50   char _pad0[DEFAULT_CACHE_LINE_SIZE];
  51   volatile intptr_t _budget;
  52   char _pad1[DEFAULT_CACHE_LINE_SIZE];
  53   volatile intptr_t _progress;
  54   char _pad2[DEFAULT_CACHE_LINE_SIZE];
  55 
  56 public:
  57   ShenandoahPacer(ShenandoahHeap* heap) :
  58           _heap(heap),
  59           _progress_history(new TruncatedSeq(5)),
  60           _epoch(0),
  61           _tax_rate(1),
  62           _budget(0),
  63           _progress(PACING_PROGRESS_UNINIT) {
  64   }
  65 
  66   void setup_for_idle();
  67   void setup_for_mark();
  68   void setup_for_evac();
  69   void setup_for_updaterefs();

  70 
  71   inline void report_mark(size_t words);
  72   inline void report_evac(size_t words);
  73   inline void report_updaterefs(size_t words);
  74 
  75   inline void report_alloc(size_t words);
  76 
  77   bool claim_for_alloc(size_t words, bool force);
  78   void pace_for_alloc(size_t words);
  79   void unpace_for_alloc(intptr_t epoch, size_t words);
  80 
  81   intptr_t epoch();
  82 
  83   void print_on(outputStream* out) const;
  84 
  85 private:
  86   inline void report_internal(size_t words);
  87   inline void report_progress_internal(size_t words);
  88 
  89   void restart_with(jlong non_taxable_bytes, jdouble tax_rate);

  50   char _pad0[DEFAULT_CACHE_LINE_SIZE];
  51   volatile intptr_t _budget;
  52   char _pad1[DEFAULT_CACHE_LINE_SIZE];
  53   volatile intptr_t _progress;
  54   char _pad2[DEFAULT_CACHE_LINE_SIZE];
  55 
  56 public:
  57   ShenandoahPacer(ShenandoahHeap* heap) :
  58           _heap(heap),
  59           _progress_history(new TruncatedSeq(5)),
  60           _epoch(0),
  61           _tax_rate(1),
  62           _budget(0),
  63           _progress(PACING_PROGRESS_UNINIT) {
  64   }
  65 
  66   void setup_for_idle();
  67   void setup_for_mark();
  68   void setup_for_evac();
  69   void setup_for_updaterefs();
  70   void setup_for_traversal();
  71 
  72   inline void report_mark(size_t words);
  73   inline void report_evac(size_t words);
  74   inline void report_updaterefs(size_t words);
  75 
  76   inline void report_alloc(size_t words);
  77 
  78   bool claim_for_alloc(size_t words, bool force);
  79   void pace_for_alloc(size_t words);
  80   void unpace_for_alloc(intptr_t epoch, size_t words);
  81 
  82   intptr_t epoch();
  83 
  84   void print_on(outputStream* out) const;
  85 
  86 private:
  87   inline void report_internal(size_t words);
  88   inline void report_progress_internal(size_t words);
  89 
  90   void restart_with(jlong non_taxable_bytes, jdouble tax_rate);