Mercurial > hg > truffle
annotate src/share/vm/runtime/fprofiler.hpp @ 196:d1605aabd0a1 jdk7-b30
6719955: Update copyright year
Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell
| author | xdono |
|---|---|
| date | Wed, 02 Jul 2008 12:55:16 -0700 |
| parents | 93b6525e3b82 |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 196 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 // a simple flat profiler for Java | |
| 26 | |
| 27 | |
| 28 // Forward declaration of classes defined in this header file | |
| 29 class ThreadProfiler; | |
| 30 class ThreadProfilerMark; | |
| 31 class FlatProfiler; | |
| 32 class IntervalData; | |
| 33 | |
| 34 // Declarations of classes defined only in the implementation. | |
| 35 class ProfilerNode; | |
| 36 class FlatProfilerTask; | |
| 37 | |
| 38 enum TickPosition { | |
| 39 tp_code, | |
| 40 tp_native | |
| 41 }; | |
| 42 | |
| 43 // One of these guys is constructed as we enter interesting regions | |
| 44 // and destructed as we exit the region. While we are in the region | |
| 45 // ticks are allotted to the region. | |
| 46 class ThreadProfilerMark: public StackObj { | |
| 47 public: | |
| 48 // For now, the only thread-specific region is the class loader. | |
| 49 enum Region { noRegion, classLoaderRegion, extraRegion, maxRegion }; | |
| 50 | |
| 51 ThreadProfilerMark(Region) KERNEL_RETURN; | |
| 52 ~ThreadProfilerMark() KERNEL_RETURN; | |
| 53 | |
| 54 private: | |
| 55 ThreadProfiler* _pp; | |
| 56 Region _r; | |
| 57 }; | |
| 58 | |
| 59 #ifndef FPROF_KERNEL | |
| 60 | |
| 61 class IntervalData VALUE_OBJ_CLASS_SPEC { | |
| 62 // Just to keep these things all together | |
| 63 private: | |
| 64 int _interpreted; | |
| 65 int _compiled; | |
| 66 int _native; | |
| 67 int _compiling; | |
| 68 public: | |
| 69 int interpreted() { | |
| 70 return _interpreted; | |
| 71 } | |
| 72 int compiled() { | |
| 73 return _compiled; | |
| 74 } | |
| 75 int native() { | |
| 76 return _native; | |
| 77 } | |
| 78 int compiling() { | |
| 79 return _compiling; | |
| 80 } | |
| 81 int total() { | |
| 82 return (interpreted() + compiled() + native() + compiling()); | |
| 83 } | |
| 84 void inc_interpreted() { | |
| 85 _interpreted += 1; | |
| 86 } | |
| 87 void inc_compiled() { | |
| 88 _compiled += 1; | |
| 89 } | |
| 90 void inc_native() { | |
| 91 _native += 1; | |
| 92 } | |
| 93 void inc_compiling() { | |
| 94 _compiling += 1; | |
| 95 } | |
| 96 void reset() { | |
| 97 _interpreted = 0; | |
| 98 _compiled = 0; | |
| 99 _native = 0; | |
| 100 _compiling = 0; | |
| 101 } | |
| 102 static void print_header(outputStream* st); | |
| 103 void print_data(outputStream* st); | |
| 104 }; | |
| 105 #endif // FPROF_KERNEL | |
| 106 | |
| 107 class ThreadProfiler: public CHeapObj { | |
| 108 public: | |
| 109 ThreadProfiler() KERNEL_RETURN; | |
| 110 ~ThreadProfiler() KERNEL_RETURN; | |
| 111 | |
| 112 // Resets the profiler | |
| 113 void reset() KERNEL_RETURN; | |
| 114 | |
| 115 // Activates the profiler for a certain thread | |
| 116 void engage() KERNEL_RETURN; | |
| 117 | |
| 118 // Deactivates the profiler | |
| 119 void disengage() KERNEL_RETURN; | |
| 120 | |
| 121 // Prints the collected profiling information | |
| 122 void print(const char* thread_name) KERNEL_RETURN; | |
| 123 | |
| 124 // Garbage Collection Support | |
| 125 void oops_do(OopClosure* f) KERNEL_RETURN; | |
| 126 | |
| 127 #ifndef FPROF_KERNEL | |
| 128 private: | |
| 129 // for recording ticks. | |
| 130 friend class ProfilerNode; | |
| 131 char* area_bottom; // preallocated area for pnodes | |
| 132 char* area_top; | |
| 133 char* area_limit; | |
| 134 static int table_size; | |
| 135 ProfilerNode** table; | |
| 136 | |
| 137 private: | |
|
