39
40 void G1RemSetSummary::update() {
41 class CollectData : public ThreadClosure {
42 G1RemSetSummary* _summary;
43 uint _counter;
44 public:
45 CollectData(G1RemSetSummary * summary) : _summary(summary), _counter(0) {}
46 virtual void do_thread(Thread* t) {
47 G1ConcurrentRefineThread* crt = static_cast<G1ConcurrentRefineThread*>(t);
48 _summary->set_rs_thread_vtime(_counter, crt->vtime_accum());
49 _counter++;
50 _summary->_total_concurrent_refined_cards += crt->total_refined_cards();
51 }
52 } collector(this);
53 G1CollectedHeap* g1h = G1CollectedHeap::heap();
54 g1h->concurrent_refine()->threads_do(&collector);
55 _total_mutator_refined_cards = G1BarrierSet::dirty_card_queue_set().total_mutator_refined_cards();
56 _num_coarsenings = HeapRegionRemSet::n_coarsenings();
57
58 set_sampling_thread_vtime(g1h->sampling_thread()->vtime_accum());
59 }
60
61 void G1RemSetSummary::set_rs_thread_vtime(uint thread, double value) {
62 assert(_rs_threads_vtimes != NULL, "just checking");
63 assert(thread < _num_vtimes, "just checking");
64 _rs_threads_vtimes[thread] = value;
65 }
66
67 double G1RemSetSummary::rs_thread_vtime(uint thread) const {
68 assert(_rs_threads_vtimes != NULL, "just checking");
69 assert(thread < _num_vtimes, "just checking");
70 return _rs_threads_vtimes[thread];
71 }
72
73 G1RemSetSummary::G1RemSetSummary(bool should_update) :
74 _total_mutator_refined_cards(0),
75 _total_concurrent_refined_cards(0),
76 _num_coarsenings(0),
77 _num_vtimes(G1ConcurrentRefine::max_num_threads()),
78 _rs_threads_vtimes(NEW_C_HEAP_ARRAY(double, _num_vtimes, mtGC)),
79 _sampling_thread_vtime(0.0f) {
80
81 memset(_rs_threads_vtimes, 0, sizeof(double) * _num_vtimes);
82
83 if (should_update) {
84 update();
85 }
86 }
87
88 G1RemSetSummary::~G1RemSetSummary() {
89 FREE_C_HEAP_ARRAY(double, _rs_threads_vtimes);
90 }
91
92 void G1RemSetSummary::set(G1RemSetSummary* other) {
93 assert(other != NULL, "just checking");
94 assert(_num_vtimes == other->_num_vtimes, "just checking");
95
96 _total_mutator_refined_cards = other->total_mutator_refined_cards();
97 _total_concurrent_refined_cards = other->total_concurrent_refined_cards();
98
99 _num_coarsenings = other->num_coarsenings();
100
101 memcpy(_rs_threads_vtimes, other->_rs_threads_vtimes, sizeof(double) * _num_vtimes);
102
103 set_sampling_thread_vtime(other->sampling_thread_vtime());
104 }
105
106 void G1RemSetSummary::subtract_from(G1RemSetSummary* other) {
107 assert(other != NULL, "just checking");
108 assert(_num_vtimes == other->_num_vtimes, "just checking");
109
110 _total_mutator_refined_cards = other->total_mutator_refined_cards() - _total_mutator_refined_cards;
111 _total_concurrent_refined_cards = other->total_concurrent_refined_cards() - _total_concurrent_refined_cards;
112
113 _num_coarsenings = other->num_coarsenings() - _num_coarsenings;
114
115 for (uint i = 0; i < _num_vtimes; i++) {
116 set_rs_thread_vtime(i, other->rs_thread_vtime(i) - rs_thread_vtime(i));
117 }
118
119 _sampling_thread_vtime = other->sampling_thread_vtime() - _sampling_thread_vtime;
120 }
121
122 class RegionTypeCounter {
123 private:
124 const char* _name;
125
126 size_t _rs_mem_size;
127 size_t _cards_occupied;
128 size_t _amount;
129
130 size_t _code_root_mem_size;
131 size_t _code_root_elems;
132
133 double rs_mem_size_percent_of(size_t total) {
134 return percent_of(_rs_mem_size, total);
135 }
136
137 double cards_occupied_percent_of(size_t total) {
138 return percent_of(_cards_occupied, total);
139 }
330 };
331
332 void G1RemSetSummary::print_on(outputStream* out) {
333 out->print_cr(" Recent concurrent refinement statistics");
334 out->print_cr(" Of " SIZE_FORMAT " refined cards:", total_refined_cards());
335 out->print_cr(" " SIZE_FORMAT_W(8) " (%5.1f%%) by concurrent refinement threads.",
336 total_concurrent_refined_cards(),
337 percent_of(total_concurrent_refined_cards(), total_refined_cards()));
