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comparison src/share/vm/memory/allocation.inline.hpp @ 9073:83f27710f5f7

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7197666: java -d64 -version core dumps in a box with lots of memory Summary: Allow task queues to be mmapped instead of malloced on Solaris Reviewed-by: coleenp, jmasa, johnc, tschatzl
author brutisso
date Mon, 08 Apr 2013 07:49:28 +0200
parents 63e54c37ac64
children 6f817ce50129
comparison
equal deleted inserted replaced
9072:8617e38bb4cb 9073:83f27710f5f7
106 106
107 template <MEMFLAGS F> void CHeapObj<F>::operator delete(void* p){ 107 template <MEMFLAGS F> void CHeapObj<F>::operator delete(void* p){
108 FreeHeap(p, F); 108 FreeHeap(p, F);
109 } 109 }
110 110
111 template <class E, MEMFLAGS F>
112 E* ArrayAllocator<E, F>::allocate(size_t length) {
113 assert(_addr == NULL, "Already in use");
114
115 _size = sizeof(E) * length;
116 _use_malloc = _size < ArrayAllocatorMallocLimit;
117
118 if (_use_malloc) {
119 _addr = AllocateHeap(_size, F);
120 if (_addr == NULL && _size >= (size_t)os::vm_allocation_granularity()) {
121 // malloc failed let's try with mmap instead
122 _use_malloc = false;
123 } else {
124 return (E*)_addr;
125 }
126 }
127
128 int alignment = os::vm_allocation_granularity();
129 _size = align_size_up(_size, alignment);
130
131 _addr = os::reserve_memory(_size, NULL, alignment);
132 if (_addr == NULL) {
133 vm_exit_out_of_memory(_size, "Allocator (reserve)");
134 }
135
136 bool success = os::commit_memory(_addr, _size, false /* executable */);
137 if (!success) {
138 vm_exit_out_of_memory(_size, "Allocator (commit)");
139 }
140
141 return (E*)_addr;
142 }
143
144 template<class E, MEMFLAGS F>
145 void ArrayAllocator<E, F>::free() {
146 if (_addr != NULL) {
147 if (_use_malloc) {
148 FreeHeap(_addr, F);
149 } else {
150 os::release_memory(_addr, _size);
151 }
152 _addr = NULL;
153 }
154 }
111 155
112 #endif // SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP 156 #endif // SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP