Thu, 11 Jul 2013 01:11:52 -0700
Merge
1 /*
2 * Copyright (c) 1997, 2013, 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 */
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"
34 #include "oops/symbol.hpp"
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"
41 #include "runtime/vframe.hpp"
42 #include "utilities/macros.hpp"
44 // Static fields of FlatProfiler
45 int FlatProfiler::received_gc_ticks = 0;
46 int FlatProfiler::vm_operation_ticks = 0;
47 int FlatProfiler::threads_lock_ticks = 0;
48 int FlatProfiler::class_loader_ticks = 0;
49 int FlatProfiler::extra_ticks = 0;
50 int FlatProfiler::blocked_ticks = 0;
51 int FlatProfiler::deopt_ticks = 0;
52 int FlatProfiler::unknown_ticks = 0;
53 int FlatProfiler::interpreter_ticks = 0;
54 int FlatProfiler::compiler_ticks = 0;
55 int FlatProfiler::received_ticks = 0;
56 int FlatProfiler::delivered_ticks = 0;
57 int* FlatProfiler::bytecode_ticks = NULL;
58 int* FlatProfiler::bytecode_ticks_stub = NULL;
59 int FlatProfiler::all_int_ticks = 0;
60 int FlatProfiler::all_comp_ticks = 0;
61 int FlatProfiler::all_ticks = 0;
62 bool FlatProfiler::full_profile_flag = false;
63 ThreadProfiler* FlatProfiler::thread_profiler = NULL;
64 ThreadProfiler* FlatProfiler::vm_thread_profiler = NULL;
65 FlatProfilerTask* FlatProfiler::task = NULL;
66 elapsedTimer FlatProfiler::timer;
67 int FlatProfiler::interval_ticks_previous = 0;
68 IntervalData* FlatProfiler::interval_data = NULL;
70 ThreadProfiler::ThreadProfiler() {
71 // Space for the ProfilerNodes
72 const int area_size = 1 * ProfilerNodeSize * 1024;
73 area_bottom = AllocateHeap(area_size, mtInternal);
74 area_top = area_bottom;
75 area_limit = area_bottom + area_size;
77 // ProfilerNode pointer table
78 table = NEW_C_HEAP_ARRAY(ProfilerNode*, table_size, mtInternal);
79 initialize();
80 engaged = false;
81 }
83 ThreadProfiler::~ThreadProfiler() {
84 FreeHeap(area_bottom);
85 area_bottom = NULL;
86 area_top = NULL;
87 area_limit = NULL;
88 FreeHeap(table);
89 table = NULL;
90 }
92 // Statics for ThreadProfiler
93 int ThreadProfiler::table_size = 1024;
95 int ThreadProfiler::entry(int value) {
96 value = (value > 0) ? value : -value;
97 return value % table_size;
98 }
100 ThreadProfilerMark::ThreadProfilerMark(ThreadProfilerMark::Region r) {
101 _r = r;
102 _pp = NULL;
103 assert(((r > ThreadProfilerMark::noRegion) && (r < ThreadProfilerMark::maxRegion)), "ThreadProfilerMark::Region out of bounds");
104 Thread* tp = Thread::current();
105 if (tp != NULL && tp->is_Java_thread()) {
106 JavaThread* jtp = (JavaThread*) tp;
107 ThreadProfiler* pp = jtp->get_thread_profiler();
108 _pp = pp;
109 if (pp != NULL) {
110 pp->region_flag[r] = true;
111 }
112 }
113 }
115 ThreadProfilerMark::~ThreadProfilerMark() {
116 if (_pp != NULL) {
117 _pp->region_flag[_r] = false;
118 }
119 _pp = NULL;
120 }
122 // Random other statics
123 static const int col1 = 2; // position of output column 1
124 static const int col2 = 11; // position of output column 2
125 static const int col3 = 25; // position of output column 3
126 static const int col4 = 55; // position of output column 4
129 // Used for detailed profiling of nmethods.
130 class PCRecorder : AllStatic {
131 private:
132 static int* counters;
133 static address base;
134 enum {
135 bucket_size = 16
136 };
137 static int index_for(address pc) { return (pc - base)/bucket_size; }
138 static address pc_for(int index) { return base + (index * bucket_size); }
139 static int size() {
140 return ((int)CodeCache::max_capacity())/bucket_size * BytesPerWord;
141 }
142 public:
143 static address bucket_start_for(address pc) {
144 if (counters == NULL) return NULL;
145 return pc_for(index_for(pc));
146 }
147 static int bucket_count_for(address pc) { return counters[index_for(pc)]; }
148 static void init();
149 static void record(address pc);
150 static void print();
151 static void print_blobs(CodeBlob* cb);
152 };
154 int* PCRecorder::counters = NULL;
155 address PCRecorder::base = NULL;
157 void PCRecorder::init() {
158 MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag);
159 int s = size();
160 counters = NEW_C_HEAP_ARRAY(int, s, mtInternal);
161 for (int index = 0; index < s; index++) {
162 counters[index] = 0;
163 }
164 base = CodeCache::first_address();
165 }
167 void PCRecorder::record(address pc) {
168 if (counters == NULL) return;
169 assert(CodeCache::contains(pc), "must be in CodeCache");
170 counters[index_for(pc)]++;
171 }
174 address FlatProfiler::bucket_start_for(address pc) {
175 return PCRecorder::bucket_start_for(pc);
176 }
178 int FlatProfiler::bucket_count_for(address pc) {
179 return PCRecorder::bucket_count_for(pc);
180 }
182 void PCRecorder::print() {
183 if (counters == NULL) return;
185 tty->cr();
186 tty->print_cr("Printing compiled methods with PC buckets having more than %d ticks", ProfilerPCTickThreshold);
187 tty->print_cr("===================================================================");
188 tty->cr();
190 GrowableArray<CodeBlob*>* candidates = new GrowableArray<CodeBlob*>(20);
193 int s;
194 {
195 MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag);
196 s = size();
197 }
199 for (int index = 0; index < s; index++) {
200 int count = counters[index];
201 if (count > ProfilerPCTickThreshold) {
202 address pc = pc_for(index);
203 CodeBlob* cb = CodeCache::find_blob_unsafe(pc);
204 if (cb != NULL && candidates->find(cb) < 0) {
205 candidates->push(cb);
206 }
207 }
208 }
209 for (int i = 0; i < candidates->length(); i++) {
210 print_blobs(candidates->at(i));
211 }
212 }
214 void PCRecorder::print_blobs(CodeBlob* cb) {
215 if (cb != NULL) {
216 cb->print();
217 if (cb->is_nmethod()) {
218 ((nmethod*)cb)->print_code();
219 }
220 tty->cr();
221 } else {
222 tty->print_cr("stub code");
223 }
224 }
226 class tick_counter { // holds tick info for one node
227 public:
