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8049864: TestParallelHeapSizeFlags fails with unexpected heap size

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Reviewed-by: sjohanss, jmasa
This commit is contained in:
Erik Helin 2014-06-24 15:50:50 +02:00
parent 3e005941e7
commit 3eff7a8f64
9 changed files with 89 additions and 40 deletions
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10
hotspot/src/share/vm/memory/heap.cpp
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@ -98,9 +98,13 @@ bool CodeHeap::reserve(size_t reserved_size, size_t committed_size,
_log2_segment_size = exact_log2(segment_size);
// Reserve and initialize space for _memory.
const size_t page_size = os::can_execute_large_page_memory() ?
os::page_size_for_region(committed_size, reserved_size, 8) :
os::vm_page_size();
size_t page_size = os::vm_page_size();
if (os::can_execute_large_page_memory()) {
const size_t min_pages = 8;
page_size = MIN2(os::page_size_for_region(committed_size, min_pages),
os::page_size_for_region(reserved_size, min_pages));
}
const size_t granularity = os::vm_allocation_granularity();
const size_t r_align = MAX2(page_size, granularity);
const size_t r_size = align_size_up(reserved_size, r_align);