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comparison src/share/vm/gc_implementation/g1/heapRegion.cpp @ 12233:40136aa2cdb1

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8010722: assert: failed: heap size is too big for compressed oops Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation. Reviewed-by: stefank, dholmes
author tschatzl
date Wed, 11 Sep 2013 16:25:02 +0200
parents 84683e78e713
children 190899198332
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12230:040895ec3920 12233:40136aa2cdb1
1 /* 1 /*
2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
146 #define MAX_REGION_SIZE ( 32 * 1024 * 1024 ) 146 #define MAX_REGION_SIZE ( 32 * 1024 * 1024 )
147 147
148 // The automatic region size calculation will try to have around this 148 // The automatic region size calculation will try to have around this
149 // many regions in the heap (based on the min heap size). 149 // many regions in the heap (based on the min heap size).
150 #define TARGET_REGION_NUMBER 2048 150 #define TARGET_REGION_NUMBER 2048
151
152 size_t HeapRegion::max_region_size() {
153 return (size_t)MAX_REGION_SIZE;
154 }
151 155
152 void HeapRegion::setup_heap_region_size(size_t initial_heap_size, size_t max_heap_size) { 156 void HeapRegion::setup_heap_region_size(size_t initial_heap_size, size_t max_heap_size) {
153 uintx region_size = G1HeapRegionSize; 157 uintx region_size = G1HeapRegionSize;
154 if (FLAG_IS_DEFAULT(G1HeapRegionSize)) { 158 if (FLAG_IS_DEFAULT(G1HeapRegionSize)) {
155 size_t average_heap_size = (initial_heap_size + max_heap_size) / 2; 159 size_t average_heap_size = (initial_heap_size + max_heap_size) / 2;