228 int ticks_in_code;
229 int ticks_in_native;
231 tick_counter() { ticks_in_code = ticks_in_native = 0; }
232 tick_counter(int code, int native) { ticks_in_code = code; ticks_in_native = native; }
234 int total() const {
235 return (ticks_in_code + ticks_in_native);
236 }
238 void add(tick_counter* a) {
239 ticks_in_code += a->ticks_in_code;
240 ticks_in_native += a->ticks_in_native;
241 }
243 void update(TickPosition where) {
244 switch(where) {
245 case tp_code: ticks_in_code++; break;
246 case tp_native: ticks_in_native++; break;
247 }
248 }
250 void print_code(outputStream* st, int total_ticks) {
251 st->print("%5.1f%% %5d ", total() * 100.0 / total_ticks, ticks_in_code);
252 }
254 void print_native(outputStream* st) {
255 st->print(" + %5d ", ticks_in_native);
256 }
257 };
259 class ProfilerNode {
260 private:
261 ProfilerNode* _next;
262 public:
263 tick_counter ticks;
265 public:
267 void* operator new(size_t size, ThreadProfiler* tp);
268 void operator delete(void* p);
270 ProfilerNode() {
271 _next = NULL;
272 }
274 virtual ~ProfilerNode() {
275 if (_next)
276 delete _next;
277 }
279 void set_next(ProfilerNode* n) { _next = n; }
280 ProfilerNode* next() { return _next; }
282 void update(TickPosition where) { ticks.update(where);}
283 int total_ticks() { return ticks.total(); }
285 virtual bool is_interpreted() const { return false; }
286 virtual bool is_compiled() const { return false; }
287 virtual bool is_stub() const { return false; }
288 virtual bool is_runtime_stub() const{ return false; }
289 virtual void oops_do(OopClosure* f) = 0;
291 virtual bool interpreted_match(Method* m) const { return false; }
292 virtual bool compiled_match(Method* m ) const { return false; }
293 virtual bool stub_match(Method* m, const char* name) const { return false; }
294 virtual bool adapter_match() const { return false; }
295 virtual bool runtimeStub_match(const CodeBlob* stub, const char* name) const { return false; }
296 virtual bool unknown_compiled_match(const CodeBlob* cb) const { return false; }
298 static void print_title(outputStream* st) {
299 st->print(" + native");
300 st->fill_to(col3);
301 st->print("Method");
302 st->fill_to(col4);
303 st->cr();
304 }
306 static void print_total(outputStream* st, tick_counter* t, int total, const char* msg) {
307 t->print_code(st, total);
308 st->fill_to(col2);
309 t->print_native(st);
310 st->fill_to(col3);
311 st->print(msg);
312 st->cr();
313 }
315 virtual Method* method() = 0;
317 virtual void print_method_on(outputStream* st) {
318 int limit;
319 int i;
320 Method* m = method();
321 Symbol* k = m->klass_name();
322 // Print the class name with dots instead of slashes
323 limit = k->utf8_length();
324 for (i = 0 ; i < limit ; i += 1) {
325 char c = (char) k->byte_at(i);
326 if (c == '/') {
327 c = '.';
328 }
329 st->print("%c", c);
330 }
331 if (limit > 0) {
332 st->print(".");
333 }
334 Symbol* n = m->name();
335 limit = n->utf8_length();
336 for (i = 0 ; i < limit ; i += 1) {
337 char c = (char) n->byte_at(i);
338 st->print("%c", c);
339 }
340 if (Verbose || WizardMode) {
341 // Disambiguate overloaded methods
342 Symbol* sig = m->signature();
343 sig->print_symbol_on(st);
344 } else if (MethodHandles::is_signature_polymorphic(m->intrinsic_id()))
345 // compare with Method::print_short_name
346 MethodHandles::print_as_basic_type_signature_on(st, m->signature(), true);
347 }
349 virtual void print(outputStream* st, int total_ticks) {
350 ticks.print_code(st, total_ticks);
351 st->fill_to(col2);
352 ticks.print_native(st);
353 st->fill_to(col3);
354 print_method_on(st);
355 st->cr();
356 }
358 // for hashing into the table
359 static int hash(Method* method) {
360 // The point here is to try to make something fairly unique
361 // out of the fields we can read without grabbing any locks
362 // since the method may be locked when we need the hash.
363 return (
364 method->code_size() ^
365 method->max_stack() ^
366 method->max_locals() ^
367 method->size_of_parameters());
368 }
370 // for sorting
371 static int compare(ProfilerNode** a, ProfilerNode** b) {
372 return (*b)->total_ticks() - (*a)->total_ticks();
373 }
374 };
376 void* ProfilerNode::operator new(size_t size, ThreadProfiler* tp){
377 void* result = (void*) tp->area_top;
378 tp->area_top += size;
380 if (tp->area_top > tp->area_limit) {
381 fatal("flat profiler buffer overflow");
382 }
383 return result;
384 }
386 void ProfilerNode::operator delete(void* p){
387 }
389 class interpretedNode : public ProfilerNode {
390 private:
391 Method* _method;
392 oop _class_loader; // needed to keep metadata for the method alive
393 public:
394 interpretedNode(Method* method, TickPosition where) : ProfilerNode() {
395 _method = method;
396 _class_loader = method->method_holder()->class_loader();
397 update(where);
398 }
400 bool is_interpreted() const { return true; }
402 bool interpreted_match(Method* m) const {
403 return _method == m;
404 }
406 void oops_do(OopClosure* f) {
407 f->do_oop(&_class_loader);
408 }
410 Method* method() { return _method; }
412 static void print_title(outputStream* st) {
413 st->fill_to(col1);
414 st->print("%11s", "Interpreted");
415 ProfilerNode::print_title(st);
416 }
418 void print(outputStream* st, int total_ticks) {
419 ProfilerNode::print(st, total_ticks);
420 }
422 void print_method_on(outputStream* st) {
423 ProfilerNode::print_method_on(st);
424 MethodCounters* mcs = method()->method_counters();
425 if (Verbose && mcs != NULL) mcs->invocation_counter()->print_short();
426 }
427 };
429 class compiledNode : public ProfilerNode {
430 private:
431 Method* _method;
432 oop _class_loader; // needed to keep metadata for the method alive
433 public:
434 compiledNode(Method* method, TickPosition where) : ProfilerNode() {
435 _method = method;
436 _class_loader = method->method_holder()->class_loader();
