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comparison src/share/vm/gc_implementation/parallelScavenge/generationSizer.hpp @ 13060:8f07aa079343

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8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking 7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector Summary: Major cleanup of the collectorpolicy classes Reviewed-by: tschatzl, jcoomes
author jwilhelm
date Fri, 01 Nov 2013 17:09:38 +0100
parents c49c7f835e8d
children
comparison
equal deleted inserted replaced
13059:46d7652b223c 13060:8f07aa079343
29 29
30 // There is a nice batch of tested generation sizing code in 30 // There is a nice batch of tested generation sizing code in
31 // TwoGenerationCollectorPolicy. Lets reuse it! 31 // TwoGenerationCollectorPolicy. Lets reuse it!
32 32
33 class GenerationSizer : public TwoGenerationCollectorPolicy { 33 class GenerationSizer : public TwoGenerationCollectorPolicy {
34 public: 34 private:
35 GenerationSizer() {
36 // Partial init only!
37 initialize_flags();
38 initialize_size_info();
39 }
40 35
41 void initialize_flags() { 36 void trace_gen_sizes(const char* const str);
42 // Do basic sizing work
43 TwoGenerationCollectorPolicy::initialize_flags();
44 37
45 assert(UseSerialGC || 38 // The alignment used for boundary between young gen and old gen
46 !FLAG_IS_DEFAULT(ParallelGCThreads) || 39 static size_t default_gen_alignment() { return 64 * K * HeapWordSize; }
47 (ParallelGCThreads > 0),
48 "ParallelGCThreads should be set before flag initialization");
49 40
50 // The survivor ratio's are calculated "raw", unlike the 41 protected:
51 // default gc, which adds 2 to the ratio value. We need to
52 // make sure the values are valid before using them.
53 if (MinSurvivorRatio < 3) {
54 MinSurvivorRatio = 3;
55 }
56 42
57 if (InitialSurvivorRatio < 3) { 43 void initialize_alignments();
58 InitialSurvivorRatio = 3; 44 void initialize_flags();
59 } 45 void initialize_size_info();
60 }
61
62 size_t min_young_gen_size() { return _min_gen0_size; }
63 size_t young_gen_size() { return _initial_gen0_size; }
64 size_t max_young_gen_size() { return _max_gen0_size; }
65
66 size_t min_old_gen_size() { return _min_gen1_size; }
67 size_t old_gen_size() { return _initial_gen1_size; }
68 size_t max_old_gen_size() { return _max_gen1_size; }
69 }; 46 };
70
71 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP 47 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP