1 /*
2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/classLoader.hpp"
27 #include "code/codeCache.hpp"
28 #include "code/vtableStubs.hpp"
29 #include "gc/shared/collectedHeap.inline.hpp"
30 #include "interpreter/interpreter.hpp"
31 #include "memory/allocation.inline.hpp"
32 #include "memory/resourceArea.hpp"
33 #include "memory/universe.inline.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/symbol.hpp"
36 #include "runtime/deoptimization.hpp"
37 #include "runtime/fprofiler.hpp"
38 #include "runtime/mutexLocker.hpp"
39 #include "runtime/stubCodeGenerator.hpp"
40 #include "runtime/stubRoutines.hpp"
41 #include "runtime/task.hpp"
42 #include "runtime/thread.inline.hpp"
43 #include "runtime/vframe.hpp"
44 #include "utilities/macros.hpp"
45
46 // Static fields of FlatProfiler
47 int FlatProfiler::received_gc_ticks = 0;
48 int FlatProfiler::vm_operation_ticks = 0;
49 int FlatProfiler::threads_lock_ticks = 0;
50 int FlatProfiler::class_loader_ticks = 0;
51 int FlatProfiler::extra_ticks = 0;
52 int FlatProfiler::blocked_ticks = 0;
53 int FlatProfiler::deopt_ticks = 0;
54 int FlatProfiler::unknown_ticks = 0;
55 int FlatProfiler::interpreter_ticks = 0;
56 int FlatProfiler::compiler_ticks = 0;
57 int FlatProfiler::received_ticks = 0;
58 int FlatProfiler::delivered_ticks = 0;
59 int* FlatProfiler::bytecode_ticks = NULL;
60 int* FlatProfiler::bytecode_ticks_stub = NULL;
61 int FlatProfiler::all_int_ticks = 0;
62 int FlatProfiler::all_comp_ticks = 0;
63 int FlatProfiler::all_ticks = 0;
64 bool FlatProfiler::full_profile_flag = false;
65 ThreadProfiler* FlatProfiler::thread_profiler = NULL;
66 ThreadProfiler* FlatProfiler::vm_thread_profiler = NULL;
67 FlatProfilerTask* FlatProfiler::task = NULL;
68 elapsedTimer FlatProfiler::timer;
69 int FlatProfiler::interval_ticks_previous = 0;
70 IntervalData* FlatProfiler::interval_data = NULL;
71
72 ThreadProfiler::ThreadProfiler() {
73 // Space for the ProfilerNodes
74 const int area_size = 1 * ProfilerNodeSize * 1024;
75 area_bottom = AllocateHeap(area_size, mtInternal);
76 area_top = area_bottom;
77 area_limit = area_bottom + area_size;
78
79 // ProfilerNode pointer table
80 table = NEW_C_HEAP_ARRAY(ProfilerNode*, table_size, mtInternal);
81 initialize();
82 engaged = false;
83 }
84
85 ThreadProfiler::~ThreadProfiler() {
86 FreeHeap(area_bottom);
87 area_bottom = NULL;
88 area_top = NULL;
89 area_limit = NULL;
90 FreeHeap(table);
91 table = NULL;
92 }
93
94 // Statics for ThreadProfiler
95 int ThreadProfiler::table_size = 1024;
96
97 int ThreadProfiler::entry(int value) {
98 value = (value > 0) ? value : -value;
99 return value % table_size;
100 }
101
102 ThreadProfilerMark::ThreadProfilerMark(ThreadProfilerMark::Region r) {
103 _r = r;
104 _pp = NULL;
105 assert(((r > ThreadProfilerMark::noRegion) && (r < ThreadProfilerMark::maxRegion)), "ThreadProfilerMark::Region out of bounds");
106 Thread* tp = Thread::current();
107 if (tp != NULL && tp->is_Java_thread()) {
108 JavaThread* jtp = (JavaThread*) tp;
109 ThreadProfiler* pp = jtp->get_thread_profiler();
110 _pp = pp;
111 if (pp != NULL) {
112 pp->region_flag[r] = true;
113 }
114 }
115 }
116
117 ThreadProfilerMark::~ThreadProfilerMark() {
118 if (_pp != NULL) {
119 _pp->region_flag[_r] = false;
120 }
121 _pp = NULL;
122 }
123
124 // Random other statics
125 static const int col1 = 2; // position of output column 1
126 static const int col2 = 11; // position of output column 2
127 static const int col3 = 25; // position of output column 3
128 static const int col4 = 55; // position of output column 4
129
130
131 // Used for detailed profiling of nmethods.
132 class PCRecorder : AllStatic {
133 private:
134 static int* counters;
135 static address base;
136 enum {
137 bucket_size = 16
138 };
139 static int index_for(address pc) { return (pc - base)/bucket_size; }
140 static address pc_for(int index) { return base + (index * bucket_size); }
141 static int size() {
142 return ((int)CodeCache::max_capacity())/bucket_size * BytesPerWord;
143 }
144 public:
145 static address bucket_start_for(address pc) {
146 if (counters == NULL) return NULL;
147 return pc_for(index_for(pc));
148 }
149 static int bucket_count_for(address pc) { return counters[index_for(pc)]; }
150 static void init();
151 static void record(address pc);
152 static void print();
153 static void print_blobs(CodeBlob* cb);
154 };
155
156 int* PCRecorder::counters = NULL;
157 address PCRecorder::base = NULL;
158
159 void PCRecorder::init() {
160 MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag);
161 int s = size();
162 counters = NEW_C_HEAP_ARRAY(int, s, mtInternal);
163 for (int index = 0; index < s; index++) {
164 counters[index] = 0;
165 }
166 base = CodeCache::low_bound();
167 }
168
169 void PCRecorder::record(address pc) {
170 if (counters == NULL) return;
171 assert(CodeCache::contains(pc), "must be in CodeCache");
172 counters[index_for(pc)]++;
173 }
174
175
176 address FlatProfiler::bucket_start_for(address pc) {
177 return PCRecorder::bucket_start_for(pc);
178 }
179
180 int FlatProfiler::bucket_count_for(address pc) {
181 return PCRecorder::bucket_count_for(pc);
182 }
183
184 void PCRecorder::print() {
185 if (counters == NULL) return;
186
187 tty->cr();
188 tty->print_cr("Printing compiled methods with PC buckets having more than " INTX_FORMAT " ticks", ProfilerPCTickThreshold);
189 tty->print_cr("===================================================================");
190 tty->cr();
191
192 GrowableArray<CodeBlob*>* candidates = new GrowableArray<CodeBlob*>(20);
193
194
195 int s;
196 {
197 MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag);
198 s = size();
199 }
200
201 for (int index = 0; index < s; index++) {
202 int count = counters[index];
203 if (count > ProfilerPCTickThreshold) {
204 address pc = pc_for(index);
205 CodeBlob* cb = CodeCache::find_blob_unsafe(pc);
206 if (cb != NULL && candidates->find(cb) < 0) {
207 candidates->push(cb);
208 }
209 }
210 }
211 for (int i = 0; i < candidates->length(); i++) {
212 print_blobs(candidates->at(i));
213 }
214 }
215
216 void PCRecorder::print_blobs(CodeBlob* cb) {
217 if (cb != NULL) {
218 cb->print();
219 if (cb->is_nmethod()) {
220 ((nmethod*)cb)->print_code();
221 }
222 tty->cr();
223 } else {
224 tty->print_cr("stub code");
225 }
226 }
227
228 class tick_counter { // holds tick info for one node
229 public:
230 int ticks_in_code;
231 int ticks_in_native;
232
233 tick_counter() { ticks_in_code = ticks_in_native = 0; }
234 tick_counter(int code, int native) { ticks_in_code = code; ticks_in_native = native; }
235
236 int total() const {
237 return (ticks_in_code + ticks_in_native);
238 }
239
240 void add(tick_counter* a) {
241 ticks_in_code += a->ticks_in_code;
242 ticks_in_native += a->ticks_in_native;
243 }
244
245 void update(TickPosition where) {
246 switch(where) {
247 case tp_code: ticks_in_code++; break;
248 case tp_native: ticks_in_native++; break;
249 }
250 }
251
252 void print_code(outputStream* st, int total_ticks) {
253 st->print("%5.1f%% %5d ", total() * 100.0 / total_ticks, ticks_in_code);
254 }
255
256 void print_native(outputStream* st) {
257 st->print(" + %5d ", ticks_in_native);
258 }
259 };
260
261 class ProfilerNode {
262 private:
263 ProfilerNode* _next;
264 public:
265 tick_counter ticks;
266
267 public:
268
269 void* operator new(size_t size, ThreadProfiler* tp) throw();
270 void operator delete(void* p);
271
272 ProfilerNode() {
273 _next = NULL;
274 }
275
276 virtual ~ProfilerNode() {
277 if (_next)
278 delete _next;
279 }
280
281 void set_next(ProfilerNode* n) { _next = n; }
282 ProfilerNode* next() { return _next; }
283
284 void update(TickPosition where) { ticks.update(where);}
285 int total_ticks() { return ticks.total(); }
286
287 virtual bool is_interpreted() const { return false; }
288 virtual bool is_compiled() const { return false; }
289 virtual bool is_stub() const { return false; }
290 virtual bool is_runtime_stub() const{ return false; }
291 virtual void oops_do(OopClosure* f) = 0;
292
293 virtual bool interpreted_match(Method* m) const { return false; }
294 virtual bool compiled_match(Method* m ) const { return false; }
295 virtual bool stub_match(Method* m, const char* name) const { return false; }
296 virtual bool adapter_match() const { return false; }
297 virtual bool runtimeStub_match(const CodeBlob* stub, const char* name) const { return false; }
298 virtual bool unknown_compiled_match(const CodeBlob* cb) const { return false; }
299
300 static void print_title(outputStream* st) {
301 st->print(" + native");
302 st->fill_to(col3);
303 st->print("Method");
304 st->fill_to(col4);
305 st->cr();
306 }
307
308 static void print_total(outputStream* st, tick_counter* t, int total, const char* msg) {
309 t->print_code(st, total);
310 st->fill_to(col2);
311 t->print_native(st);
312 st->fill_to(col3);
313 st->print("%s", msg);
314 st->cr();
315 }
316
317 virtual Method* method() = 0;
318
319 virtual void print_method_on(outputStream* st) {
320 int limit;
321 int i;
322 Method* m = method();
323 Symbol* k = m->klass_name();
324 // Print the class name with dots instead of slashes
325 limit = k->utf8_length();
326 for (i = 0 ; i < limit ; i += 1) {
327 char c = (char) k->byte_at(i);
328 if (c == '/') {
329 c = '.';
330 }
331 st->print("%c", c);
332 }
333 if (limit > 0) {
334 st->print(".");
335 }
336 Symbol* n = m->name();
337 limit = n->utf8_length();
338 for (i = 0 ; i < limit ; i += 1) {
339 char c = (char) n->byte_at(i);
340 st->print("%c", c);
341 }
342 if (Verbose || WizardMode) {
343 // Disambiguate overloaded methods
344 Symbol* sig = m->signature();
345 sig->print_symbol_on(st);
346 } else if (MethodHandles::is_signature_polymorphic(m->intrinsic_id()))
347 // compare with Method::print_short_name
348 MethodHandles::print_as_basic_type_signature_on(st, m->signature(), true);
349 }
350
351 virtual void print(outputStream* st, int total_ticks) {
352 ticks.print_code(st, total_ticks);
353 st->fill_to(col2);
354 ticks.print_native(st);
355 st->fill_to(col3);
356 print_method_on(st);
357 st->cr();
358 }
359
360 // for hashing into the table
361 static int hash(Method* method) {
362 // The point here is to try to make something fairly unique
363 // out of the fields we can read without grabbing any locks
364 // since the method may be locked when we need the hash.
