--- a/hotspot/src/share/vm/runtime/fprofiler.cpp Fri Sep 01 14:13:15 2017 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1623 +0,0 @@
-/*
- * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "classfile/classLoader.hpp"
-#include "code/codeCache.hpp"
-#include "code/vtableStubs.hpp"
-#include "gc/shared/collectedHeap.inline.hpp"
-#include "interpreter/interpreter.hpp"
-#include "memory/allocation.inline.hpp"
-#include "memory/resourceArea.hpp"
-#include "memory/universe.inline.hpp"
-#include "oops/oop.inline.hpp"
-#include "oops/symbol.hpp"
-#include "runtime/deoptimization.hpp"
-#include "runtime/fprofiler.hpp"
-#include "runtime/mutexLocker.hpp"
-#include "runtime/stubCodeGenerator.hpp"
-#include "runtime/stubRoutines.hpp"
-#include "runtime/task.hpp"
-#include "runtime/thread.inline.hpp"
-#include "runtime/vframe.hpp"
-#include "utilities/macros.hpp"
-
-// Static fields of FlatProfiler
-int FlatProfiler::received_gc_ticks = 0;
-int FlatProfiler::vm_operation_ticks = 0;
-int FlatProfiler::threads_lock_ticks = 0;
-int FlatProfiler::class_loader_ticks = 0;
-int FlatProfiler::extra_ticks = 0;
-int FlatProfiler::blocked_ticks = 0;
-int FlatProfiler::deopt_ticks = 0;
-int FlatProfiler::unknown_ticks = 0;
-int FlatProfiler::interpreter_ticks = 0;
-int FlatProfiler::compiler_ticks = 0;
-int FlatProfiler::received_ticks = 0;
-int FlatProfiler::delivered_ticks = 0;
-int* FlatProfiler::bytecode_ticks = NULL;
-int* FlatProfiler::bytecode_ticks_stub = NULL;
-int FlatProfiler::all_int_ticks = 0;
-int FlatProfiler::all_comp_ticks = 0;
-int FlatProfiler::all_ticks = 0;
-bool FlatProfiler::full_profile_flag = false;
-ThreadProfiler* FlatProfiler::thread_profiler = NULL;
-ThreadProfiler* FlatProfiler::vm_thread_profiler = NULL;
-FlatProfilerTask* FlatProfiler::task = NULL;
-elapsedTimer FlatProfiler::timer;
-int FlatProfiler::interval_ticks_previous = 0;
-IntervalData* FlatProfiler::interval_data = NULL;
-
-ThreadProfiler::ThreadProfiler() {
- // Space for the ProfilerNodes
- const int area_size = 1 * ProfilerNodeSize * 1024;
- area_bottom = AllocateHeap(area_size, mtInternal);
- area_top = area_bottom;
- area_limit = area_bottom + area_size;
-
- // ProfilerNode pointer table
- table = NEW_C_HEAP_ARRAY(ProfilerNode*, table_size, mtInternal);
- initialize();
- engaged = false;
-}
-
-ThreadProfiler::~ThreadProfiler() {
- FreeHeap(area_bottom);
- area_bottom = NULL;
- area_top = NULL;
- area_limit = NULL;
- FreeHeap(table);
- table = NULL;
-}
-
-// Statics for ThreadProfiler
-int ThreadProfiler::table_size = 1024;
-
-int ThreadProfiler::entry(int value) {
- value = (value > 0) ? value : -value;
- return value % table_size;
-}
-
-ThreadProfilerMark::ThreadProfilerMark(ThreadProfilerMark::Region r) {
- _r = r;
- _pp = NULL;
- assert(((r > ThreadProfilerMark::noRegion) && (r < ThreadProfilerMark::maxRegion)), "ThreadProfilerMark::Region out of bounds");
- Thread* tp = Thread::current();
- if (tp != NULL && tp->is_Java_thread()) {
- JavaThread* jtp = (JavaThread*) tp;
- ThreadProfiler* pp = jtp->get_thread_profiler();
- _pp = pp;
- if (pp != NULL) {
- pp->region_flag[r] = true;
- }
- }
-}
-
-ThreadProfilerMark::~ThreadProfilerMark() {
- if (_pp != NULL) {
- _pp->region_flag[_r] = false;
- }
- _pp = NULL;
-}
-
-// Random other statics
-static const int col1 = 2; // position of output column 1
-static const int col2 = 11; // position of output column 2
-static const int col3 = 25; // position of output column 3
-static const int col4 = 55; // position of output column 4
-
-
-// Used for detailed profiling of nmethods.
