Mercurial > hg > graal-jvmci-8
comparison src/share/vm/gc_implementation/parallelScavenge/generationSizer.cpp @ 22974:c2ce24504334
8049864: TestParallelHeapSizeFlags fails with unexpected heap size
Reviewed-by: sjohanss, jmasa
| author | ehelin |
|---|---|
| date | Tue, 24 Jun 2014 15:50:50 +0200 |
| parents | ee527493b36d |
| children | 5788dbd1f2d6 |
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| 22973:340ca8812af9 | 22974:c2ce24504334 |
|---|---|
| 64 } | 64 } |
| 65 } | 65 } |
| 66 | 66 |
| 67 void GenerationSizer::initialize_size_info() { | 67 void GenerationSizer::initialize_size_info() { |
| 68 trace_gen_sizes("ps heap raw"); | 68 trace_gen_sizes("ps heap raw"); |
| 69 const size_t page_sz = os::page_size_for_region(_min_heap_byte_size, | 69 const size_t max_page_sz = os::page_size_for_region(_max_heap_byte_size, 8); |
| 70 _max_heap_byte_size, | 70 const size_t min_pages = 4; // 1 for eden + 1 for each survivor + 1 for old |
| 71 8); | 71 const size_t min_page_sz = os::page_size_for_region(_min_heap_byte_size, min_pages); |
| 72 const size_t page_sz = MIN2(max_page_sz, min_page_sz); | |
| 72 | 73 |
| 73 // Can a page size be something else than a power of two? | 74 // Can a page size be something else than a power of two? |
| 74 assert(is_power_of_2((intptr_t)page_sz), "must be a power of 2"); | 75 assert(is_power_of_2((intptr_t)page_sz), "must be a power of 2"); |
| 75 size_t new_alignment = round_to(page_sz, _gen_alignment); | 76 size_t new_alignment = round_to(page_sz, _gen_alignment); |
| 76 if (new_alignment != _gen_alignment) { | 77 if (new_alignment != _gen_alignment) { |