437 update(where);
438 }
439 bool is_compiled() const { return true; }
441 bool compiled_match(Method* m) const {
442 return _method == m;
443 }
445 Method* method() { return _method; }
447 void oops_do(OopClosure* f) {
448 f->do_oop(&_class_loader);
449 }
451 static void print_title(outputStream* st) {
452 st->fill_to(col1);
453 st->print("%11s", "Compiled");
454 ProfilerNode::print_title(st);
455 }
457 void print(outputStream* st, int total_ticks) {
458 ProfilerNode::print(st, total_ticks);
459 }
461 void print_method_on(outputStream* st) {
462 ProfilerNode::print_method_on(st);
463 }
464 };
466 class stubNode : public ProfilerNode {
467 private:
468 Method* _method;
469 oop _class_loader; // needed to keep metadata for the method alive
470 const char* _symbol; // The name of the nearest VM symbol (for +ProfileVM). Points to a unique string
471 public:
472 stubNode(Method* method, const char* name, TickPosition where) : ProfilerNode() {
473 _method = method;
474 _class_loader = method->method_holder()->class_loader();
475 _symbol = name;
476 update(where);
477 }
479 bool is_stub() const { return true; }
481 void oops_do(OopClosure* f) {
482 f->do_oop(&_class_loader);
483 }
485 bool stub_match(Method* m, const char* name) const {
486 return (_method == m) && (_symbol == name);
487 }
489 Method* method() { return _method; }
491 static void print_title(outputStream* st) {
492 st->fill_to(col1);
493 st->print("%11s", "Stub");
494 ProfilerNode::print_title(st);
495 }
497 void print(outputStream* st, int total_ticks) {
498 ProfilerNode::print(st, total_ticks);
499 }
501 void print_method_on(outputStream* st) {
502 ProfilerNode::print_method_on(st);
503 print_symbol_on(st);
504 }
506 void print_symbol_on(outputStream* st) {
507 if(_symbol) {
508 st->print(" (%s)", _symbol);
509 }
510 }
511 };
513 class adapterNode : public ProfilerNode {
514 public:
515 adapterNode(TickPosition where) : ProfilerNode() {
516 update(where);
517 }
518 bool is_compiled() const { return true; }
520 bool adapter_match() const { return true; }
522 Method* method() { return NULL; }
524 void oops_do(OopClosure* f) {
525 ;
526 }
528 void print(outputStream* st, int total_ticks) {
529 ProfilerNode::print(st, total_ticks);
530 }
532 void print_method_on(outputStream* st) {
533 st->print("%s", "adapters");
534 }
535 };
537 class runtimeStubNode : public ProfilerNode {
538 private:
539 const CodeBlob* _stub;
540 const char* _symbol; // The name of the nearest VM symbol when ProfileVM is on. Points to a unique string.
541 public:
542 runtimeStubNode(const CodeBlob* stub, const char* name, TickPosition where) : ProfilerNode(), _stub(stub), _symbol(name) {
543 assert(stub->is_runtime_stub(), "wrong code blob");
544 update(where);
545 }
547 bool is_runtime_stub() const { return true; }
549 bool runtimeStub_match(const CodeBlob* stub, const char* name) const {
550 assert(stub->is_runtime_stub(), "wrong code blob");
551 return ((RuntimeStub*)_stub)->entry_point() == ((RuntimeStub*)stub)->entry_point() &&
552 (_symbol == name);
553 }
555 Method* method() { return NULL; }
557 static void print_title(outputStream* st) {
558 st->fill_to(col1);
559 st->print("%11s", "Runtime stub");
560 ProfilerNode::print_title(st);
561 }
563 void oops_do(OopClosure* f) {
564 ;
565 }
567 void print(outputStream* st, int total_ticks) {
568 ProfilerNode::print(st, total_ticks);
569 }
571 void print_method_on(outputStream* st) {
572 st->print("%s", ((RuntimeStub*)_stub)->name());
573 print_symbol_on(st);
574 }
576 void print_symbol_on(outputStream* st) {
577 if(_symbol) {
578 st->print(" (%s)", _symbol);
579 }
580 }
581 };
584 class unknown_compiledNode : public ProfilerNode {
585 const char *_name;
586 public:
587 unknown_compiledNode(const CodeBlob* cb, TickPosition where) : ProfilerNode() {
588 if ( cb->is_buffer_blob() )
589 _name = ((BufferBlob*)cb)->name();
590 else
591 _name = ((SingletonBlob*)cb)->name();
592 update(where);
593 }
594 bool is_compiled() const { return true; }
596 bool unknown_compiled_match(const CodeBlob* cb) const {
597 if ( cb->is_buffer_blob() )
598 return !strcmp(((BufferBlob*)cb)->name(), _name);
599 else
600 return !strcmp(((SingletonBlob*)cb)->name(), _name);
601 }
603 Method* method() { return NULL; }
605 void oops_do(OopClosure* f) {
606 ;
607 }
609 void print(outputStream* st, int total_ticks) {
610 ProfilerNode::print(st, total_ticks);
611 }
613 void print_method_on(outputStream* st) {
614 st->print("%s", _name);
615 }
616 };
618 class vmNode : public ProfilerNode {
619 private:
620 const char* _name; // "optional" name obtained by os means such as dll lookup
621 public:
622 vmNode(const TickPosition where) : ProfilerNode() {
623 _name = NULL;
624 update(where);
625 }
627 vmNode(const char* name, const TickPosition where) : ProfilerNode() {
628 _name = name;
629 update(where);
630 }
632 const char *name() const { return _name; }
633 bool is_compiled() const { return true; }
635 bool vm_match(const char* name) const { return strcmp(name, _name) == 0; }
637 Method* method() { return NULL; }
639 static int hash(const char* name){
640 // Compute a simple hash
641 const char* cp = name;
642 int h = 0;
644 if(name != NULL){
645 while(*cp != '\0'){
646 h = (h << 1) ^ *cp;
647 cp++;
648 }
649 }
650 return h;
651 }
653 void oops_do(OopClosure* f) {
654 ;
655 }
657 void print(outputStream* st, int total_ticks) {
658 ProfilerNode::print(st, total_ticks);
659 }
661 void print_method_on(outputStream* st) {
662 if(_name==NULL){
663 st->print("%s", "unknown code");
664 }
665 else {
666 st->print("%s", _name);
667 }
668 }
669 };
671 void ThreadProfiler::interpreted_update(Method* method, TickPosition where) {
672 int index = entry(ProfilerNode::hash(method));
673 if (!table[index]) {
674 table[index] = new (this) interpretedNode(method, where);