-class PCRecorder : AllStatic {
- private:
- static int* counters;
- static address base;
- enum {
- bucket_size = 16
- };
- static int index_for(address pc) { return (pc - base)/bucket_size; }
- static address pc_for(int index) { return base + (index * bucket_size); }
- static int size() {
- return ((int)CodeCache::max_capacity())/bucket_size * BytesPerWord;
- }
- public:
- static address bucket_start_for(address pc) {
- if (counters == NULL) return NULL;
- return pc_for(index_for(pc));
- }
- static int bucket_count_for(address pc) { return counters[index_for(pc)]; }
- static void init();
- static void record(address pc);
- static void print();
- static void print_blobs(CodeBlob* cb);
-};
-
-int* PCRecorder::counters = NULL;
-address PCRecorder::base = NULL;
-
-void PCRecorder::init() {
- MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag);
- int s = size();
- counters = NEW_C_HEAP_ARRAY(int, s, mtInternal);
- for (int index = 0; index < s; index++) {
- counters[index] = 0;
- }
- base = CodeCache::low_bound();
-}
-
-void PCRecorder::record(address pc) {
- if (counters == NULL) return;
- assert(CodeCache::contains(pc), "must be in CodeCache");
- counters[index_for(pc)]++;
-}
-
-
-address FlatProfiler::bucket_start_for(address pc) {
- return PCRecorder::bucket_start_for(pc);
-}
-
-int FlatProfiler::bucket_count_for(address pc) {
- return PCRecorder::bucket_count_for(pc);
-}
-
-void PCRecorder::print() {
- if (counters == NULL) return;
-
- tty->cr();
- tty->print_cr("Printing compiled methods with PC buckets having more than " INTX_FORMAT " ticks", ProfilerPCTickThreshold);
- tty->print_cr("===================================================================");
- tty->cr();
-
- GrowableArray<CodeBlob*>* candidates = new GrowableArray<CodeBlob*>(20);
-
-
- int s;
- {
- MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag);
- s = size();
- }
-
- for (int index = 0; index < s; index++) {
- int count = counters[index];
- if (count > ProfilerPCTickThreshold) {
- address pc = pc_for(index);
- CodeBlob* cb = CodeCache::find_blob_unsafe(pc);
- if (cb != NULL && candidates->find(cb) < 0) {
- candidates->push(cb);
- }
- }
- }
- for (int i = 0; i < candidates->length(); i++) {
- print_blobs(candidates->at(i));
- }
-}
-
-void PCRecorder::print_blobs(CodeBlob* cb) {
- if (cb != NULL) {
- cb->print();
- if (cb->is_nmethod()) {
- ((nmethod*)cb)->print_code();
- }
- tty->cr();
- } else {
- tty->print_cr("stub code");
- }
-}
-
-class tick_counter { // holds tick info for one node
- public:
- int ticks_in_code;
- int ticks_in_native;
-
- tick_counter() { ticks_in_code = ticks_in_native = 0; }
- tick_counter(int code, int native) { ticks_in_code = code; ticks_in_native = native; }
-
- int total() const {
- return (ticks_in_code + ticks_in_native);
- }
-
- void add(tick_counter* a) {
- ticks_in_code += a->ticks_in_code;
- ticks_in_native += a->ticks_in_native;
- }
-
- void update(TickPosition where) {
- switch(where) {
- case tp_code: ticks_in_code++; break;
- case tp_native: ticks_in_native++; break;
- }
- }
-
- void print_code(outputStream* st, int total_ticks) {
- st->print("%5.1f%% %5d ", total() * 100.0 / total_ticks, ticks_in_code);
- }
-
- void print_native(outputStream* st) {
- st->print(" + %5d ", ticks_in_native);
- }
-};
-
-class ProfilerNode {
- private:
- ProfilerNode* _next;
- public:
- tick_counter ticks;
-
- public:
-
- void* operator new(size_t size, ThreadProfiler* tp) throw();
- void operator delete(void* p);
-
- ProfilerNode() {
- _next = NULL;
- }
-
- virtual ~ProfilerNode() {
- if (_next)
- delete _next;
- }
-
- void set_next(ProfilerNode* n) { _next = n; }
- ProfilerNode* next() { return _next; }
-
- void update(TickPosition where) { ticks.update(where);}
- int total_ticks() { return ticks.total(); }
-
- virtual bool is_interpreted() const { return false; }
- virtual bool is_compiled() const { return false; }
- virtual bool is_stub() const { return false; }
- virtual bool is_runtime_stub() const{ return false; }
- virtual void oops_do(OopClosure* f) = 0;
-
- virtual bool interpreted_match(Method* m) const { return false; }
- virtual bool compiled_match(Method* m ) const { return false; }
- virtual bool stub_match(Method* m, const char* name) const { return false; }
- virtual bool adapter_match() const { return false; }
- virtual bool runtimeStub_match(const CodeBlob* stub, const char* name) const { return false; }
- virtual bool unknown_compiled_match(const CodeBlob* cb) const { return false; }
-
- static void print_title(outputStream* st) {
- st->print(" + native");
- st->fill_to(col3);
- st->print("Method");
- st->fill_to(col4);
- st->cr();
- }
-
- static void print_total(outputStream* st, tick_counter* t, int total, const char* msg) {
- t->print_code(st, total);
- st->fill_to(col2);
- t->print_native(st);
- st->fill_to(col3);
- st->print("%s", msg);
- st->cr();
- }
-
- virtual Method* method() = 0;
-
- virtual void print_method_on(outputStream* st) {
- int limit;
- int i;
- Method* m = method();
- Symbol* k = m->klass_name();
- // Print the class name with dots instead of slashes
- limit = k->utf8_length();
- for (i = 0 ; i < limit ; i += 1) {
- char c = (char) k->byte_at(i);
- if (c == '/') {
- c = '.';
- }
- st->print("%c", c);
- }
- if (limit > 0) {
- st->print(".");
- }
- Symbol* n = m->name();
- limit = n->utf8_length();
- for (i = 0 ; i < limit ; i += 1) {
- char c = (char) n->byte_at(i);
- st->print("%c", c);
- }
- if (Verbose || WizardMode) {
- // Disambiguate overloaded methods
- Symbol* sig = m->signature();
- sig->print_symbol_on(st);
- } else if (MethodHandles::is_signature_polymorphic(m->intrinsic_id()))
- // compare with Method::print_short_name
- MethodHandles::print_as_basic_type_signature_on(st, m->signature(), true);
- }
-
- virtual void print(outputStream* st, int total_ticks) {
- ticks.print_code(st, total_ticks);
- st->fill_to(col2);
- ticks.print_native(st);
- st->fill_to(col3);
- print_method_on(st);
- st->cr();
- }
-
- // for hashing into the table
- static int hash(Method* method) {
- // The point here is to try to make something fairly unique
- // out of the fields we can read without grabbing any locks
- // since the method may be locked when we need the hash.
