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 #ifndef SHARE_OOPS_METHODCOUNTERS_HPP
26 #define SHARE_OOPS_METHODCOUNTERS_HPP
27
28 #include "compiler/compilerDefinitions.hpp"
29 #include "interpreter/invocationCounter.hpp"
30 #include "oops/metadata.hpp"
31 #include "utilities/align.hpp"
32
33 class MethodTrainingData;
34
35 class MethodCounters : public Metadata {
36 friend class VMStructs;
37 friend class JVMCIVMStructs;
38
39 // Used by CDS. These classes need to access the private default constructor.
40 template <class T> friend class CppVtableTesterA;
41 template <class T> friend class CppVtableTesterB;
42 template <class T> friend class CppVtableCloner;
43
44 private:
45 InvocationCounter _invocation_counter; // Incremented before each activation of the method - used to trigger frequency-based optimizations
46 InvocationCounter _backedge_counter; // Incremented before each backedge taken - used to trigger frequency-based optimizations
47
48 // Back pointer to the Method*
49 Method* _method;
50
51 Metadata* _method_training_data;
52 jlong _prev_time; // Previous time the rate was acquired
53 float _rate; // Events (invocation and backedge counter increments) per millisecond
54 int _invoke_mask; // per-method Tier0InvokeNotifyFreqLog
55 int _backedge_mask; // per-method Tier0BackedgeNotifyFreqLog
56 int _prev_event_count; // Total number of events saved at previous callback
57 #if COMPILER2_OR_JVMCI
58 u2 _interpreter_throwout_count; // Count of times method was exited via exception while interpreting
59 #endif
60 #if INCLUDE_JVMTI
61 u2 _number_of_breakpoints; // fullspeed debugging support
62 #endif
63 u1 _highest_comp_level; // Highest compile level this method has ever seen.
64 u1 _highest_osr_comp_level; // Same for OSR level
65
66 MethodCounters(const methodHandle& mh);
67 MethodCounters();
68
69 public:
70 virtual bool is_methodCounters() const { return true; }
71 Method* method() const { return _method; }
72 static MethodCounters* allocate_no_exception(const methodHandle& mh);
73 static MethodCounters* allocate_with_exception(const methodHandle& mh, TRAPS);
74
75 void deallocate_contents(ClassLoaderData* loader_data) {}
76
77 static int method_counters_size() {
78 return align_up((int)sizeof(MethodCounters), wordSize) / wordSize;
79 }
80 virtual int size() const {
81 return method_counters_size();
82 }
83
84 MetaspaceObj::Type type() const { return MethodCountersType; }
85 void metaspace_pointers_do(MetaspaceClosure* iter);
86
87 void clear_counters();
88
89 #if COMPILER2_OR_JVMCI
90 void interpreter_throwout_increment() {
91 if (_interpreter_throwout_count < 65534) {
92 _interpreter_throwout_count++;
93 }
94 }
95 u2 interpreter_throwout_count() const {
149 virtual const char* internal_name() const { return "{method counters}"; }
150
151 Metadata* method_training_data_sentinel() {
152 return this;
153 }
154 MethodTrainingData* method_training_data() const {
155 return reinterpret_cast<MethodTrainingData*>(_method_training_data);
156 }
157 bool init_method_training_data(MethodTrainingData* td) {
158 MethodTrainingData* cur = method_training_data();
159 if (cur == td) {
160 return true;
161 }
162 if (cur == nullptr || cur == reinterpret_cast<MethodTrainingData*>(method_training_data_sentinel())) {
163 return AtomicAccess::cmpxchg(reinterpret_cast<MethodTrainingData**>(&_method_training_data), cur, td) == cur;
164 }
165 return false;
166 }
167
168 #if INCLUDE_CDS
169 void remove_unshareable_info();
170 void restore_unshareable_info(TRAPS);
171 #endif
172
173 // Printing
174 void print_on (outputStream* st) const;
175 void print_value_on(outputStream* st) const;
176 void print_data_on(outputStream* st) const;
177 };
178 #endif // SHARE_OOPS_METHODCOUNTERS_HPP
|
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 #ifndef SHARE_OOPS_METHODCOUNTERS_HPP
26 #define SHARE_OOPS_METHODCOUNTERS_HPP
27
28 #include "compiler/compilerDefinitions.hpp"
29 #include "interpreter/invocationCounter.hpp"
30 #include "oops/metadata.hpp"
31 #include "utilities/align.hpp"
32
33 class AOTCodeEntry;
34 class MethodTrainingData;
35
36 class MethodCounters : public Metadata {
37 friend class VMStructs;
38 friend class JVMCIVMStructs;
39
40 // Used by CDS. These classes need to access the private default constructor.
