Mercurial > hg > graal-jvmci-8
annotate src/share/vm/runtime/fprofiler.cpp @ 20568:46140919bf90
8047934: Adding new API for unlocking diagnostic argument.
Summary: New API for unlocking diagnostic argument.
Reviewed-by: dholmes, ccheung, egahlin, iklam, bdelsart
author | jiangli |
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date | Tue, 14 Oct 2014 12:09:33 -0400 |
parents | ce8f6bb717c9 |
children |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2014, 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 #include "precompiled.hpp" |
26 #include "classfile/classLoader.hpp" | |
27 #include "code/vtableStubs.hpp" | |
28 #include "gc_interface/collectedHeap.inline.hpp" | |
29 #include "interpreter/interpreter.hpp" | |
30 #include "memory/allocation.inline.hpp" | |
31 #include "memory/universe.inline.hpp" | |
32 #include "oops/oop.inline.hpp" | |
33 #include "oops/oop.inline2.hpp" | |
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34 #include "oops/symbol.hpp" |
1972 | 35 #include "runtime/deoptimization.hpp" |
36 #include "runtime/fprofiler.hpp" | |
37 #include "runtime/mutexLocker.hpp" | |
38 #include "runtime/stubCodeGenerator.hpp" | |
39 #include "runtime/stubRoutines.hpp" | |
40 #include "runtime/task.hpp" | |
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41 #include "runtime/thread.inline.hpp" |
1972 | 42 #include "runtime/vframe.hpp" |
43 #include "utilities/macros.hpp" | |
0 | 44 |
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45 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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46 |
0 | 47 // Static fields of FlatProfiler |
48 int FlatProfiler::received_gc_ticks = 0; | |
49 int FlatProfiler::vm_operation_ticks = 0; | |
50 int FlatProfiler::threads_lock_ticks = 0; | |
51 int FlatProfiler::class_loader_ticks = 0; | |
52 int FlatProfiler::extra_ticks = 0; | |
53 int FlatProfiler::blocked_ticks = 0; | |
54 int FlatProfiler::deopt_ticks = 0; | |
55 int FlatProfiler::unknown_ticks = 0; | |
56 int FlatProfiler::interpreter_ticks = 0; | |
57 int FlatProfiler::compiler_ticks = 0; | |
58 int FlatProfiler::received_ticks = 0; | |
59 int FlatProfiler::delivered_ticks = 0; | |
60 int* FlatProfiler::bytecode_ticks = NULL; | |
61 int* FlatProfiler::bytecode_ticks_stub = NULL; | |
62 int FlatProfiler::all_int_ticks = 0; | |
63 int FlatProfiler::all_comp_ticks = 0; | |
64 int FlatProfiler::all_ticks = 0; | |
65 bool FlatProfiler::full_profile_flag = false; | |
66 ThreadProfiler* FlatProfiler::thread_profiler = NULL; | |
67 ThreadProfiler* FlatProfiler::vm_thread_profiler = NULL; | |
68 FlatProfilerTask* FlatProfiler::task = NULL; | |
69 elapsedTimer FlatProfiler::timer; | |
70 int FlatProfiler::interval_ticks_previous = 0; | |
71 IntervalData* FlatProfiler::interval_data = NULL; | |
72 | |
73 ThreadProfiler::ThreadProfiler() { | |
74 // Space for the ProfilerNodes | |
75 const int area_size = 1 * ProfilerNodeSize * 1024; | |
6197 | 76 area_bottom = AllocateHeap(area_size, mtInternal); |
0 | 77 area_top = area_bottom; |
78 area_limit = area_bottom + area_size; | |
79 | |
80 // ProfilerNode pointer table | |
6197 | 81 table = NEW_C_HEAP_ARRAY(ProfilerNode*, table_size, mtInternal); |
0 | 82 initialize(); |
83 engaged = false; | |
84 } | |
85 | |
86 ThreadProfiler::~ThreadProfiler() { | |
87 FreeHeap(area_bottom); | |
88 area_bottom = NULL; | |
89 area_top = NULL; | |
90 area_limit = NULL; | |
91 FreeHeap(table); | |
92 table = NULL; | |
93 } | |
94 | |
95 // Statics for ThreadProfiler | |
96 int ThreadProfiler::table_size = 1024; | |
97 | |
98 int ThreadProfiler::entry(int value) { | |
99 value = (value > 0) ? value : -value; | |
100 return value % table_size; | |
101 } | |
102 | |
103 ThreadProfilerMark::ThreadProfilerMark(ThreadProfilerMark::Region r) { | |
104 _r = r; | |
105 _pp = NULL; | |
106 assert(((r > ThreadProfilerMark::noRegion) && (r < ThreadProfilerMark::maxRegion)), "ThreadProfilerMark::Region out of bounds"); | |
107 Thread* tp = Thread::current(); | |
108 if (tp != NULL && tp->is_Java_thread()) { | |
109 JavaThread* jtp = (JavaThread*) tp; | |
110 ThreadProfiler* pp = jtp->get_thread_profiler(); | |
111 _pp = pp; | |
112 if (pp != NULL) { | |
113 pp->region_flag[r] = true; | |
114 } | |
115 } | |
116 } | |
117 | |
118 ThreadProfilerMark::~ThreadProfilerMark() { | |
119 if (_pp != NULL) { | |
120 _pp->region_flag[_r] = false; | |
121 } | |
122 _pp = NULL; | |
123 } | |
124 | |
125 // Random other statics | |
126 static const int col1 = 2; // position of output column 1 | |
127 static const int col2 = 11; // position of output column 2 | |
128 static const int col3 = 25; // position of output column 3 | |
129 static const int col4 = 55; // position of output column 4 | |
130 | |
131 | |
132 // Used for detailed profiling of nmethods. | |
133 class PCRecorder : AllStatic { | |
134 private: | |
135 static int* counters; | |
136 static address base; | |
137 enum { | |
138 bucket_size = 16 | |
139 }; | |
140 static int index_for(address pc) { return (pc - base)/bucket_size; } | |
141 static address pc_for(int index) { return base + (index * bucket_size); } | |
142 static int size() { | |
143 return ((int)CodeCache::max_capacity())/bucket_size * BytesPerWord; | |
144 } | |
145 public: | |
146 static address bucket_start_for(address pc) { | |
147 if (counters == NULL) return NULL; | |
148 return pc_for(index_for(pc)); | |
149 } | |
150 static int bucket_count_for(address pc) { return counters[index_for(pc)]; } | |
151 static void init(); | |
152 static void record(address pc); | |
153 static void print(); | |
154 static void print_blobs(CodeBlob* cb); | |
155 }; | |
156 | |
157 int* PCRecorder::counters = NULL; | |
158 address PCRecorder::base = NULL; | |
159 | |
160 void PCRecorder::init() { | |
161 MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
162 int s = size(); | |
6197 | 163 counters = NEW_C_HEAP_ARRAY(int, s, mtInternal); |
0 | 164 for (int index = 0; index < s; index++) { |
165 counters[index] = 0; | |
166 } | |
167 base = CodeCache::first_address(); | |
168 } | |
169 | |
170 void PCRecorder::record(address pc) { | |
171 if (counters == NULL) return; | |
172 assert(CodeCache::contains(pc), "must be in CodeCache"); | |
173 counters[index_for(pc)]++; | |
174 } | |
175 | |
176 | |
177 address FlatProfiler::bucket_start_for(address pc) { | |
178 return PCRecorder::bucket_start_for(pc); | |
179 } | |
180 | |
181 int FlatProfiler::bucket_count_for(address pc) { | |
182 return PCRecorder::bucket_count_for(pc); | |
183 } | |
184 | |
185 void PCRecorder::print() { | |
186 if (counters == NULL) return; | |
187 | |
188 tty->cr(); | |
189 tty->print_cr("Printing compiled methods with PC buckets having more than %d ticks", ProfilerPCTickThreshold); | |
190 tty->print_cr("==================================================================="); | |
191 tty->cr(); | |
192 | |
193 GrowableArray<CodeBlob*>* candidates = new GrowableArray<CodeBlob*>(20); | |
194 | |
195 | |
196 int s; | |
197 { | |
198 MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
199 s = size(); | |
200 } | |
201 | |
