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6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb

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Added new product ObjectAlignmentInBytes flag to control object alignment.

Reviewed-by: twisti, ysr, iveresov
This commit is contained in:
Vladimir Kozlov 2010-05-27 18:01:56 -07:00
parent 05b4f2e796
commit cc18a50e59
29 changed files with 222 additions and 136 deletions
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4
hotspot/src/share/vm/gc_interface/collectedHeap.cpp
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@ -239,11 +239,11 @@ oop CollectedHeap::new_store_pre_barrier(JavaThread* thread, oop new_obj) {
}
size_t CollectedHeap::filler_array_hdr_size() {
return size_t(arrayOopDesc::header_size(T_INT));
return size_t(align_object_offset(arrayOopDesc::header_size(T_INT))); // align to Long
}
size_t CollectedHeap::filler_array_min_size() {
return align_object_size(filler_array_hdr_size());
return align_object_size(filler_array_hdr_size()); // align to MinObjAlignment
}
size_t CollectedHeap::filler_array_max_size() {