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93b6525e3b82
6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
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changeset
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138 void record_interpreted_tick(JavaThread* thread, frame fr, TickPosition where, int* ticks); |
| 0 | 139 void record_compiled_tick (JavaThread* thread, frame fr, TickPosition where); |
| 140 void interpreted_update(methodOop method, TickPosition where); | |
| 141 void compiled_update (methodOop method, TickPosition where); | |
| 142 void stub_update (methodOop method, const char* name, TickPosition where); | |
| 143 void adapter_update (TickPosition where); | |
| 144 | |
| 145 void runtime_stub_update(const CodeBlob* stub, const char* name, TickPosition where); | |
| 146 void unknown_compiled_update (const CodeBlob* cb, TickPosition where); | |
| 147 | |
| 148 void vm_update (TickPosition where); | |
| 149 void vm_update (const char* name, TickPosition where); | |
| 150 | |
| 151 void record_tick_for_running_frame(JavaThread* thread, frame fr); | |
| 152 void record_tick_for_calling_frame(JavaThread* thread, frame fr); | |
| 153 | |
| 154 void initialize(); | |
| 155 | |
| 156 static int entry(int value); | |
| 157 | |
| 158 | |
| 159 private: | |
| 160 friend class FlatProfiler; | |
| 161 void record_tick(JavaThread* thread); | |
| 162 bool engaged; | |
| 163 // so we can do percentages for this thread, and quick checks for activity | |
| 164 int thread_ticks; | |
| 165 int compiler_ticks; | |
| 166 int interpreter_ticks; | |
| 167 | |
| 168 public: | |
| 169 void inc_thread_ticks() { thread_ticks += 1; } | |
| 170 | |
| 171 private: | |
| 172 friend class ThreadProfilerMark; | |
| 173 // counters for thread-specific regions | |
| 174 bool region_flag[ThreadProfilerMark::maxRegion]; | |
| 175 int class_loader_ticks; | |
| 176 int extra_ticks; | |
| 177 | |
| 178 private: | |
| 179 // other thread-specific regions | |
| 180 int blocked_ticks; | |
| 181 enum UnknownTickSites { | |
| 182 ut_null_method, | |
| 183 ut_vtable_stubs, | |
| 184 ut_running_frame, | |
| 185 ut_calling_frame, | |
| 186 ut_no_pc, | |
| 187 ut_no_last_Java_frame, | |
| 188 ut_unknown_thread_state, | |
| 189 ut_end | |
| 190 }; | |
| 191 int unknown_ticks_array[ut_end]; | |
| 192 int unknown_ticks() { | |
| 193 int result = 0; | |
| 194 for (int ut = 0; ut < ut_end; ut += 1) { | |
| 195 result += unknown_ticks_array[ut]; | |
| 196 } | |
| 197 return result; | |
| 198 } | |
| 199 | |
| 200 elapsedTimer timer; | |
| 201 | |
| 202 // For interval timing | |
| 203 private: | |
| 204 IntervalData _interval_data; | |
| 205 IntervalData interval_data() { | |
| 206 return _interval_data; | |
| 207 } | |
| 208 IntervalData* interval_data_ref() { | |
| 209 return &_interval_data; | |
| 210 } | |
| 211 #endif // FPROF_KERNEL | |
| 212 }; | |
| 213 | |
| 214 class FlatProfiler: AllStatic { | |
| 215 public: | |
| 216 static void reset() KERNEL_RETURN ; | |
| 217 static void engage(JavaThread* mainThread, bool fullProfile) KERNEL_RETURN ; | |
| 218 static void disengage() KERNEL_RETURN ; | |
| 219 static void print(int unused) KERNEL_RETURN ; | |
| 220 static bool is_active() KERNEL_RETURN_(return false;) ; | |
| 221 | |
| 222 // This is NULL if each thread has its own thread profiler, | |
| 223 // else this is the single thread profiler used by all threads. | |
| 224 // In particular it makes a difference during garbage collection, | |
| 225 // where you only want to traverse each thread profiler once. | |
| 226 static ThreadProfiler* get_thread_profiler() KERNEL_RETURN_(return NULL;); | |
| 227 | |
| 228 // Garbage Collection Support | |
| 229 static void oops_do(OopClosure* f) KERNEL_RETURN ; | |
| 230 | |
| 231 // Support for disassembler to inspect the PCRecorder | |
| 232 | |
| 233 // Returns the start address for a given pc | |
| 234 // NULL is returned if the PCRecorder is inactive | |
| 235 static address bucket_start_for(address pc) KERNEL_RETURN_(return NULL;); | |
| 236 | |
| 237 enum { MillisecsPerTick = 10 }; // ms per profiling ticks | |
| 238 | |
| 239 // Returns the number of ticks recorded for the bucket | |
| 240 // pc belongs to. | |
| 241 static int bucket_count_for(address pc) KERNEL_RETURN_(return 0;); | |
| 242 | |
| 243 #ifndef FPROF_KERNEL | |
| 244 | |
| 245 private: | |
| 246 static bool full_profile() { | |
| 247 return full_profile_flag; | |
| 248 } | |
| 249 | |
| 250 friend class ThreadProfiler; | |
| 251 // the following group of ticks cover everything that's not attributed to individual Java methods | |
| 252 static int received_gc_ticks; // ticks during which gc was active | |
| 253 static int vm_operation_ticks; // total ticks in vm_operations other than GC | |
| 254 static int threads_lock_ticks; // the number of times we couldn't get the Threads_lock without blocking | |
| 255 static int blocked_ticks; // ticks when the thread was blocked. | |
| 256 static int class_loader_ticks; // total ticks in class loader | |
| 257 static int extra_ticks; // total ticks an extra temporary measuring | |
| 258 static int compiler_ticks; // total ticks in compilation | |
| 259 static int interpreter_ticks; // ticks in unknown interpreted method | |
| 260 static int deopt_ticks; // ticks in deoptimization | |
| 261 static int unknown_ticks; // ticks that cannot be categorized | |
| 262 static int received_ticks; // ticks that were received by task | |
| 263 static int delivered_ticks; // ticks that were delivered by task | |
| 264 static int non_method_ticks() { | |
| 265 return | |
| 266 ( received_gc_ticks | |
| 267 + vm_operation_ticks | |
| 268 + deopt_ticks | |
| 269 + threads_lock_ticks | |
| 270 + blocked_ticks | |
| 271 + compiler_ticks | |
| 272 + interpreter_ticks | |
| 273 + unknown_ticks ); | |
| 274 } | |
| 275 static elapsedTimer timer; | |
| 276 | |
| 277 // Counts of each of the byte codes | |
| 278 static int* bytecode_ticks; | |
| 279 static int* bytecode_ticks_stub; | |
| 280 static void print_byte_code_statistics(); | |
| 281 | |
| 282 // the ticks below are for continuous profiling (to adjust recompilation, etc.) | |
| 283 static int all_ticks; // total count of ticks received so far | |
| 284 static int all_int_ticks; // ticks in interpreter | |
| 285 static int all_comp_ticks; // ticks in compiled code (+ native) | |
| 286 static bool full_profile_flag; // collecting full profile? | |
| 287 | |
| 288 // to accumulate thread-specific data | |
| 289 // if we aren't profiling individual threads. | |
| 290 static ThreadProfiler* thread_profiler; | |
| 291 static ThreadProfiler* vm_thread_profiler; | |
| 292 | |
| 293 static void allocate_table(); | |
| 294 | |
| 295 // The task that periodically interrupts things. | |
| 296 friend class FlatProfilerTask; | |
| 297 static FlatProfilerTask* task; | |
| 298 static void record_vm_operation(); | |
| 299 static void record_vm_tick(); | |
| 300 static void record_thread_ticks(); | |
| 301 | |
| 302 // For interval analysis | |
| 303 private: | |
| 304 static int interval_ticks_previous; // delivered_ticks from the last interval | |
| 305 static void interval_record_thread(ThreadProfiler* tp); // extract ticks from ThreadProfiler. | |
| 306 static void interval_print(); // print interval data. | |
| 307 static void interval_reset(); // reset interval data. | |
| 308 enum {interval_print_size = 10}; | |
| 309 static IntervalData* interval_data; | |
| 310 #endif // FPROF_KERNEL | |
| 311 }; |