Mon, 29 Apr 2013 09:31:59 +0200
Merge
brutisso@3923 | 1 | /* |
brutisso@3923 | 2 | * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
brutisso@3923 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
brutisso@3923 | 4 | * |
brutisso@3923 | 5 | * This code is free software; you can redistribute it and/or modify it |
brutisso@3923 | 6 | * under the terms of the GNU General Public License version 2 only, as |
brutisso@3923 | 7 | * published by the Free Software Foundation. |
brutisso@3923 | 8 | * |
brutisso@3923 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
brutisso@3923 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
brutisso@3923 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
brutisso@3923 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
brutisso@3923 | 13 | * accompanied this code). |
brutisso@3923 | 14 | * |
brutisso@3923 | 15 | * You should have received a copy of the GNU General Public License version |
brutisso@3923 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
brutisso@3923 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
brutisso@3923 | 18 | * |
brutisso@3923 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
brutisso@3923 | 20 | * or visit www.oracle.com if you need additional information or have any |
brutisso@3923 | 21 | * questions. |
brutisso@3923 | 22 | * |
brutisso@3923 | 23 | */ |
brutisso@3923 | 24 | |
brutisso@3923 | 25 | |
brutisso@3923 | 26 | #include "precompiled.hpp" |
brutisso@3923 | 27 | #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
brutisso@3923 | 28 | #include "gc_implementation/g1/g1GCPhaseTimes.hpp" |
brutisso@3923 | 29 | #include "gc_implementation/g1/g1Log.hpp" |
brutisso@3923 | 30 | |
brutisso@3923 | 31 | // Helper class for avoiding interleaved logging |
brutisso@3923 | 32 | class LineBuffer: public StackObj { |
brutisso@3923 | 33 | |
brutisso@3923 | 34 | private: |
brutisso@3923 | 35 | static const int BUFFER_LEN = 1024; |
brutisso@3923 | 36 | static const int INDENT_CHARS = 3; |
brutisso@3923 | 37 | char _buffer[BUFFER_LEN]; |
brutisso@3923 | 38 | int _indent_level; |
brutisso@3923 | 39 | int _cur; |
brutisso@3923 | 40 | |
brutisso@3923 | 41 | void vappend(const char* format, va_list ap) { |
brutisso@3923 | 42 | int res = vsnprintf(&_buffer[_cur], BUFFER_LEN - _cur, format, ap); |
brutisso@3923 | 43 | if (res != -1) { |
brutisso@3923 | 44 | _cur += res; |
brutisso@3923 | 45 | } else { |
brutisso@3923 | 46 | DEBUG_ONLY(warning("buffer too small in LineBuffer");) |
brutisso@3923 | 47 | _buffer[BUFFER_LEN -1] = 0; |
brutisso@3923 | 48 | _cur = BUFFER_LEN; // vsnprintf above should not add to _buffer if we are called again |
brutisso@3923 | 49 | } |
brutisso@3923 | 50 | } |
brutisso@3923 | 51 | |
brutisso@3923 | 52 | public: |
brutisso@3923 | 53 | explicit LineBuffer(int indent_level): _indent_level(indent_level), _cur(0) { |
brutisso@3923 | 54 | for (; (_cur < BUFFER_LEN && _cur < (_indent_level * INDENT_CHARS)); _cur++) { |
brutisso@3923 | 55 | _buffer[_cur] = ' '; |
brutisso@3923 | 56 | } |
brutisso@3923 | 57 | } |
