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annotate src/share/vm/runtime/fprofiler.hpp @ 18096:ca6d25be853b jdk8u25-b13
8044269: Analysis of archive files.
Summary: Add checksum verification.
Reviewed-by: iklam, dholmes, mschoene
| author | jiangli |
|---|---|
| date | Tue, 12 Aug 2014 17:46:16 -0400 |
| parents | 55fb97c4c58d |
| children | 4ca6dc0799b6 |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_RUNTIME_FPROFILER_HPP |
| 26 #define SHARE_VM_RUNTIME_FPROFILER_HPP | |
| 27 | |
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28 #include "utilities/macros.hpp" |
| 1972 | 29 #include "runtime/timer.hpp" |
| 30 | |
| 0 | 31 // a simple flat profiler for Java |
| 32 | |
| 33 | |
| 34 // Forward declaration of classes defined in this header file | |
| 35 class ThreadProfiler; | |
| 36 class ThreadProfilerMark; | |
| 37 class FlatProfiler; | |
| 38 class IntervalData; | |
| 39 | |
| 40 // Declarations of classes defined only in the implementation. | |
| 41 class ProfilerNode; | |
| 42 class FlatProfilerTask; | |
| 43 | |
| 44 enum TickPosition { | |
| 45 tp_code, | |
| 46 tp_native | |
| 47 }; | |
| 48 | |
| 49 // One of these guys is constructed as we enter interesting regions | |
| 50 // and destructed as we exit the region. While we are in the region | |
| 51 // ticks are allotted to the region. | |
| 52 class ThreadProfilerMark: public StackObj { | |
| 53 public: | |
| 54 // For now, the only thread-specific region is the class loader. | |
| 55 enum Region { noRegion, classLoaderRegion, extraRegion, maxRegion }; | |
| 56 | |
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57 ThreadProfilerMark(Region) NOT_FPROF_RETURN; |
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58 ~ThreadProfilerMark() NOT_FPROF_RETURN; |
| 0 | 59 |
| 60 private: | |
| 61 ThreadProfiler* _pp; | |
| 62 Region _r; | |
| 63 }; | |
| 64 | |
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65 #if INCLUDE_FPROF |
| 0 | 66 |
| 67 class IntervalData VALUE_OBJ_CLASS_SPEC { | |
| 68 // Just to keep these things all together | |
| 69 private: | |
| 70 int _interpreted; | |
| 71 int _compiled; | |
| 72 int _native; | |
| 73 int _compiling; | |
| 74 public: | |
| 75 int interpreted() { | |
| 76 return _interpreted; | |
| 77 } | |
| 78 int compiled() { | |
| 79 return _compiled; | |
| 80 } | |
| 81 int native() { | |
| 82 return _native; | |
| 83 } | |
| 84 int compiling() { | |
| 85 return _compiling; | |
| 86 } | |
| 87 int total() { | |
| 88 return (interpreted() + compiled() + native() + compiling()); | |
| 89 } | |
| 90 void inc_interpreted() { | |
| 91 _interpreted += 1; | |
| 92 } | |
| 93 void inc_compiled() { | |
| 94 _compiled += 1; | |
| 95 } | |
| 96 void inc_native() { | |
| 97 _native += 1; | |
| 98 } | |
| 99 void inc_compiling() { | |
| 100 _compiling += 1; | |
| 101 } | |
| 102 void reset() { | |
| 103 _interpreted = 0; | |
| 104 _compiled = 0; | |
| 105 _native = 0; | |
| 106 _compiling = 0; | |
| 107 } | |
| 108 static void print_header(outputStream* st); | |
| 109 void print_data(outputStream* st); | |
| 110 }; | |
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111 #endif // INCLUDE_FPROF |
| 0 | 112 |
| 6197 | 113 class ThreadProfiler: public CHeapObj<mtInternal> { |
| 0 | 114 public: |
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115 ThreadProfiler() NOT_FPROF_RETURN; |
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116 ~ThreadProfiler() NOT_FPROF_RETURN; |
| 0 | 117 |
| 118 // Resets the profiler | |
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119 void reset() NOT_FPROF_RETURN; |
| 0 | 120 |
| 121 // Activates the profiler for a certain thread | |
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122 void engage() NOT_FPROF_RETURN; |
| 0 | 123 |
| 124 // Deactivates the profiler | |
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125 void disengage() NOT_FPROF_RETURN; |
| 0 | 126 |
| 127 // Prints the collected profiling information | |
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128 void print(const char* thread_name) NOT_FPROF_RETURN; |
| 0 | 129 |
| 130 // Garbage Collection Support | |
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131 void oops_do(OopClosure* f) NOT_FPROF_RETURN; |
| 0 | 132 |
