1/*
2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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).
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23 */
24
25#ifndef SHARE_GC_PARALLEL_PARALLEL_GLOBALS_HPP
26#define SHARE_GC_PARALLEL_PARALLEL_GLOBALS_HPP
27
28#define GC_PARALLEL_FLAGS(develop, \
29 develop_pd, \
30 product, \
31 product_pd, \
32 diagnostic, \
33 diagnostic_pd, \
34 experimental, \
35 notproduct, \
36 manageable, \
37 product_rw, \
38 lp64_product, \
39 range, \
40 constraint, \
41 writeable) \
42 product(uintx, HeapMaximumCompactionInterval, 20, \
43 "How often should we maximally compact the heap (not allowing " \
44 "any dead space)") \
45 range(0, max_uintx) \
46 \
47 product(uintx, HeapFirstMaximumCompactionCount, 3, \
48 "The collection count for the first maximum compaction") \
49 range(0, max_uintx) \
50 \
51 product(bool, UseMaximumCompactionOnSystemGC, true, \
52 "Use maximum compaction in the Parallel Old garbage collector " \
53 "for a system GC") \
54 \
55 product(size_t, ParallelOldDeadWoodLimiterMean, 50, \
56 "The mean used by the parallel compact dead wood " \
57 "limiter (a number between 0-100)") \
58 range(0, 100) \
59 \
60 product(size_t, ParallelOldDeadWoodLimiterStdDev, 80, \
61 "The standard deviation used by the parallel compact dead wood " \
62 "limiter (a number between 0-100)") \
63 range(0, 100) \
64 \
65 develop(bool, TraceGCTaskManager, false, \
66 "Trace actions of the GC task manager") \
67 \
68 develop(bool, TraceGCTaskQueue, false, \
69 "Trace actions of the GC task queues") \
70 \
71 develop(bool, TraceParallelOldGCMarkingPhase, false, \
72 "Trace marking phase in ParallelOldGC") \
73 \
74 develop(bool, TraceParallelOldGCDensePrefix, false, \
75 "Trace dense prefix computation for ParallelOldGC") \
76 \
77 develop(uintx, GCWorkerDelayMillis, 0, \
78 "Delay in scheduling GC workers (in milliseconds)") \
79 \
80 product(bool, PSChunkLargeArrays, true, \
81 "Process large arrays in chunks")
82
83#endif // SHARE_GC_PARALLEL_PARALLEL_GLOBALS_HPP
84