71 static CompiledMethodIterator _current; // Current compiled method
72 static int _seen; // Nof. nmethod we have currently processed in current pass of CodeCache
73
74 static volatile int _sweep_started; // Flag to control conc sweeper
75 static volatile bool _should_sweep; // Indicates if we should invoke the sweeper
76 static volatile bool _force_sweep; // Indicates if we should force a sweep
77 static volatile int _bytes_changed; // Counts the total nmethod size if the nmethod changed from:
78 // 1) alive -> not_entrant
79 // 2) not_entrant -> zombie
80 // Stat counters
81 static long _total_nof_methods_reclaimed; // Accumulated nof methods flushed
82 static long _total_nof_c2_methods_reclaimed; // Accumulated nof C2-compiled methods flushed
83 static size_t _total_flushed_size; // Total size of flushed methods
84 static int _hotness_counter_reset_val;
85
86 static Tickspan _total_time_sweeping; // Accumulated time sweeping
87 static Tickspan _total_time_this_sweep; // Total time this sweep
88 static Tickspan _peak_sweep_time; // Peak time for a full sweep
89 static Tickspan _peak_sweep_fraction_time; // Peak time sweeping one fraction
90
91 static Monitor* _stat_lock;
92
93 static MethodStateChange process_compiled_method(CompiledMethod *nm);
94 static void release_compiled_method(CompiledMethod* nm);
95
96 static void init_sweeper_log() NOT_DEBUG_RETURN;
97 static bool wait_for_stack_scanning();
98 static void sweep_code_cache();
99 static void handle_safepoint_request();
100 static void do_stack_scanning();
101 static void possibly_sweep();
102 public:
103 static long traversal_count() { return _traversals; }
104 static int total_nof_methods_reclaimed() { return _total_nof_methods_reclaimed; }
105 static const Tickspan total_time_sweeping() { return _total_time_sweeping; }
106 static const Tickspan peak_sweep_time() { return _peak_sweep_time; }
107 static const Tickspan peak_sweep_fraction_time() { return _peak_sweep_fraction_time; }
108 static void log_sweep(const char* msg, const char* format = NULL, ...) ATTRIBUTE_PRINTF(2, 3);
109
110
111 #ifdef ASSERT
112 // Keep track of sweeper activity in the ring buffer
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71 static CompiledMethodIterator _current; // Current compiled method
72 static int _seen; // Nof. nmethod we have currently processed in current pass of CodeCache
73
74 static volatile int _sweep_started; // Flag to control conc sweeper
75 static volatile bool _should_sweep; // Indicates if we should invoke the sweeper
76 static volatile bool _force_sweep; // Indicates if we should force a sweep
77 static volatile int _bytes_changed; // Counts the total nmethod size if the nmethod changed from:
78 // 1) alive -> not_entrant
79 // 2) not_entrant -> zombie
80 // Stat counters
81 static long _total_nof_methods_reclaimed; // Accumulated nof methods flushed
82 static long _total_nof_c2_methods_reclaimed; // Accumulated nof C2-compiled methods flushed
83 static size_t _total_flushed_size; // Total size of flushed methods
84 static int _hotness_counter_reset_val;
85
86 static Tickspan _total_time_sweeping; // Accumulated time sweeping
87 static Tickspan _total_time_this_sweep; // Total time this sweep
88 static Tickspan _peak_sweep_time; // Peak time for a full sweep
89 static Tickspan _peak_sweep_fraction_time; // Peak time sweeping one fraction
90
91 static MethodStateChange process_compiled_method(CompiledMethod *nm);
92 static void release_compiled_method(CompiledMethod* nm);
93
94 static void init_sweeper_log() NOT_DEBUG_RETURN;
95 static bool wait_for_stack_scanning();
96 static void sweep_code_cache();
97 static void handle_safepoint_request();
98 static void do_stack_scanning();
99 static void possibly_sweep();
100 public:
101 static long traversal_count() { return _traversals; }
102 static int total_nof_methods_reclaimed() { return _total_nof_methods_reclaimed; }
103 static const Tickspan total_time_sweeping() { return _total_time_sweeping; }
104 static const Tickspan peak_sweep_time() { return _peak_sweep_time; }
105 static const Tickspan peak_sweep_fraction_time() { return _peak_sweep_fraction_time; }
106 static void log_sweep(const char* msg, const char* format = NULL, ...) ATTRIBUTE_PRINTF(2, 3);
107
108
109 #ifdef ASSERT
110 // Keep track of sweeper activity in the ring buffer
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