202 for (int index = 0; index < s; index++) { | |
203 int count = counters[index]; | |
204 if (count > ProfilerPCTickThreshold) { | |
205 address pc = pc_for(index); | |
206 CodeBlob* cb = CodeCache::find_blob_unsafe(pc); | |
207 if (cb != NULL && candidates->find(cb) < 0) { | |
208 candidates->push(cb); | |
209 } | |
210 } | |
211 } | |
212 for (int i = 0; i < candidates->length(); i++) { | |
213 print_blobs(candidates->at(i)); | |
214 } | |
215 } | |
216 | |
217 void PCRecorder::print_blobs(CodeBlob* cb) { | |
218 if (cb != NULL) { | |
219 cb->print(); | |
220 if (cb->is_nmethod()) { | |
221 ((nmethod*)cb)->print_code(); | |
222 } | |
223 tty->cr(); | |
224 } else { | |
225 tty->print_cr("stub code"); | |
226 } | |
227 } | |
228 | |
229 class tick_counter { // holds tick info for one node | |
230 public: | |
231 int ticks_in_code; | |
232 int ticks_in_native; | |
233 | |
234 tick_counter() { ticks_in_code = ticks_in_native = 0; } | |
235 tick_counter(int code, int native) { ticks_in_code = code; ticks_in_native = native; } | |
236 | |
237 int total() const { | |
238 return (ticks_in_code + ticks_in_native); | |
239 } | |
240 | |
241 void add(tick_counter* a) { | |
242 ticks_in_code += a->ticks_in_code; | |
243 ticks_in_native += a->ticks_in_native; | |
244 } | |
245 | |
246 void update(TickPosition where) { | |
247 switch(where) { | |
248 case tp_code: ticks_in_code++; break; | |
249 case tp_native: ticks_in_native++; break; | |
250 } | |
251 } | |
252 | |
253 void print_code(outputStream* st, int total_ticks) { | |
254 st->print("%5.1f%% %5d ", total() * 100.0 / total_ticks, ticks_in_code); | |
255 } | |
256 | |
257 void print_native(outputStream* st) { | |
258 st->print(" + %5d ", ticks_in_native); | |
259 } | |
260 }; | |
261 | |
262 class ProfilerNode { | |
263 private: | |
264 ProfilerNode* _next; | |
265 public: | |
266 tick_counter ticks; | |
267 | |
268 public: | |
269 | |
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270 void* operator new(size_t size, ThreadProfiler* tp) throw(); |
0 | 271 void operator delete(void* p); |
272 | |
273 ProfilerNode() { | |
274 _next = NULL; | |
275 } | |
276 | |
277 virtual ~ProfilerNode() { | |
278 if (_next) | |
279 delete _next; | |
280 } | |
281 | |
282 void set_next(ProfilerNode* n) { _next = n; } | |
283 ProfilerNode* next() { return _next; } | |
284 | |
285 void update(TickPosition where) { ticks.update(where);} | |
286 int total_ticks() { return ticks.total(); } | |
287 | |
288 virtual bool is_interpreted() const { return false; } | |
289 virtual bool is_compiled() const { return false; } | |
290 virtual bool is_stub() const { return false; } | |
291 virtual bool is_runtime_stub() const{ return false; } | |
292 virtual void oops_do(OopClosure* f) = 0; | |
293 | |
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294 virtual bool interpreted_match(Method* m) const { return false; } |
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295 virtual bool compiled_match(Method* m ) const { return false; } |
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296 virtual bool stub_match(Method* m, const char* name) const { return false; } |
0 | 297 virtual bool adapter_match() const { return false; } |
298 virtual bool runtimeStub_match(const CodeBlob* stub, const char* name) const { return false; } | |
299 virtual bool unknown_compiled_match(const CodeBlob* cb) const { return false; } | |
300 | |
301 static void print_title(outputStream* st) { | |
302 st->print(" + native"); | |
303 st->fill_to(col3); | |
304 st->print("Method"); | |
305 st->fill_to(col4); | |
306 st->cr(); | |
307 } | |
308 | |
309 static void print_total(outputStream* st, tick_counter* t, int total, const char* msg) { | |
310 t->print_code(st, total); | |
311 st->fill_to(col2); | |
312 t->print_native(st); | |
313 st->fill_to(col3); | |
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314 st->print("%s", msg); |
0 | 315 st->cr(); |
316 } | |
317 | |
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318 virtual Method* method() = 0; |
0 | 319 |
320 virtual void print_method_on(outputStream* st) { | |
321 int limit; | |
322 int i; | |
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323 Method* m = method(); |
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324 Symbol* k = m->klass_name(); |
0 | 325 // Print the class name with dots instead of slashes |
326 limit = k->utf8_length(); | |
327 for (i = 0 ; i < limit ; i += 1) { | |
328 char c = (char) k->byte_at(i); | |
329 if (c == '/') { | |
330 c = '.'; | |
331 } | |
332 st->print("%c", c); | |
333 } | |
334 if (limit > 0) { | |
335 st->print("."); | |
336 } | |
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337 Symbol* n = m->name(); |
0 | 338 limit = n->utf8_length(); |
339 for (i = 0 ; i < limit ; i += 1) { | |
340 char c = (char) n->byte_at(i); | |
341 st->print("%c", c); | |
342 } | |
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343 if (Verbose || WizardMode) { |
0 | 344 // Disambiguate overloaded methods |
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345 Symbol* sig = m->signature(); |
0 | 346 sig->print_symbol_on(st); |
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347 } else if (MethodHandles::is_signature_polymorphic(m->intrinsic_id())) |
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348 // compare with Method::print_short_name |
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349 MethodHandles::print_as_basic_type_signature_on(st, m->signature(), true); |
0 | 350 } |
351 | |
352 virtual void print(outputStream* st, int total_ticks) { | |
353 ticks.print_code(st, total_ticks); | |
354 st->fill_to(col2); | |
355 ticks.print_native(st); | |
356 st->fill_to(col3); | |
357 print_method_on(st); | |
358 st->cr(); | |
359 } | |
360 | |
361 // for hashing into the table | |
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362 static int hash(Method* method) { |
0 | 363 // The point here is to try to make something fairly unique |
364 // out of the fields we can read without grabbing any locks | |
365 // since the method may be locked when we need the hash. | |
366 return ( | |
367 method->code_size() ^ | |
368 method->max_stack() ^ | |
369 method->max_locals() ^ | |
370 method->size_of_parameters()); | |
371 } | |
372 | |
373 // for sorting | |
374 static int compare(ProfilerNode** a, ProfilerNode** b) { | |
375 return (*b)->total_ticks() - (*a)->total_ticks(); | |
376 } | |
377 }; | |
378 | |
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379 void* ProfilerNode::operator new(size_t size, ThreadProfiler* tp) throw() { |
0 | 380 void* result = (void*) tp->area_top; |
381 tp->area_top += size; | |
382 | |
383 if (tp->area_top > tp->area_limit) { | |
384 fatal("flat profiler buffer overflow"); | |
385 } | |
386 return result; | |
387 } | |
388 | |
389 void ProfilerNode::operator delete(void* p){ | |
390 } | |
391 | |
392 class interpretedNode : public ProfilerNode { | |
393 private: | |
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394 Method* _method; |
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395 oop _class_loader; // needed to keep metadata for the method alive |
0 | 396 public: |
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397 interpretedNode(Method* method, TickPosition where) : ProfilerNode() { |
0 | 398 _method = method; |
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399 _class_loader = method->method_holder()->class_loader(); |
0 | 400 update(where); |
401 } | |
402 | |
403 bool is_interpreted() const { return true; } | |
404 | |
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405 bool interpreted_match(Method* m) const { |
0 | 406 return _method == m; |
407 } | |
408 | |
409 void oops_do(OopClosure* f) { | |
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410 f->do_oop(&_class_loader); |
0 | 411 } |
412 | |
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413 Method* method() { return _method; } |
0 | 414 |
415 static void print_title(outputStream* st) { | |
416 st->fill_to(col1); | |
417 st->print("%11s", "Interpreted"); | |
418 ProfilerNode::print_title(st); | |
419 } | |
420 | |
421 void print(outputStream* st, int total_ticks) { | |
422 ProfilerNode::print(st, total_ticks); | |
423 } | |
424 | |
425 void print_method_on(outputStream* st) { | |
426 ProfilerNode::print_method_on(st); | |
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427 MethodCounters* mcs = method()->method_counters(); |
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428 if (Verbose && mcs != NULL) mcs->invocation_counter()->print_short(); |
0 | 429 } |
430 }; | |
431 | |
432 class compiledNode : public ProfilerNode { | |
433 private: | |
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434 Method* _method; |
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435 oop _class_loader; // needed to keep metadata for the method alive |
0 | 436 public: |
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437 compiledNode(Method* method, TickPosition where) : ProfilerNode() { |
0 | 438 _method = method; |
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439 _class_loader = method->method_holder()->class_loader(); |
0 | 440 update(where); |
441 } | |
442 bool is_compiled() const { return true; } | |
443 | |
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444 bool compiled_match(Method* m) const { |
0 | 445 return _method == m; |
446 } | |
447 | |
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448 Method* method() { return _method; } |
0 | 449 |
450 void oops_do(OopClosure* f) { | |
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451 f->do_oop(&_class_loader); |
0 | 452 } |
453 | |
454 static void print_title(outputStream* st) { | |
455 st->fill_to(col1); | |
456 st->print("%11s", "Compiled"); | |
457 ProfilerNode::print_title(st); | |
458 } | |
459 | |
460 void print(outputStream* st, int total_ticks) { | |
461 ProfilerNode::print(st, total_ticks); | |
462 } | |
463 | |
464 void print_method_on(outputStream* st) { | |
465 ProfilerNode::print_method_on(st); | |
466 } | |
467 }; | |
468 | |
469 class stubNode : public ProfilerNode { | |
470 private: | |
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471 Method* _method; |
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472 oop _class_loader; // needed to keep metadata for the method alive |
0 | 473 const char* _symbol; // The name of the nearest VM symbol (for +ProfileVM). Points to a unique string |
474 public: | |
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475 stubNode(Method* method, const char* name, TickPosition where) : ProfilerNode() { |
0 | 476 _method = method; |
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477 _class_loader = method->method_holder()->class_loader(); |
0 | 478 _symbol = name; |
479 update(where); | |
480 } | |
481 | |
482 bool is_stub() const { return true; } | |
483 | |
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484 void oops_do(OopClosure* f) { |
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485 f->do_oop(&_class_loader); |
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486 } |
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487 |
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488 bool stub_match(Method* m, const char* name) const { |
0 | 489 return (_method == m) && (_symbol == name); |
490 } | |
491 | |
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492 Method* method() { return _method; } |
0 | 493 |
494 static void print_title(outputStream* st) { | |
495 st->fill_to(col1); | |
496 st->print("%11s", "Stub"); | |
497 ProfilerNode::print_title(st); | |
498 } | |
499 | |
500 void print(outputStream* st, int total_ticks) { | |
501 ProfilerNode::print(st, total_ticks); | |
502 } | |
503 | |
504 void print_method_on(outputStream* st) { | |
505 ProfilerNode::print_method_on(st); | |
506 print_symbol_on(st); | |
507 } | |
508 | |
509 void print_symbol_on(outputStream* st) { | |
510 if(_symbol) { | |
511 st->print(" (%s)", _symbol); | |
512 } | |
513 } | |
514 }; | |
515 | |
516 class adapterNode : public ProfilerNode { | |
517 public: | |
518 adapterNode(TickPosition where) : ProfilerNode() { | |
519 update(where); | |
520 } | |
521 bool is_compiled() const { return true; } | |
522 | |
523 bool adapter_match() const { return true; } | |
524 | |
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525 Method* method() { return NULL; } |
0 | 526 |
527 void oops_do(OopClosure* f) { | |
528 ; | |
529 } | |
530 | |
531 void print(outputStream* st, int total_ticks) { | |
532 ProfilerNode::print(st, total_ticks); | |
533 } | |
534 | |
535 void print_method_on(outputStream* st) { | |
536 st->print("%s", "adapters"); | |
537 } | |
538 }; | |
539 | |
540 class runtimeStubNode : public ProfilerNode { | |
541 private: | |
542 const CodeBlob* _stub; | |
543 const char* _symbol; // The name of the nearest VM symbol when ProfileVM is on. Points to a unique string. | |
544 public: | |
545 runtimeStubNode(const CodeBlob* stub, const char* name, TickPosition where) : ProfilerNode(), _stub(stub), _symbol(name) { | |
546 assert(stub->is_runtime_stub(), "wrong code blob"); | |
547 update(where); | |
548 } | |
549 | |
550 bool is_runtime_stub() const { return true; } | |
551 | |
552 bool runtimeStub_match(const CodeBlob* stub, const char* name) const { | |
553 assert(stub->is_runtime_stub(), "wrong code blob"); | |
554 return ((RuntimeStub*)_stub)->entry_point() == ((RuntimeStub*)stub)->entry_point() && | |
555 (_symbol == name); | |
556 } | |
557 | |
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558 Method* method() { return NULL; } |
0 | 559 |
560 static void print_title(outputStream* st) { | |
561 st->fill_to(col1); | |
562 st->print("%11s", "Runtime stub"); | |
563 ProfilerNode::print_title(st); | |
564 } | |
565 | |
566 void oops_do(OopClosure* f) { | |
567 ; | |
568 } | |
569 | |
570 void print(outputStream* st, int total_ticks) { | |
571 ProfilerNode::print(st, total_ticks); | |
572 } | |
573 | |
574 void print_method_on(outputStream* st) { | |
575 st->print("%s", ((RuntimeStub*)_stub)->name()); | |
576 print_symbol_on(st); | |
577 } | |
578 | |
579 void print_symbol_on(outputStream* st) { | |
580 if(_symbol) { | |