brutisso@3923 | 58 | |
brutisso@3923 | 59 | #ifndef PRODUCT |
brutisso@3923 | 60 | ~LineBuffer() { |
brutisso@3923 | 61 | assert(_cur == _indent_level * INDENT_CHARS, "pending data in buffer - append_and_print_cr() not called?"); |
brutisso@3923 | 62 | } |
brutisso@3923 | 63 | #endif |
brutisso@3923 | 64 | |
brutisso@3923 | 65 | void append(const char* format, ...) { |
brutisso@3923 | 66 | va_list ap; |
brutisso@3923 | 67 | va_start(ap, format); |
brutisso@3923 | 68 | vappend(format, ap); |
brutisso@3923 | 69 | va_end(ap); |
brutisso@3923 | 70 | } |
brutisso@3923 | 71 | |
brutisso@3923 | 72 | void append_and_print_cr(const char* format, ...) { |
brutisso@3923 | 73 | va_list ap; |
brutisso@3923 | 74 | va_start(ap, format); |
brutisso@3923 | 75 | vappend(format, ap); |
brutisso@3923 | 76 | va_end(ap); |
brutisso@3923 | 77 | gclog_or_tty->print_cr("%s", _buffer); |
brutisso@3923 | 78 | _cur = _indent_level * INDENT_CHARS; |
brutisso@3923 | 79 | } |
brutisso@3923 | 80 | }; |
brutisso@3923 | 81 | |
brutisso@4015 | 82 | template <class T> |
brutisso@4015 | 83 | void WorkerDataArray<T>::print(int level, const char* title) { |
brutisso@4015 | 84 | if (_length == 1) { |
brutisso@4015 | 85 | // No need for min, max, average and sum for only one worker |
brutisso@4015 | 86 | LineBuffer buf(level); |
brutisso@4015 | 87 | buf.append("[%s: ", title); |
brutisso@4015 | 88 | buf.append(_print_format, _data[0]); |
brutisso@4015 | 89 | buf.append_and_print_cr("]"); |
brutisso@4015 | 90 | return; |
brutisso@4015 | 91 | } |
brutisso@4015 | 92 | |
brutisso@4015 | 93 | T min = _data[0]; |
brutisso@4015 | 94 | T max = _data[0]; |
brutisso@4015 | 95 | T sum = 0; |
brutisso@4015 | 96 | |
brutisso@4015 | 97 | LineBuffer buf(level); |
brutisso@4015 | 98 | buf.append("[%s:", title); |
brutisso@4015 | 99 | for (uint i = 0; i < _length; ++i) { |
brutisso@4015 | 100 | T val = _data[i]; |
brutisso@4015 | 101 | min = MIN2(val, min); |
brutisso@4015 | 102 | max = MAX2(val, max); |
brutisso@4015 | 103 | sum += val; |
brutisso@4015 | 104 | if (G1Log::finest()) { |
brutisso@4015 | 105 | buf.append(" "); |
brutisso@4015 | 106 | buf.append(_print_format, val); |
brutisso@4015 | 107 | } |
brutisso@4015 | 108 | } |
brutisso@4015 | 109 | |
brutisso@4015 | 110 | if (G1Log::finest()) { |
brutisso@4015 | 111 | buf.append_and_print_cr(""); |
brutisso@4015 | 112 | } |
brutisso@4015 | 113 | |
brutisso@4015 | 114 | double avg = (double)sum / (double)_length; |
brutisso@4015 | 115 | buf.append(" Min: "); |
brutisso@4015 | 116 | buf.append(_print_format, min); |
brutisso@4015 | 117 | buf.append(", Avg: "); |
brutisso@4015 | 118 | buf.append("%.1lf", avg); // Always print average as a double |
brutisso@4015 | 119 | buf.append(", Max: "); |
brutisso@4015 | 120 | buf.append(_print_format, max); |
brutisso@4015 | 121 | buf.append(", Diff: "); |
brutisso@4015 | 122 | buf.append(_print_format, max - min); |
brutisso@4015 | 123 | if (_print_sum) { |
brutisso@4015 | 124 | // for things like the start and end times the sum is not |
brutisso@4015 | 125 | // that relevant |