365 return (
366 method->code_size() ^
367 method->max_stack() ^
368 method->max_locals() ^
369 method->size_of_parameters());
370 }
371
372 // for sorting
373 static int compare(ProfilerNode** a, ProfilerNode** b) {
374 return (*b)->total_ticks() - (*a)->total_ticks();
375 }
376 };
377
378 void* ProfilerNode::operator new(size_t size, ThreadProfiler* tp) throw() {
379 void* result = (void*) tp->area_top;
380 tp->area_top += size;
381
382 if (tp->area_top > tp->area_limit) {
383 fatal("flat profiler buffer overflow");
384 }
385 return result;
386 }
387
388 void ProfilerNode::operator delete(void* p){
389 }
390
391 class interpretedNode : public ProfilerNode {
392 private:
393 Method* _method;
394 oop _class_loader; // needed to keep metadata for the method alive
395 public:
396 interpretedNode(Method* method, TickPosition where) : ProfilerNode() {
397 _method = method;
398 _class_loader = method->method_holder()->class_loader();
399 update(where);
400 }
401
402 bool is_interpreted() const { return true; }
403
404 bool interpreted_match(Method* m) const {
405 return _method == m;
406 }
407
408 void oops_do(OopClosure* f) {
409 f->do_oop(&_class_loader);
410 }
411
412 Method* method() { return _method; }
413
414 static void print_title(outputStream* st) {
415 st->fill_to(col1);
416 st->print("%11s", "Interpreted");
417 ProfilerNode::print_title(st);
418 }
419
420 void print(outputStream* st, int total_ticks) {
421 ProfilerNode::print(st, total_ticks);
422 }
423
424 void print_method_on(outputStream* st) {
425 ProfilerNode::print_method_on(st);
426 MethodCounters* mcs = method()->method_counters();
427 if (Verbose && mcs != NULL) mcs->invocation_counter()->print_short();
428 }
429 };
430
431 class compiledNode : public ProfilerNode {
432 private:
433 Method* _method;
434 oop _class_loader; // needed to keep metadata for the method alive
435 public:
436 compiledNode(Method* method, TickPosition where) : ProfilerNode() {
437 _method = method;
438 _class_loader = method->method_holder()->class_loader();
439 update(where);
440 }
441 bool is_compiled() const { return true; }
442
443 bool compiled_match(Method* m) const {
444 return _method == m;
445 }
446
447 Method* method() { return _method; }
448
449 void oops_do(OopClosure* f) {
450 f->do_oop(&_class_loader);
451 }
452
453 static void print_title(outputStream* st) {
454 st->fill_to(col1);
455 st->print("%11s", "Compiled");
456 ProfilerNode::print_title(st);
457 }
458
459 void print(outputStream* st, int total_ticks) {
460 ProfilerNode::print(st, total_ticks);
461 }
462
463 void print_method_on(outputStream* st) {
464 ProfilerNode::print_method_on(st);
465 }
466 };
467
468 class stubNode : public ProfilerNode {
469 private:
470 Method* _method;
471 oop _class_loader; // needed to keep metadata for the method alive
472 const char* _symbol; // The name of the nearest VM symbol (for +ProfileVM). Points to a unique string
473 public:
474 stubNode(Method* method, const char* name, TickPosition where) : ProfilerNode() {
475 _method = method;
476 _class_loader = method->method_holder()->class_loader();
477 _symbol = name;
478 update(where);
479 }
480
481 bool is_stub() const { return true; }
482
483 void oops_do(OopClosure* f) {
484 f->do_oop(&_class_loader);
485 }
486
487 bool stub_match(Method* m, const char* name) const {
488 return (_method == m) && (_symbol == name);
489 }
490
491 Method* method() { return _method; }
492
493 static void print_title(outputStream* st) {
494 st->fill_to(col1);
495 st->print("%11s", "Stub");
496 ProfilerNode::print_title(st);
497 }
498
499 void print(outputStream* st, int total_ticks) {
500 ProfilerNode::print(st, total_ticks);
501 }
502
503 void print_method_on(outputStream* st) {
504 ProfilerNode::print_method_on(st);
505 print_symbol_on(st);
506 }
507
508 void print_symbol_on(outputStream* st) {
509 if(_symbol) {
510 st->print(" (%s)", _symbol);
511 }
512 }
513 };
514
515 class adapterNode : public ProfilerNode {
516 public:
517 adapterNode(TickPosition where) : ProfilerNode() {
518 update(where);
519 }
520 bool is_compiled() const { return true; }
521
522 bool adapter_match() const { return true; }
523
524 Method* method() { return NULL; }
525
526 void oops_do(OopClosure* f) {
527 ;
528 }
529
530 void print(outputStream* st, int total_ticks) {
531 ProfilerNode::print(st, total_ticks);
532 }
533
534 void print_method_on(outputStream* st) {
535 st->print("%s", "adapters");
536 }
537 };
538
539 class runtimeStubNode : public ProfilerNode {
540 private:
541 const RuntimeStub* _stub;
542 const char* _symbol; // The name of the nearest VM symbol when ProfileVM is on. Points to a unique string.
543 public:
544 runtimeStubNode(const CodeBlob* stub, const char* name, TickPosition where) : ProfilerNode(), _stub(NULL), _symbol(name) {
545 assert(stub->is_runtime_stub(), "wrong code blob");
546 _stub = (RuntimeStub*) stub;
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 _stub->entry_point() == ((RuntimeStub*)stub)->entry_point() &&
555 (_symbol == name);
556 }
557
558 Method* method() { return NULL; }
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", _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 = ((const BufferBlob*)cb)->name();
593 else
594 _name = ((const 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(((const BufferBlob*)cb)->name(), _name);
602 else
603 return !strcmp(((const SingletonBlob*)cb)->name(), _name);
604 }
605
606 Method* method() { return NULL; }
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 = os::strdup(name);
632 update(where);
633 }
634
635 ~vmNode() {
636 if (_name != NULL) {
637 os::free((void*)_name);
638 }
639 }
640
641 const char *name() const { return _name; }
642 bool is_compiled() const { return true; }
643
644 bool vm_match(const char* name) const { return strcmp(name, _name) == 0; }
645
646 Method* method() { return NULL; }
647
648 static int hash(const char* name){
649 // Compute a simple hash
650 const char* cp = name;
651 int h = 0;
652
653 if(name != NULL){
654 while(*cp != '\0'){
655 h = (h << 1) ^ *cp;
656 cp++;
657 }
658 }
659 return h;
660 }
661
662 void oops_do(OopClosure* f) {
663 ;
664 }
665
666 void print(outputStream* st, int total_ticks) {
667 ProfilerNode::print(st, total_ticks);
668 }
669
670 void print_method_on(outputStream* st) {
671 if(_name==NULL){
672 st->print("%s", "unknown code");
673 }
674 else {
675 st->print("%s", _name);
676 }
677 }
678 };
679
680 void ThreadProfiler::interpreted_update(Method* method, TickPosition where) {
681 int index = entry(ProfilerNode::hash(method));
682 if (!table[index]) {
683 table[index] = new (this) interpretedNode(method, where);
684 } else {
685 ProfilerNode* prev = table[index];
686 for(ProfilerNode* node = prev; node; node = node->next()) {
687 if (node->interpreted_match(method)) {
688 node->update(where);
689 return;
690 }
691 prev = node;
692 }
693 prev->set_next(new (this) interpretedNode(method, where));