675 } else {
676 ProfilerNode* prev = table[index];
677 for(ProfilerNode* node = prev; node; node = node->next()) {
678 if (node->interpreted_match(method)) {
679 node->update(where);
680 return;
681 }
682 prev = node;
683 }
684 prev->set_next(new (this) interpretedNode(method, where));
685 }
686 }
688 void ThreadProfiler::compiled_update(Method* method, TickPosition where) {
689 int index = entry(ProfilerNode::hash(method));
690 if (!table[index]) {
691 table[index] = new (this) compiledNode(method, where);
692 } else {
693 ProfilerNode* prev = table[index];
694 for(ProfilerNode* node = prev; node; node = node->next()) {
695 if (node->compiled_match(method)) {
696 node->update(where);
697 return;
698 }
699 prev = node;
700 }
701 prev->set_next(new (this) compiledNode(method, where));
702 }
703 }
705 void ThreadProfiler::stub_update(Method* method, const char* name, TickPosition where) {
706 int index = entry(ProfilerNode::hash(method));
707 if (!table[index]) {
708 table[index] = new (this) stubNode(method, name, where);
709 } else {
710 ProfilerNode* prev = table[index];
711 for(ProfilerNode* node = prev; node; node = node->next()) {
712 if (node->stub_match(method, name)) {
713 node->update(where);
714 return;
715 }
716 prev = node;
717 }
718 prev->set_next(new (this) stubNode(method, name, where));
719 }
720 }
722 void ThreadProfiler::adapter_update(TickPosition where) {
723 int index = 0;
724 if (!table[index]) {
725 table[index] = new (this) adapterNode(where);
726 } else {
727 ProfilerNode* prev = table[index];
728 for(ProfilerNode* node = prev; node; node = node->next()) {
729 if (node->adapter_match()) {
730 node->update(where);
731 return;
732 }
733 prev = node;
734 }
735 prev->set_next(new (this) adapterNode(where));
736 }
737 }
739 void ThreadProfiler::runtime_stub_update(const CodeBlob* stub, const char* name, TickPosition where) {
740 int index = 0;
741 if (!table[index]) {
742 table[index] = new (this) runtimeStubNode(stub, name, where);
743 } else {
744 ProfilerNode* prev = table[index];
745 for(ProfilerNode* node = prev; node; node = node->next()) {
746 if (node->runtimeStub_match(stub, name)) {
747 node->update(where);
748 return;
749 }
750 prev = node;
751 }
752 prev->set_next(new (this) runtimeStubNode(stub, name, where));
753 }
754 }
757 void ThreadProfiler::unknown_compiled_update(const CodeBlob* cb, TickPosition where) {
758 int index = 0;
759 if (!table[index]) {
760 table[index] = new (this) unknown_compiledNode(cb, where);
761 } else {
762 ProfilerNode* prev = table[index];
763 for(ProfilerNode* node = prev; node; node = node->next()) {
764 if (node->unknown_compiled_match(cb)) {
765 node->update(where);
766 return;
767 }
768 prev = node;
769 }
770 prev->set_next(new (this) unknown_compiledNode(cb, where));
771 }
772 }
774 void ThreadProfiler::vm_update(TickPosition where) {
775 vm_update(NULL, where);
776 }
778 void ThreadProfiler::vm_update(const char* name, TickPosition where) {
779 int index = entry(vmNode::hash(name));
780 assert(index >= 0, "Must be positive");
781 // Note that we call strdup below since the symbol may be resource allocated
782 if (!table[index]) {
783 table[index] = new (this) vmNode(os::strdup(name), where);
784 } else {
785 ProfilerNode* prev = table[index];
786 for(ProfilerNode* node = prev; node; node = node->next()) {
787 if (((vmNode *)node)->vm_match(name)) {
788 node->update(where);
789 return;
790 }
791 prev = node;
792 }
793 prev->set_next(new (this) vmNode(os::strdup(name), where));
794 }
795 }
798 class FlatProfilerTask : public PeriodicTask {
799 public:
800 FlatProfilerTask(int interval_time) : PeriodicTask(interval_time) {}
801 void task();
802 };
804 void FlatProfiler::record_vm_operation() {
805 if (Universe::heap()->is_gc_active()) {
806 FlatProfiler::received_gc_ticks += 1;
807 return;
808 }
810 if (DeoptimizationMarker::is_active()) {
811 FlatProfiler::deopt_ticks += 1;
812 return;
813 }
815 FlatProfiler::vm_operation_ticks += 1;
816 }
818 void FlatProfiler::record_vm_tick() {
819 // Profile the VM Thread itself if needed
820 // This is done without getting the Threads_lock and we can go deep
821 // inside Safepoint, etc.
822 if( ProfileVM ) {
823 ResourceMark rm;
824 ExtendedPC epc;
825 const char *name = NULL;
826 char buf[256];
827 buf[0] = '\0';
829 vm_thread_profiler->inc_thread_ticks();
831 // Get a snapshot of a current VMThread pc (and leave it running!)
832 // The call may fail if, for instance the VM thread is interrupted while
833 // holding the Interrupt_lock or for other reasons.
834 epc = os::get_thread_pc(VMThread::vm_thread());
835 if(epc.pc() != NULL) {
836 if (os::dll_address_to_function_name(epc.pc(), buf, sizeof(buf), NULL)) {
837 name = buf;
838 }
839 }
840 if (name != NULL) {
841 vm_thread_profiler->vm_update(name, tp_native);
842 }
843 }
844 }
846 void FlatProfiler::record_thread_ticks() {
848 int maxthreads, suspendedthreadcount;
849 JavaThread** threadsList;
850 bool interval_expired = false;
852 if (ProfileIntervals &&
853 (FlatProfiler::received_ticks >= interval_ticks_previous + ProfileIntervalsTicks)) {
854 interval_expired = true;
855 interval_ticks_previous = FlatProfiler::received_ticks;
856 }
858 // Try not to wait for the Threads_lock
859 if (Threads_lock->try_lock()) {
860 { // Threads_lock scope
861 maxthreads = Threads::number_of_threads();
862 threadsList = NEW_C_HEAP_ARRAY(JavaThread *, maxthreads, mtInternal);
863 suspendedthreadcount = 0;
864 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
865 if (tp->is_Compiler_thread()) {
866 // Only record ticks for active compiler threads
867 CompilerThread* cthread = (CompilerThread*)tp;
868 if (cthread->task() != NULL) {
869 // The compiler is active. If we need to access any of the fields
870 // of the compiler task we should suspend the CompilerThread first.
