1 /* 2 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_GC_G1_G1GCPHASETIMES_HPP 26 #define SHARE_VM_GC_G1_G1GCPHASETIMES_HPP 27 28 #include "gc/shared/referenceProcessorPhaseTimes.hpp" 29 #include "logging/logLevel.hpp" 30 #include "memory/allocation.hpp" 31 #include "utilities/macros.hpp" 32 33 class LineBuffer; 34 class STWGCTimer; 35 36 template <class T> class WorkerDataArray; 37 38 class G1GCPhaseTimes : public CHeapObj<mtGC> { 39 uint _max_gc_threads; 40 jlong _gc_start_counter; 41 double _gc_pause_time_ms; 42 43 public: 44 enum GCParPhases { 45 GCWorkerStart, 46 ExtRootScan, 47 ThreadRoots, 48 StringTableRoots, 49 UniverseRoots, 50 JNIRoots, 51 ObjectSynchronizerRoots, 52 ManagementRoots, 53 SystemDictionaryRoots, 54 CLDGRoots, 55 JVMTIRoots, 56 CMRefRoots, 57 WaitForStrongCLD, 58 WeakCLDRoots, 59 SATBFiltering, 60 UpdateRS, 61 ScanHCC, 62 ScanRS, 63 CodeRoots, 64 #if INCLUDE_AOT 65 AOTCodeRoots, 66 #endif 67 ObjCopy, 68 Termination, 69 Other, 70 GCWorkerTotal, 71 GCWorkerEnd, 72 StringDedupQueueFixup, 73 StringDedupTableFixup, 74 RedirtyCards, 75 PreserveCMReferents, 76 YoungFreeCSet, 77 NonYoungFreeCSet, 78 GCParPhasesSentinel 79 }; 80 81 enum GCScanRSWorkItems { 82 ScanRSScannedCards, 83 ScanRSClaimedCards, 84 ScanRSSkippedCards 85 }; 86 87 enum GCUpdateRSWorkItems { 88 UpdateRSProcessedBuffers, 89 UpdateRSScannedCards, 90 UpdateRSSkippedCards 91 }; 92 93 private: 94 // Markers for grouping the phases in the GCPhases enum above 95 static const int GCMainParPhasesLast = GCWorkerEnd; 96 static const int StringDedupPhasesFirst = StringDedupQueueFixup; 97 static const int StringDedupPhasesLast = StringDedupTableFixup; 98 99 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel]; 100 101 WorkerDataArray<size_t>* _update_rs_processed_buffers; 102 WorkerDataArray<size_t>* _update_rs_scanned_cards; 103 WorkerDataArray<size_t>* _update_rs_skipped_cards; 104 105 WorkerDataArray<size_t>* _scan_rs_scanned_cards; 106 WorkerDataArray<size_t>* _scan_rs_claimed_cards; 107 WorkerDataArray<size_t>* _scan_rs_skipped_cards; 108 109 WorkerDataArray<size_t>* _termination_attempts; 110 111 WorkerDataArray<size_t>* _redirtied_cards; 112 113 double _cur_collection_par_time_ms; 114 double _cur_collection_code_root_fixup_time_ms; 115 double _cur_strong_code_root_purge_time_ms; 116 117 double _cur_evac_fail_recalc_used; 118 double _cur_evac_fail_remove_self_forwards; 119 120 double _cur_string_dedup_fixup_time_ms; 121 122 double _cur_prepare_tlab_time_ms; 123 double _cur_resize_tlab_time_ms; 124 125 double _cur_derived_pointer_table_update_time_ms; 126 127 double _cur_clear_ct_time_ms; 128 double _cur_expand_heap_time_ms; 129 double _cur_ref_proc_time_ms; 130 double _cur_ref_enq_time_ms; 131 132 double _cur_collection_start_sec; 133 double _root_region_scan_wait_time_ms; 134 135 double _external_accounted_time_ms; 136 137 double _recorded_clear_claimed_marks_time_ms; 138 139 double _recorded_young_cset_choice_time_ms; 140 double _recorded_non_young_cset_choice_time_ms; 141 142 double _recorded_redirty_logged_cards_time_ms; 143 144 double _recorded_preserve_cm_referents_time_ms; 145 146 double _recorded_merge_pss_time_ms; 147 148 double _recorded_start_new_cset_time_ms; 149 150 double _recorded_total_free_cset_time_ms; 151 152 double _recorded_serial_free_cset_time_ms; 153 154 double _cur_fast_reclaim_humongous_time_ms; 