brutisso@4015 | 126 | buf.append(", Sum: "); |
brutisso@4015 | 127 | buf.append(_print_format, sum); |
brutisso@4015 | 128 | } |
brutisso@4015 | 129 | buf.append_and_print_cr("]"); |
brutisso@4015 | 130 | } |
brutisso@4015 | 131 | |
jmasa@4097 | 132 | #ifndef PRODUCT |
brutisso@4015 | 133 | |
brutisso@4475 | 134 | template <> const int WorkerDataArray<int>::_uninitialized = -1; |
brutisso@4475 | 135 | template <> const double WorkerDataArray<double>::_uninitialized = -1.0; |
brutisso@4475 | 136 | template <> const size_t WorkerDataArray<size_t>::_uninitialized = (size_t)-1; |
brutisso@4475 | 137 | |
brutisso@4015 | 138 | template <class T> |
brutisso@4015 | 139 | void WorkerDataArray<T>::reset() { |
brutisso@4015 | 140 | for (uint i = 0; i < _length; i++) { |
brutisso@4475 | 141 | _data[i] = (T)_uninitialized; |
brutisso@4015 | 142 | } |
brutisso@4015 | 143 | } |
brutisso@4015 | 144 | |
brutisso@4015 | 145 | template <class T> |
brutisso@4015 | 146 | void WorkerDataArray<T>::verify() { |
brutisso@4015 | 147 | for (uint i = 0; i < _length; i++) { |
brutisso@4475 | 148 | assert(_data[i] != _uninitialized, |
brutisso@4475 | 149 | err_msg("Invalid data for worker " UINT32_FORMAT ", data: %lf, uninitialized: %lf", |
brutisso@4475 | 150 | i, (double)_data[i], (double)_uninitialized)); |
brutisso@4015 | 151 | } |
brutisso@4015 | 152 | } |
brutisso@4015 | 153 | |
brutisso@4015 | 154 | #endif |
brutisso@4015 | 155 | |
brutisso@3923 | 156 | G1GCPhaseTimes::G1GCPhaseTimes(uint max_gc_threads) : |
brutisso@3923 | 157 | _max_gc_threads(max_gc_threads), |
brutisso@3923 | 158 | _min_clear_cc_time_ms(-1.0), |
brutisso@3923 | 159 | _max_clear_cc_time_ms(-1.0), |
brutisso@3923 | 160 | _cur_clear_cc_time_ms(0.0), |
brutisso@3923 | 161 | _cum_clear_cc_time_ms(0.0), |
brutisso@4015 | 162 | _num_cc_clears(0L), |
brutisso@4015 | 163 | _last_gc_worker_start_times_ms(_max_gc_threads, "%.1lf", false), |
brutisso@4015 | 164 | _last_ext_root_scan_times_ms(_max_gc_threads, "%.1lf"), |
brutisso@4015 | 165 | _last_satb_filtering_times_ms(_max_gc_threads, "%.1lf"), |
brutisso@4015 | 166 | _last_update_rs_times_ms(_max_gc_threads, "%.1lf"), |
brutisso@4015 | 167 | _last_update_rs_processed_buffers(_max_gc_threads, "%d"), |
brutisso@4015 | 168 | _last_scan_rs_times_ms(_max_gc_threads, "%.1lf"), |
brutisso@4015 | 169 | _last_obj_copy_times_ms(_max_gc_threads, "%.1lf"), |
brutisso@4015 | 170 | _last_termination_times_ms(_max_gc_threads, "%.1lf"), |
brutisso@4015 | 171 | _last_termination_attempts(_max_gc_threads, SIZE_FORMAT), |
brutisso@4015 | 172 | _last_gc_worker_end_times_ms(_max_gc_threads, "%.1lf", false), |
brutisso@4015 | 173 | _last_gc_worker_times_ms(_max_gc_threads, "%.1lf"), |
brutisso@4015 | 174 | _last_gc_worker_other_times_ms(_max_gc_threads, "%.1lf") |
brutisso@3923 | 175 | { |
brutisso@3923 | 176 | assert(max_gc_threads > 0, "Must have some GC threads"); |
brutisso@3923 | 177 | } |
brutisso@3923 | 178 | |
brutisso@4015 | 179 | void G1GCPhaseTimes::note_gc_start(uint active_gc_threads) { |