338 out->print_cr(" " SIZE_FORMAT_W(8) " (%5.1f%%) by mutator threads.",
339 total_mutator_refined_cards(),
340 percent_of(total_mutator_refined_cards(), total_refined_cards()));
341 out->print_cr(" Did " SIZE_FORMAT " coarsenings.", num_coarsenings());
342 out->print_cr(" Concurrent refinement threads times (s)");
343 out->print(" ");
344 for (uint i = 0; i < _num_vtimes; i++) {
345 out->print(" %5.2f", rs_thread_vtime(i));
346 }
347 out->cr();
348 out->print_cr(" Concurrent sampling threads times (s)");
349 out->print_cr(" %5.2f", sampling_thread_vtime());
350
351 HRRSStatsIter blk;
352 G1CollectedHeap::heap()->heap_region_iterate(&blk);
353 blk.print_summary_on(out);
354 }
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39
40 void G1RemSetSummary::update() {
41 class CollectData : public ThreadClosure {
42 G1RemSetSummary* _summary;
43 uint _counter;
44 public:
45 CollectData(G1RemSetSummary * summary) : _summary(summary), _counter(0) {}
46 virtual void do_thread(Thread* t) {
47 G1ConcurrentRefineThread* crt = static_cast<G1ConcurrentRefineThread*>(t);
48 _summary->set_rs_thread_vtime(_counter, crt->vtime_accum());
49 _counter++;
50 _summary->_total_concurrent_refined_cards += crt->total_refined_cards();
51 }
52 } collector(this);
53 G1CollectedHeap* g1h = G1CollectedHeap::heap();
54 g1h->concurrent_refine()->threads_do(&collector);
55 _total_mutator_refined_cards = G1BarrierSet::dirty_card_queue_set().total_mutator_refined_cards();
56 _num_coarsenings = HeapRegionRemSet::n_coarsenings();
57
58 set_sampling_thread_vtime(g1h->sampling_thread()->vtime_accum());
59
60 G1EpochSynchronizerCounters* sync_counters = g1h->concurrent_refine()->synchronizer_counters();
61 _num_fast_sync = sync_counters->num_fast_sync();
62 _num_no_handshake_sync = sync_counters->num_no_handshake_sync();
63 _num_handshake_sync = sync_counters->num_handshake_sync();
64 _no_handshake_accum_time_ms = TimeHelper::counter_to_millis(sync_counters->no_handshake_accum_time_counter());
65 _handshake_accum_time_ms = TimeHelper::counter_to_millis(sync_counters->handshake_accum_time_counter());
66 _num_handshake_no_safepoint = sync_counters->num_handshake_no_safepoint();
67 _num_handshake_safepoint = sync_counters->num_handshake_safepoint();
68 }
69
70 void G1RemSetSummary::set_rs_thread_vtime(uint thread, double value) {
71 assert(_rs_threads_vtimes != NULL, "just checking");
72 assert(thread < _num_vtimes, "just checking");
73 _rs_threads_vtimes[thread] = value;
74 }
75
76 double G1RemSetSummary::rs_thread_vtime(uint thread) const {
77 assert(_rs_threads_vtimes != NULL, "just checking");
78 assert(thread < _num_vtimes, "just checking");
79 return _rs_threads_vtimes[thread];
80 }
81
82 G1RemSetSummary::G1RemSetSummary(bool should_update) :
83 _total_mutator_refined_cards(0),
84 _total_concurrent_refined_cards(0),
85 _num_coarsenings(0),
86 _num_vtimes(G1ConcurrentRefine::max_num_threads()),
87 _rs_threads_vtimes(NEW_C_HEAP_ARRAY(double, _num_vtimes, mtGC)),
88 _sampling_thread_vtime(0.0f),
89 _num_fast_sync(0),
90 _num_no_handshake_sync(0),
91 _num_handshake_sync(0),
92 _no_handshake_accum_time_ms(0),
93 _handshake_accum_time_ms(0),
94 _num_handshake_no_safepoint(0),
95 _num_handshake_safepoint(0) {
96
97 memset(_rs_threads_vtimes, 0, sizeof(double) * _num_vtimes);
98
99 if (should_update) {
100 update();
101 }
102 }
103
104 G1RemSetSummary::~G1RemSetSummary() {
105 FREE_C_HEAP_ARRAY(double, _rs_threads_vtimes);
106 }
107
108 void G1RemSetSummary::set(G1RemSetSummary* other) {
109 assert(other != NULL, "just checking");
110 assert(_num_vtimes == other->_num_vtimes, "just checking");
111
112 _total_mutator_refined_cards = other->total_mutator_refined_cards();
113 _total_concurrent_refined_cards = other->total_concurrent_refined_cards();
114
115 _num_coarsenings = other->num_coarsenings();
116
117 memcpy(_rs_threads_vtimes, other->_rs_threads_vtimes, sizeof(double) * _num_vtimes);
118