871 FlatProfiler::compiler_ticks += 1;
872 continue;
873 }
874 }
876 // First externally suspend all threads by marking each for
877 // external suspension - so it will stop at its next transition
878 // Then do a safepoint
879 ThreadProfiler* pp = tp->get_thread_profiler();
880 if (pp != NULL && pp->engaged) {
881 MutexLockerEx ml(tp->SR_lock(), Mutex::_no_safepoint_check_flag);
882 if (!tp->is_external_suspend() && !tp->is_exiting()) {
883 tp->set_external_suspend();
884 threadsList[suspendedthreadcount++] = tp;
885 }
886 }
887 }
888 Threads_lock->unlock();
889 }
890 // Suspend each thread. This call should just return
891 // for any threads that have already self-suspended
892 // Net result should be one safepoint
893 for (int j = 0; j < suspendedthreadcount; j++) {
894 JavaThread *tp = threadsList[j];
895 if (tp) {
896 tp->java_suspend();
897 }
898 }
900 // We are responsible for resuming any thread on this list
901 for (int i = 0; i < suspendedthreadcount; i++) {
902 JavaThread *tp = threadsList[i];
903 if (tp) {
904 ThreadProfiler* pp = tp->get_thread_profiler();
905 if (pp != NULL && pp->engaged) {
906 HandleMark hm;
907 FlatProfiler::delivered_ticks += 1;
908 if (interval_expired) {
909 FlatProfiler::interval_record_thread(pp);
910 }
911 // This is the place where we check to see if a user thread is
912 // blocked waiting for compilation.
913 if (tp->blocked_on_compilation()) {
914 pp->compiler_ticks += 1;
915 pp->interval_data_ref()->inc_compiling();
916 } else {
917 pp->record_tick(tp);
918 }
919 }
920 MutexLocker ml(Threads_lock);
921 tp->java_resume();
922 }
923 }
924 if (interval_expired) {
925 FlatProfiler::interval_print();
926 FlatProfiler::interval_reset();
927 }
928 } else {
929 // Couldn't get the threads lock, just record that rather than blocking
930 FlatProfiler::threads_lock_ticks += 1;
931 }
933 }
935 void FlatProfilerTask::task() {
936 FlatProfiler::received_ticks += 1;
938 if (ProfileVM) {
939 FlatProfiler::record_vm_tick();
940 }
942 VM_Operation* op = VMThread::vm_operation();
943 if (op != NULL) {
944 FlatProfiler::record_vm_operation();
945 if (SafepointSynchronize::is_at_safepoint()) {
946 return;
947 }
948 }
949 FlatProfiler::record_thread_ticks();
950 }
952 void ThreadProfiler::record_interpreted_tick(JavaThread* thread, frame fr, TickPosition where, int* ticks) {
953 FlatProfiler::all_int_ticks++;
954 if (!FlatProfiler::full_profile()) {
955 return;
956 }
958 if (!fr.is_interpreted_frame_valid(thread)) {
959 // tick came at a bad time
960 interpreter_ticks += 1;
961 FlatProfiler::interpreter_ticks += 1;
962 return;
963 }
965 // The frame has been fully validated so we can trust the method and bci
967 Method* method = *fr.interpreter_frame_method_addr();
969 interpreted_update(method, where);
971 // update byte code table
972 InterpreterCodelet* desc = Interpreter::codelet_containing(fr.pc());
973 if (desc != NULL && desc->bytecode() >= 0) {
974 ticks[desc->bytecode()]++;
975 }
976 }
978 void ThreadProfiler::record_compiled_tick(JavaThread* thread, frame fr, TickPosition where) {
979 const char *name = NULL;
980 TickPosition localwhere = where;
982 FlatProfiler::all_comp_ticks++;
983 if (!FlatProfiler::full_profile()) return;
985 CodeBlob* cb = fr.cb();
987 // For runtime stubs, record as native rather than as compiled
988 if (cb->is_runtime_stub()) {
989 RegisterMap map(thread, false);
990 fr = fr.sender(&map);
991 cb = fr.cb();
992 localwhere = tp_native;
993 }
994 Method* method = (cb->is_nmethod()) ? ((nmethod *)cb)->method() :
995 (Method*)NULL;
997 if (method == NULL) {
998 if (cb->is_runtime_stub())
999 runtime_stub_update(cb, name, localwhere);
1000 else
1001 unknown_compiled_update(cb, localwhere);
1002 }
1003 else {
1004 if (method->is_native()) {
1005 stub_update(method, name, localwhere);
1006 } else {
1007 compiled_update(method, localwhere);
1008 }
1009 }
1010 }
1012 extern "C" void find(int x);
1015 void ThreadProfiler::record_tick_for_running_frame(JavaThread* thread, frame fr) {
1016 // The tick happened in real code -> non VM code
1017 if (fr.is_interpreted_frame()) {
1018 interval_data_ref()->inc_interpreted();
1019 record_interpreted_tick(thread, fr, tp_code, FlatProfiler::bytecode_ticks);
1020 return;
1021 }
1023 if (CodeCache::contains(fr.pc())) {
1024 interval_data_ref()->inc_compiled();
1025 PCRecorder::record(fr.pc());
1026 record_compiled_tick(thread, fr, tp_code);
1027 return;
1028 }
1030 if (VtableStubs::stub_containing(fr.pc()) != NULL) {
1031 unknown_ticks_array[ut_vtable_stubs] += 1;
1032 return;
1033 }
1035 frame caller = fr.profile_find_Java_sender_frame(thread);
1037 if (caller.sp() != NULL && caller.pc() != NULL) {
1038 record_tick_for_calling_frame(thread, caller);
1039 return;
1040 }
1042 unknown_ticks_array[ut_running_frame] += 1;
1043 FlatProfiler::unknown_ticks += 1;
1044 }
1046 void ThreadProfiler::record_tick_for_calling_frame(JavaThread* thread, frame fr) {
1047 // The tick happened in VM code
1048 interval_data_ref()->inc_native();
1049 if (fr.is_interpreted_frame()) {
1050 record_interpreted_tick(thread, fr, tp_native, FlatProfiler::bytecode_ticks_stub);
1051 return;
1052 }
1053 if (CodeCache::contains(fr.pc())) {
1054 record_compiled_tick(thread, fr, tp_native);
1055 return;
1056 }
1058 frame caller = fr.profile_find_Java_sender_frame(thread);
1060 if (caller.sp() != NULL && caller.pc() != NULL) {
1061 record_tick_for_calling_frame(thread, caller);
1062 return;
1063 }
1065 unknown_ticks_array[ut_calling_frame] += 1;
1066 FlatProfiler::unknown_ticks += 1;
1067 }
1069 void ThreadProfiler::record_tick(JavaThread* thread) {
1070 FlatProfiler::all_ticks++;
1071 thread_ticks += 1;
1073 // Here's another way to track global state changes.