- return (
- method->code_size() ^
- method->max_stack() ^
- method->max_locals() ^
- method->size_of_parameters());
- }
-
- // for sorting
- static int compare(ProfilerNode** a, ProfilerNode** b) {
- return (*b)->total_ticks() - (*a)->total_ticks();
- }
-};
-
-void* ProfilerNode::operator new(size_t size, ThreadProfiler* tp) throw() {
- void* result = (void*) tp->area_top;
- tp->area_top += size;
-
- if (tp->area_top > tp->area_limit) {
- fatal("flat profiler buffer overflow");
- }
- return result;
-}
-
-void ProfilerNode::operator delete(void* p){
-}
-
-class interpretedNode : public ProfilerNode {
- private:
- Method* _method;
- oop _class_loader; // needed to keep metadata for the method alive
- public:
- interpretedNode(Method* method, TickPosition where) : ProfilerNode() {
- _method = method;
- _class_loader = method->method_holder()->class_loader();
- update(where);
- }
-
- bool is_interpreted() const { return true; }
-
- bool interpreted_match(Method* m) const {
- return _method == m;
- }
-
- void oops_do(OopClosure* f) {
- f->do_oop(&_class_loader);
- }
-
- Method* method() { return _method; }
-
- static void print_title(outputStream* st) {
- st->fill_to(col1);
- st->print("%11s", "Interpreted");
- ProfilerNode::print_title(st);
- }
-
- void print(outputStream* st, int total_ticks) {
- ProfilerNode::print(st, total_ticks);
- }
-
- void print_method_on(outputStream* st) {
- ProfilerNode::print_method_on(st);
- MethodCounters* mcs = method()->method_counters();
- if (Verbose && mcs != NULL) mcs->invocation_counter()->print_short();
- }
-};
-
-class compiledNode : public ProfilerNode {
- private:
- Method* _method;
- oop _class_loader; // needed to keep metadata for the method alive
- public:
- compiledNode(Method* method, TickPosition where) : ProfilerNode() {
- _method = method;
- _class_loader = method->method_holder()->class_loader();
- update(where);
- }
- bool is_compiled() const { return true; }
-
- bool compiled_match(Method* m) const {
- return _method == m;
- }
-
- Method* method() { return _method; }
-
- void oops_do(OopClosure* f) {
- f->do_oop(&_class_loader);
- }
-
- static void print_title(outputStream* st) {
- st->fill_to(col1);
- st->print("%11s", "Compiled");
- ProfilerNode::print_title(st);
- }
-
- void print(outputStream* st, int total_ticks) {
- ProfilerNode::print(st, total_ticks);
- }
-
- void print_method_on(outputStream* st) {
- ProfilerNode::print_method_on(st);
- }
-};
-
-class stubNode : public ProfilerNode {
- private:
- Method* _method;
- oop _class_loader; // needed to keep metadata for the method alive
- const char* _symbol; // The name of the nearest VM symbol (for +ProfileVM). Points to a unique string
- public:
- stubNode(Method* method, const char* name, TickPosition where) : ProfilerNode() {
- _method = method;
- _class_loader = method->method_holder()->class_loader();
- _symbol = name;
- update(where);
- }
-
- bool is_stub() const { return true; }
-
- void oops_do(OopClosure* f) {
- f->do_oop(&_class_loader);
- }
-
- bool stub_match(Method* m, const char* name) const {
- return (_method == m) && (_symbol == name);
- }
-
- Method* method() { return _method; }
-
- static void print_title(outputStream* st) {
- st->fill_to(col1);
- st->print("%11s", "Stub");
- ProfilerNode::print_title(st);
- }
-
- void print(outputStream* st, int total_ticks) {
- ProfilerNode::print(st, total_ticks);
- }
-
- void print_method_on(outputStream* st) {
- ProfilerNode::print_method_on(st);
- print_symbol_on(st);
- }
-
- void print_symbol_on(outputStream* st) {
- if(_symbol) {
- st->print(" (%s)", _symbol);
- }
- }
-};
-
-class adapterNode : public ProfilerNode {
- public:
- adapterNode(TickPosition where) : ProfilerNode() {
- update(where);
- }
- bool is_compiled() const { return true; }
-
- bool adapter_match() const { return true; }
-
- Method* method() { return NULL; }
-
- void oops_do(OopClosure* f) {
- ;
- }
-
- void print(outputStream* st, int total_ticks) {
- ProfilerNode::print(st, total_ticks);
- }
-
- void print_method_on(outputStream* st) {
- st->print("%s", "adapters");
- }
-};
-
-class runtimeStubNode : public ProfilerNode {
- private:
- const RuntimeStub* _stub;
- const char* _symbol; // The name of the nearest VM symbol when ProfileVM is on. Points to a unique string.
- public:
- runtimeStubNode(const CodeBlob* stub, const char* name, TickPosition where) : ProfilerNode(), _stub(NULL), _symbol(name) {
- assert(stub->is_runtime_stub(), "wrong code blob");
- _stub = (RuntimeStub*) stub;
- update(where);
- }
-
- bool is_runtime_stub() const { return true; }
-
- bool runtimeStub_match(const CodeBlob* stub, const char* name) const {
- assert(stub->is_runtime_stub(), "wrong code blob");
- return _stub->entry_point() == ((RuntimeStub*)stub)->entry_point() &&
- (_symbol == name);
- }
-
- Method* method() { return NULL; }
-
- static void print_title(outputStream* st) {
- st->fill_to(col1);
- st->print("%11s", "Runtime stub");
- ProfilerNode::print_title(st);
- }
-
- void oops_do(OopClosure* f) {
- ;
- }
-
- void print(outputStream* st, int total_ticks) {
- ProfilerNode::print(st, total_ticks);
- }
-
- void print_method_on(outputStream* st) {
- st->print("%s", _stub->name());
- print_symbol_on(st);
- }
-
- void print_symbol_on(outputStream* st) {
- if(_symbol) {
- st->print(" (%s)", _symbol);
- }
- }
-};
-
-
-class unknown_compiledNode : public ProfilerNode {
- const char *_name;
- public:
- unknown_compiledNode(const CodeBlob* cb, TickPosition where) : ProfilerNode() {
- if ( cb->is_buffer_blob() )
- _name = ((const BufferBlob*)cb)->name();
- else
- _name = ((const SingletonBlob*)cb)->name();
- update(where);
- }
- bool is_compiled() const { return true; }
-
- bool unknown_compiled_match(const CodeBlob* cb) const {
- if ( cb->is_buffer_blob() )
- return !strcmp(((const BufferBlob*)cb)->name(), _name);