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133 #if INCLUDE_FPROF |
| 0 | 134 private: |
| 135 // for recording ticks. | |
| 136 friend class ProfilerNode; | |
| 137 char* area_bottom; // preallocated area for pnodes | |
| 138 char* area_top; | |
| 139 char* area_limit; | |
| 140 static int table_size; | |
| 141 ProfilerNode** table; | |
| 142 | |
| 143 private: | |
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144 void record_interpreted_tick(JavaThread* thread, frame fr, TickPosition where, int* ticks); |
| 0 | 145 void record_compiled_tick (JavaThread* thread, frame fr, TickPosition where); |
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146 void interpreted_update(Method* method, TickPosition where); |
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147 void compiled_update (Method* method, TickPosition where); |
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148 void stub_update (Method* method, const char* name, TickPosition where); |
| 0 | 149 void adapter_update (TickPosition where); |
| 150 | |
| 151 void runtime_stub_update(const CodeBlob* stub, const char* name, TickPosition where); | |
| 152 void unknown_compiled_update (const CodeBlob* cb, TickPosition where); | |
| 153 | |
| 154 void vm_update (TickPosition where); | |
| 155 void vm_update (const char* name, TickPosition where); | |
| 156 | |
| 157 void record_tick_for_running_frame(JavaThread* thread, frame fr); | |
| 158 void record_tick_for_calling_frame(JavaThread* thread, frame fr); | |
| 159 | |
| 160 void initialize(); | |
| 161 | |
| 162 static int entry(int value); | |
| 163 | |
| 164 | |
| 165 private: | |
| 166 friend class FlatProfiler; | |
| 167 void record_tick(JavaThread* thread); | |
| 168 bool engaged; | |
| 169 // so we can do percentages for this thread, and quick checks for activity | |
| 170 int thread_ticks; | |
| 171 int compiler_ticks; | |
| 172 int interpreter_ticks; | |
| 173 | |
| 174 public: | |
| 175 void inc_thread_ticks() { thread_ticks += 1; } | |
| 176 | |
| 177 private: | |
| 178 friend class ThreadProfilerMark; | |
| 179 // counters for thread-specific regions | |
| 180 bool region_flag[ThreadProfilerMark::maxRegion]; | |
| 181 int class_loader_ticks; | |
| 182 int extra_ticks; | |
| 183 | |
| 184 private: | |
| 185 // other thread-specific regions | |
| 186 int blocked_ticks; | |
| 187 enum UnknownTickSites { | |
| 188 ut_null_method, | |
| 189 ut_vtable_stubs, | |
| 190 ut_running_frame, | |
| 191 ut_calling_frame, | |
| 192 ut_no_pc, | |
| 193 ut_no_last_Java_frame, | |
| 194 ut_unknown_thread_state, | |
| 195 ut_end | |
| 196 }; | |
| 197 int unknown_ticks_array[ut_end]; | |
| 198 int unknown_ticks() { | |
| 199 int result = 0; | |
| 200 for (int ut = 0; ut < ut_end; ut += 1) { | |
| 201 result += unknown_ticks_array[ut]; | |
| 202 } | |
| 203 return result; | |
| 204 } | |
| 205 | |
| 206 elapsedTimer timer; | |
| 207 | |
| 208 // For interval timing | |
| 209 private: | |
| 210 IntervalData _interval_data; | |
| 211 IntervalData interval_data() { | |
| 212 return _interval_data; | |
| 213 } | |
| 214 IntervalData* interval_data_ref() { | |
| 215 return &_interval_data; | |
| 216 } | |
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217 #endif // INCLUDE_FPROF |
| 0 | 218 }; |
| 219 | |
| 220 class FlatProfiler: AllStatic { | |
| 221 public: | |
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222 static void reset() NOT_FPROF_RETURN ; |
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223 static void engage(JavaThread* mainThread, bool fullProfile) NOT_FPROF_RETURN ; |
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224 static void disengage() NOT_FPROF_RETURN ; |
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225 static void print(int unused) NOT_FPROF_RETURN ; |
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226 static bool is_active() NOT_FPROF_RETURN_(false) ; |
| 0 | 227 |
| 228 // This is NULL if each thread has its own thread profiler, | |
| 229 // else this is the single thread profiler used by all threads. | |
| 230 // In particular it makes a difference during garbage collection, | |
| 231 // where you only want to traverse each thread profiler once. | |