694 }
695 }
696
697 void ThreadProfiler::compiled_update(Method* method, TickPosition where) {
698 int index = entry(ProfilerNode::hash(method));
699 if (!table[index]) {
700 table[index] = new (this) compiledNode(method, where);
701 } else {
702 ProfilerNode* prev = table[index];
703 for(ProfilerNode* node = prev; node; node = node->next()) {
704 if (node->compiled_match(method)) {
705 node->update(where);
706 return;
707 }
708 prev = node;
709 }
710 prev->set_next(new (this) compiledNode(method, where));
711 }
712 }
713
714 void ThreadProfiler::stub_update(Method* method, const char* name, TickPosition where) {
715 int index = entry(ProfilerNode::hash(method));
716 if (!table[index]) {
717 table[index] = new (this) stubNode(method, name, where);
718 } else {
719 ProfilerNode* prev = table[index];
720 for(ProfilerNode* node = prev; node; node = node->next()) {
721 if (node->stub_match(method, name)) {
722 node->update(where);
723 return;
724 }
725 prev = node;
726 }
727 prev->set_next(new (this) stubNode(method, name, where));
728 }
729 }
730
731 void ThreadProfiler::adapter_update(TickPosition where) {
732 int index = 0;
733 if (!table[index]) {
734 table[index] = new (this) adapterNode(where);
735 } else {
736 ProfilerNode* prev = table[index];
737 for(ProfilerNode* node = prev; node; node = node->next()) {
738 if (node->adapter_match()) {
739 node->update(where);
740 return;
741 }
742 prev = node;
743 }
744 prev->set_next(new (this) adapterNode(where));
745 }
746 }
747
748 void ThreadProfiler::runtime_stub_update(const CodeBlob* stub, const char* name, TickPosition where) {
749 int index = 0;
750 if (!table[index]) {
751 table[index] = new (this) runtimeStubNode(stub, name, where);
752 } else {
753 ProfilerNode* prev = table[index];
754 for(ProfilerNode* node = prev; node; node = node->next()) {
755 if (node->runtimeStub_match(stub, name)) {
756 node->update(where);
757 return;
758 }
759 prev = node;
760 }
761 prev->set_next(new (this) runtimeStubNode(stub, name, where));
762 }
763 }
764
765
766 void ThreadProfiler::unknown_compiled_update(const CodeBlob* cb, TickPosition where) {
767 int index = 0;
768 if (!table[index]) {
769 table[index] = new (this) unknown_compiledNode(cb, where);
770 } else {
771 ProfilerNode* prev = table[index];
772 for(ProfilerNode* node = prev; node; node = node->next()) {
773 if (node->unknown_compiled_match(cb)) {
774 node->update(where);
775 return;
776 }
777 prev = node;
778 }
779 prev->set_next(new (this) unknown_compiledNode(cb, where));
780 }
781 }
782
783 void ThreadProfiler::vm_update(TickPosition where) {
784 vm_update(NULL, where);
785 }
786
787 void ThreadProfiler::vm_update(const char* name, TickPosition where) {
788 int index = entry(vmNode::hash(name));
789 assert(index >= 0, "Must be positive");
790 // Note that we call strdup below since the symbol may be resource allocated
791 if (!table[index]) {
792 table[index] = new (this) vmNode(name, where);
793 } else {
794 ProfilerNode* prev = table[index];
795 for(ProfilerNode* node = prev; node; node = node->next()) {
796 if (((vmNode *)node)->vm_match(name)) {
797 node->update(where);
798 return;
799 }
800 prev = node;
801 }
802 prev->set_next(new (this) vmNode(name, where));
803 }
804 }
805
806
807 class FlatProfilerTask : public PeriodicTask {
808 public:
809 FlatProfilerTask(int interval_time) : PeriodicTask(interval_time) {}
810 void task();
811 };
812
813 void FlatProfiler::record_vm_operation() {
814 if (Universe::heap()->is_gc_active()) {
815 FlatProfiler::received_gc_ticks += 1;
816 return;
817 }
818
819 if (DeoptimizationMarker::is_active()) {
820 FlatProfiler::deopt_ticks += 1;
821 return;
822 }
823
824 FlatProfiler::vm_operation_ticks += 1;
825 }
826
827 void FlatProfiler::record_vm_tick() {
828 // Profile the VM Thread itself if needed
829 // This is done without getting the Threads_lock and we can go deep
830 // inside Safepoint, etc.
831 if( ProfileVM ) {
832 ResourceMark rm;
833 ExtendedPC epc;
834 const char *name = NULL;
835 char buf[256];
836 buf[0] = '\0';
837
838 vm_thread_profiler->inc_thread_ticks();
839
840 // Get a snapshot of a current VMThread pc (and leave it running!)
841 // The call may fail in some circumstances
842 epc = os::get_thread_pc(VMThread::vm_thread());
843 if(epc.pc() != NULL) {
844 if (os::dll_address_to_function_name(epc.pc(), buf, sizeof(buf), NULL)) {
845 name = buf;
846 }
847 }
848 if (name != NULL) {
849 vm_thread_profiler->vm_update(name, tp_native);
850 }
851 }
852 }
853
854 void FlatProfiler::record_thread_ticks() {
855
856 int maxthreads, suspendedthreadcount;
857 JavaThread** threadsList;
858 bool interval_expired = false;
859
860 if (ProfileIntervals &&
861 (FlatProfiler::received_ticks >= interval_ticks_previous + ProfileIntervalsTicks)) {
862 interval_expired = true;
863 interval_ticks_previous = FlatProfiler::received_ticks;
864 }
865
866 // Try not to wait for the Threads_lock
867 if (Threads_lock->try_lock()) {
868 { // Threads_lock scope
869 maxthreads = Threads::number_of_threads();
870 threadsList = NEW_C_HEAP_ARRAY(JavaThread *, maxthreads, mtInternal);
871 suspendedthreadcount = 0;
872 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
873 if (tp->is_Compiler_thread()) {
874 // Only record ticks for active compiler threads
875 CompilerThread* cthread = (CompilerThread*)tp;
876 if (cthread->task() != NULL) {
877 // The compiler is active. If we need to access any of the fields
878 // of the compiler task we should suspend the CompilerThread first.
879 FlatProfiler::compiler_ticks += 1;
880 continue;
881 }
882 }
883
884 // First externally suspend all threads by marking each for
885 // external suspension - so it will stop at its next transition
886 // Then do a safepoint
887 ThreadProfiler* pp = tp->get_thread_profiler();
888 if (pp != NULL && pp->engaged) {
889 MutexLockerEx ml(tp->SR_lock(), Mutex::_no_safepoint_check_flag);
890 if (!tp->is_external_suspend() && !tp->is_exiting()) {
891 tp->set_external_suspend();
892 threadsList[suspendedthreadcount++] = tp;
893 }
894 }
895 }
896 Threads_lock->unlock();
897 }
898 // Suspend each thread. This call should just return
899 // for any threads that have already self-suspended
900 // Net result should be one safepoint
901 for (int j = 0; j < suspendedthreadcount; j++) {
902 JavaThread *tp = threadsList[j];
903 if (tp) {
904 tp->java_suspend();
905 }
906 }
907
908 // We are responsible for resuming any thread on this list
909 for (int i = 0; i < suspendedthreadcount; i++) {
910 JavaThread *tp = threadsList[i];
911 if (tp) {
912 ThreadProfiler* pp = tp->get_thread_profiler();
913 if (pp != NULL && pp->engaged) {
914 HandleMark hm;
915 FlatProfiler::delivered_ticks += 1;
916 if (interval_expired) {
917 FlatProfiler::interval_record_thread(pp);
918 }
919 // This is the place where we check to see if a user thread is
920 // blocked waiting for compilation.