- else
- return !strcmp(((const SingletonBlob*)cb)->name(), _name);
- }
-
- Method* method() { return NULL; }
-
- void oops_do(OopClosure* f) {
- ;
- }
-
- void print(outputStream* st, int total_ticks) {
- ProfilerNode::print(st, total_ticks);
- }
-
- void print_method_on(outputStream* st) {
- st->print("%s", _name);
- }
-};
-
-class vmNode : public ProfilerNode {
- private:
- const char* _name; // "optional" name obtained by os means such as dll lookup
- public:
- vmNode(const TickPosition where) : ProfilerNode() {
- _name = NULL;
- update(where);
- }
-
- vmNode(const char* name, const TickPosition where) : ProfilerNode() {
- _name = os::strdup(name);
- update(where);
- }
-
- ~vmNode() {
- if (_name != NULL) {
- os::free((void*)_name);
- }
- }
-
- const char *name() const { return _name; }
- bool is_compiled() const { return true; }
-
- bool vm_match(const char* name) const { return strcmp(name, _name) == 0; }
-
- Method* method() { return NULL; }
-
- static int hash(const char* name){
- // Compute a simple hash
- const char* cp = name;
- int h = 0;
-
- if(name != NULL){
- while(*cp != '\0'){
- h = (h << 1) ^ *cp;
- cp++;
- }
- }
- return h;
- }
-
- void oops_do(OopClosure* f) {
- ;
- }
-
- void print(outputStream* st, int total_ticks) {
- ProfilerNode::print(st, total_ticks);
- }
-
- void print_method_on(outputStream* st) {
- if(_name==NULL){
- st->print("%s", "unknown code");
- }
- else {
- st->print("%s", _name);
- }
- }
-};
-
-void ThreadProfiler::interpreted_update(Method* method, TickPosition where) {
- int index = entry(ProfilerNode::hash(method));
- if (!table[index]) {
- table[index] = new (this) interpretedNode(method, where);
- } else {
- ProfilerNode* prev = table[index];
- for(ProfilerNode* node = prev; node; node = node->next()) {
- if (node->interpreted_match(method)) {
- node->update(where);
- return;
- }
- prev = node;
- }
- prev->set_next(new (this) interpretedNode(method, where));
- }
-}
-
-void ThreadProfiler::compiled_update(Method* method, TickPosition where) {
- int index = entry(ProfilerNode::hash(method));
- if (!table[index]) {
- table[index] = new (this) compiledNode(method, where);
- } else {
- ProfilerNode* prev = table[index];
- for(ProfilerNode* node = prev; node; node = node->next()) {
- if (node->compiled_match(method)) {
- node->update(where);
- return;
- }
- prev = node;
- }
- prev->set_next(new (this) compiledNode(method, where));
- }
-}
-
-void ThreadProfiler::stub_update(Method* method, const char* name, TickPosition where) {
- int index = entry(ProfilerNode::hash(method));
- if (!table[index]) {
- table[index] = new (this) stubNode(method, name, where);
- } else {
- ProfilerNode* prev = table[index];
- for(ProfilerNode* node = prev; node; node = node->next()) {
- if (node->stub_match(method, name)) {
- node->update(where);
- return;
- }
- prev = node;
- }
- prev->set_next(new (this) stubNode(method, name, where));
- }
-}
-
-void ThreadProfiler::adapter_update(TickPosition where) {
- int index = 0;
- if (!table[index]) {
- table[index] = new (this) adapterNode(where);
- } else {
- ProfilerNode* prev = table[index];
- for(ProfilerNode* node = prev; node; node = node->next()) {
- if (node->adapter_match()) {
- node->update(where);
- return;
- }
- prev = node;
- }
- prev->set_next(new (this) adapterNode(where));
- }
-}
-
-void ThreadProfiler::runtime_stub_update(const CodeBlob* stub, const char* name, TickPosition where) {
- int index = 0;
- if (!table[index]) {
- table[index] = new (this) runtimeStubNode(stub, name, where);
- } else {
- ProfilerNode* prev = table[index];
- for(ProfilerNode* node = prev; node; node = node->next()) {
- if (node->runtimeStub_match(stub, name)) {
- node->update(where);
- return;
- }
- prev = node;
- }
- prev->set_next(new (this) runtimeStubNode(stub, name, where));
- }
-}
-
-
-void ThreadProfiler::unknown_compiled_update(const CodeBlob* cb, TickPosition where) {
- int index = 0;
- if (!table[index]) {
- table[index] = new (this) unknown_compiledNode(cb, where);
- } else {
- ProfilerNode* prev = table[index];
- for(ProfilerNode* node = prev; node; node = node->next()) {
- if (node->unknown_compiled_match(cb)) {
- node->update(where);
- return;
- }
- prev = node;
- }
- prev->set_next(new (this) unknown_compiledNode(cb, where));
- }
-}
-
-void ThreadProfiler::vm_update(TickPosition where) {
- vm_update(NULL, where);
-}
-
-void ThreadProfiler::vm_update(const char* name, TickPosition where) {
- int index = entry(vmNode::hash(name));
- assert(index >= 0, "Must be positive");
- // Note that we call strdup below since the symbol may be resource allocated
- if (!table[index]) {
- table[index] = new (this) vmNode(name, where);
- } else {
- ProfilerNode* prev = table[index];
- for(ProfilerNode* node = prev; node; node = node->next()) {
- if (((vmNode *)node)->vm_match(name)) {
- node->update(where);
- return;
- }
- prev = node;
- }
- prev->set_next(new (this) vmNode(name, where));
- }
-}
-
-
-class FlatProfilerTask : public PeriodicTask {
-public:
- FlatProfilerTask(int interval_time) : PeriodicTask(interval_time) {}
- void task();
-};
-
-void FlatProfiler::record_vm_operation() {
- if (Universe::heap()->is_gc_active()) {
- FlatProfiler::received_gc_ticks += 1;
- return;
- }
-
- if (DeoptimizationMarker::is_active()) {
- FlatProfiler::deopt_ticks += 1;
- return;
- }
-
- FlatProfiler::vm_operation_ticks += 1;
-}
-
-void FlatProfiler::record_vm_tick() {
- // Profile the VM Thread itself if needed
- // This is done without getting the Threads_lock and we can go deep
- // inside Safepoint, etc.
- if( ProfileVM ) {
- ResourceMark rm;
- ExtendedPC epc;
- const char *name = NULL;
- char buf[256];
- buf[0] = '\0';
-
- vm_thread_profiler->inc_thread_ticks();
-
- // Get a snapshot of a current VMThread pc (and leave it running!)
