false), _executable(false) { 52 _alignment(0), _special(false), _executable(false) {
53 } 53 }
54 54
55 ReservedSpace::ReservedSpace(size_t size) { 55 ReservedSpace::ReservedSpace(size_t size) {
56 size_t page_size = os::page_size_for_region(size, size, 1); 56 size_t page_size = os::page_size_for_region(size, 1);
57 bool large_pages = page_size != (size_t)os::vm_page_size(); 57 bool large_pages = page_size != (size_t)os::vm_page_size();
58 // Don't force the alignment to be large page aligned, 58 // Don't force the alignment to be large page aligned,
59 // since that will waste memory. 59 // since that will waste memory.
60 size_t alignment = os::vm_allocation_granularity(); 60 size_t alignment = os::vm_allocation_granularity();
61 initialize(size, alignment, large_pages, NULL, 0, false); 61 initialize(size, alignment, large_pages, NULL, 0, false);
370 _executable = false; 370 _executable = false;
371 } 371 }
372 372
373 373
374 bool VirtualSpace::initialize(ReservedSpace rs, size_t committed_size) { 374 bool VirtualSpace::initialize(ReservedSpace rs, size_t committed_size) {
375 const size_t max_commit_granularity = os::page_size_for_region(rs.size(), rs.size(), 1); 375 const size_t max_commit_granularity = os::page_size_for_region(rs.size(), 1);
376 return initialize_with_granularity(rs, committed_size, max_commit_granularity); 376 return initialize_with_granularity(rs, committed_size, max_commit_granularity);
377 } 377 }
378 378
379 bool VirtualSpace::initialize_with_granularity(ReservedSpace rs, size_t committed_size, size_t max_commit_granularity) { 379 bool VirtualSpace::initialize_with_granularity(ReservedSpace rs, size_t committed_size, size_t max_commit_granularity) {
380 if(!rs.is_reserved()) return false; // allocation failed. 380 if(!rs.is_reserved()) return false; // allocation failed.
993 case Reserve: 993 case Reserve:
994 return vs.initialize(rs, 0); 994 return vs.initialize(rs, 0);
995 case Disable: 995 case Disable:
996 return vs.initialize_with_granularity(rs, 0, os::vm_page_size()); 996 return vs.initialize_with_granularity(rs, 0, os::vm_page_size());
997 case Commit: 997 case Commit:
998 return vs.initialize_with_granularity(rs, 0, os::page_size_for_region(rs.size(), rs.size(), 1)); 998 return vs.initialize_with_granularity(rs, 0, os::page_size_for_region(rs.size(), 1));
999 } 999 }
1000 } 1000 }
1001 1001
1002 public: 1002 public:
1003 static void test_virtual_space_actual_committed_space(size_t reserve_size, size_t commit_size, 1003 static void test_virtual_space_actual_committed_space(size_t reserve_size, size_t commit_size,