155 double _cur_fast_reclaim_humongous_register_time_ms; 156 size_t _cur_fast_reclaim_humongous_total; 157 size_t _cur_fast_reclaim_humongous_candidates; 158 size_t _cur_fast_reclaim_humongous_reclaimed; 159 160 double _cur_verify_before_time_ms; 161 double _cur_verify_after_time_ms; 162 163 ReferenceProcessorPhaseTimes _ref_phase_times; 164 165 double worker_time(GCParPhases phase, uint worker); 166 void note_gc_end(); 167 void reset(); 168 169 template <class T> 170 void details(T* phase, const char* indent) const; 171 172 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const; 173 void debug_phase(WorkerDataArray<double>* phase) const; 174 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const; 175 176 void info_time(const char* name, double value) const; 177 void debug_time(const char* name, double value) const; 178 // This will print logs for both 'gc+phases' and 'gc+phases+ref'. 179 void debug_time_for_reference(const char* name, double value) const; 180 void trace_time(const char* name, double value) const; 181 void trace_count(const char* name, size_t value) const; 182 183 double print_pre_evacuate_collection_set() const; 184 double print_evacuate_collection_set() const; 185 double print_post_evacuate_collection_set() const; 186 void print_other(double accounted_ms) const; 187 188 public: 189 G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads); 190 void note_gc_start(); 191 void print(); 192 193 // record the time a phase took in seconds 194 void record_time_secs(GCParPhases phase, uint worker_i, double secs); 195 196 // add a number of seconds to a phase 197 void add_time_secs(GCParPhases phase, uint worker_i, double secs); 198 199 // Move a number of seconds from one phase to another. 200 void move_time_secs(GCParPhases from, GCParPhases to, uint worker_i, double secs); 201 202 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0); 203 204 // return the average time for a phase in milliseconds 205 double average_time_ms(GCParPhases phase); 206 207 size_t sum_thread_work_items(GCParPhases phase, uint index = 0); 208 209 public: 210 211 void record_prepare_tlab_time_ms(double ms) { 212 _cur_prepare_tlab_time_ms = ms; 213 } 214 215 void record_resize_tlab_time_ms(double ms) { 216 _cur_resize_tlab_time_ms = ms; 217 } 218 219 void record_derived_pointer_table_update_time(double ms) { 220 _cur_derived_pointer_table_update_time_ms = ms; 221 } 222 223 void record_clear_ct_time(double ms) { 224 _cur_clear_ct_time_ms = ms; 225 } 226 227 void record_expand_heap_time(double ms) { 228 _cur_expand_heap_time_ms = ms; 229 } 230 231 void record_par_time(double ms) { 232 _cur_collection_par_time_ms = ms; 233 } 234 235 void record_code_root_fixup_time(double ms) { 236 _cur_collection_code_root_fixup_time_ms = ms; 237 } 238 239 void record_strong_code_root_purge_time(double ms) { 240 _cur_strong_code_root_purge_time_ms = ms; 241 } 242 243 void record_evac_fail_recalc_used_time(double ms) { 244 _cur_evac_fail_recalc_used = ms; 245 } 246 247 void record_evac_fail_remove_self_forwards(double ms) { 248 _cur_evac_fail_remove_self_forwards = ms; 249 } 250 251 void record_string_dedup_fixup_time(double ms) { 252 _cur_string_dedup_fixup_time_ms = ms; 253 } 254 255 void record_ref_proc_time(double ms) { 256 _cur_ref_proc_time_ms = ms; 257 } 258 259 void record_ref_enq_time(double ms) { 260 _cur_ref_enq_time_ms = ms; 261 } 262 263 void record_root_region_scan_wait_time(double time_ms) { 264 _root_region_scan_wait_time_ms = time_ms; 265 } 266 267 void record_total_free_cset_time_ms(double time_ms) { 268 _recorded_total_free_cset_time_ms = time_ms; 269 } 270 271 void record_serial_free_cset_time_ms(double time_ms) { 272 _recorded_serial_free_cset_time_ms = time_ms; 273 } 274 275 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) { 276 _cur_fast_reclaim_humongous_register_time_ms = time_ms; 277 _cur_fast_reclaim_humongous_total = total; 278 _cur_fast_reclaim_humongous_candidates = candidates; 279 } 280 281 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) { 282 _cur_fast_reclaim_humongous_time_ms = value; 283 _cur_fast_reclaim_humongous_reclaimed = reclaimed; 284 } 285 286 void record_young_cset_choice_time_ms(double time_ms) { 287 _recorded_young_cset_choice_time_ms = time_ms; 288 } 289 290 void record_non_young_cset_choice_time_ms(double time_ms) { 291 _recorded_non_young_cset_choice_time_ms = time_ms; 292 } 293 294 void record_redirty_logged_cards_time_ms(double time_ms) { 295 _recorded_redirty_logged_cards_time_ms = time_ms; 296 } 297 298 void record_preserve_cm_referents_time_ms(double time_ms) { 299 _recorded_preserve_cm_referents_time_ms = time_ms; 300 } 301 302 void record_merge_pss_time_ms(double time_ms) { 303 _recorded_merge_pss_time_ms = time_ms; 304 } 305 306 void record_start_new_cset_time_ms(double time_ms) { 307 _recorded_start_new_cset_time_ms = time_ms; 308 } 309 310 void record_cur_collection_start_sec(double time_ms) { 311 _cur_collection_start_sec = time_ms; 312 } 313 314 void record_verify_before_time_ms(double time_ms) { 315 _cur_verify_before_time_ms = time_ms; 316 } 317 318 void record_verify_after_time_ms(double time_ms) { 319 _cur_verify_after_time_ms = time_ms; 320 } 321 322 void inc_external_accounted_time_ms(double time_ms) { 323 _external_accounted_time_ms += time_ms; 324 } 325 326 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) { 327 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms; 328 } 329 330 double cur_collection_start_sec() { 331 return _cur_collection_start_sec; 332 } 333 334 double cur_collection_par_time_ms() { 335 return _cur_collection_par_time_ms; 336 } 337 338 double cur_clear_ct_time_ms() { 339 return _cur_clear_ct_time_ms; 340 } 341 342 double cur_expand_heap_time_ms() { 343 return _cur_expand_heap_time_ms; 344 } 345 346 double root_region_scan_wait_time_ms() { 347 return _root_region_scan_wait_time_ms; 348 } 349 350 double young_cset_choice_time_ms() { 351 return _recorded_young_cset_choice_time_ms; 352 } 353 354 double total_free_cset_time_ms() { 355 return _recorded_total_free_cset_time_ms; 356 } 357 358 double non_young_cset_choice_time_ms() { 359 return _recorded_non_young_cset_choice_time_ms; 360 } 361 362 double fast_reclaim_humongous_time_ms() { 363 return _cur_fast_reclaim_humongous_time_ms; 364 } 365 366 ReferenceProcessorPhaseTimes* ref_phase_times() { return &_ref_phase_times; } 367 }; 368 369 class G1GCParPhaseTimesTracker : public StackObj { 370 double _start_time; 371 G1GCPhaseTimes::GCParPhases _phase; 372 G1GCPhaseTimes* _phase_times; 373 uint _worker_id; 374 public: 375 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id); 376 ~G1GCParPhaseTimesTracker(); 377 }; 378 379 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP