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annotate src/share/vm/runtime/fprofiler.hpp @ 4724:0841c0ec2ed6
7123810: new hotspot build - hs23-b10
Reviewed-by: jcoomes
author | amurillo |
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date | Fri, 23 Dec 2011 15:29:34 -0800 |
parents | f08d439fab8c |
children | d2a62e0f25eb |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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 | |
28 #include "runtime/timer.hpp" | |
29 #ifdef TARGET_OS_FAMILY_linux | |
30 # include "thread_linux.inline.hpp" | |
31 #endif | |
32 #ifdef TARGET_OS_FAMILY_solaris | |
33 # include "thread_solaris.inline.hpp" | |
34 #endif | |
35 #ifdef TARGET_OS_FAMILY_windows | |
36 # include "thread_windows.inline.hpp" | |
37 #endif | |
3960 | 38 #ifdef TARGET_OS_FAMILY_bsd |
39 # include "thread_bsd.inline.hpp" | |
40 #endif | |
1972 | 41 |
0 | 42 // a simple flat profiler for Java |
43 | |
44 | |
45 // Forward declaration of classes defined in this header file | |
46 class ThreadProfiler; | |
47 class ThreadProfilerMark; | |
48 class FlatProfiler; | |
49 class IntervalData; | |
50 | |
51 // Declarations of classes defined only in the implementation. | |
52 class ProfilerNode; | |
53 class FlatProfilerTask; | |
54 | |
55 enum TickPosition { | |
56 tp_code, | |
57 tp_native | |
58 }; | |
59 | |
60 // One of these guys is constructed as we enter interesting regions | |
61 // and destructed as we exit the region. While we are in the region | |
62 // ticks are allotted to the region. | |
63 class ThreadProfilerMark: public StackObj { | |
64 public: | |
65 // For now, the only thread-specific region is the class loader. | |
66 enum Region { noRegion, classLoaderRegion, extraRegion, maxRegion }; | |
67 | |
68 ThreadProfilerMark(Region) KERNEL_RETURN; | |
69 ~ThreadProfilerMark() KERNEL_RETURN; | |
70 | |
71 private: | |
72 ThreadProfiler* _pp; | |
73 Region _r; | |
74 }; | |
75 | |
76 #ifndef FPROF_KERNEL | |
77 | |
78 class IntervalData VALUE_OBJ_CLASS_SPEC { | |
79 // Just to keep these things all together | |
80 private: | |
81 int _interpreted; | |
82 int _compiled; | |
83 int _native; | |
84 int _compiling; | |
85 public: | |
86 int interpreted() { | |
87 return _interpreted; | |
88 } | |
89 int compiled() { | |
90 return _compiled; | |
91 } | |
92 int native() { | |
93 return _native; | |
94 } | |
95 int compiling() { | |
96 return _compiling; | |
97 } | |
98 int total() { | |
99 return (interpreted() + compiled() + native() + compiling()); | |
100 } | |
101 void inc_interpreted() { | |
102 _interpreted += 1; | |
103 } | |
104 void inc_compiled() { | |
105 _compiled += 1; | |
106 } | |
107 void inc_native() { | |
108 _native += 1; | |
109 } | |
110 void inc_compiling() { | |
111 _compiling += 1; | |
112 } | |
113 void reset() { | |
114 _interpreted = 0; | |
115 _compiled = 0; | |
116 _native = 0; | |
117 _compiling = 0; | |
118 } | |
119 static void print_header(outputStream* st); | |
120 void print_data(outputStream* st); | |
121 }; | |
122 #endif // FPROF_KERNEL | |
123 | |
124 class ThreadProfiler: public CHeapObj { | |
125 public: | |
126 ThreadProfiler() KERNEL_RETURN; | |
127 ~ThreadProfiler() KERNEL_RETURN; | |
128 | |
129 // Resets the profiler | |
130 void reset() KERNEL_RETURN; | |
131 | |
132 // Activates the profiler for a certain thread | |
133 void engage() KERNEL_RETURN; | |
134 | |
135 // Deactivates the profiler | |
136 void disengage() KERNEL_RETURN; | |
137 | |
138 // Prints the collected profiling information | |
139 void print(const char* thread_name) KERNEL_RETURN; | |
140 | |
141 // Garbage Collection Support | |
142 void oops_do(OopClosure* f) KERNEL_RETURN; | |
143 | |
144 #ifndef FPROF_KERNEL | |
145 private: | |
146 // for recording ticks. | |
147 friend class ProfilerNode; | |
148 char* area_bottom; // preallocated area for pnodes | |
149 char* area_top; | |
150 char* area_limit; | |
151 static int table_size; | |
152 ProfilerNode** table; | |
153 | |
154 private: | |
107
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155 void record_interpreted_tick(JavaThread* thread, frame fr, TickPosition where, int* ticks); |
0 | 156 void record_compiled_tick (JavaThread* thread, frame fr, TickPosition where); |
157 void interpreted_update(methodOop method, TickPosition where); | |
158 void compiled_update (methodOop method, TickPosition where); | |
159 void stub_update (methodOop method, const char* name, TickPosition where); | |
160 void adapter_update (TickPosition where); | |
161 | |
162 void runtime_stub_update(const CodeBlob* stub, const char* name, TickPosition where); | |
163 void unknown_compiled_update (const CodeBlob* cb, TickPosition where); | |
164 | |
165 void vm_update (TickPosition where); | |
166 void vm_update (const char* name, TickPosition where); | |
167 | |
168 void record_tick_for_running_frame(JavaThread* thread, frame fr); | |
169 void record_tick_for_calling_frame(JavaThread* thread, frame fr); | |
170 | |
171 void initialize(); | |
172 | |
173 static int entry(int value); | |
174 | |
175 | |
176 private: | |
177 friend class FlatProfiler; | |
178 void record_tick(JavaThread* thread); | |
179 bool engaged; | |
180 // so we can do percentages for this thread, and quick checks for activity | |
181 int thread_ticks; | |
182 int compiler_ticks; | |
183 int interpreter_ticks; | |
184 | |
185 public: | |
186 void inc_thread_ticks() { thread_ticks += 1; } | |
187 | |
188 private: | |
189 friend class ThreadProfilerMark; | |
190 // counters for thread-specific regions | |
191 bool region_flag[ThreadProfilerMark::maxRegion]; | |
192 int class_loader_ticks; | |
193 int extra_ticks; | |
194 | |
195 private: | |
196 // other thread-specific regions | |
197 int blocked_ticks; | |
198 enum UnknownTickSites { | |
199 ut_null_method, | |
200 ut_vtable_stubs, | |
201 ut_running_frame, | |
202 ut_calling_frame, | |
203 ut_no_pc, | |
204 ut_no_last_Java_frame, | |
205 ut_unknown_thread_state, | |
206 ut_end | |
207 }; | |
208 int unknown_ticks_array[ut_end]; | |
209 int unknown_ticks() { | |
210 int result = 0; | |
211 for (int ut = 0; ut < ut_end; ut += 1) { | |
212 result += unknown_ticks_array[ut]; | |
213 } | |
214 return result; | |
215 } | |
216 | |
217 elapsedTimer timer; | |
218 | |
219 // For interval timing | |
220 private: | |
221 IntervalData _interval_data; | |
222 IntervalData interval_data() { | |
223 return _interval_data; | |
224 } | |
225 IntervalData* interval_data_ref() { | |
226 return &_interval_data; | |
227 } | |
228 #endif // FPROF_KERNEL | |
229 }; | |
230 | |
231 class FlatProfiler: AllStatic { | |
232 public: | |
233 static void reset() KERNEL_RETURN ; | |
234 static void engage(JavaThread* mainThread, bool fullProfile) KERNEL_RETURN ; | |
235 static void disengage() KERNEL_RETURN ; | |
236 static void print(int unused) KERNEL_RETURN ; | |
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237 static bool is_active() KERNEL_RETURN_(false) ; |
0 | 238 |
239 // This is NULL if each thread has its own thread profiler, | |
240 // else this is the single thread profiler used by all threads. | |
241 // In particular it makes a difference during garbage collection, | |
242 // where you only want to traverse each thread profiler once. | |
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243 static ThreadProfiler* get_thread_profiler() KERNEL_RETURN_(NULL); |
0 | 244 |
245 // Garbage Collection Support | |
246 static void oops_do(OopClosure* f) KERNEL_RETURN ; | |
