Thu, 14 Mar 2013 09:37:38 +0100
6733980: par compact - TraceGen1Time always shows 0.0000 seconds
Summary: Use the correct collector to retrieve accumulated gen1 trace time
Reviewed-by: johnc, jmasa
1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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13 * accompanied this code).
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSMARKSWEEP_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSMARKSWEEP_HPP
28 #include "gc_implementation/shared/collectorCounters.hpp"
29 #include "gc_implementation/shared/markSweep.inline.hpp"
30 #include "utilities/stack.hpp"
32 class PSAdaptiveSizePolicy;
33 class PSYoungGen;
34 class PSOldGen;
36 class PSMarkSweep : public MarkSweep {
37 private:
38 static elapsedTimer _accumulated_time;
39 static jlong _time_of_last_gc; // ms
40 static CollectorCounters* _counters;
42 // Closure accessors
43 static OopClosure* mark_and_push_closure() { return &MarkSweep::mark_and_push_closure; }
44 static KlassClosure* follow_klass_closure() { return &MarkSweep::follow_klass_closure; }
45 static VoidClosure* follow_stack_closure() { return (VoidClosure*)&MarkSweep::follow_stack_closure; }
46 static OopClosure* adjust_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_pointer_closure; }
47 static OopClosure* adjust_root_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_root_pointer_closure; }
48 static KlassClosure* adjust_klass_closure() { return &MarkSweep::adjust_klass_closure; }
49 static BoolObjectClosure* is_alive_closure() { return (BoolObjectClosure*)&MarkSweep::is_alive; }
51 debug_only(public:) // Used for PSParallelCompact debugging
52 // Mark live objects
53 static void mark_sweep_phase1(bool clear_all_softrefs);
54 // Calculate new addresses
55 static void mark_sweep_phase2();
56 debug_only(private:) // End used for PSParallelCompact debugging
57 // Update pointers
58 static void mark_sweep_phase3();
59 // Move objects to new positions
60 static void mark_sweep_phase4();
62 debug_only(public:) // Used for PSParallelCompact debugging
63 // Temporary data structures for traversal and storing/restoring marks
64 static void allocate_stacks();
65 static void deallocate_stacks();
66 static void set_ref_processor(ReferenceProcessor* rp) { // delete this method
67 _ref_processor = rp;
68 }
69 debug_only(private:) // End used for PSParallelCompact debugging
71 // If objects are left in eden after a collection, try to move the boundary
72 // and absorb them into the old gen. Returns true if eden was emptied.
73 static bool absorb_live_data_from_eden(PSAdaptiveSizePolicy* size_policy,
74 PSYoungGen* young_gen,
75 PSOldGen* old_gen);
77 // Reset time since last full gc
78 static void reset_millis_since_last_gc();
80 public:
81 static void invoke(bool clear_all_softrefs);
82 static bool invoke_no_policy(bool clear_all_softrefs);
84 static void initialize();
86 // Public accessors
87 static elapsedTimer* accumulated_time() { return &_accumulated_time; }
88 static CollectorCounters* counters() { return _counters; }
90 // Time since last full gc (in milliseconds)
91 static jlong millis_since_last_gc();
92 };
94 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSMARKSWEEP_HPP