581 st->print(" (%s)", _symbol); | |
582 } | |
583 } | |
584 }; | |
585 | |
586 | |
587 class unknown_compiledNode : public ProfilerNode { | |
588 const char *_name; | |
589 public: | |
590 unknown_compiledNode(const CodeBlob* cb, TickPosition where) : ProfilerNode() { | |
591 if ( cb->is_buffer_blob() ) | |
592 _name = ((BufferBlob*)cb)->name(); | |
593 else | |
594 _name = ((SingletonBlob*)cb)->name(); | |
595 update(where); | |
596 } | |
597 bool is_compiled() const { return true; } | |
598 | |
599 bool unknown_compiled_match(const CodeBlob* cb) const { | |
600 if ( cb->is_buffer_blob() ) | |
601 return !strcmp(((BufferBlob*)cb)->name(), _name); | |
602 else | |
603 return !strcmp(((SingletonBlob*)cb)->name(), _name); | |
604 } | |
605 | |
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606 Method* method() { return NULL; } |
0 | 607 |
608 void oops_do(OopClosure* f) { | |
609 ; | |
610 } | |
611 | |
612 void print(outputStream* st, int total_ticks) { | |
613 ProfilerNode::print(st, total_ticks); | |
614 } | |
615 | |
616 void print_method_on(outputStream* st) { | |
617 st->print("%s", _name); | |
618 } | |
619 }; | |
620 | |
621 class vmNode : public ProfilerNode { | |
622 private: | |
623 const char* _name; // "optional" name obtained by os means such as dll lookup | |
624 public: | |
625 vmNode(const TickPosition where) : ProfilerNode() { | |
626 _name = NULL; | |
627 update(where); | |
628 } | |
629 | |
630 vmNode(const char* name, const TickPosition where) : ProfilerNode() { | |
631 _name = name; | |
632 update(where); | |
633 } | |
634 | |
635 const char *name() const { return _name; } | |
636 bool is_compiled() const { return true; } | |
637 | |
638 bool vm_match(const char* name) const { return strcmp(name, _name) == 0; } | |
639 | |
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640 Method* method() { return NULL; } |
0 | 641 |
642 static int hash(const char* name){ | |
643 // Compute a simple hash | |
644 const char* cp = name; | |
645 int h = 0; | |
646 | |
647 if(name != NULL){ | |
648 while(*cp != '\0'){ | |
649 h = (h << 1) ^ *cp; | |
650 cp++; | |
651 } | |
652 } | |
653 return h; | |
654 } | |
655 | |
656 void oops_do(OopClosure* f) { | |
657 ; | |
658 } | |
659 | |
660 void print(outputStream* st, int total_ticks) { | |
661 ProfilerNode::print(st, total_ticks); | |
662 } | |
663 | |
664 void print_method_on(outputStream* st) { | |
665 if(_name==NULL){ | |
666 st->print("%s", "unknown code"); | |
667 } | |
668 else { | |
669 st->print("%s", _name); | |
670 } | |
671 } | |
672 }; | |
673 | |
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674 void ThreadProfiler::interpreted_update(Method* method, TickPosition where) { |
0 | 675 int index = entry(ProfilerNode::hash(method)); |
676 if (!table[index]) { | |
677 table[index] = new (this) interpretedNode(method, where); | |
678 } else { | |
679 ProfilerNode* prev = table[index]; | |
680 for(ProfilerNode* node = prev; node; node = node->next()) { | |
681 if (node->interpreted_match(method)) { | |
682 node->update(where); | |
683 return; | |
684 } | |
685 prev = node; | |
686 } | |
687 prev->set_next(new (this) interpretedNode(method, where)); | |
688 } | |
689 } | |
690 | |
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691 void ThreadProfiler::compiled_update(Method* method, TickPosition where) { |
0 | 692 int index = entry(ProfilerNode::hash(method)); |
693 if (!table[index]) { | |
694 table[index] = new (this) compiledNode(method, where); | |
695 } else { | |
696 ProfilerNode* prev = table[index]; | |
697 for(ProfilerNode* node = prev; node; node = node->next()) { | |
698 if (node->compiled_match(method)) { | |
699 node->update(where); | |
700 return; | |
701 } | |
702 prev = node; | |
703 } | |
704 prev->set_next(new (this) compiledNode(method, where)); | |
705 } | |
706 } | |
707 | |
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708 void ThreadProfiler::stub_update(Method* method, const char* name, TickPosition where) { |
0 | 709 int index = entry(ProfilerNode::hash(method)); |
710 if (!table[index]) { | |
711 table[index] = new (this) stubNode(method, name, where); | |
712 } else { | |
713 ProfilerNode* prev = table[index]; | |
714 for(ProfilerNode* node = prev; node; node = node->next()) { | |
715 if (node->stub_match(method, name)) { | |
716 node->update(where); | |
717 return; | |
718 } | |
719 prev = node; | |
720 } | |
721 prev->set_next(new (this) stubNode(method, name, where)); | |
722 } | |
723 } | |
724 | |
725 void ThreadProfiler::adapter_update(TickPosition where) { | |
726 int index = 0; | |
727 if (!table[index]) { | |
728 table[index] = new (this) adapterNode(where); | |
729 } else { | |
730 ProfilerNode* prev = table[index]; | |
731 for(ProfilerNode* node = prev; node; node = node->next()) { | |
732 if (node->adapter_match()) { | |
733 node->update(where); | |
734 return; | |
735 } | |
736 prev = node; | |
737 } | |
738 prev->set_next(new (this) adapterNode(where)); | |
739 } | |
740 } | |
741 | |
742 void ThreadProfiler::runtime_stub_update(const CodeBlob* stub, const char* name, TickPosition where) { | |
743 int index = 0; | |
744 if (!table[index]) { | |
745 table[index] = new (this) runtimeStubNode(stub, name, where); | |
746 } else { | |
747 ProfilerNode* prev = table[index]; | |
748 for(ProfilerNode* node = prev; node; node = node->next()) { | |
749 if (node->runtimeStub_match(stub, name)) { | |
750 node->update(where); | |
751 return; | |
752 } | |
753 prev = node; | |
754 } | |
755 prev->set_next(new (this) runtimeStubNode(stub, name, where)); | |
756 } | |
757 } | |
758 | |
759 | |
760 void ThreadProfiler::unknown_compiled_update(const CodeBlob* cb, TickPosition where) { | |
761 int index = 0; | |
762 if (!table[index]) { | |
763 table[index] = new (this) unknown_compiledNode(cb, where); | |
764 } else { | |
765 ProfilerNode* prev = table[index]; | |
766 for(ProfilerNode* node = prev; node; node = node->next()) { | |
767 if (node->unknown_compiled_match(cb)) { | |
768 node->update(where); | |
769 return; | |
770 } | |
771 prev = node; | |
772 } | |
773 prev->set_next(new (this) unknown_compiledNode(cb, where)); | |
774 } | |
775 } | |
776 | |
777 void ThreadProfiler::vm_update(TickPosition where) { | |
778 vm_update(NULL, where); | |
779 } | |
780 | |
781 void ThreadProfiler::vm_update(const char* name, TickPosition where) { | |
782 int index = entry(vmNode::hash(name)); | |
783 assert(index >= 0, "Must be positive"); | |
784 // Note that we call strdup below since the symbol may be resource allocated | |
785 if (!table[index]) { | |
786 table[index] = new (this) vmNode(os::strdup(name), where); | |
787 } else { | |
788 ProfilerNode* prev = table[index]; | |
789 for(ProfilerNode* node = prev; node; node = node->next()) { | |
790 if (((vmNode *)node)->vm_match(name)) { | |
791 node->update(where); | |
792 return; | |
793 } | |
794 prev = node; | |
795 } | |
796 prev->set_next(new (this) vmNode(os::strdup(name), where)); | |
797 } | |
798 } | |
799 | |
800 | |
801 class FlatProfilerTask : public PeriodicTask { | |
802 public: | |