921 if (tp->blocked_on_compilation()) {
922 pp->compiler_ticks += 1;
923 pp->interval_data_ref()->inc_compiling();
924 } else {
925 pp->record_tick(tp);
926 }
927 }
928 MutexLocker ml(Threads_lock);
929 tp->java_resume();
930 }
931 }
932 if (interval_expired) {
933 FlatProfiler::interval_print();
934 FlatProfiler::interval_reset();
935 }
936
937 FREE_C_HEAP_ARRAY(JavaThread *, threadsList);
938 } else {
939 // Couldn't get the threads lock, just record that rather than blocking
940 FlatProfiler::threads_lock_ticks += 1;
941 }
942
943 }
944
945 void FlatProfilerTask::task() {
946 FlatProfiler::received_ticks += 1;
947
948 if (ProfileVM) {
949 FlatProfiler::record_vm_tick();
950 }
951
952 VM_Operation* op = VMThread::vm_operation();
953 if (op != NULL) {
954 FlatProfiler::record_vm_operation();
955 if (SafepointSynchronize::is_at_safepoint()) {
956 return;
957 }
958 }
959 FlatProfiler::record_thread_ticks();
960 }
961
962 void ThreadProfiler::record_interpreted_tick(JavaThread* thread, frame fr, TickPosition where, int* ticks) {
963 FlatProfiler::all_int_ticks++;
964 if (!FlatProfiler::full_profile()) {
965 return;
966 }
967
968 if (!fr.is_interpreted_frame_valid(thread)) {
969 // tick came at a bad time
970 interpreter_ticks += 1;
971 FlatProfiler::interpreter_ticks += 1;
972 return;
973 }
974
975 // The frame has been fully validated so we can trust the method and bci
976
977 Method* method = *fr.interpreter_frame_method_addr();
978
979 interpreted_update(method, where);
980
981 // update byte code table
982 InterpreterCodelet* desc = Interpreter::codelet_containing(fr.pc());
983 if (desc != NULL && desc->bytecode() >= 0) {
984 ticks[desc->bytecode()]++;
985 }
986 }
987
988 void ThreadProfiler::record_compiled_tick(JavaThread* thread, frame fr, TickPosition where) {
989 const char *name = NULL;
990 TickPosition localwhere = where;
991
992 FlatProfiler::all_comp_ticks++;
993 if (!FlatProfiler::full_profile()) return;
994
995 CodeBlob* cb = fr.cb();
996
997 // For runtime stubs, record as native rather than as compiled
998 if (cb->is_runtime_stub()) {
999 RegisterMap map(thread, false);
1000 fr = fr.sender(&map);
1001 cb = fr.cb();
1002 localwhere = tp_native;
1003 }
1004
1005 Method* method = cb->is_compiled() ? cb->as_compiled_method()->method() : (Method*) NULL;
1006 if (method == NULL) {
1007 if (cb->is_runtime_stub())
1008 runtime_stub_update(cb, name, localwhere);
1009 else
1010 unknown_compiled_update(cb, localwhere);
1011 }
1012 else {
1013 if (method->is_native()) {
1014 stub_update(method, name, localwhere);
1015 } else {
1016 compiled_update(method, localwhere);
1017 }
1018 }
1019 }
1020
1021 extern "C" void find(int x);
1022
1023
1024 void ThreadProfiler::record_tick_for_running_frame(JavaThread* thread, frame fr) {
1025 // The tick happened in real code -> non VM code
1026 if (fr.is_interpreted_frame()) {
1027 interval_data_ref()->inc_interpreted();
1028 record_interpreted_tick(thread, fr, tp_code, FlatProfiler::bytecode_ticks);
1029 return;
1030 }
1031
1032 if (CodeCache::contains(fr.pc())) {
1033 interval_data_ref()->inc_compiled();
1034 PCRecorder::record(fr.pc());
1035 record_compiled_tick(thread, fr, tp_code);
1036 return;
1037 }
1038
1039 if (VtableStubs::stub_containing(fr.pc()) != NULL) {
1040 unknown_ticks_array[ut_vtable_stubs] += 1;
1041 return;
1042 }
1043
1044 frame caller = fr.profile_find_Java_sender_frame(thread);
1045
1046 if (caller.sp() != NULL && caller.pc() != NULL) {
1047 record_tick_for_calling_frame(thread, caller);
1048 return;
1049 }
1050
1051 unknown_ticks_array[ut_running_frame] += 1;
1052 FlatProfiler::unknown_ticks += 1;
1053 }
1054
1055 void ThreadProfiler::record_tick_for_calling_frame(JavaThread* thread, frame fr) {
1056 // The tick happened in VM code
1057 interval_data_ref()->inc_native();
1058 if (fr.is_interpreted_frame()) {
1059 record_interpreted_tick(thread, fr, tp_native, FlatProfiler::bytecode_ticks_stub);
1060 return;
1061 }
1062 if (CodeCache::contains(fr.pc())) {
1063 record_compiled_tick(thread, fr, tp_native);
1064 return;
1065 }
1066
1067 frame caller = fr.profile_find_Java_sender_frame(thread);
1068
1069 if (caller.sp() != NULL && caller.pc() != NULL) {
1070 record_tick_for_calling_frame(thread, caller);
1071 return;
1072 }
1073
1074 unknown_ticks_array[ut_calling_frame] += 1;
1075 FlatProfiler::unknown_ticks += 1;
1076 }
1077
1078 void ThreadProfiler::record_tick(JavaThread* thread) {
1079 FlatProfiler::all_ticks++;
1080 thread_ticks += 1;
1081
1082 // Here's another way to track global state changes.
1083 // When the class loader starts it marks the ThreadProfiler to tell it it is in the class loader
1084 // and we check that here.
1085 // This is more direct, and more than one thread can be in the class loader at a time,
1086 // but it does mean the class loader has to know about the profiler.