1074 // When the class loader starts it marks the ThreadProfiler to tell it it is in the class loader
1075 // and we check that here.
1076 // This is more direct, and more than one thread can be in the class loader at a time,
1077 // but it does mean the class loader has to know about the profiler.
1078 if (region_flag[ThreadProfilerMark::classLoaderRegion]) {
1079 class_loader_ticks += 1;
1080 FlatProfiler::class_loader_ticks += 1;
1081 return;
1082 } else if (region_flag[ThreadProfilerMark::extraRegion]) {
1083 extra_ticks += 1;
1084 FlatProfiler::extra_ticks += 1;
1085 return;
1086 }
1087 // Note that the WatcherThread can now stop for safepoints
1088 uint32_t debug_bits = 0;
1089 if (!thread->wait_for_ext_suspend_completion(SuspendRetryCount,
1090 SuspendRetryDelay, &debug_bits)) {
1091 unknown_ticks_array[ut_unknown_thread_state] += 1;
1092 FlatProfiler::unknown_ticks += 1;
1093 return;
1094 }
1096 frame fr;
1098 switch (thread->thread_state()) {
1099 case _thread_in_native:
1100 case _thread_in_native_trans:
1101 case _thread_in_vm:
1102 case _thread_in_vm_trans:
1103 if (thread->profile_last_Java_frame(&fr)) {
1104 if (fr.is_runtime_frame()) {
1105 RegisterMap map(thread, false);
1106 fr = fr.sender(&map);
1107 }
1108 record_tick_for_calling_frame(thread, fr);
1109 } else {
1110 unknown_ticks_array[ut_no_last_Java_frame] += 1;
1111 FlatProfiler::unknown_ticks += 1;
1112 }
1113 break;
1114 // handle_special_runtime_exit_condition self-suspends threads in Java
1115 case _thread_in_Java:
1116 case _thread_in_Java_trans:
1117 if (thread->profile_last_Java_frame(&fr)) {
1118 if (fr.is_safepoint_blob_frame()) {
1119 RegisterMap map(thread, false);
1120 fr = fr.sender(&map);
1121 }
1122 record_tick_for_running_frame(thread, fr);
1123 } else {
1124 unknown_ticks_array[ut_no_last_Java_frame] += 1;
1125 FlatProfiler::unknown_ticks += 1;
1126 }
1127 break;
1128 case _thread_blocked:
1129 case _thread_blocked_trans:
1130 if (thread->osthread() && thread->osthread()->get_state() == RUNNABLE) {
1131 if (thread->profile_last_Java_frame(&fr)) {
1132 if (fr.is_safepoint_blob_frame()) {
1133 RegisterMap map(thread, false);
1134 fr = fr.sender(&map);
1135 record_tick_for_running_frame(thread, fr);
1136 } else {
1137 record_tick_for_calling_frame(thread, fr);
1138 }
1139 } else {
1140 unknown_ticks_array[ut_no_last_Java_frame] += 1;
1141 FlatProfiler::unknown_ticks += 1;
1142 }
1143 } else {
1144 blocked_ticks += 1;
1145 FlatProfiler::blocked_ticks += 1;
1146 }
1147 break;
1148 case _thread_uninitialized:
1149 case _thread_new:
1150 // not used, included for completeness
1151 case _thread_new_trans:
1152 unknown_ticks_array[ut_no_last_Java_frame] += 1;
1153 FlatProfiler::unknown_ticks += 1;
1154 break;
1155 default:
1156 unknown_ticks_array[ut_unknown_thread_state] += 1;
1157 FlatProfiler::unknown_ticks += 1;
1158 break;
1159 }
1160 return;
1161 }
1163 void ThreadProfiler::engage() {
1164 engaged = true;
1165 timer.start();
1166 }
1168 void ThreadProfiler::disengage() {
1169 engaged = false;
1170 timer.stop();
1171 }
1173 void ThreadProfiler::initialize() {
1174 for (int index = 0; index < table_size; index++) {
1175 table[index] = NULL;
1176 }
1177 thread_ticks = 0;
1178 blocked_ticks = 0;
1179 compiler_ticks = 0;
1180 interpreter_ticks = 0;
1181 for (int ut = 0; ut < ut_end; ut += 1) {
1182 unknown_ticks_array[ut] = 0;
1183 }
1184 region_flag[ThreadProfilerMark::classLoaderRegion] = false;
1185 class_loader_ticks = 0;
1186 region_flag[ThreadProfilerMark::extraRegion] = false;
1187 extra_ticks = 0;
1188 timer.start();
1189 interval_data_ref()->reset();
1190 }
1192 void ThreadProfiler::reset() {
1193 timer.stop();
1194 if (table != NULL) {
1195 for (int index = 0; index < table_size; index++) {
1196 ProfilerNode* n = table[index];
1197 if (n != NULL) {
1198 delete n;
1199 }
1200 }
1201 }
1202 initialize();
1203 }
1205 void FlatProfiler::allocate_table() {
1206 { // Bytecode table
1207 bytecode_ticks = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal);
1208 bytecode_ticks_stub = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal);
1209 for(int index = 0; index < Bytecodes::number_of_codes; index++) {
1210 bytecode_ticks[index] = 0;
1211 bytecode_ticks_stub[index] = 0;
1212 }
1213 }
1215 if (ProfilerRecordPC) PCRecorder::init();
1217 interval_data = NEW_C_HEAP_ARRAY(IntervalData, interval_print_size, mtInternal);
1218 FlatProfiler::interval_reset();
1219 }
1221 void FlatProfiler::engage(JavaThread* mainThread, bool fullProfile) {
1222 full_profile_flag = fullProfile;
1223 if (bytecode_ticks == NULL) {
1224 allocate_table();
1225 }
1226 if(ProfileVM && (vm_thread_profiler == NULL)){
1227 vm_thread_profiler = new ThreadProfiler();
1228 }
1229 if (task == NULL) {
1230 task = new FlatProfilerTask(WatcherThread::delay_interval);
1231 task->enroll();
1232 }
1233 timer.start();
1234 if (mainThread != NULL) {
1235 // When mainThread was created, it might not have a ThreadProfiler
1236 ThreadProfiler* pp = mainThread->get_thread_profiler();
1237 if (pp == NULL) {
1238 mainThread->set_thread_profiler(new ThreadProfiler());
1239 } else {
1240 pp->reset();
1241 }
1242 mainThread->get_thread_profiler()->engage();
1243 }
1244 // This is where we would assign thread_profiler
1245 // if we wanted only one thread_profiler for all threads.