803 FlatProfilerTask(int interval_time) : PeriodicTask(interval_time) {} | |
804 void task(); | |
805 }; | |
806 | |
807 void FlatProfiler::record_vm_operation() { | |
808 if (Universe::heap()->is_gc_active()) { | |
809 FlatProfiler::received_gc_ticks += 1; | |
810 return; | |
811 } | |
812 | |
813 if (DeoptimizationMarker::is_active()) { | |
814 FlatProfiler::deopt_ticks += 1; | |
815 return; | |
816 } | |
817 | |
818 FlatProfiler::vm_operation_ticks += 1; | |
819 } | |
820 | |
821 void FlatProfiler::record_vm_tick() { | |
822 // Profile the VM Thread itself if needed | |
823 // This is done without getting the Threads_lock and we can go deep | |
824 // inside Safepoint, etc. | |
825 if( ProfileVM ) { | |
826 ResourceMark rm; | |
827 ExtendedPC epc; | |
828 const char *name = NULL; | |
829 char buf[256]; | |
830 buf[0] = '\0'; | |
831 | |
832 vm_thread_profiler->inc_thread_ticks(); | |
833 | |
834 // Get a snapshot of a current VMThread pc (and leave it running!) | |
835 // The call may fail if, for instance the VM thread is interrupted while | |
836 // holding the Interrupt_lock or for other reasons. | |
837 epc = os::get_thread_pc(VMThread::vm_thread()); | |
838 if(epc.pc() != NULL) { | |
839 if (os::dll_address_to_function_name(epc.pc(), buf, sizeof(buf), NULL)) { | |
840 name = buf; | |
841 } | |
842 } | |
843 if (name != NULL) { | |
844 vm_thread_profiler->vm_update(name, tp_native); | |
845 } | |
846 } | |
847 } | |
848 | |
849 void FlatProfiler::record_thread_ticks() { | |
850 | |
851 int maxthreads, suspendedthreadcount; | |
852 JavaThread** threadsList; | |
853 bool interval_expired = false; | |
854 | |
855 if (ProfileIntervals && | |
856 (FlatProfiler::received_ticks >= interval_ticks_previous + ProfileIntervalsTicks)) { | |
857 interval_expired = true; | |
858 interval_ticks_previous = FlatProfiler::received_ticks; | |
859 } | |
860 | |
861 // Try not to wait for the Threads_lock | |
862 if (Threads_lock->try_lock()) { | |
863 { // Threads_lock scope | |
864 maxthreads = Threads::number_of_threads(); | |
6197 | 865 threadsList = NEW_C_HEAP_ARRAY(JavaThread *, maxthreads, mtInternal); |
0 | 866 suspendedthreadcount = 0; |
867 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) { | |
868 if (tp->is_Compiler_thread()) { | |
869 // Only record ticks for active compiler threads | |
870 CompilerThread* cthread = (CompilerThread*)tp; | |
871 if (cthread->task() != NULL) { | |
872 // The compiler is active. If we need to access any of the fields | |
873 // of the compiler task we should suspend the CompilerThread first. | |
874 FlatProfiler::compiler_ticks += 1; | |
875 continue; | |
876 } | |
877 } | |
878 | |
879 // First externally suspend all threads by marking each for | |
880 // external suspension - so it will stop at its next transition | |
881 // Then do a safepoint | |
882 ThreadProfiler* pp = tp->get_thread_profiler(); | |
883 if (pp != NULL && pp->engaged) { | |
884 MutexLockerEx ml(tp->SR_lock(), Mutex::_no_safepoint_check_flag); | |
885 if (!tp->is_external_suspend() && !tp->is_exiting()) { | |
886 tp->set_external_suspend(); | |
887 threadsList[suspendedthreadcount++] = tp; | |
888 } | |
889 } | |
890 } | |
891 Threads_lock->unlock(); | |
892 } | |
893 // Suspend each thread. This call should just return | |
894 // for any threads that have already self-suspended | |
895 // Net result should be one safepoint | |
896 for (int j = 0; j < suspendedthreadcount; j++) { | |
897 JavaThread *tp = threadsList[j]; | |
898 if (tp) { | |
899 tp->java_suspend(); | |
900 } | |
901 } | |
902 | |
903 // We are responsible for resuming any thread on this list | |
904 for (int i = 0; i < suspendedthreadcount; i++) { | |
905 JavaThread *tp = threadsList[i]; | |
906 if (tp) { | |
907 ThreadProfiler* pp = tp->get_thread_profiler(); | |
908 if (pp != NULL && pp->engaged) { | |
909 HandleMark hm; | |
910 FlatProfiler::delivered_ticks += 1; | |
911 if (interval_expired) { | |
912 FlatProfiler::interval_record_thread(pp); | |
913 } | |
914 // This is the place where we check to see if a user thread is | |
915 // blocked waiting for compilation. | |
916 if (tp->blocked_on_compilation()) { | |
917 pp->compiler_ticks += 1; | |
918 pp->interval_data_ref()->inc_compiling(); | |
919 } else { | |
920 pp->record_tick(tp); | |
921 } | |
922 } | |
923 MutexLocker ml(Threads_lock); | |
924 tp->java_resume(); | |
925 } | |
926 } | |
927 if (interval_expired) { | |
928 FlatProfiler::interval_print(); | |
929 FlatProfiler::interval_reset(); | |
930 } | |
12148 | 931 |
932 FREE_C_HEAP_ARRAY(JavaThread *, threadsList, mtInternal); | |
0 | 933 } else { |
934 // Couldn't get the threads lock, just record that rather than blocking | |
935 FlatProfiler::threads_lock_ticks += 1; | |
936 } | |
937 | |
938 } | |
939 | |
940 void FlatProfilerTask::task() { | |
941 FlatProfiler::received_ticks += 1; | |
942 | |
943 if (ProfileVM) { | |
944 FlatProfiler::record_vm_tick(); | |
945 } | |
946 | |
947 VM_Operation* op = VMThread::vm_operation(); | |
948 if (op != NULL) { | |
949 FlatProfiler::record_vm_operation(); | |
950 if (SafepointSynchronize::is_at_safepoint()) { | |
951 return; | |
952 } | |
953 } | |
954 FlatProfiler::record_thread_ticks(); | |
955 } | |
956 | |
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957 void ThreadProfiler::record_interpreted_tick(JavaThread* thread, frame fr, TickPosition where, int* ticks) { |
0 | 958 FlatProfiler::all_int_ticks++; |
959 if (!FlatProfiler::full_profile()) { | |
960 return; | |
961 } | |
962 | |
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963 if (!fr.is_interpreted_frame_valid(thread)) { |
0 | 964 // tick came at a bad time |
965 interpreter_ticks += 1; | |
966 FlatProfiler::interpreter_ticks += 1; | |
967 return; | |
968 } | |
969 | |
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970 // The frame has been fully validated so we can trust the method and bci |
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972 Method* method = *fr.interpreter_frame_method_addr(); |
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973 |
0 | 974 interpreted_update(method, where); |
975 | |
976 // update byte code table | |
977 InterpreterCodelet* desc = Interpreter::codelet_containing(fr.pc()); | |
978 if (desc != NULL && desc->bytecode() >= 0) { | |
979 ticks[desc->bytecode()]++; | |
980 } | |
981 } | |
982 | |
983 void ThreadProfiler::record_compiled_tick(JavaThread* thread, frame fr, TickPosition where) { | |
984 const char *name = NULL; | |
985 TickPosition localwhere = where; | |
986 | |
987 FlatProfiler::all_comp_ticks++; | |
988 if (!FlatProfiler::full_profile()) return; | |
989 | |
990 CodeBlob* cb = fr.cb(); | |
991 | |
992 // For runtime stubs, record as native rather than as compiled | |
993 if (cb->is_runtime_stub()) { | |
994 RegisterMap map(thread, false); | |
995 fr = fr.sender(&map); | |
996 cb = fr.cb(); | |
997 localwhere = tp_native; | |
998 } | |
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999 Method* method = (cb->is_nmethod()) ? ((nmethod *)cb)->method() : |
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1000 (Method*)NULL; |
0 | 1001 |