- // The call may fail in some circumstances
- epc = os::get_thread_pc(VMThread::vm_thread());
- if(epc.pc() != NULL) {
- if (os::dll_address_to_function_name(epc.pc(), buf, sizeof(buf), NULL)) {
- name = buf;
- }
- }
- if (name != NULL) {
- vm_thread_profiler->vm_update(name, tp_native);
- }
- }
-}
-
-void FlatProfiler::record_thread_ticks() {
-
- int maxthreads, suspendedthreadcount;
- JavaThread** threadsList;
- bool interval_expired = false;
-
- if (ProfileIntervals &&
- (FlatProfiler::received_ticks >= interval_ticks_previous + ProfileIntervalsTicks)) {
- interval_expired = true;
- interval_ticks_previous = FlatProfiler::received_ticks;
- }
-
- // Try not to wait for the Threads_lock
- if (Threads_lock->try_lock()) {
- { // Threads_lock scope
- maxthreads = Threads::number_of_threads();
- threadsList = NEW_C_HEAP_ARRAY(JavaThread *, maxthreads, mtInternal);
- suspendedthreadcount = 0;
- for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
- if (tp->is_Compiler_thread()) {
- // Only record ticks for active compiler threads
- CompilerThread* cthread = (CompilerThread*)tp;
- if (cthread->task() != NULL) {
- // The compiler is active. If we need to access any of the fields
- // of the compiler task we should suspend the CompilerThread first.
- FlatProfiler::compiler_ticks += 1;
- continue;
- }
- }
-
- // First externally suspend all threads by marking each for
- // external suspension - so it will stop at its next transition
- // Then do a safepoint
- ThreadProfiler* pp = tp->get_thread_profiler();
- if (pp != NULL && pp->engaged) {
- MutexLockerEx ml(tp->SR_lock(), Mutex::_no_safepoint_check_flag);
- if (!tp->is_external_suspend() && !tp->is_exiting()) {
- tp->set_external_suspend();
- threadsList[suspendedthreadcount++] = tp;
- }
- }
- }
- Threads_lock->unlock();
- }
- // Suspend each thread. This call should just return
- // for any threads that have already self-suspended
- // Net result should be one safepoint
- for (int j = 0; j < suspendedthreadcount; j++) {
- JavaThread *tp = threadsList[j];
- if (tp) {
- tp->java_suspend();
- }
- }
-
- // We are responsible for resuming any thread on this list
- for (int i = 0; i < suspendedthreadcount; i++) {
- JavaThread *tp = threadsList[i];
- if (tp) {
- ThreadProfiler* pp = tp->get_thread_profiler();
- if (pp != NULL && pp->engaged) {
- HandleMark hm;
- FlatProfiler::delivered_ticks += 1;
- if (interval_expired) {
- FlatProfiler::interval_record_thread(pp);
- }
- // This is the place where we check to see if a user thread is
- // blocked waiting for compilation.
- if (tp->blocked_on_compilation()) {
- pp->compiler_ticks += 1;
- pp->interval_data_ref()->inc_compiling();
- } else {
- pp->record_tick(tp);
- }
- }
- MutexLocker ml(Threads_lock);
- tp->java_resume();
- }
- }
- if (interval_expired) {
- FlatProfiler::interval_print();
- FlatProfiler::interval_reset();
- }
-
- FREE_C_HEAP_ARRAY(JavaThread *, threadsList);
- } else {
- // Couldn't get the threads lock, just record that rather than blocking
- FlatProfiler::threads_lock_ticks += 1;
- }
-
-}
-
-void FlatProfilerTask::task() {
- FlatProfiler::received_ticks += 1;
-
- if (ProfileVM) {
- FlatProfiler::record_vm_tick();
- }
-
- VM_Operation* op = VMThread::vm_operation();
- if (op != NULL) {
- FlatProfiler::record_vm_operation();
- if (SafepointSynchronize::is_at_safepoint()) {
- return;
- }
- }
- FlatProfiler::record_thread_ticks();
-}
-
-void ThreadProfiler::record_interpreted_tick(JavaThread* thread, frame fr, TickPosition where, int* ticks) {
- FlatProfiler::all_int_ticks++;
- if (!FlatProfiler::full_profile()) {
- return;
- }
-
- if (!fr.is_interpreted_frame_valid(thread)) {
- // tick came at a bad time
- interpreter_ticks += 1;
- FlatProfiler::interpreter_ticks += 1;
- return;
- }
-
- // The frame has been fully validated so we can trust the method and bci
-
- Method* method = *fr.interpreter_frame_method_addr();
-
- interpreted_update(method, where);
-
- // update byte code table
- InterpreterCodelet* desc = Interpreter::codelet_containing(fr.pc());
- if (desc != NULL && desc->bytecode() >= 0) {
- ticks[desc->bytecode()]++;
- }
-}
-
-void ThreadProfiler::record_compiled_tick(JavaThread* thread, frame fr, TickPosition where) {
- const char *name = NULL;
- TickPosition localwhere = where;
-
- FlatProfiler::all_comp_ticks++;
- if (!FlatProfiler::full_profile()) return;
-
- CodeBlob* cb = fr.cb();
-
- // For runtime stubs, record as native rather than as compiled
- if (cb->is_runtime_stub()) {
- RegisterMap map(thread, false);
- fr = fr.sender(&map);
- cb = fr.cb();
- localwhere = tp_native;
- }
-
- Method* method = cb->is_compiled() ? cb->as_compiled_method()->method() : (Method*) NULL;
- if (method == NULL) {
- if (cb->is_runtime_stub())
- runtime_stub_update(cb, name, localwhere);
- else
- unknown_compiled_update(cb, localwhere);
- }
- else {
- if (method->is_native()) {
- stub_update(method, name, localwhere);
- } else {
- compiled_update(method, localwhere);
- }
- }
-}
-
-extern "C" void find(int x);
-
-
-void ThreadProfiler::record_tick_for_running_frame(JavaThread* thread, frame fr) {
- // The tick happened in real code -> non VM code
- if (fr.is_interpreted_frame()) {
- interval_data_ref()->inc_interpreted();
- record_interpreted_tick(thread, fr, tp_code, FlatProfiler::bytecode_ticks);
- return;
- }
-
- if (CodeCache::contains(fr.pc())) {
- interval_data_ref()->inc_compiled();
- PCRecorder::record(fr.pc());
- record_compiled_tick(thread, fr, tp_code);
- return;
- }
-
- if (VtableStubs::stub_containing(fr.pc()) != NULL) {
- unknown_ticks_array[ut_vtable_stubs] += 1;
- return;
- }
-
- frame caller = fr.profile_find_Java_sender_frame(thread);
-
- if (caller.sp() != NULL && caller.pc() != NULL) {
- record_tick_for_calling_frame(thread, caller);
- return;
- }
-
- unknown_ticks_array[ut_running_frame] += 1;
- FlatProfiler::unknown_ticks += 1;
-}
-
-void ThreadProfiler::record_tick_for_calling_frame(JavaThread* thread, frame fr) {
- // The tick happened in VM code
- interval_data_ref()->inc_native();
- if (fr.is_interpreted_frame()) {
- record_interpreted_tick(thread, fr, tp_native, FlatProfiler::bytecode_ticks_stub);
- return;
- }
- if (CodeCache::contains(fr.pc())) {
- record_compiled_tick(thread, fr, tp_native);
- return;
- }
-
- frame caller = fr.profile_find_Java_sender_frame(thread);
-
- if (caller.sp() != NULL && caller.pc() != NULL) {
- record_tick_for_calling_frame(thread, caller);
- return;
- }
-
- unknown_ticks_array[ut_calling_frame] += 1;
- FlatProfiler::unknown_ticks += 1;
-}
-
-void ThreadProfiler::record_tick(JavaThread* thread) {
- FlatProfiler::all_ticks++;
- thread_ticks += 1;
-
- // Here's another way to track global state changes.