1246 thread_profiler = NULL;
1247 }
1249 void FlatProfiler::disengage() {
1250 if (!task) {
1251 return;
1252 }
1253 timer.stop();
1254 task->disenroll();
1255 delete task;
1256 task = NULL;
1257 if (thread_profiler != NULL) {
1258 thread_profiler->disengage();
1259 } else {
1260 MutexLocker tl(Threads_lock);
1261 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
1262 ThreadProfiler* pp = tp->get_thread_profiler();
1263 if (pp != NULL) {
1264 pp->disengage();
1265 }
1266 }
1267 }
1268 }
1270 void FlatProfiler::reset() {
1271 if (task) {
1272 disengage();
1273 }
1275 class_loader_ticks = 0;
1276 extra_ticks = 0;
1277 received_gc_ticks = 0;
1278 vm_operation_ticks = 0;
1279 compiler_ticks = 0;
1280 deopt_ticks = 0;
1281 interpreter_ticks = 0;
1282 blocked_ticks = 0;
1283 unknown_ticks = 0;
1284 received_ticks = 0;
1285 delivered_ticks = 0;
1286 timer.stop();
1287 }
1289 bool FlatProfiler::is_active() {
1290 return task != NULL;
1291 }
1293 void FlatProfiler::print_byte_code_statistics() {
1294 GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200);
1296 tty->print_cr(" Bytecode ticks:");
1297 for (int index = 0; index < Bytecodes::number_of_codes; index++) {
1298 if (FlatProfiler::bytecode_ticks[index] > 0 || FlatProfiler::bytecode_ticks_stub[index] > 0) {
1299 tty->print_cr(" %4d %4d = %s",
1300 FlatProfiler::bytecode_ticks[index],
1301 FlatProfiler::bytecode_ticks_stub[index],
1302 Bytecodes::name( (Bytecodes::Code) index));
1303 }
1304 }
1305 tty->cr();
1306 }
1308 void print_ticks(const char* title, int ticks, int total) {
1309 if (ticks > 0) {
1310 tty->print("%5.1f%% %5d", ticks * 100.0 / total, ticks);
1311 tty->fill_to(col3);
1312 tty->print("%s", title);
1313 tty->cr();
1314 }
1315 }
1317 void ThreadProfiler::print(const char* thread_name) {
1318 ResourceMark rm;
1319 MutexLocker ppl(ProfilePrint_lock);
1320 int index = 0; // Declared outside for loops for portability
1322 if (table == NULL) {
1323 return;
1324 }
1326 if (thread_ticks <= 0) {
1327 return;
1328 }
1330 const char* title = "too soon to tell";
1331 double secs = timer.seconds();
1333 GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200);
1334 for(index = 0; index < table_size; index++) {
1335 for(ProfilerNode* node = table[index]; node; node = node->next())
1336 array->append(node);
1337 }
1339 array->sort(&ProfilerNode::compare);
1341 // compute total (sanity check)
1342 int active =
1343 class_loader_ticks +
1344 compiler_ticks +
1345 interpreter_ticks +
1346 unknown_ticks();
1347 for (index = 0; index < array->length(); index++) {
1348 active += array->at(index)->ticks.total();
1349 }
1350 int total = active + blocked_ticks;
1352 tty->cr();
1353 tty->print_cr("Flat profile of %3.2f secs (%d total ticks): %s", secs, total, thread_name);
1354 if (total != thread_ticks) {
1355 print_ticks("Lost ticks", thread_ticks-total, thread_ticks);
1356 }
1357 tty->cr();
1359 // print interpreted methods
1360 tick_counter interpreted_ticks;
1361 bool has_interpreted_ticks = false;
1362 int print_count = 0;
1363 for (index = 0; index < array->length(); index++) {
1364 ProfilerNode* n = array->at(index);
1365 if (n->is_interpreted()) {
1366 interpreted_ticks.add(&n->ticks);
1367 if (!has_interpreted_ticks) {
1368 interpretedNode::print_title(tty);
1369 has_interpreted_ticks = true;
1370 }
1371 if (print_count++ < ProfilerNumberOfInterpretedMethods) {
1372 n->print(tty, active);
1373 }
1374 }
1375 }
1376 if (has_interpreted_ticks) {
1377 if (print_count <= ProfilerNumberOfInterpretedMethods) {
1378 title = "Total interpreted";
1379 } else {
1380 title = "Total interpreted (including elided)";
1381 }
1382 interpretedNode::print_total(tty, &interpreted_ticks, active, title);
1383 tty->cr();
1384 }
1386 // print compiled methods
1387 tick_counter compiled_ticks;
1388 bool has_compiled_ticks = false;
1389 print_count = 0;
1390 for (index = 0; index < array->length(); index++) {
1391 ProfilerNode* n = array->at(index);
1392 if (n->is_compiled()) {
1393 compiled_ticks.add(&n->ticks);
1394 if (!has_compiled_ticks) {
1395 compiledNode::print_title(tty);
1396 has_compiled_ticks = true;
1397 }
1398 if (print_count++ < ProfilerNumberOfCompiledMethods) {
1399 n->print(tty, active);
1400 }
1401 }
1402 }
1403 if (has_compiled_ticks) {
1404 if (print_count <= ProfilerNumberOfCompiledMethods) {
1405 title = "Total compiled";
1406 } else {
1407 title = "Total compiled (including elided)";
1408 }
1409 compiledNode::print_total(tty, &compiled_ticks, active, title);
1410 tty->cr();
1411 }
1413 // print stub methods
1414 tick_counter stub_ticks;
1415 bool has_stub_ticks = false;
1416 print_count = 0;
1417 for (index = 0; index < array->length(); index++) {
1418 ProfilerNode* n = array->at(index);
1419 if (n->is_stub()) {
1420 stub_ticks.add(&n->ticks);
1421 if (!has_stub_ticks) {
1422 stubNode::print_title(tty);
1423 has_stub_ticks = true;
1424 }
1425 if (print_count++ < ProfilerNumberOfStubMethods) {
1426 n->print(tty, active);
1427 }
1428 }
1429 }
1430 if (has_stub_ticks) {
1431 if (print_count <= ProfilerNumberOfStubMethods) {
1432 title = "Total stub";
1433 } else {
1434 title = "Total stub (including elided)";
1435 }
1436 stubNode::print_total(tty, &stub_ticks, active, title);
1437 tty->cr();
1438 }
1440 // print runtime stubs
1441 tick_counter runtime_stub_ticks;
1442 bool has_runtime_stub_ticks = false;
1443 print_count = 0;
1444 for (index = 0; index < array->length(); index++) {
1445 ProfilerNode* n = array->at(index);