brutisso@3923 | 180 | assert(active_gc_threads > 0, "The number of threads must be > 0"); |
brutisso@3923 | 181 | assert(active_gc_threads <= _max_gc_threads, "The number of active threads must be <= the max nubmer of threads"); |
brutisso@3923 | 182 | _active_gc_threads = active_gc_threads; |
brutisso@3923 | 183 | |
brutisso@4015 | 184 | _last_gc_worker_start_times_ms.reset(); |
brutisso@4015 | 185 | _last_ext_root_scan_times_ms.reset(); |
brutisso@4015 | 186 | _last_satb_filtering_times_ms.reset(); |
brutisso@4015 | 187 | _last_update_rs_times_ms.reset(); |
brutisso@4015 | 188 | _last_update_rs_processed_buffers.reset(); |
brutisso@4015 | 189 | _last_scan_rs_times_ms.reset(); |
brutisso@4015 | 190 | _last_obj_copy_times_ms.reset(); |
brutisso@4015 | 191 | _last_termination_times_ms.reset(); |
brutisso@4015 | 192 | _last_termination_attempts.reset(); |
brutisso@4015 | 193 | _last_gc_worker_end_times_ms.reset(); |
brutisso@4015 | 194 | _last_gc_worker_times_ms.reset(); |
brutisso@4015 | 195 | _last_gc_worker_other_times_ms.reset(); |
brutisso@3923 | 196 | } |
brutisso@3923 | 197 | |
brutisso@4015 | 198 | void G1GCPhaseTimes::note_gc_end() { |
brutisso@4015 | 199 | _last_gc_worker_start_times_ms.verify(); |
brutisso@4015 | 200 | _last_ext_root_scan_times_ms.verify(); |
brutisso@4015 | 201 | _last_satb_filtering_times_ms.verify(); |
brutisso@4015 | 202 | _last_update_rs_times_ms.verify(); |
brutisso@4015 | 203 | _last_update_rs_processed_buffers.verify(); |
brutisso@4015 | 204 | _last_scan_rs_times_ms.verify(); |
brutisso@4015 | 205 | _last_obj_copy_times_ms.verify(); |
brutisso@4015 | 206 | _last_termination_times_ms.verify(); |
brutisso@4015 | 207 | _last_termination_attempts.verify(); |
brutisso@4015 | 208 | _last_gc_worker_end_times_ms.verify(); |
brutisso@3923 | 209 | |
brutisso@4475 | 210 | for (uint i = 0; i < _active_gc_threads; i++) { |
brutisso@4475 | 211 | double worker_time = _last_gc_worker_end_times_ms.get(i) - _last_gc_worker_start_times_ms.get(i); |
brutisso@4475 | 212 | _last_gc_worker_times_ms.set(i, worker_time); |
brutisso@3923 | 213 | |
brutisso@4475 | 214 | double worker_known_time = _last_ext_root_scan_times_ms.get(i) + |
brutisso@4475 | 215 | _last_satb_filtering_times_ms.get(i) + |
brutisso@4475 | 216 | _last_update_rs_times_ms.get(i) + |
brutisso@4475 | 217 | _last_scan_rs_times_ms.get(i) + |
brutisso@4475 | 218 | _last_obj_copy_times_ms.get(i) + |
brutisso@4475 | 219 | _last_termination_times_ms.get(i); |
brutisso@3923 | 220 | |
brutisso@4475 | 221 | double worker_other_time = worker_time - worker_known_time; |
brutisso@4475 | 222 | _last_gc_worker_other_times_ms.set(i, worker_other_time); |
brutisso@4475 | 223 | } |
brutisso@3923 | 224 | |
brutisso@4015 | 225 | _last_gc_worker_times_ms.verify(); |
brutisso@4015 | 226 | _last_gc_worker_other_times_ms.verify(); |
brutisso@3923 | 227 | } |
brutisso@3923 | 228 | |
brutisso@3923 | 229 | void G1GCPhaseTimes::print_stats(int level, const char* str, double value) { |
brutisso@3923 | 230 | LineBuffer(level).append_and_print_cr("[%s: %.1lf ms]", str, value); |