- // When the class loader starts it marks the ThreadProfiler to tell it it is in the class loader
- // and we check that here.
- // This is more direct, and more than one thread can be in the class loader at a time,
- // but it does mean the class loader has to know about the profiler.
- if (region_flag[ThreadProfilerMark::classLoaderRegion]) {
- class_loader_ticks += 1;
- FlatProfiler::class_loader_ticks += 1;
- return;
- } else if (region_flag[ThreadProfilerMark::extraRegion]) {
- extra_ticks += 1;
- FlatProfiler::extra_ticks += 1;
- return;
- }
- // Note that the WatcherThread can now stop for safepoints
- uint32_t debug_bits = 0;
- if (!thread->wait_for_ext_suspend_completion(SuspendRetryCount,
- SuspendRetryDelay, &debug_bits)) {
- unknown_ticks_array[ut_unknown_thread_state] += 1;
- FlatProfiler::unknown_ticks += 1;
- return;
- }
-
- frame fr;
-
- switch (thread->thread_state()) {
- case _thread_in_native:
- case _thread_in_native_trans:
- case _thread_in_vm:
- case _thread_in_vm_trans:
- if (thread->profile_last_Java_frame(&fr)) {
- if (fr.is_runtime_frame()) {
- RegisterMap map(thread, false);
- fr = fr.sender(&map);
- }
- record_tick_for_calling_frame(thread, fr);
- } else {
- unknown_ticks_array[ut_no_last_Java_frame] += 1;
- FlatProfiler::unknown_ticks += 1;
- }
- break;
- // handle_special_runtime_exit_condition self-suspends threads in Java
- case _thread_in_Java:
- case _thread_in_Java_trans:
- if (thread->profile_last_Java_frame(&fr)) {
- if (fr.is_safepoint_blob_frame()) {
- RegisterMap map(thread, false);
- fr = fr.sender(&map);
- }
- record_tick_for_running_frame(thread, fr);
- } else {
- unknown_ticks_array[ut_no_last_Java_frame] += 1;
- FlatProfiler::unknown_ticks += 1;
- }
- break;
- case _thread_blocked:
- case _thread_blocked_trans:
- if (thread->osthread() && thread->osthread()->get_state() == RUNNABLE) {
- if (thread->profile_last_Java_frame(&fr)) {
- if (fr.is_safepoint_blob_frame()) {
- RegisterMap map(thread, false);
- fr = fr.sender(&map);
- record_tick_for_running_frame(thread, fr);
- } else {
- record_tick_for_calling_frame(thread, fr);
- }
- } else {
- unknown_ticks_array[ut_no_last_Java_frame] += 1;
- FlatProfiler::unknown_ticks += 1;
- }
- } else {
- blocked_ticks += 1;
- FlatProfiler::blocked_ticks += 1;
- }
- break;
- case _thread_uninitialized:
- case _thread_new:
- // not used, included for completeness
- case _thread_new_trans:
- unknown_ticks_array[ut_no_last_Java_frame] += 1;
- FlatProfiler::unknown_ticks += 1;
- break;
- default:
- unknown_ticks_array[ut_unknown_thread_state] += 1;
- FlatProfiler::unknown_ticks += 1;
- break;
- }
- return;
-}
-
-void ThreadProfiler::engage() {
- engaged = true;
- timer.start();
-}
-
-void ThreadProfiler::disengage() {
- engaged = false;
- timer.stop();
-}
-
-void ThreadProfiler::initialize() {
- for (int index = 0; index < table_size; index++) {
- table[index] = NULL;
- }
- thread_ticks = 0;
- blocked_ticks = 0;
- compiler_ticks = 0;
- interpreter_ticks = 0;
- for (int ut = 0; ut < ut_end; ut += 1) {
- unknown_ticks_array[ut] = 0;
- }
- region_flag[ThreadProfilerMark::classLoaderRegion] = false;
- class_loader_ticks = 0;
- region_flag[ThreadProfilerMark::extraRegion] = false;
- extra_ticks = 0;
- timer.start();
- interval_data_ref()->reset();
-}
-
-void ThreadProfiler::reset() {
- timer.stop();
- if (table != NULL) {
- for (int index = 0; index < table_size; index++) {
- ProfilerNode* n = table[index];
- if (n != NULL) {
- delete n;
- }
- }
- }
- initialize();
-}
-
-void FlatProfiler::allocate_table() {
- { // Bytecode table
- bytecode_ticks = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal);
- bytecode_ticks_stub = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal);
- for(int index = 0; index < Bytecodes::number_of_codes; index++) {
- bytecode_ticks[index] = 0;
- bytecode_ticks_stub[index] = 0;
- }
- }
-
- if (ProfilerRecordPC) PCRecorder::init();
-
- interval_data = NEW_C_HEAP_ARRAY(IntervalData, interval_print_size, mtInternal);
- FlatProfiler::interval_reset();
-}
-
-void FlatProfiler::engage(JavaThread* mainThread, bool fullProfile) {
- full_profile_flag = fullProfile;
- if (bytecode_ticks == NULL) {
- allocate_table();
- }
- if(ProfileVM && (vm_thread_profiler == NULL)){
- vm_thread_profiler = new ThreadProfiler();
- }
- if (task == NULL) {
- task = new FlatProfilerTask(WatcherThread::delay_interval);
- task->enroll();
- }
- timer.start();
- if (mainThread != NULL) {
- // When mainThread was created, it might not have a ThreadProfiler
- ThreadProfiler* pp = mainThread->get_thread_profiler();
- if (pp == NULL) {
- mainThread->set_thread_profiler(new ThreadProfiler());
- } else {
- pp->reset();
- }
- mainThread->get_thread_profiler()->engage();
- }
- // This is where we would assign thread_profiler
- // if we wanted only one thread_profiler for all threads.
- thread_profiler = NULL;
-}
-
-void FlatProfiler::disengage() {
- if (!task) {
- return;
- }
- timer.stop();
- task->disenroll();
- delete task;
- task = NULL;
- if (thread_profiler != NULL) {
- thread_profiler->disengage();
- } else {
- MutexLocker tl(Threads_lock);
- for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
- ThreadProfiler* pp = tp->get_thread_profiler();
- if (pp != NULL) {
- pp->disengage();
- }
- }
- }
-}
-
-void FlatProfiler::reset() {
- if (task) {
- disengage();
- }
-
- class_loader_ticks = 0;
- extra_ticks = 0;
- received_gc_ticks = 0;
- vm_operation_ticks = 0;
- compiler_ticks = 0;
- deopt_ticks = 0;
- interpreter_ticks = 0;
- blocked_ticks = 0;
- unknown_ticks = 0;
- received_ticks = 0;
- delivered_ticks = 0;
- timer.stop();
-}
-
-bool FlatProfiler::is_active() {
- return task != NULL;
-}
-
-void FlatProfiler::print_byte_code_statistics() {
- GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200);
-
- tty->print_cr(" Bytecode ticks:");
- for (int index = 0; index < Bytecodes::number_of_codes; index++) {
- if (FlatProfiler::bytecode_ticks[index] > 0 || FlatProfiler::bytecode_ticks_stub[index] > 0) {
- tty->print_cr(" %4d %4d = %s",
- FlatProfiler::bytecode_ticks[index],
- FlatProfiler::bytecode_ticks_stub[index],
- Bytecodes::name( (Bytecodes::Code) index));
- }
- }
- tty->cr();
-}
-
-void print_ticks(const char* title, int ticks, int total) {
- if (ticks > 0) {
- tty->print("%5.1f%% %5d", ticks * 100.0 / total, ticks);
- tty->fill_to(col3);
- tty->print("%s", title);
- tty->cr();
- }
-}
-
-void ThreadProfiler::print(const char* thread_name) {
- ResourceMark rm;
- MutexLocker ppl(ProfilePrint_lock);
- int index = 0; // Declared outside for loops for portability
-
- if (table == NULL) {
- return;
- }
-
- if (thread_ticks <= 0) {
- return;
- }
-
- const char* title = "too soon to tell";
- double secs = timer.seconds();
-
- GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200);
- for(index = 0; index < table_size; index++) {
- for(ProfilerNode* node = table[index]; node; node = node->next())
- array->append(node);
- }
-
- array->sort(&ProfilerNode::compare);
-
- // compute total (sanity check)
- int active =
- class_loader_ticks +
- compiler_ticks +
- interpreter_ticks +
- unknown_ticks();
- for (index = 0; index < array->length(); index++) {
- active += array->at(index)->ticks.total();
- }
- int total = active + blocked_ticks;
-
- tty->cr();
- tty->print_cr("Flat profile of %3.2f secs (%d total ticks): %s", secs, total, thread_name);
- if (total != thread_ticks) {
- print_ticks("Lost ticks", thread_ticks-total, thread_ticks);
- }
- tty->cr();
-
- // print interpreted methods
- tick_counter interpreted_ticks;
- bool has_interpreted_ticks = false;
- int print_count = 0;
- for (index = 0; index < array->length(); index++) {
- ProfilerNode* n = array->at(index);
- if (n->is_interpreted()) {
- interpreted_ticks.add(&n->ticks);
- if (!has_interpreted_ticks) {
- interpretedNode::print_title(tty);
- has_interpreted_ticks = true;
- }
- if (print_count++ < ProfilerNumberOfInterpretedMethods) {
- n->print(tty, active);
- }
- }
- }
- if (has_interpreted_ticks) {
- if (print_count <= ProfilerNumberOfInterpretedMethods) {
- title = "Total interpreted";
- } else {
- title = "Total interpreted (including elided)";
- }
- interpretedNode::print_total(tty, &interpreted_ticks, active, title);
- tty->cr();
- }
-
- // print compiled methods
- tick_counter compiled_ticks;
- bool has_compiled_ticks = false;
- print_count = 0;
- for (index = 0; index < array->length(); index++) {
- ProfilerNode* n = array->at(index);
- if (n->is_compiled()) {
- compiled_ticks.add(&n->ticks);
- if (!has_compiled_ticks) {
- compiledNode::print_title(tty);
- has_compiled_ticks = true;
- }
- if (print_count++ < ProfilerNumberOfCompiledMethods) {
- n->print(tty, active);
- }
- }
- }
- if (has_compiled_ticks) {
- if (print_count <= ProfilerNumberOfCompiledMethods) {
- title = "Total compiled";
- } else {
- title = "Total compiled (including elided)";
- }
- compiledNode::print_total(tty, &compiled_ticks, active, title);
- tty->cr();
- }
-
- // print stub methods
- tick_counter stub_ticks;
- bool has_stub_ticks = false;
- print_count = 0;
- for (index = 0; index < array->length(); index++) {
- ProfilerNode* n = array->at(index);
- if (n->is_stub()) {
- stub_ticks.add(&n->ticks);
- if (!has_stub_ticks) {
- stubNode::print_title(tty);
- has_stub_ticks = true;
- }
- if (print_count++ < ProfilerNumberOfStubMethods) {
- n->print(tty, active);
- }
- }
- }
- if (has_stub_ticks) {
- if (print_count <= ProfilerNumberOfStubMethods) {
- title = "Total stub";
- } else {
- title = "Total stub (including elided)";
- }
- stubNode::print_total(tty, &stub_ticks, active, title);
- tty->cr();
- }
-
- // print runtime stubs
- tick_counter runtime_stub_ticks;
- bool has_runtime_stub_ticks = false;
- print_count = 0;
- for (index = 0; index < array->length(); index++) {
- ProfilerNode* n = array->at(index);
- if (n->is_runtime_stub()) {