41 template <class T> friend class CppVtableTesterA;
42 template <class T> friend class CppVtableTesterB;
43 template <class T> friend class CppVtableCloner;
44
45 private:
46 InvocationCounter _invocation_counter; // Incremented before each activation of the method - used to trigger frequency-based optimizations
47 InvocationCounter _backedge_counter; // Incremented before each backedge taken - used to trigger frequency-based optimizations
48
49 // Back pointer to the Method*
50 Method* _method;
51
52 Metadata* _method_training_data;
53 #if INCLUDE_CDS
54 AOTCodeEntry* _aot_preload_code_entry; // AOT Code Cache entry for preload code
55 #endif
56 jlong _prev_time; // Previous time the rate was acquired
57 float _rate; // Events (invocation and backedge counter increments) per millisecond
58 int _invoke_mask; // per-method Tier0InvokeNotifyFreqLog
59 int _backedge_mask; // per-method Tier0BackedgeNotifyFreqLog
60 int _prev_event_count; // Total number of events saved at previous callback
61 #if INCLUDE_CDS
62 int _aot_code_invocation_count; // AP4 and A4 AOT code invocations count
63 #endif
64 #if COMPILER2_OR_JVMCI
65 u2 _interpreter_throwout_count; // Count of times method was exited via exception while interpreting
66 #endif
67 #if INCLUDE_JVMTI
68 u2 _number_of_breakpoints; // fullspeed debugging support
69 #endif
70 u1 _highest_comp_level; // Highest compile level this method has ever seen.
71 u1 _highest_osr_comp_level; // Same for OSR level
72
73 MethodCounters(const methodHandle& mh);
74 MethodCounters();
75
76 public:
77 virtual bool is_methodCounters() const { return true; }
78 Method* method() const { return _method; }
79 static MethodCounters* allocate_no_exception(const methodHandle& mh);
80 static MethodCounters* allocate_with_exception(const methodHandle& mh, TRAPS);
81
82 void deallocate_contents(ClassLoaderData* loader_data) NOT_CDS_RETURN;
83
84 static int method_counters_size() {
85 return align_up((int)sizeof(MethodCounters), wordSize) / wordSize;
86 }
87 virtual int size() const {
88 return method_counters_size();
89 }
90
91 MetaspaceObj::Type type() const { return MethodCountersType; }
92 void metaspace_pointers_do(MetaspaceClosure* iter);
93
94 void clear_counters();
95
96 #if COMPILER2_OR_JVMCI
97 void interpreter_throwout_increment() {
98 if (_interpreter_throwout_count < 65534) {
99 _interpreter_throwout_count++;
100 }
101 }
102 u2 interpreter_throwout_count() const {
156 virtual const char* internal_name() const { return "{method counters}"; }
157
158 Metadata* method_training_data_sentinel() {
159 return this;
160 }
161 MethodTrainingData* method_training_data() const {
162 return reinterpret_cast<MethodTrainingData*>(_method_training_data);
163 }
164 bool init_method_training_data(MethodTrainingData* td) {
165 MethodTrainingData* cur = method_training_data();
166 if (cur == td) {
167 return true;
168 }
169 if (cur == nullptr || cur == reinterpret_cast<MethodTrainingData*>(method_training_data_sentinel())) {
170 return AtomicAccess::cmpxchg(reinterpret_cast<MethodTrainingData**>(&_method_training_data), cur, td) == cur;
171 }
172 return false;
173 }
174
175 #if INCLUDE_CDS
176 static ByteSize aot_code_invocation_counter_offset() {
177 return byte_offset_of(MethodCounters, _aot_code_invocation_count);
178 }
179
180 int aot_code_invocation_count() const { return _aot_code_invocation_count;}
181 void set_aot_code_invocation_count(int count) { _aot_code_invocation_count = count; }
182 bool aot_code_recompile_requested() const { return (_aot_code_invocation_count & 1) != 0;}
183
184 void set_aot_preload_code_entry(AOTCodeEntry* entry);
185 AOTCodeEntry* aot_preload_code_entry() const {
186 return _aot_preload_code_entry;
187 }
188
189 void remove_unshareable_info();
190 void restore_unshareable_info(TRAPS);
191 #endif
192
193 // Printing
194 void print_on (outputStream* st) const;
195 void print_value_on(outputStream* st) const;
196 void print_data_on(outputStream* st) const;
197 };
198 #endif // SHARE_OOPS_METHODCOUNTERS_HPP
|