1002 if (method == NULL) { | |
1003 if (cb->is_runtime_stub()) | |
1004 runtime_stub_update(cb, name, localwhere); | |
1005 else | |
1006 unknown_compiled_update(cb, localwhere); | |
1007 } | |
1008 else { | |
1009 if (method->is_native()) { | |
1010 stub_update(method, name, localwhere); | |
1011 } else { | |
1012 compiled_update(method, localwhere); | |
1013 } | |
1014 } | |
1015 } | |
1016 | |
1017 extern "C" void find(int x); | |
1018 | |
1019 | |
1020 void ThreadProfiler::record_tick_for_running_frame(JavaThread* thread, frame fr) { | |
605 | 1021 // The tick happened in real code -> non VM code |
0 | 1022 if (fr.is_interpreted_frame()) { |
1023 interval_data_ref()->inc_interpreted(); | |
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1024 record_interpreted_tick(thread, fr, tp_code, FlatProfiler::bytecode_ticks); |
0 | 1025 return; |
1026 } | |
1027 | |
1028 if (CodeCache::contains(fr.pc())) { | |
1029 interval_data_ref()->inc_compiled(); | |
1030 PCRecorder::record(fr.pc()); | |
1031 record_compiled_tick(thread, fr, tp_code); | |
1032 return; | |
1033 } | |
1034 | |
1035 if (VtableStubs::stub_containing(fr.pc()) != NULL) { | |
1036 unknown_ticks_array[ut_vtable_stubs] += 1; | |
1037 return; | |
1038 } | |
1039 | |
1040 frame caller = fr.profile_find_Java_sender_frame(thread); | |
1041 | |
1042 if (caller.sp() != NULL && caller.pc() != NULL) { | |
1043 record_tick_for_calling_frame(thread, caller); | |
1044 return; | |
1045 } | |
1046 | |
1047 unknown_ticks_array[ut_running_frame] += 1; | |
1048 FlatProfiler::unknown_ticks += 1; | |
1049 } | |
1050 | |
1051 void ThreadProfiler::record_tick_for_calling_frame(JavaThread* thread, frame fr) { | |
605 | 1052 // The tick happened in VM code |
0 | 1053 interval_data_ref()->inc_native(); |
1054 if (fr.is_interpreted_frame()) { | |
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1055 record_interpreted_tick(thread, fr, tp_native, FlatProfiler::bytecode_ticks_stub); |
0 | 1056 return; |
1057 } | |
1058 if (CodeCache::contains(fr.pc())) { | |
1059 record_compiled_tick(thread, fr, tp_native); | |
1060 return; | |
1061 } | |
1062 | |
1063 frame caller = fr.profile_find_Java_sender_frame(thread); | |
1064 | |
1065 if (caller.sp() != NULL && caller.pc() != NULL) { | |
1066 record_tick_for_calling_frame(thread, caller); | |
1067 return; | |
1068 } | |
1069 | |
1070 unknown_ticks_array[ut_calling_frame] += 1; | |
1071 FlatProfiler::unknown_ticks += 1; | |
1072 } | |
1073 | |
1074 void ThreadProfiler::record_tick(JavaThread* thread) { | |
1075 FlatProfiler::all_ticks++; | |
1076 thread_ticks += 1; | |
1077 | |
1078 // Here's another way to track global state changes. | |
1079 // When the class loader starts it marks the ThreadProfiler to tell it it is in the class loader | |
1080 // and we check that here. | |
1081 // This is more direct, and more than one thread can be in the class loader at a time, | |
1082 // but it does mean the class loader has to know about the profiler. | |
1083 if (region_flag[ThreadProfilerMark::classLoaderRegion]) { | |
1084 class_loader_ticks += 1; | |
1085 FlatProfiler::class_loader_ticks += 1; | |
1086 return; | |
1087 } else if (region_flag[ThreadProfilerMark::extraRegion]) { | |
1088 extra_ticks += 1; | |
1089 FlatProfiler::extra_ticks += 1; | |
1090 return; | |
1091 } | |
1092 // Note that the WatcherThread can now stop for safepoints | |
1093 uint32_t debug_bits = 0; | |
1094 if (!thread->wait_for_ext_suspend_completion(SuspendRetryCount, | |
1095 SuspendRetryDelay, &debug_bits)) { | |
1096 unknown_ticks_array[ut_unknown_thread_state] += 1; | |
1097 FlatProfiler::unknown_ticks += 1; | |
1098 return; | |
1099 } | |
1100 | |
1101 frame fr; | |
1102 | |
1103 switch (thread->thread_state()) { | |
1104 case _thread_in_native: | |
1105 case _thread_in_native_trans: | |
1106 case _thread_in_vm: | |
1107 case _thread_in_vm_trans: | |
1108 if (thread->profile_last_Java_frame(&fr)) { | |
1109 if (fr.is_runtime_frame()) { | |
1110 RegisterMap map(thread, false); | |
1111 fr = fr.sender(&map); | |
1112 } | |
1113 record_tick_for_calling_frame(thread, fr); | |
1114 } else { | |
1115 unknown_ticks_array[ut_no_last_Java_frame] += 1; | |
1116 FlatProfiler::unknown_ticks += 1; | |
1117 } | |
1118 break; | |
1119 // handle_special_runtime_exit_condition self-suspends threads in Java | |
1120 case _thread_in_Java: | |
1121 case _thread_in_Java_trans: | |
1122 if (thread->profile_last_Java_frame(&fr)) { | |
1123 if (fr.is_safepoint_blob_frame()) { | |
1124 RegisterMap map(thread, false); | |
1125 fr = fr.sender(&map); | |
1126 } | |
1127 record_tick_for_running_frame(thread, fr); | |
1128 } else { | |
1129 unknown_ticks_array[ut_no_last_Java_frame] += 1; | |
1130 FlatProfiler::unknown_ticks += 1; | |
1131 } | |
1132 break; | |
1133 case _thread_blocked: | |
1134 case _thread_blocked_trans: | |
1135 if (thread->osthread() && thread->osthread()->get_state() == RUNNABLE) { | |
1136 if (thread->profile_last_Java_frame(&fr)) { | |
1137 if (fr.is_safepoint_blob_frame()) { | |
1138 RegisterMap map(thread, false); | |
1139 fr = fr.sender(&map); | |
1140 record_tick_for_running_frame(thread, fr); | |
1141 } else { | |
1142 record_tick_for_calling_frame(thread, fr); | |
1143 } | |
1144 } else { | |
1145 unknown_ticks_array[ut_no_last_Java_frame] += 1; | |
1146 FlatProfiler::unknown_ticks += 1; | |
1147 } | |
1148 } else { | |
1149 blocked_ticks += 1; | |
1150 FlatProfiler::blocked_ticks += 1; | |
1151 } | |
1152 break; | |
1153 case _thread_uninitialized: | |
1154 case _thread_new: | |
1155 // not used, included for completeness | |
1156 case _thread_new_trans: | |
1157 unknown_ticks_array[ut_no_last_Java_frame] += 1; | |
1158 FlatProfiler::unknown_ticks += 1; | |
1159 break; | |
1160 default: | |
1161 unknown_ticks_array[ut_unknown_thread_state] += 1; | |
1162 FlatProfiler::unknown_ticks += 1; | |
1163 break; | |
1164 } | |
1165 return; | |
1166 } | |
1167 | |
1168 void ThreadProfiler::engage() { | |
1169 engaged = true; | |
1170 timer.start(); | |
1171 } | |
1172 | |
1173 void ThreadProfiler::disengage() { | |
1174 engaged = false; | |
1175 timer.stop(); | |
1176 } | |
1177 | |
1178 void ThreadProfiler::initialize() { | |
1179 for (int index = 0; index < table_size; index++) { | |
1180 table[index] = NULL; | |
1181 } | |
1182 thread_ticks = 0; | |
1183 blocked_ticks = 0; | |
1184 compiler_ticks = 0; | |
1185 interpreter_ticks = 0; | |
1186 for (int ut = 0; ut < ut_end; ut += 1) { | |
1187 unknown_ticks_array[ut] = 0; | |
1188 } | |
1189 region_flag[ThreadProfilerMark::classLoaderRegion] = false; | |
1190 class_loader_ticks = 0; | |
1191 region_flag[ThreadProfilerMark::extraRegion] = false; | |
1192 extra_ticks = 0; | |
1193 timer.start(); | |
1194 interval_data_ref()->reset(); | |
1195 } | |
1196 | |
1197 void ThreadProfiler::reset() { | |
1198 timer.stop(); | |
1199 if (table != NULL) { | |
1200 for (int index = 0; index < table_size; index++) { | |
1201 ProfilerNode* n = table[index]; | |
1202 if (n != NULL) { | |
1203 delete n; | |
1204 } | |
1205 } | |
1206 } | |
1207 initialize(); | |
1208 } | |
1209 | |