119 set_sampling_thread_vtime(other->sampling_thread_vtime());
120
121 _num_fast_sync = other->num_fast_sync();
122 _num_no_handshake_sync = other->num_no_handshake_sync();
123 _num_handshake_sync = other->num_handshake_sync();
124 _no_handshake_accum_time_ms = other->no_handshake_accum_time_ms();
125 _handshake_accum_time_ms = other->handshake_accum_time_ms();
126 _num_handshake_no_safepoint = other->num_handshake_no_safepoint();
127 _num_handshake_safepoint = other->num_handshake_safepoint();
128 }
129
130 void G1RemSetSummary::subtract_from(G1RemSetSummary* other) {
131 assert(other != NULL, "just checking");
132 assert(_num_vtimes == other->_num_vtimes, "just checking");
133
134 _total_mutator_refined_cards = other->total_mutator_refined_cards() - _total_mutator_refined_cards;
135 _total_concurrent_refined_cards = other->total_concurrent_refined_cards() - _total_concurrent_refined_cards;
136
137 _num_coarsenings = other->num_coarsenings() - _num_coarsenings;
138
139 for (uint i = 0; i < _num_vtimes; i++) {
140 set_rs_thread_vtime(i, other->rs_thread_vtime(i) - rs_thread_vtime(i));
141 }
142
143 _sampling_thread_vtime = other->sampling_thread_vtime() - _sampling_thread_vtime;
144
145 _num_fast_sync = other->num_fast_sync() - _num_fast_sync;
146 _num_no_handshake_sync = other->num_no_handshake_sync() - _num_no_handshake_sync;
147 _num_handshake_sync = other->num_handshake_sync() - _num_handshake_sync;
148 _no_handshake_accum_time_ms = other->no_handshake_accum_time_ms() - _no_handshake_accum_time_ms;
149 _handshake_accum_time_ms = other->handshake_accum_time_ms() - _handshake_accum_time_ms;
150 _num_handshake_no_safepoint = other->num_handshake_no_safepoint() - _num_handshake_no_safepoint;
151 _num_handshake_safepoint = other->num_handshake_safepoint() - _num_handshake_safepoint;
152 }
153
154 class RegionTypeCounter {
155 private:
156 const char* _name;
157
158 size_t _rs_mem_size;
159 size_t _cards_occupied;
160 size_t _amount;
161
162 size_t _code_root_mem_size;
163 size_t _code_root_elems;
164
165 double rs_mem_size_percent_of(size_t total) {
166 return percent_of(_rs_mem_size, total);
167 }
168
169 double cards_occupied_percent_of(size_t total) {
170 return percent_of(_cards_occupied, total);
171 }
362 };
363
364 void G1RemSetSummary::print_on(outputStream* out) {
365 out->print_cr(" Recent concurrent refinement statistics");
366 out->print_cr(" Of " SIZE_FORMAT " refined cards:", total_refined_cards());
367 out->print_cr(" " SIZE_FORMAT_W(8) " (%5.1f%%) by concurrent refinement threads.",
368 total_concurrent_refined_cards(),
369 percent_of(total_concurrent_refined_cards(), total_refined_cards()));
370 out->print_cr(" " SIZE_FORMAT_W(8) " (%5.1f%%) by mutator threads.",
371 total_mutator_refined_cards(),
372 percent_of(total_mutator_refined_cards(), total_refined_cards()));
373 out->print_cr(" Did " SIZE_FORMAT " coarsenings.", num_coarsenings());
374 out->print_cr(" Concurrent refinement threads times (s)");
375 out->print(" ");
376 for (uint i = 0; i < _num_vtimes; i++) {
377 out->print(" %5.2f", rs_thread_vtime(i));
378 }
379 out->cr();
380 out->print_cr(" Concurrent sampling threads times (s)");
381 out->print_cr(" %5.2f", sampling_thread_vtime());
382
383 out->print_cr(" Epoch synchronization statistics");
384 out->print_cr(" fastpath no-handshake(time (ms)) handshake(time (ms)) no_safepoint/safepoint");
385 out->print_cr(" " SIZE_FORMAT_W(8) " " SIZE_FORMAT_W(12) "(" SIZE_FORMAT_W(9)
386 ") " SIZE_FORMAT_W(9) "(" SIZE_FORMAT_W(9) ") "
387 SIZE_FORMAT_W(12) "/" SIZE_FORMAT_W(9),
388 num_fast_sync(),
389 num_no_handshake_sync(), no_handshake_accum_time_ms(),
390 num_handshake_sync(), handshake_accum_time_ms(),
391 num_handshake_no_safepoint(), num_handshake_safepoint());
392
393 HRRSStatsIter blk;
394 G1CollectedHeap::heap()->heap_region_iterate(&blk);
395 blk.print_summary_on(out);
396 }
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