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232 static ThreadProfiler* get_thread_profiler() NOT_FPROF_RETURN_(NULL); |
| 0 | 233 |
| 234 // Garbage Collection Support | |
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235 static void oops_do(OopClosure* f) NOT_FPROF_RETURN ; |
| 0 | 236 |
| 237 // Support for disassembler to inspect the PCRecorder | |
| 238 | |
| 239 // Returns the start address for a given pc | |
| 240 // NULL is returned if the PCRecorder is inactive | |
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241 static address bucket_start_for(address pc) NOT_FPROF_RETURN_(NULL); |
| 0 | 242 |
| 243 enum { MillisecsPerTick = 10 }; // ms per profiling ticks | |
| 244 | |
| 245 // Returns the number of ticks recorded for the bucket | |
| 246 // pc belongs to. | |
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247 static int bucket_count_for(address pc) NOT_FPROF_RETURN_(0); |
| 0 | 248 |
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249 #if INCLUDE_FPROF |
| 0 | 250 |
| 251 private: | |
| 252 static bool full_profile() { | |
| 253 return full_profile_flag; | |
| 254 } | |
| 255 | |
| 256 friend class ThreadProfiler; | |
| 257 // the following group of ticks cover everything that's not attributed to individual Java methods | |
| 258 static int received_gc_ticks; // ticks during which gc was active | |
| 259 static int vm_operation_ticks; // total ticks in vm_operations other than GC | |
| 260 static int threads_lock_ticks; // the number of times we couldn't get the Threads_lock without blocking | |
| 261 static int blocked_ticks; // ticks when the thread was blocked. | |
| 262 static int class_loader_ticks; // total ticks in class loader | |
| 263 static int extra_ticks; // total ticks an extra temporary measuring | |
| 264 static int compiler_ticks; // total ticks in compilation | |
| 265 static int interpreter_ticks; // ticks in unknown interpreted method | |
| 266 static int deopt_ticks; // ticks in deoptimization | |
| 267 static int unknown_ticks; // ticks that cannot be categorized | |
| 268 static int received_ticks; // ticks that were received by task | |
| 269 static int delivered_ticks; // ticks that were delivered by task | |
| 270 static int non_method_ticks() { | |
| 271 return | |
| 272 ( received_gc_ticks | |
| 273 + vm_operation_ticks | |
| 274 + deopt_ticks | |
| 275 + threads_lock_ticks | |
| 276 + blocked_ticks | |
| 277 + compiler_ticks | |
| 278 + interpreter_ticks | |
| 279 + unknown_ticks ); | |
| 280 } | |
| 281 static elapsedTimer timer; | |
| 282 | |
| 283 // Counts of each of the byte codes | |
| 284 static int* bytecode_ticks; | |
| 285 static int* bytecode_ticks_stub; | |
| 286 static void print_byte_code_statistics(); | |
| 287 | |
| 288 // the ticks below are for continuous profiling (to adjust recompilation, etc.) | |
| 289 static int all_ticks; // total count of ticks received so far | |
| 290 static int all_int_ticks; // ticks in interpreter | |
| 291 static int all_comp_ticks; // ticks in compiled code (+ native) | |
| 292 static bool full_profile_flag; // collecting full profile? | |
| 293 | |
| 294 // to accumulate thread-specific data | |
| 295 // if we aren't profiling individual threads. | |
| 296 static ThreadProfiler* thread_profiler; | |
| 297 static ThreadProfiler* vm_thread_profiler; | |
| 298 | |
| 299 static void allocate_table(); | |
| 300 | |
| 301 // The task that periodically interrupts things. | |
| 302 friend class FlatProfilerTask; | |
| 303 static FlatProfilerTask* task; | |
| 304 static void record_vm_operation(); | |
| 305 static void record_vm_tick(); | |
| 306 static void record_thread_ticks(); | |
| 307 | |
| 308 // For interval analysis | |
| 309 private: | |
| 310 static int interval_ticks_previous; // delivered_ticks from the last interval | |
| 311 static void interval_record_thread(ThreadProfiler* tp); // extract ticks from ThreadProfiler. | |
| 312 static void interval_print(); // print interval data. | |
| 313 static void interval_reset(); // reset interval data. | |
| 314 enum {interval_print_size = 10}; | |
| 315 static IntervalData* interval_data; | |
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316 #endif // INCLUDE_FPROF |
| 0 | 317 }; |
| 1972 | 318 |
| 319 #endif // SHARE_VM_RUNTIME_FPROFILER_HPP |