1210 void FlatProfiler::allocate_table() { | |
1211 { // Bytecode table | |
6197 | 1212 bytecode_ticks = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal); |
1213 bytecode_ticks_stub = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal); | |
0 | 1214 for(int index = 0; index < Bytecodes::number_of_codes; index++) { |
1215 bytecode_ticks[index] = 0; | |
1216 bytecode_ticks_stub[index] = 0; | |
1217 } | |
1218 } | |
1219 | |
1220 if (ProfilerRecordPC) PCRecorder::init(); | |
1221 | |
6197 | 1222 interval_data = NEW_C_HEAP_ARRAY(IntervalData, interval_print_size, mtInternal); |
0 | 1223 FlatProfiler::interval_reset(); |
1224 } | |
1225 | |
1226 void FlatProfiler::engage(JavaThread* mainThread, bool fullProfile) { | |
1227 full_profile_flag = fullProfile; | |
1228 if (bytecode_ticks == NULL) { | |
1229 allocate_table(); | |
1230 } | |
1231 if(ProfileVM && (vm_thread_profiler == NULL)){ | |
1232 vm_thread_profiler = new ThreadProfiler(); | |
1233 } | |
1234 if (task == NULL) { | |
1235 task = new FlatProfilerTask(WatcherThread::delay_interval); | |
1236 task->enroll(); | |
1237 } | |
1238 timer.start(); | |
1239 if (mainThread != NULL) { | |
1240 // When mainThread was created, it might not have a ThreadProfiler | |
1241 ThreadProfiler* pp = mainThread->get_thread_profiler(); | |
1242 if (pp == NULL) { | |
1243 mainThread->set_thread_profiler(new ThreadProfiler()); | |
1244 } else { | |
1245 pp->reset(); | |
1246 } | |
1247 mainThread->get_thread_profiler()->engage(); | |
1248 } | |
1249 // This is where we would assign thread_profiler | |
1250 // if we wanted only one thread_profiler for all threads. | |
1251 thread_profiler = NULL; | |
1252 } | |
1253 | |
1254 void FlatProfiler::disengage() { | |
1255 if (!task) { | |
1256 return; | |
1257 } | |
1258 timer.stop(); | |
1259 task->disenroll(); | |
1260 delete task; | |
1261 task = NULL; | |
1262 if (thread_profiler != NULL) { | |
1263 thread_profiler->disengage(); | |
1264 } else { | |
1265 MutexLocker tl(Threads_lock); | |
1266 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) { | |
1267 ThreadProfiler* pp = tp->get_thread_profiler(); | |
1268 if (pp != NULL) { | |
1269 pp->disengage(); | |
1270 } | |
1271 } | |
1272 } | |
1273 } | |
1274 | |
1275 void FlatProfiler::reset() { | |
1276 if (task) { | |
1277 disengage(); | |
1278 } | |
1279 | |
1280 class_loader_ticks = 0; | |
1281 extra_ticks = 0; | |
1282 received_gc_ticks = 0; | |
1283 vm_operation_ticks = 0; | |
1284 compiler_ticks = 0; | |
1285 deopt_ticks = 0; | |
1286 interpreter_ticks = 0; | |
1287 blocked_ticks = 0; | |
1288 unknown_ticks = 0; | |
1289 received_ticks = 0; | |
1290 delivered_ticks = 0; | |
1291 timer.stop(); | |
1292 } | |
1293 | |
1294 bool FlatProfiler::is_active() { | |
1295 return task != NULL; | |
1296 } | |
1297 | |
1298 void FlatProfiler::print_byte_code_statistics() { | |
1299 GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200); | |
1300 | |
1301 tty->print_cr(" Bytecode ticks:"); | |
1302 for (int index = 0; index < Bytecodes::number_of_codes; index++) { | |
1303 if (FlatProfiler::bytecode_ticks[index] > 0 || FlatProfiler::bytecode_ticks_stub[index] > 0) { | |
1304 tty->print_cr(" %4d %4d = %s", | |
1305 FlatProfiler::bytecode_ticks[index], | |
1306 FlatProfiler::bytecode_ticks_stub[index], | |
1307 Bytecodes::name( (Bytecodes::Code) index)); | |
1308 } | |
1309 } | |
1310 tty->cr(); | |
1311 } | |
1312 | |
1313 void print_ticks(const char* title, int ticks, int total) { | |
1314 if (ticks > 0) { | |
1315 tty->print("%5.1f%% %5d", ticks * 100.0 / total, ticks); | |
1316 tty->fill_to(col3); | |
1317 tty->print("%s", title); | |
1318 tty->cr(); | |
1319 } | |
1320 } | |
1321 | |
1322 void ThreadProfiler::print(const char* thread_name) { | |
1323 ResourceMark rm; | |
1324 MutexLocker ppl(ProfilePrint_lock); | |
1325 int index = 0; // Declared outside for loops for portability | |
1326 | |
1327 if (table == NULL) { | |
1328 return; | |
1329 } | |
1330 | |
1331 if (thread_ticks <= 0) { | |
1332 return; | |
1333 } | |
1334 | |
1335 const char* title = "too soon to tell"; | |
1336 double secs = timer.seconds(); | |
1337 | |
1338 GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200); | |
1339 for(index = 0; index < table_size; index++) { | |
1340 for(ProfilerNode* node = table[index]; node; node = node->next()) | |
1341 array->append(node); | |
1342 } | |
1343 | |
1344 array->sort(&ProfilerNode::compare); | |
1345 | |
1346 // compute total (sanity check) | |
1347 int active = | |
1348 class_loader_ticks + | |
1349 compiler_ticks + | |
1350 interpreter_ticks + | |
1351 unknown_ticks(); | |
1352 for (index = 0; index < array->length(); index++) { | |
1353 active += array->at(index)->ticks.total(); | |
1354 } | |
1355 int total = active + blocked_ticks; | |
1356 | |
1357 tty->cr(); | |
1358 tty->print_cr("Flat profile of %3.2f secs (%d total ticks): %s", secs, total, thread_name); | |
1359 if (total != thread_ticks) { | |
1360 print_ticks("Lost ticks", thread_ticks-total, thread_ticks); | |
1361 } | |
1362 tty->cr(); | |
1363 | |
1364 // print interpreted methods | |
1365 tick_counter interpreted_ticks; | |
1366 bool has_interpreted_ticks = false; | |
1367 int print_count = 0; | |
1368 for (index = 0; index < array->length(); index++) { | |
1369 ProfilerNode* n = array->at(index); | |
1370 if (n->is_interpreted()) { | |
1371 interpreted_ticks.add(&n->ticks); | |
1372 if (!has_interpreted_ticks) { | |
1373 interpretedNode::print_title(tty); | |
1374 has_interpreted_ticks = true; | |
1375 } | |
1376 if (print_count++ < ProfilerNumberOfInterpretedMethods) { | |
1377 n->print(tty, active); | |
1378 } | |
1379 } | |
1380 } | |
1381 if (has_interpreted_ticks) { | |
1382 if (print_count <= ProfilerNumberOfInterpretedMethods) { | |
1383 title = "Total interpreted"; | |
1384 } else { | |
1385 title = "Total interpreted (including elided)"; | |
1386 } | |
1387 interpretedNode::print_total(tty, &interpreted_ticks, active, title); | |
1388 tty->cr(); | |
1389 } | |
1390 | |
1391 // print compiled methods | |
1392 tick_counter compiled_ticks; | |
1393 bool has_compiled_ticks = false; | |
1394 print_count = 0; | |
1395 for (index = 0; index < array->length(); index++) { | |
1396 ProfilerNode* n = array->at(index); | |
1397 if (n->is_compiled()) { | |
1398 compiled_ticks.add(&n->ticks); | |
1399 if (!has_compiled_ticks) { | |
1400 compiledNode::print_title(tty); | |
1401 has_compiled_ticks = true; | |
1402 } | |
1403 if (print_count++ < ProfilerNumberOfCompiledMethods) { | |
1404 n->print(tty, active); | |
1405 } | |
1406 } | |
1407 } | |
1408 if (has_compiled_ticks) { | |
1409 if (print_count <= ProfilerNumberOfCompiledMethods) { | |
1410 title = "Total compiled"; | |
1411 } else { | |
1412 title = "Total compiled (including elided)"; | |
1413 } | |
1414 compiledNode::print_total(tty, &compiled_ticks, active, title); | |
1415 tty->cr(); | |
1416 } | |
1417 | |
1418 // print stub methods | |
1419 tick_counter stub_ticks; | |
1420 bool has_stub_ticks = false; | |
1421 print_count = 0; | |
1422 for (index = 0; index < array->length(); index++) { | |
