1 /*
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 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
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 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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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