- runtime_stub_ticks.add(&n->ticks);
- if (!has_runtime_stub_ticks) {
- runtimeStubNode::print_title(tty);
- has_runtime_stub_ticks = true;
- }
- if (print_count++ < ProfilerNumberOfRuntimeStubNodes) {
- n->print(tty, active);
- }
- }
- }
- if (has_runtime_stub_ticks) {
- if (print_count <= ProfilerNumberOfRuntimeStubNodes) {
- title = "Total runtime stubs";
- } else {
- title = "Total runtime stubs (including elided)";
- }
- runtimeStubNode::print_total(tty, &runtime_stub_ticks, active, title);
- tty->cr();
- }
-
- if (blocked_ticks + class_loader_ticks + interpreter_ticks + compiler_ticks + unknown_ticks() != 0) {
- tty->fill_to(col1);
- tty->print_cr("Thread-local ticks:");
- print_ticks("Blocked (of total)", blocked_ticks, total);
- print_ticks("Class loader", class_loader_ticks, active);
- print_ticks("Extra", extra_ticks, active);
- print_ticks("Interpreter", interpreter_ticks, active);
- print_ticks("Compilation", compiler_ticks, active);
- print_ticks("Unknown: vtable stubs", unknown_ticks_array[ut_vtable_stubs], active);
- print_ticks("Unknown: null method", unknown_ticks_array[ut_null_method], active);
- print_ticks("Unknown: running frame", unknown_ticks_array[ut_running_frame], active);
- print_ticks("Unknown: calling frame", unknown_ticks_array[ut_calling_frame], active);
- print_ticks("Unknown: no pc", unknown_ticks_array[ut_no_pc], active);
- print_ticks("Unknown: no last frame", unknown_ticks_array[ut_no_last_Java_frame], active);
- print_ticks("Unknown: thread_state", unknown_ticks_array[ut_unknown_thread_state], active);
- tty->cr();
- }
-
- if (WizardMode) {
- tty->print_cr("Node area used: " INTX_FORMAT " Kb", (area_top - area_bottom) / 1024);
- }
- reset();
-}
-
-/*
-ThreadProfiler::print_unknown(){
- if (table == NULL) {
- return;
- }
-
- if (thread_ticks <= 0) {
- return;
- }
-} */
-
-void FlatProfiler::print(int unused) {
- ResourceMark rm;
- if (thread_profiler != NULL) {
- thread_profiler->print("All threads");
- } else {
- MutexLocker tl(Threads_lock);
- for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
- ThreadProfiler* pp = tp->get_thread_profiler();
- if (pp != NULL) {
- pp->print(tp->get_thread_name());
- }
- }
- }
-
- if (ProfilerPrintByteCodeStatistics) {
- print_byte_code_statistics();
- }
-
- if (non_method_ticks() > 0) {
- tty->cr();
- tty->print_cr("Global summary of %3.2f seconds:", timer.seconds());
- print_ticks("Received ticks", received_ticks, received_ticks);
- print_ticks("Received GC ticks", received_gc_ticks, received_ticks);
- print_ticks("Compilation", compiler_ticks, received_ticks);
- print_ticks("Deoptimization", deopt_ticks, received_ticks);
- print_ticks("Other VM operations", vm_operation_ticks, received_ticks);
-#ifndef PRODUCT
- print_ticks("Blocked ticks", blocked_ticks, received_ticks);
- print_ticks("Threads_lock blocks", threads_lock_ticks, received_ticks);
- print_ticks("Delivered ticks", delivered_ticks, received_ticks);
- print_ticks("All ticks", all_ticks, received_ticks);
-#endif
- print_ticks("Class loader", class_loader_ticks, received_ticks);
- print_ticks("Extra ", extra_ticks, received_ticks);
- print_ticks("Interpreter", interpreter_ticks, received_ticks);
- print_ticks("Unknown code", unknown_ticks, received_ticks);
- }
-
- PCRecorder::print();
-
- if(ProfileVM){
- tty->cr();
- vm_thread_profiler->print("VM Thread");
- }
-}
-
-void IntervalData::print_header(outputStream* st) {
- st->print("i/c/n/g");
-}
-
-void IntervalData::print_data(outputStream* st) {
- st->print("%d/%d/%d/%d", interpreted(), compiled(), native(), compiling());
-}
-
-void FlatProfiler::interval_record_thread(ThreadProfiler* tp) {
- IntervalData id = tp->interval_data();
- int total = id.total();
- tp->interval_data_ref()->reset();
-
- // Insertion sort the data, if it's relevant.
- for (int i = 0; i < interval_print_size; i += 1) {
- if (total > interval_data[i].total()) {
- for (int j = interval_print_size - 1; j > i; j -= 1) {
- interval_data[j] = interval_data[j-1];
- }
- interval_data[i] = id;
- break;
- }
- }
-}
-
-void FlatProfiler::interval_print() {
- if ((interval_data[0].total() > 0)) {
- tty->stamp();
- tty->print("\t");
- IntervalData::print_header(tty);
- for (int i = 0; i < interval_print_size; i += 1) {
- if (interval_data[i].total() > 0) {
- tty->print("\t");
- interval_data[i].print_data(tty);
- }
- }
- tty->cr();
- }
-}
-
-void FlatProfiler::interval_reset() {
- for (int i = 0; i < interval_print_size; i += 1) {
- interval_data[i].reset();
- }
-}
-
-void ThreadProfiler::oops_do(OopClosure* f) {
- if (table == NULL) return;
-
- for(int index = 0; index < table_size; index++) {
- for(ProfilerNode* node = table[index]; node; node = node->next())
- node->oops_do(f);
- }
-}
-
-void FlatProfiler::oops_do(OopClosure* f) {
- if (thread_profiler != NULL) {
- thread_profiler->oops_do(f);
- } else {
- for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) {
- ThreadProfiler* pp = tp->get_thread_profiler();
- if (pp != NULL) {
- pp->oops_do(f);
- }
- }
- }
-}