1423 ProfilerNode* n = array->at(index); | |
1424 if (n->is_stub()) { | |
1425 stub_ticks.add(&n->ticks); | |
1426 if (!has_stub_ticks) { | |
1427 stubNode::print_title(tty); | |
1428 has_stub_ticks = true; | |
1429 } | |
1430 if (print_count++ < ProfilerNumberOfStubMethods) { | |
1431 n->print(tty, active); | |
1432 } | |
1433 } | |
1434 } | |
1435 if (has_stub_ticks) { | |
1436 if (print_count <= ProfilerNumberOfStubMethods) { | |
1437 title = "Total stub"; | |
1438 } else { | |
1439 title = "Total stub (including elided)"; | |
1440 } | |
1441 stubNode::print_total(tty, &stub_ticks, active, title); | |
1442 tty->cr(); | |
1443 } | |
1444 | |
1445 // print runtime stubs | |
1446 tick_counter runtime_stub_ticks; | |
1447 bool has_runtime_stub_ticks = false; | |
1448 print_count = 0; | |
1449 for (index = 0; index < array->length(); index++) { | |
1450 ProfilerNode* n = array->at(index); | |
1451 if (n->is_runtime_stub()) { | |
1452 runtime_stub_ticks.add(&n->ticks); | |
1453 if (!has_runtime_stub_ticks) { | |
1454 runtimeStubNode::print_title(tty); | |
1455 has_runtime_stub_ticks = true; | |
1456 } | |
1457 if (print_count++ < ProfilerNumberOfRuntimeStubNodes) { | |
1458 n->print(tty, active); | |
1459 } | |
1460 } | |
1461 } | |
1462 if (has_runtime_stub_ticks) { | |
1463 if (print_count <= ProfilerNumberOfRuntimeStubNodes) { | |
1464 title = "Total runtime stubs"; | |
1465 } else { | |
1466 title = "Total runtime stubs (including elided)"; | |
1467 } | |
1468 runtimeStubNode::print_total(tty, &runtime_stub_ticks, active, title); | |
1469 tty->cr(); | |
1470 } | |
1471 | |
1472 if (blocked_ticks + class_loader_ticks + interpreter_ticks + compiler_ticks + unknown_ticks() != 0) { | |
1473 tty->fill_to(col1); | |
1474 tty->print_cr("Thread-local ticks:"); | |
1475 print_ticks("Blocked (of total)", blocked_ticks, total); | |
1476 print_ticks("Class loader", class_loader_ticks, active); | |
1477 print_ticks("Extra", extra_ticks, active); | |
1478 print_ticks("Interpreter", interpreter_ticks, active); | |
1479 print_ticks("Compilation", compiler_ticks, active); | |
1480 print_ticks("Unknown: vtable stubs", unknown_ticks_array[ut_vtable_stubs], active); | |
1481 print_ticks("Unknown: null method", unknown_ticks_array[ut_null_method], active); | |
1482 print_ticks("Unknown: running frame", unknown_ticks_array[ut_running_frame], active); | |
1483 print_ticks("Unknown: calling frame", unknown_ticks_array[ut_calling_frame], active); | |
1484 print_ticks("Unknown: no pc", unknown_ticks_array[ut_no_pc], active); | |
1485 print_ticks("Unknown: no last frame", unknown_ticks_array[ut_no_last_Java_frame], active); | |
1486 print_ticks("Unknown: thread_state", unknown_ticks_array[ut_unknown_thread_state], active); | |
1487 tty->cr(); | |
1488 } | |
1489 | |
1490 if (WizardMode) { | |
1491 tty->print_cr("Node area used: %dKb", (area_top - area_bottom) / 1024); | |
1492 } | |
1493 reset(); | |
1494 } | |
1495 | |
1496 /* | |
1497 ThreadProfiler::print_unknown(){ | |
1498 if (table == NULL) { | |
1499 return; | |
1500 } | |
1501 | |
1502 if (thread_ticks <= 0) { | |
1503 return; | |
1504 } | |
1505 } */ | |
1506 | |
1507 void FlatProfiler::print(int unused) { | |
1508 ResourceMark rm; | |
1509 if (thread_profiler != NULL) { | |
1510 thread_profiler->print("All threads"); | |
1511 } else { | |
1512 MutexLocker tl(Threads_lock); | |
1513 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) { | |
1514 ThreadProfiler* pp = tp->get_thread_profiler(); | |
1515 if (pp != NULL) { | |
1516 pp->print(tp->get_thread_name()); | |
1517 } | |
1518 } | |
1519 } | |
1520 | |
1521 if (ProfilerPrintByteCodeStatistics) { | |
1522 print_byte_code_statistics(); | |
1523 } | |
1524 | |
1525 if (non_method_ticks() > 0) { | |
1526 tty->cr(); | |
1527 tty->print_cr("Global summary of %3.2f seconds:", timer.seconds()); | |
1528 print_ticks("Received ticks", received_ticks, received_ticks); | |
1529 print_ticks("Received GC ticks", received_gc_ticks, received_ticks); | |
1530 print_ticks("Compilation", compiler_ticks, received_ticks); | |
1531 print_ticks("Deoptimization", deopt_ticks, received_ticks); | |
1532 print_ticks("Other VM operations", vm_operation_ticks, received_ticks); | |
1533 #ifndef PRODUCT | |
1534 print_ticks("Blocked ticks", blocked_ticks, received_ticks); | |
1535 print_ticks("Threads_lock blocks", threads_lock_ticks, received_ticks); | |
1536 print_ticks("Delivered ticks", delivered_ticks, received_ticks); | |
1537 print_ticks("All ticks", all_ticks, received_ticks); | |
1538 #endif | |
1539 print_ticks("Class loader", class_loader_ticks, received_ticks); | |
1540 print_ticks("Extra ", extra_ticks, received_ticks); | |
1541 print_ticks("Interpreter", interpreter_ticks, received_ticks); | |
1542 print_ticks("Unknown code", unknown_ticks, received_ticks); | |
1543 } | |
1544 | |
1545 PCRecorder::print(); | |
1546 | |
1547 if(ProfileVM){ | |
1548 tty->cr(); | |
1549 vm_thread_profiler->print("VM Thread"); | |
1550 } | |
1551 } | |
1552 | |
1553 void IntervalData::print_header(outputStream* st) { | |
1554 st->print("i/c/n/g"); | |
1555 } | |
1556 | |
1557 void IntervalData::print_data(outputStream* st) { | |
1558 st->print("%d/%d/%d/%d", interpreted(), compiled(), native(), compiling()); | |
1559 } | |
1560 | |
1561 void FlatProfiler::interval_record_thread(ThreadProfiler* tp) { | |
1562 IntervalData id = tp->interval_data(); | |
1563 int total = id.total(); | |
1564 tp->interval_data_ref()->reset(); | |
1565 | |
1566 // Insertion sort the data, if it's relevant. | |
1567 for (int i = 0; i < interval_print_size; i += 1) { | |
1568 if (total > interval_data[i].total()) { | |
1569 for (int j = interval_print_size - 1; j > i; j -= 1) { | |
1570 interval_data[j] = interval_data[j-1]; | |
1571 } | |
1572 interval_data[i] = id; | |
1573 break; | |
1574 } | |
1575 } | |
1576 } | |
1577 | |
1578 void FlatProfiler::interval_print() { | |
1579 if ((interval_data[0].total() > 0)) { | |
1580 tty->stamp(); | |
1581 tty->print("\t"); | |
1582 IntervalData::print_header(tty); | |
1583 for (int i = 0; i < interval_print_size; i += 1) { | |
1584 if (interval_data[i].total() > 0) { | |
1585 tty->print("\t"); | |
1586 interval_data[i].print_data(tty); | |
1587 } | |
1588 } | |
1589 tty->cr(); | |
1590 } | |
1591 } | |
1592 | |
1593 void FlatProfiler::interval_reset() { | |
1594 for (int i = 0; i < interval_print_size; i += 1) { | |
1595 interval_data[i].reset(); | |
1596 } | |
1597 } | |
1598 | |
1599 void ThreadProfiler::oops_do(OopClosure* f) { | |
1600 if (table == NULL) return; | |
1601 | |
1602 for(int index = 0; index < table_size; index++) { | |
1603 for(ProfilerNode* node = table[index]; node; node = node->next()) | |
1604 node->oops_do(f); | |
1605 } | |
1606 } | |
1607 | |
1608 void FlatProfiler::oops_do(OopClosure* f) { | |
1609 if (thread_profiler != NULL) { | |
1610 thread_profiler->oops_do(f); | |
1611 } else { | |
1612 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) { | |
1613 ThreadProfiler* pp = tp->get_thread_profiler(); | |
1614 if (pp != NULL) { | |
1615 pp->oops_do(f); | |
1616 } | |
1617 } | |
1618 } | |
1619 } |