1446 if (n->is_runtime_stub()) {
1447 runtime_stub_ticks.add(&n->ticks);
1448 if (!has_runtime_stub_ticks) {
1449 runtimeStubNode::print_title(tty);
1450 has_runtime_stub_ticks = true;
1451 }
1452 if (print_count++ < ProfilerNumberOfRuntimeStubNodes) {
1453 n->print(tty, active);
1454 }
1455 }
1456 }
1457 if (has_runtime_stub_ticks) {
1458 if (print_count <= ProfilerNumberOfRuntimeStubNodes) {
1459 title = "Total runtime stubs";
1460 } else {
1461 title = "Total runtime stubs (including elided)";
1462 }
1463 runtimeStubNode::print_total(tty, &runtime_stub_ticks, active, title);
1464 tty->cr();
1465 }
1467 if (blocked_ticks + class_loader_ticks + interpreter_ticks + compiler_ticks + unknown_ticks() != 0) {
1468 tty->fill_to(col1);
1469 tty->print_cr("Thread-local ticks:");
1470 print_ticks("Blocked (of total)", blocked_ticks, total);
1471 print_ticks("Class loader", class_loader_ticks, active);
1472 print_ticks("Extra", extra_ticks, active);
1473 print_ticks("Interpreter", interpreter_ticks, active);
1474 print_ticks("Compilation", compiler_ticks, active);
1475 print_ticks("Unknown: vtable stubs", unknown_ticks_array[ut_vtable_stubs], active);
1476 print_ticks("Unknown: null method", unknown_ticks_array[ut_null_method], active);
1477 print_ticks("Unknown: running frame", unknown_ticks_array[ut_running_frame], active);
1478 print_ticks("Unknown: calling frame", unknown_ticks_array[ut_calling_frame], active);
1479 print_ticks("Unknown: no pc", unknown_ticks_array[ut_no_pc], active);
1480 print_ticks("Unknown: no last frame", unknown_ticks_array[ut_no_last_Java_frame], active);
1481 print_ticks("Unknown: thread_state", unknown_ticks_array[ut_unknown_thread_state], active);
1482 tty->cr();
1483 }
1485 if (WizardMode) {
1486 tty->print_cr("Node area used: %dKb", (area_top - area_bottom) / 1024);
1487 }
1488 reset();
1489 }
1491 /*
1492 ThreadProfiler::print_unknown(){
1493 if (table == NULL) {
1494 return;
1495 }
1497 if (thread_ticks <= 0) {
1498 return;
1499 }
1500 } */
1502 void FlatProfiler::print(int unused) {
1503 ResourceMark rm;
1504 if (thread_profiler != NULL) {
1505 thread_profiler->print("All threads");
1506 } else {
1507 MutexLocker tl(Threads_lock);
1508 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
1509 ThreadProfiler* pp = tp->get_thread_profiler();
1510 if (pp != NULL) {
1511 pp->print(tp->get_thread_name());
1512 }
1513 }
1514 }
1516 if (ProfilerPrintByteCodeStatistics) {
1517 print_byte_code_statistics();
1518 }
1520 if (non_method_ticks() > 0) {
1521 tty->cr();
1522 tty->print_cr("Global summary of %3.2f seconds:", timer.seconds());
1523 print_ticks("Received ticks", received_ticks, received_ticks);
1524 print_ticks("Received GC ticks", received_gc_ticks, received_ticks);
1525 print_ticks("Compilation", compiler_ticks, received_ticks);
1526 print_ticks("Deoptimization", deopt_ticks, received_ticks);
1527 print_ticks("Other VM operations", vm_operation_ticks, received_ticks);
1528 #ifndef PRODUCT
1529 print_ticks("Blocked ticks", blocked_ticks, received_ticks);
1530 print_ticks("Threads_lock blocks", threads_lock_ticks, received_ticks);
1531 print_ticks("Delivered ticks", delivered_ticks, received_ticks);
1532 print_ticks("All ticks", all_ticks, received_ticks);
1533 #endif
1534 print_ticks("Class loader", class_loader_ticks, received_ticks);
1535 print_ticks("Extra ", extra_ticks, received_ticks);
1536 print_ticks("Interpreter", interpreter_ticks, received_ticks);
1537 print_ticks("Unknown code", unknown_ticks, received_ticks);
1538 }
1540 PCRecorder::print();
1542 if(ProfileVM){
1543 tty->cr();
1544 vm_thread_profiler->print("VM Thread");
1545 }
1546 }
1548 void IntervalData::print_header(outputStream* st) {
1549 st->print("i/c/n/g");
1550 }
1552 void IntervalData::print_data(outputStream* st) {
1553 st->print("%d/%d/%d/%d", interpreted(), compiled(), native(), compiling());
1554 }
1556 void FlatProfiler::interval_record_thread(ThreadProfiler* tp) {
1557 IntervalData id = tp->interval_data();
1558 int total = id.total();
1559 tp->interval_data_ref()->reset();
1561 // Insertion sort the data, if it's relevant.
1562 for (int i = 0; i < interval_print_size; i += 1) {
1563 if (total > interval_data[i].total()) {
1564 for (int j = interval_print_size - 1; j > i; j -= 1) {
1565 interval_data[j] = interval_data[j-1];
1566 }
1567 interval_data[i] = id;
1568 break;
1569 }
1570 }
1571 }
1573 void FlatProfiler::interval_print() {
1574 if ((interval_data[0].total() > 0)) {
1575 tty->stamp();
1576 tty->print("\t");
1577 IntervalData::print_header(tty);
1578 for (int i = 0; i < interval_print_size; i += 1) {
1579 if (interval_data[i].total() > 0) {
1580 tty->print("\t");
1581 interval_data[i].print_data(tty);
1582 }
1583 }
1584 tty->cr();
1585 }
1586 }
1588 void FlatProfiler::interval_reset() {
1589 for (int i = 0; i < interval_print_size; i += 1) {
1590 interval_data[i].reset();
1591 }
1592 }
1594 void ThreadProfiler::oops_do(OopClosure* f) {
1595 if (table == NULL) return;
1597 for(int index = 0; index < table_size; index++) {
1598 for(ProfilerNode* node = table[index]; node; node = node->next())
1599 node->oops_do(f);
1600 }
1601 }
1603 void FlatProfiler::oops_do(OopClosure* f) {
1604 if (thread_profiler != NULL) {
1605 thread_profiler->oops_do(f);
1606 } else {
1607 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
1608 ThreadProfiler* pp = tp->get_thread_profiler();
1609 if (pp != NULL) {
1610 pp->oops_do(f);
1611 }
1612 }
1613 }
1614 }