1 /*
2 * Copyright (c) 2001, 2014, 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 *
23 */
24
25 #include "precompiled.hpp"
26 #include "gc_implementation/g1/concurrentG1Refine.hpp"
27 #include "gc_implementation/g1/concurrentG1RefineThread.hpp"
28 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
29 #include "gc_implementation/g1/g1HotCardCache.hpp"
30 #include "runtime/java.hpp"
31
32 ConcurrentG1Refine::ConcurrentG1Refine(G1CollectedHeap* g1h, CardTableEntryClosure* refine_closure) :
33 _threads(NULL), _n_threads(0),
34 _hot_card_cache(g1h)
35 {
36 // Ergonomically select initial concurrent refinement parameters
37 if (FLAG_IS_DEFAULT(G1ConcRefinementGreenZone)) {
38 FLAG_SET_DEFAULT(G1ConcRefinementGreenZone, MAX2<int>(ParallelGCThreads, 1));
39 }
40 set_green_zone(G1ConcRefinementGreenZone);
41
42 if (FLAG_IS_DEFAULT(G1ConcRefinementYellowZone)) {
43 FLAG_SET_DEFAULT(G1ConcRefinementYellowZone, green_zone() * 3);
44 }
45 set_yellow_zone(MAX2<int>(G1ConcRefinementYellowZone, green_zone()));
46
47 if (FLAG_IS_DEFAULT(G1ConcRefinementRedZone)) {
48 FLAG_SET_DEFAULT(G1ConcRefinementRedZone, yellow_zone() * 2);
49 }
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1 /*
2 * Copyright (c) 2001, 2015, 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 *
23 */
24
25 #include "precompiled.hpp"
26 #include "gc/g1/concurrentG1Refine.hpp"
27 #include "gc/g1/concurrentG1RefineThread.hpp"
28 #include "gc/g1/g1CollectedHeap.inline.hpp"
29 #include "gc/g1/g1HotCardCache.hpp"
30 #include "runtime/java.hpp"
31
32 ConcurrentG1Refine::ConcurrentG1Refine(G1CollectedHeap* g1h, CardTableEntryClosure* refine_closure) :
33 _threads(NULL), _n_threads(0),
34 _hot_card_cache(g1h)
35 {
36 // Ergonomically select initial concurrent refinement parameters
37 if (FLAG_IS_DEFAULT(G1ConcRefinementGreenZone)) {
38 FLAG_SET_DEFAULT(G1ConcRefinementGreenZone, MAX2<int>(ParallelGCThreads, 1));
39 }
40 set_green_zone(G1ConcRefinementGreenZone);
41
42 if (FLAG_IS_DEFAULT(G1ConcRefinementYellowZone)) {
43 FLAG_SET_DEFAULT(G1ConcRefinementYellowZone, green_zone() * 3);
44 }
45 set_yellow_zone(MAX2<int>(G1ConcRefinementYellowZone, green_zone()));
46
47 if (FLAG_IS_DEFAULT(G1ConcRefinementRedZone)) {
48 FLAG_SET_DEFAULT(G1ConcRefinementRedZone, yellow_zone() * 2);
49 }
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