brutisso@3923 | 231 | } |
brutisso@3923 | 232 | |
brutisso@3923 | 233 | void G1GCPhaseTimes::print_stats(int level, const char* str, double value, int workers) { |
brutisso@3923 | 234 | LineBuffer(level).append_and_print_cr("[%s: %.1lf ms, GC Workers: %d]", str, value, workers); |
brutisso@3923 | 235 | } |
brutisso@3923 | 236 | |
brutisso@3923 | 237 | double G1GCPhaseTimes::accounted_time_ms() { |
brutisso@3923 | 238 | // Subtract the root region scanning wait time. It's initialized to |
brutisso@3923 | 239 | // zero at the start of the pause. |
brutisso@3923 | 240 | double misc_time_ms = _root_region_scan_wait_time_ms; |
brutisso@3923 | 241 | |
brutisso@3923 | 242 | misc_time_ms += _cur_collection_par_time_ms; |
brutisso@3923 | 243 | |
brutisso@3923 | 244 | // Now subtract the time taken to fix up roots in generated code |
brutisso@3923 | 245 | misc_time_ms += _cur_collection_code_root_fixup_time_ms; |
brutisso@3923 | 246 | |
brutisso@3923 | 247 | // Subtract the time taken to clean the card table from the |
brutisso@3923 | 248 | // current value of "other time" |
brutisso@3923 | 249 | misc_time_ms += _cur_clear_ct_time_ms; |
brutisso@3923 | 250 | |
brutisso@3923 | 251 | return misc_time_ms; |
brutisso@3923 | 252 | } |
brutisso@3923 | 253 | |
brutisso@4015 | 254 | void G1GCPhaseTimes::print(double pause_time_sec) { |
brutisso@3923 | 255 | if (_root_region_scan_wait_time_ms > 0.0) { |
brutisso@3923 | 256 | print_stats(1, "Root Region Scan Waiting", _root_region_scan_wait_time_ms); |
brutisso@3923 | 257 | } |
brutisso@3923 | 258 | if (G1CollectedHeap::use_parallel_gc_threads()) { |
brutisso@3923 | 259 | print_stats(1, "Parallel Time", _cur_collection_par_time_ms, _active_gc_threads); |
brutisso@4015 | 260 | _last_gc_worker_start_times_ms.print(2, "GC Worker Start (ms)"); |
brutisso@4015 | 261 | _last_ext_root_scan_times_ms.print(2, "Ext Root Scanning (ms)"); |
brutisso@4015 | 262 | if (_last_satb_filtering_times_ms.sum() > 0.0) { |
brutisso@4015 | 263 | _last_satb_filtering_times_ms.print(2, "SATB Filtering (ms)"); |
brutisso@3923 | 264 | } |
brutisso@4015 | 265 | _last_update_rs_times_ms.print(2, "Update RS (ms)"); |
brutisso@4015 | 266 | _last_update_rs_processed_buffers.print(3, "Processed Buffers"); |
brutisso@4015 | 267 | _last_scan_rs_times_ms.print(2, "Scan RS (ms)"); |
brutisso@4015 | 268 | _last_obj_copy_times_ms.print(2, "Object Copy (ms)"); |
brutisso@4015 | 269 | _last_termination_times_ms.print(2, "Termination (ms)"); |
brutisso@3923 | 270 | if (G1Log::finest()) { |
brutisso@4015 | 271 | _last_termination_attempts.print(3, "Termination Attempts"); |
brutisso@3923 | 272 | } |
brutisso@4015 | 273 | _last_gc_worker_other_times_ms.print(2, "GC Worker Other (ms)"); |
brutisso@4015 | 274 | _last_gc_worker_times_ms.print(2, "GC Worker Total (ms)"); |
brutisso@4015 | 275 | _last_gc_worker_end_times_ms.print(2, "GC Worker End (ms)"); |
brutisso@4015 | 276 | } else { |
brutisso@4015 | 277 | _last_ext_root_scan_times_ms.print(1, "Ext Root Scanning (ms)"); |