247 | |
248 // Support for disassembler to inspect the PCRecorder | |
249 | |
250 // Returns the start address for a given pc | |
251 // NULL is returned if the PCRecorder is inactive | |
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252 static address bucket_start_for(address pc) KERNEL_RETURN_(NULL); |
0 | 253 |
254 enum { MillisecsPerTick = 10 }; // ms per profiling ticks | |
255 | |
256 // Returns the number of ticks recorded for the bucket | |
257 // pc belongs to. | |
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258 static int bucket_count_for(address pc) KERNEL_RETURN_(0); |
0 | 259 |
260 #ifndef FPROF_KERNEL | |
261 | |
262 private: | |
263 static bool full_profile() { | |
264 return full_profile_flag; | |
265 } | |
266 | |
267 friend class ThreadProfiler; | |
268 // the following group of ticks cover everything that's not attributed to individual Java methods | |
269 static int received_gc_ticks; // ticks during which gc was active | |
270 static int vm_operation_ticks; // total ticks in vm_operations other than GC | |
271 static int threads_lock_ticks; // the number of times we couldn't get the Threads_lock without blocking | |
272 static int blocked_ticks; // ticks when the thread was blocked. | |
273 static int class_loader_ticks; // total ticks in class loader | |
274 static int extra_ticks; // total ticks an extra temporary measuring | |
275 static int compiler_ticks; // total ticks in compilation | |
276 static int interpreter_ticks; // ticks in unknown interpreted method | |
277 static int deopt_ticks; // ticks in deoptimization | |
278 static int unknown_ticks; // ticks that cannot be categorized | |
279 static int received_ticks; // ticks that were received by task | |
280 static int delivered_ticks; // ticks that were delivered by task | |
281 static int non_method_ticks() { | |
282 return | |
283 ( received_gc_ticks | |
284 + vm_operation_ticks | |
285 + deopt_ticks | |
286 + threads_lock_ticks | |
287 + blocked_ticks | |
288 + compiler_ticks | |
289 + interpreter_ticks | |
290 + unknown_ticks ); | |
291 } | |
292 static elapsedTimer timer; | |
293 | |
294 // Counts of each of the byte codes | |
295 static int* bytecode_ticks; | |
296 static int* bytecode_ticks_stub; | |
297 static void print_byte_code_statistics(); | |
298 | |
299 // the ticks below are for continuous profiling (to adjust recompilation, etc.) | |
300 static int all_ticks; // total count of ticks received so far | |
301 static int all_int_ticks; // ticks in interpreter | |
302 static int all_comp_ticks; // ticks in compiled code (+ native) | |
303 static bool full_profile_flag; // collecting full profile? | |
304 | |
305 // to accumulate thread-specific data | |
306 // if we aren't profiling individual threads. | |
307 static ThreadProfiler* thread_profiler; | |
308 static ThreadProfiler* vm_thread_profiler; | |
309 | |
310 static void allocate_table(); | |
311 | |
312 // The task that periodically interrupts things. | |
313 friend class FlatProfilerTask; | |
314 static FlatProfilerTask* task; | |
315 static void record_vm_operation(); | |
316 static void record_vm_tick(); | |
317 static void record_thread_ticks(); | |
318 | |
319 // For interval analysis | |
320 private: | |
321 static int interval_ticks_previous; // delivered_ticks from the last interval | |
322 static void interval_record_thread(ThreadProfiler* tp); // extract ticks from ThreadProfiler. | |
323 static void interval_print(); // print interval data. | |
324 static void interval_reset(); // reset interval data. | |
325 enum {interval_print_size = 10}; | |
326 static IntervalData* interval_data; | |
327 #endif // FPROF_KERNEL | |
328 }; | |
1972 | 329 |
330 #endif // SHARE_VM_RUNTIME_FPROFILER_HPP |