1087 if (region_flag[ThreadProfilerMark::classLoaderRegion]) {
1088 class_loader_ticks += 1;
1089 FlatProfiler::class_loader_ticks += 1;
1090 return;
1091 } else if (region_flag[ThreadProfilerMark::extraRegion]) {
1092 extra_ticks += 1;
1093 FlatProfiler::extra_ticks += 1;
1094 return;
1095 }
1096 // Note that the WatcherThread can now stop for safepoints
1097 uint32_t debug_bits = 0;
1098 if (!thread->wait_for_ext_suspend_completion(SuspendRetryCount,
1099 SuspendRetryDelay, &debug_bits)) {
1100 unknown_ticks_array[ut_unknown_thread_state] += 1;
1101 FlatProfiler::unknown_ticks += 1;
1102 return;
1103 }
1104
1105 frame fr;
1106
1107 switch (thread->thread_state()) {
1108 case _thread_in_native:
1109 case _thread_in_native_trans:
1110 case _thread_in_vm:
1111 case _thread_in_vm_trans:
1112 if (thread->profile_last_Java_frame(&fr)) {
1113 if (fr.is_runtime_frame()) {
1114 RegisterMap map(thread, false);
1115 fr = fr.sender(&map);
1116 }
1117 record_tick_for_calling_frame(thread, fr);
1118 } else {
1119 unknown_ticks_array[ut_no_last_Java_frame] += 1;
1120 FlatProfiler::unknown_ticks += 1;
1121 }
1122 break;
1123 // handle_special_runtime_exit_condition self-suspends threads in Java
1124 case _thread_in_Java:
1125 case _thread_in_Java_trans:
1126 if (thread->profile_last_Java_frame(&fr)) {
1127 if (fr.is_safepoint_blob_frame()) {
1128 RegisterMap map(thread, false);
1129 fr = fr.sender(&map);
1130 }
1131 record_tick_for_running_frame(thread, fr);
1132 } else {
1133 unknown_ticks_array[ut_no_last_Java_frame] += 1;
1134 FlatProfiler::unknown_ticks += 1;
1135 }
1136 break;
1137 case _thread_blocked:
1138 case _thread_blocked_trans:
1139 if (thread->osthread() && thread->osthread()->get_state() == RUNNABLE) {
1140 if (thread->profile_last_Java_frame(&fr)) {
1141 if (fr.is_safepoint_blob_frame()) {
1142 RegisterMap map(thread, false);
1143 fr = fr.sender(&map);
1144 record_tick_for_running_frame(thread, fr);
1145 } else {
1146 record_tick_for_calling_frame(thread, fr);
1147 }
1148 } else {
1149 unknown_ticks_array[ut_no_last_Java_frame] += 1;
1150 FlatProfiler::unknown_ticks += 1;
1151 }
1152 } else {
1153 blocked_ticks += 1;
1154 FlatProfiler::blocked_ticks += 1;
1155 }
1156 break;
1157 case _thread_uninitialized:
1158 case _thread_new:
1159 // not used, included for completeness
1160 case _thread_new_trans:
1161 unknown_ticks_array[ut_no_last_Java_frame] += 1;
1162 FlatProfiler::unknown_ticks += 1;
1163 break;
1164 default:
1165 unknown_ticks_array[ut_unknown_thread_state] += 1;
1166 FlatProfiler::unknown_ticks += 1;
1167 break;
1168 }
1169 return;
1170 }
1171
1172 void ThreadProfiler::engage() {
1173 engaged = true;
1174 timer.start();
1175 }
1176
1177 void ThreadProfiler::disengage() {
1178 engaged = false;
1179 timer.stop();
1180 }
1181
1182 void ThreadProfiler::initialize() {
1183 for (int index = 0; index < table_size; index++) {
1184 table[index] = NULL;
1185 }
1186 thread_ticks = 0;
1187 blocked_ticks = 0;
1188 compiler_ticks = 0;
1189 interpreter_ticks = 0;
1190 for (int ut = 0; ut < ut_end; ut += 1) {
1191 unknown_ticks_array[ut] = 0;
1192 }
1193 region_flag[ThreadProfilerMark::classLoaderRegion] = false;
1194 class_loader_ticks = 0;
1195 region_flag[ThreadProfilerMark::extraRegion] = false;
1196 extra_ticks = 0;
1197 timer.start();
1198 interval_data_ref()->reset();
1199 }
1200
1201 void ThreadProfiler::reset() {
1202 timer.stop();
1203 if (table != NULL) {
1204 for (int index = 0; index < table_size; index++) {
1205 ProfilerNode* n = table[index];
1206 if (n != NULL) {
1207 delete n;
1208 }
1209 }
1210 }
1211 initialize();
1212 }
1213
1214 void FlatProfiler::allocate_table() {
1215 { // Bytecode table
1216 bytecode_ticks = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal);
1217 bytecode_ticks_stub = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal);
1218 for(int index = 0; index < Bytecodes::number_of_codes; index++) {
1219 bytecode_ticks[index] = 0;
1220 bytecode_ticks_stub[index] = 0;
1221 }
1222 }
1223
1224 if (ProfilerRecordPC) PCRecorder::init();
1225
1226 interval_data = NEW_C_HEAP_ARRAY(IntervalData, interval_print_size, mtInternal);
1227 FlatProfiler::interval_reset();
1228 }
1229
1230 void FlatProfiler::engage(JavaThread* mainThread, bool fullProfile) {
1231 full_profile_flag = fullProfile;
1232 if (bytecode_ticks == NULL) {
1233 allocate_table();
1234 }
1235 if(ProfileVM && (vm_thread_profiler == NULL)){
1236 vm_thread_profiler = new ThreadProfiler();
1237 }
1238 if (task == NULL) {
1239 task = new FlatProfilerTask(WatcherThread::delay_interval);
1240 task->enroll();
1241 }
1242 timer.start();
1243 if (mainThread != NULL) {
1244 // When mainThread was created, it might not have a ThreadProfiler
1245 ThreadProfiler* pp = mainThread->get_thread_profiler();
1246 if (pp == NULL) {
1247 mainThread->set_thread_profiler(new ThreadProfiler());
1248 } else {
1249 pp->reset();
1250 }
1251 mainThread->get_thread_profiler()->engage();
1252 }
1253 // This is where we would assign thread_profiler
1254 // if we wanted only one thread_profiler for all threads.
1255 thread_profiler = NULL;
1256 }
1257
1258 void FlatProfiler::disengage() {
1259 if (!task) {
1260 return;
1261 }
1262 timer.stop();
1263 task->disenroll();
1264 delete task;
1265 task = NULL;
1266 if (thread_profiler != NULL) {
1267 thread_profiler->disengage();
1268 } else {
1269 MutexLocker tl(Threads_lock);
1270 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
1271 ThreadProfiler* pp = tp->get_thread_profiler();
1272 if (pp != NULL) {
1273 pp->disengage();
1274 }
1275 }
1276 }
1277 }
1278
1279 void FlatProfiler::reset() {
1280 if (task) {
1281 disengage();
1282 }
1283
1284 class_loader_ticks = 0;
1285 extra_ticks = 0;
1286 received_gc_ticks = 0;
1287 vm_operation_ticks = 0;
1288 compiler_ticks = 0;
1289 deopt_ticks = 0;
1290 interpreter_ticks = 0;
1291 blocked_ticks = 0;
1292 unknown_ticks = 0;
1293 received_ticks = 0;
1294 delivered_ticks = 0;
1295 timer.stop();
1296 }
1297
1298 bool FlatProfiler::is_active() {
1299 return task != NULL;
1300 }
1301
1302 void FlatProfiler::print_byte_code_statistics() {
1303 GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200);
1304
1305 tty->print_cr(" Bytecode ticks:");
1306 for (int index = 0; index < Bytecodes::number_of_codes; index++) {
1307 if (FlatProfiler::bytecode_ticks[index] > 0 || FlatProfiler::bytecode_ticks_stub[index] > 0) {
1308 tty->print_cr(" %4d %4d = %s",
1309 FlatProfiler::bytecode_ticks[index],
1310 FlatProfiler::bytecode_ticks_stub[index],
1311 Bytecodes::name( (Bytecodes::Code) index));
1312 }
1313 }
1314 tty->cr();
1315 }
1316
1317 void print_ticks(const char* title, int ticks, int total) {
1318 if (ticks > 0) {
1319 tty->print("%5.1f%% %5d", ticks * 100.0 / total, ticks);
1320 tty->fill_to(col3);
1321 tty->print("%s", title);
1322 tty->cr();
1323 }
1324 }
1325
1326 void ThreadProfiler::print(const char* thread_name) {
1327 ResourceMark rm;
1328 MutexLocker ppl(ProfilePrint_lock);
1329 int index = 0; // Declared outside for loops for portability
1330
1331 if (table == NULL) {
1332 return;
1333 }
1334
1335 if (thread_ticks <= 0) {
1336 return;
1337 }
1338
1339 const char* title = "too soon to tell";
1340 double secs = timer.seconds();
1341
1342 GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200);
1343 for(index = 0; index < table_size; index++) {
1344 for(ProfilerNode* node = table[index]; node; node = node->next())
1345 array->append(node);
1346 }
1347
1348 array->sort(&ProfilerNode::compare);
1349
1350 // compute total (sanity check)
1351 int active =
1352 class_loader_ticks +
1353 compiler_ticks +
1354 interpreter_ticks +
1355 unknown_ticks();
1356 for (index = 0; index < array->length(); index++) {
1357 active += array->at(index)->ticks.total();
1358 }
1359 int total = active + blocked_ticks;
1360
1361 tty->cr();
1362 tty->print_cr("Flat profile of %3.2f secs (%d total ticks): %s", secs, total, thread_name);
1363 if (total != thread_ticks) {
1364 print_ticks("Lost ticks", thread_ticks-total, thread_ticks);
1365 }
1366 tty->cr();
1367
1368 // print interpreted methods
1369 tick_counter interpreted_ticks;
1370 bool has_interpreted_ticks = false;
1371 int print_count = 0;
1372 for (index = 0; index < array->length(); index++) {
1373 ProfilerNode* n = array->at(index);
1374 if (n->is_interpreted()) {
1375 interpreted_ticks.add(&n->ticks);
1376 if (!has_interpreted_ticks) {
1377 interpretedNode::print_title(tty);
1378 has_interpreted_ticks = true;
1379 }
1380 if (print_count++ < ProfilerNumberOfInterpretedMethods) {
1381 n->print(tty, active);
1382 }
1383 }
1384 }
1385 if (has_interpreted_ticks) {
1386 if (print_count <= ProfilerNumberOfInterpretedMethods) {
1387 title = "Total interpreted";
1388 } else {
1389 title = "Total interpreted (including elided)";
1390 }
1391 interpretedNode::print_total(tty, &interpreted_ticks, active, title);
1392 tty->cr();
1393 }
1394
1395 // print compiled methods
1396 tick_counter compiled_ticks;
1397 bool has_compiled_ticks = false;
1398 print_count = 0;
1399 for (index = 0; index < array->length(); index++) {
1400 ProfilerNode* n = array->at(index);
1401 if (n->is_compiled()) {
1402 compiled_ticks.add(&n->ticks);
1403 if (!has_compiled_ticks) {
1404 compiledNode::print_title(tty);
1405 has_compiled_ticks = true;
1406 }
1407 if (print_count++ < ProfilerNumberOfCompiledMethods) {
1408 n->print(tty, active);
1409 }
1410 }
1411 }
1412 if (has_compiled_ticks) {
1413 if (print_count <= ProfilerNumberOfCompiledMethods) {
1414 title = "Total compiled";
1415 } else {
1416 title = "Total compiled (including elided)";
1417 }
1418 compiledNode::print_total(tty, &compiled_ticks, active, title);
1419 tty->cr();
1420 }
1421
1422 // print stub methods
1423 tick_counter stub_ticks;
1424 bool has_stub_ticks = false;
1425 print_count = 0;
1426 for (index = 0; index < array->length(); index++) {
1427 ProfilerNode* n = array->at(index);
1428 if (n->is_stub()) {
1429 stub_ticks.add(&n->ticks);
1430 if (!has_stub_ticks) {
1431 stubNode::print_title(tty);
1432 has_stub_ticks = true;
1433 }
1434 if (print_count++ < ProfilerNumberOfStubMethods) {
1435 n->print(tty, active);
1436 }
1437 }
1438 }
1439 if (has_stub_ticks) {
1440 if (print_count <= ProfilerNumberOfStubMethods) {
1441 title = "Total stub";
1442 } else {
1443 title = "Total stub (including elided)";
1444 }
1445 stubNode::print_total(tty, &stub_ticks, active, title);
1446 tty->cr();
1447 }
1448
1449 // print runtime stubs
1450 tick_counter runtime_stub_ticks;
1451 bool has_runtime_stub_ticks = false;
1452 print_count = 0;
1453 for (index = 0; index < array->length(); index++) {
1454 ProfilerNode* n = array->at(index);
1455 if (n->is_runtime_stub()) {
1456 runtime_stub_ticks.add(&n->ticks);
1457 if (!has_runtime_stub_ticks) {
1458 runtimeStubNode::print_title(tty);
1459 has_runtime_stub_ticks = true;
1460 }
1461 if (print_count++ < ProfilerNumberOfRuntimeStubNodes) {
1462 n->print(tty, active);
1463 }
1464 }
1465 }
1466 if (has_runtime_stub_ticks) {
1467 if (print_count <= ProfilerNumberOfRuntimeStubNodes) {
1468 title = "Total runtime stubs";
1469 } else {
1470 title = "Total runtime stubs (including elided)";
1471 }
1472 runtimeStubNode::print_total(tty, &runtime_stub_ticks, active, title);
1473 tty->cr();
1474 }
1475
1476 if (blocked_ticks + class_loader_ticks + interpreter_ticks + compiler_ticks + unknown_ticks() != 0) {
1477 tty->fill_to(col1);
1478 tty->print_cr("Thread-local ticks:");
1479 print_ticks("Blocked (of total)", blocked_ticks, total);
1480 print_ticks("Class loader", class_loader_ticks, active);
1481 print_ticks("Extra", extra_ticks, active);
1482 print_ticks("Interpreter", interpreter_ticks, active);
1483 print_ticks("Compilation", compiler_ticks, active);
1484 print_ticks("Unknown: vtable stubs", unknown_ticks_array[ut_vtable_stubs], active);
1485 print_ticks("Unknown: null method", unknown_ticks_array[ut_null_method], active);
1486 print_ticks("Unknown: running frame", unknown_ticks_array[ut_running_frame], active);
1487 print_ticks("Unknown: calling frame", unknown_ticks_array[ut_calling_frame], active);
1488 print_ticks("Unknown: no pc", unknown_ticks_array[ut_no_pc], active);
1489 print_ticks("Unknown: no last frame", unknown_ticks_array[ut_no_last_Java_frame], active);
1490 print_ticks("Unknown: thread_state", unknown_ticks_array[ut_unknown_thread_state], active);
1491 tty->cr();
1492 }
1493
1494 if (WizardMode) {
1495 tty->print_cr("Node area used: " INTX_FORMAT " Kb", (area_top - area_bottom) / 1024);
1496 }
1497 reset();
1498 }
1499
1500 /*
1501 ThreadProfiler::print_unknown(){
1502 if (table == NULL) {
1503 return;
1504 }
1505
1506 if (thread_ticks <= 0) {
1507 return;
1508 }
1509 } */
1510
1511 void FlatProfiler::print(int unused) {
1512 ResourceMark rm;
1513 if (thread_profiler != NULL) {
1514 thread_profiler->print("All threads");
1515 } else {
1516 MutexLocker tl(Threads_lock);
1517 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
1518 ThreadProfiler* pp = tp->get_thread_profiler();
1519 if (pp != NULL) {
1520 pp->print(tp->get_thread_name());
1521 }
1522 }
1523 }
1524
1525 if (ProfilerPrintByteCodeStatistics) {
1526 print_byte_code_statistics();
1527 }
1528
1529 if (non_method_ticks() > 0) {
1530 tty->cr();
1531 tty->print_cr("Global summary of %3.2f seconds:", timer.seconds());
1532 print_ticks("Received ticks", received_ticks, received_ticks);
1533 print_ticks("Received GC ticks", received_gc_ticks, received_ticks);
1534 print_ticks("Compilation", compiler_ticks, received_ticks);
1535 print_ticks("Deoptimization", deopt_ticks, received_ticks);
1536 print_ticks("Other VM operations", vm_operation_ticks, received_ticks);
1537 #ifndef PRODUCT
1538 print_ticks("Blocked ticks", blocked_ticks, received_ticks);
1539 print_ticks("Threads_lock blocks", threads_lock_ticks, received_ticks);
1540 print_ticks("Delivered ticks", delivered_ticks, received_ticks);
1541 print_ticks("All ticks", all_ticks, received_ticks);
1542 #endif
1543 print_ticks("Class loader", class_loader_ticks, received_ticks);
1544 print_ticks("Extra ", extra_ticks, received_ticks);
1545 print_ticks("Interpreter", interpreter_ticks, received_ticks);
1546 print_ticks("Unknown code", unknown_ticks, received_ticks);
1547 }
1548
1549 PCRecorder::print();
1550
1551 if(ProfileVM){
1552 tty->cr();
1553 vm_thread_profiler->print("VM Thread");
1554 }
1555 }
1556
1557 void IntervalData::print_header(outputStream* st) {
1558 st->print("i/c/n/g");
1559 }
1560
1561 void IntervalData::print_data(outputStream* st) {
1562 st->print("%d/%d/%d/%d", interpreted(), compiled(), native(), compiling());
1563 }
1564
1565 void FlatProfiler::interval_record_thread(ThreadProfiler* tp) {
1566 IntervalData id = tp->interval_data();
1567 int total = id.total();
1568 tp->interval_data_ref()->reset();
1569
1570 // Insertion sort the data, if it's relevant.
1571 for (int i = 0; i < interval_print_size; i += 1) {
1572 if (total > interval_data[i].total()) {
1573 for (int j = interval_print_size - 1; j > i; j -= 1) {
1574 interval_data[j] = interval_data[j-1];
1575 }
1576 interval_data[i] = id;
1577 break;
1578 }
1579 }
1580 }
1581
1582 void FlatProfiler::interval_print() {
1583 if ((interval_data[0].total() > 0)) {
1584 tty->stamp();
1585 tty->print("\t");
1586 IntervalData::print_header(tty);
1587 for (int i = 0; i < interval_print_size; i += 1) {
1588 if (interval_data[i].total() > 0) {
1589 tty->print("\t");
1590 interval_data[i].print_data(tty);
1591 }
1592 }
1593 tty->cr();
1594 }
1595 }
1596
1597 void FlatProfiler::interval_reset() {
1598 for (int i = 0; i < interval_print_size; i += 1) {
1599 interval_data[i].reset();
1600 }
1601 }
1602
1603 void ThreadProfiler::oops_do(OopClosure* f) {
1604 if (table == NULL) return;
1605
1606 for(int index = 0; index < table_size; index++) {
1607 for(ProfilerNode* node = table[index]; node; node = node->next())
1608 node->oops_do(f);
1609 }
1610 }
1611
1612 void FlatProfiler::oops_do(OopClosure* f) {
1613 if (thread_profiler != NULL) {
1614 thread_profiler->oops_do(f);
1615 } else {
1616 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
1617 ThreadProfiler* pp = tp->get_thread_profiler();
1618 if (pp != NULL) {
1619 pp->oops_do(f);
1620 }
1621 }
1622 }
1623 }