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hotspot/src/share/vm/gc_implementation/g1/heapRegionManager.cpp
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rev 7369 : 8061715: gc/g1/TestShrinkAuxiliaryData15.java fails with java.lang.RuntimeException: heap decommit failed - after > before
Summary: added WhiteBox methods to count regions and exact aux data sizes
Reviewed-by: jwilhelm, brutisso
@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
@@ -143,10 +143,28 @@
hr->initialize(mr);
insert_into_free_list(at(i));
}
}
+MemoryUsage HeapRegionManager::get_auxiliary_data_memory_usage() const {
+ size_t used_sz =
+ _prev_bitmap_mapper->committed_size() +
+ _next_bitmap_mapper->committed_size() +
+ _bot_mapper->committed_size() +
+ _cardtable_mapper->committed_size() +
+ _card_counts_mapper->committed_size();
+
+ size_t committed_sz =
+ _prev_bitmap_mapper->reserved_size() +
+ _next_bitmap_mapper->reserved_size() +
+ _bot_mapper->reserved_size() +
+ _cardtable_mapper->reserved_size() +
+ _card_counts_mapper->reserved_size();
+
+ return MemoryUsage(0, used_sz, committed_sz, committed_sz);
+}
+
uint HeapRegionManager::expand_by(uint num_regions) {
return expand_at(0, num_regions);
}
uint HeapRegionManager::expand_at(uint start, uint num_regions) {
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