brutisso@4015 | 278 | if (_last_satb_filtering_times_ms.sum() > 0.0) { |
brutisso@4015 | 279 | _last_satb_filtering_times_ms.print(1, "SATB Filtering (ms)"); |
brutisso@3923 | 280 | } |
brutisso@4015 | 281 | _last_update_rs_times_ms.print(1, "Update RS (ms)"); |
brutisso@4015 | 282 | _last_update_rs_processed_buffers.print(2, "Processed Buffers"); |
brutisso@4015 | 283 | _last_scan_rs_times_ms.print(1, "Scan RS (ms)"); |
brutisso@4015 | 284 | _last_obj_copy_times_ms.print(1, "Object Copy (ms)"); |
brutisso@3923 | 285 | } |
brutisso@3923 | 286 | print_stats(1, "Code Root Fixup", _cur_collection_code_root_fixup_time_ms); |
brutisso@3923 | 287 | print_stats(1, "Clear CT", _cur_clear_ct_time_ms); |
brutisso@3923 | 288 | if (Verbose && G1Log::finest()) { |
brutisso@3923 | 289 | print_stats(1, "Cur Clear CC", _cur_clear_cc_time_ms); |
brutisso@3923 | 290 | print_stats(1, "Cum Clear CC", _cum_clear_cc_time_ms); |
brutisso@3923 | 291 | print_stats(1, "Min Clear CC", _min_clear_cc_time_ms); |
brutisso@3923 | 292 | print_stats(1, "Max Clear CC", _max_clear_cc_time_ms); |
brutisso@3923 | 293 | if (_num_cc_clears > 0) { |
brutisso@3923 | 294 | print_stats(1, "Avg Clear CC", _cum_clear_cc_time_ms / ((double)_num_cc_clears)); |
brutisso@3923 | 295 | } |
brutisso@3923 | 296 | } |
brutisso@4015 | 297 | double misc_time_ms = pause_time_sec * MILLIUNITS - accounted_time_ms(); |
brutisso@3923 | 298 | print_stats(1, "Other", misc_time_ms); |
brutisso@4015 | 299 | if (_cur_verify_before_time_ms > 0.0) { |
brutisso@4015 | 300 | print_stats(2, "Verify Before", _cur_verify_before_time_ms); |
brutisso@4015 | 301 | } |
brutisso@3923 | 302 | print_stats(2, "Choose CSet", |
brutisso@3923 | 303 | (_recorded_young_cset_choice_time_ms + |
brutisso@3923 | 304 | _recorded_non_young_cset_choice_time_ms)); |
brutisso@3923 | 305 | print_stats(2, "Ref Proc", _cur_ref_proc_time_ms); |
brutisso@3923 | 306 | print_stats(2, "Ref Enq", _cur_ref_enq_time_ms); |
brutisso@3923 | 307 | print_stats(2, "Free CSet", |
brutisso@3923 | 308 | (_recorded_young_free_cset_time_ms + |
brutisso@3923 | 309 | _recorded_non_young_free_cset_time_ms)); |
brutisso@4015 | 310 | if (_cur_verify_after_time_ms > 0.0) { |
brutisso@4015 | 311 | print_stats(2, "Verify After", _cur_verify_after_time_ms); |
brutisso@4015 | 312 | } |
brutisso@3923 | 313 | } |
brutisso@3923 | 314 | |
brutisso@3923 | 315 | void G1GCPhaseTimes::record_cc_clear_time_ms(double ms) { |
brutisso@3923 | 316 | if (!(Verbose && G1Log::finest())) { |
brutisso@3923 | 317 | return; |
brutisso@3923 | 318 | } |
brutisso@3923 | 319 | |
brutisso@3923 | 320 | if (_min_clear_cc_time_ms < 0.0 || ms <= _min_clear_cc_time_ms) { |
brutisso@3923 | 321 | _min_clear_cc_time_ms = ms; |
brutisso@3923 | 322 | } |
brutisso@3923 | 323 | if (_max_clear_cc_time_ms < 0.0 || ms >= _max_clear_cc_time_ms) { |
brutisso@3923 | 324 | _max_clear_cc_time_ms = ms; |
brutisso@3923 | 325 | } |
brutisso@3923 | 326 | _cur_clear_cc_time_ms = ms; |
brutisso@3923 | 327 | _cum_clear_cc_time_ms += ms; |
brutisso@3923 | 328 | _num_cc_clears++; |
brutisso@3923 | 329 | } |