1 /*
2 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
114 void G1YoungGenSizer::adjust_max_new_size(uint number_of_heap_regions) {
115
116 // We need to pass the desired values because recalculation may not update these
117 // values in some cases.
118 uint temp = _min_desired_young_length;
119 uint result = _max_desired_young_length;
120 recalculate_min_max_young_length(number_of_heap_regions, &temp, &result);
121
122 size_t max_young_size = result * HeapRegion::GrainBytes;
123 if (max_young_size != MaxNewSize) {
124 FLAG_SET_ERGO(size_t, MaxNewSize, max_young_size);
125 }
126 }
127
128 void G1YoungGenSizer::heap_size_changed(uint new_number_of_heap_regions) {
129 recalculate_min_max_young_length(new_number_of_heap_regions, &_min_desired_young_length,
130 &_max_desired_young_length);
131 }
132
133 G1YoungGenSizer* G1YoungGenSizer::create_gen_sizer(G1CollectorPolicy* policy) {
134 if (policy->is_hetero_heap()) {
135 return new G1HeterogeneousHeapYoungGenSizer();
136 } else {
137 return new G1YoungGenSizer();
138 }
139 }
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1 /*
2 * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
114 void G1YoungGenSizer::adjust_max_new_size(uint number_of_heap_regions) {
115
116 // We need to pass the desired values because recalculation may not update these
117 // values in some cases.
118 uint temp = _min_desired_young_length;
119 uint result = _max_desired_young_length;
120 recalculate_min_max_young_length(number_of_heap_regions, &temp, &result);
121
122 size_t max_young_size = result * HeapRegion::GrainBytes;
123 if (max_young_size != MaxNewSize) {
124 FLAG_SET_ERGO(size_t, MaxNewSize, max_young_size);
125 }
126 }
127
128 void G1YoungGenSizer::heap_size_changed(uint new_number_of_heap_regions) {
129 recalculate_min_max_young_length(new_number_of_heap_regions, &_min_desired_young_length,
130 &_max_desired_young_length);
131 }
132
133 G1YoungGenSizer* G1YoungGenSizer::create_gen_sizer(G1CollectorPolicy* policy) {
134 if (policy->is_heap_heterogeneous()) {
135 return new G1HeterogeneousHeapYoungGenSizer();
136 } else {
137 return new G1YoungGenSizer();
138 }
139 }
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