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annotate src/share/vm/compiler/compileBroker.hpp @ 3763:e66f38dd58a9
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author | ysr |
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date | Wed, 08 Jun 2011 08:39:53 -0700 |
parents | 3d58a4983660 |
children | 0654ee04b214 f6f3bb0ee072 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_COMPILER_COMPILEBROKER_HPP |
26 #define SHARE_VM_COMPILER_COMPILEBROKER_HPP | |
27 | |
28 #include "ci/compilerInterface.hpp" | |
29 #include "compiler/abstractCompiler.hpp" | |
30 #include "runtime/perfData.hpp" | |
31 | |
0 | 32 class nmethod; |
33 class nmethodLocker; | |
34 | |
35 // CompileTask | |
36 // | |
37 // An entry in the compile queue. It represents a pending or current | |
38 // compilation. | |
39 class CompileTask : public CHeapObj { | |
40 private: | |
41 Monitor* _lock; | |
42 uint _compile_id; | |
43 jobject _method; | |
44 int _osr_bci; | |
45 bool _is_complete; | |
46 bool _is_success; | |
47 bool _is_blocking; | |
48 int _comp_level; | |
49 int _num_inlined_bytecodes; | |
50 nmethodLocker* _code_handle; // holder of eventual result | |
1783 | 51 CompileTask* _next, *_prev; |
0 | 52 |
53 // Fields used for logging why the compilation was initiated: | |
54 jlong _time_queued; // in units of os::elapsed_counter() | |
55 jobject _hot_method; // which method actually triggered this task | |
56 int _hot_count; // information about its invocation counter | |
57 const char* _comment; // more info about the task | |
58 | |
59 public: | |
60 CompileTask() { | |
61 _lock = new Monitor(Mutex::nonleaf+2, "CompileTaskLock"); | |
62 } | |
63 | |
64 void initialize(int compile_id, methodHandle method, int osr_bci, int comp_level, | |
65 methodHandle hot_method, int hot_count, const char* comment, | |
66 bool is_blocking); | |
67 | |
68 void free(); | |
69 | |
70 int compile_id() const { return _compile_id; } | |
71 jobject method_handle() const { return _method; } | |
72 int osr_bci() const { return _osr_bci; } | |
73 bool is_complete() const { return _is_complete; } | |
74 bool is_blocking() const { return _is_blocking; } | |
75 bool is_success() const { return _is_success; } | |
76 | |
77 nmethodLocker* code_handle() const { return _code_handle; } | |
78 void set_code_handle(nmethodLocker* l) { _code_handle = l; } | |
79 nmethod* code() const; // _code_handle->code() | |
80 void set_code(nmethod* nm); // _code_handle->set_code(nm) | |
81 | |
82 Monitor* lock() const { return _lock; } | |
83 | |
84 void mark_complete() { _is_complete = true; } | |
85 void mark_success() { _is_success = true; } | |
86 | |
87 int comp_level() { return _comp_level;} | |
88 void set_comp_level(int comp_level) { _comp_level = comp_level;} | |
89 | |
90 int num_inlined_bytecodes() const { return _num_inlined_bytecodes; } | |
91 void set_num_inlined_bytecodes(int n) { _num_inlined_bytecodes = n; } | |
92 | |
93 CompileTask* next() const { return _next; } | |
94 void set_next(CompileTask* next) { _next = next; } | |
1783 | 95 CompileTask* prev() const { return _prev; } |
96 void set_prev(CompileTask* prev) { _prev = prev; } | |
0 | 97 |
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98 private: |
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99 static void print_compilation_impl(outputStream* st, methodOop method, int compile_id, int comp_level, bool is_osr_method = false, int osr_bci = -1, bool is_blocking = false, const char* msg = NULL); |
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100 |
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101 public: |
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102 void print_compilation(outputStream* st = tty); |
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103 static void print_compilation(outputStream* st, const nmethod* nm, const char* msg = NULL) { |
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104 print_compilation_impl(st, nm->method(), nm->compile_id(), nm->comp_level(), nm->is_osr_method(), nm->is_osr_method() ? nm->osr_entry_bci() : -1, /*is_blocking*/ false, msg); |
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105 } |
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106 |
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107 static void print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg = NULL); |
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108 static void print_inlining(ciMethod* method, int inline_level, int bci, const char* msg = NULL) { |
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109 print_inlining(tty, method, inline_level, bci, msg); |
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110 } |
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111 |
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112 static void print_inline_indent(int inline_level, outputStream* st = tty); |
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113 |
0 | 114 void print(); |
115 void print_line(); | |
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116 void print_line_on_error(outputStream* st, char* buf, int buflen); |
1783 | 117 |
0 | 118 void log_task(xmlStream* log); |
119 void log_task_queued(); | |
120 void log_task_start(CompileLog* log); | |
121 void log_task_done(CompileLog* log); | |
122 }; | |
123 | |
124 // CompilerCounters | |
125 // | |
126 // Per Compiler Performance Counters. | |
127 // | |
128 class CompilerCounters : public CHeapObj { | |
129 | |
130 public: | |
131 enum { | |
132 cmname_buffer_length = 160 | |
133 }; | |
134 | |
135 private: | |
136 | |
137 char _current_method[cmname_buffer_length]; | |
138 PerfStringVariable* _perf_current_method; | |
139 | |
140 int _compile_type; | |
141 PerfVariable* _perf_compile_type; | |
142 | |
143 PerfCounter* _perf_time; | |
144 PerfCounter* _perf_compiles; | |
145 | |
146 public: | |
147 CompilerCounters(const char* name, int instance, TRAPS); | |
148 | |
149 // these methods should be called in a thread safe context | |
150 | |
151 void set_current_method(const char* method) { | |
152 strncpy(_current_method, method, (size_t)cmname_buffer_length); | |
153 if (UsePerfData) _perf_current_method->set_value(method); | |
154 } | |
155 | |
156 char* current_method() { return _current_method; } | |
157 | |
158 void set_compile_type(int compile_type) { | |
159 _compile_type = compile_type; | |
160 if (UsePerfData) _perf_compile_type->set_value((jlong)compile_type); | |
161 } | |
162 | |
163 int compile_type() { return _compile_type; } | |
164 | |
165 PerfCounter* time_counter() { return _perf_time; } | |
166 PerfCounter* compile_counter() { return _perf_compiles; } | |
167 }; | |
168 | |
169 // CompileQueue | |
170 // | |
171 // A list of CompileTasks. | |
172 class CompileQueue : public CHeapObj { | |
173 private: | |
174 const char* _name; | |
175 Monitor* _lock; | |
176 | |
177 CompileTask* _first; | |
178 CompileTask* _last; | |
179 | |
1783 | 180 int _size; |
0 | 181 public: |
182 CompileQueue(const char* name, Monitor* lock) { | |
183 _name = name; | |
184 _lock = lock; | |
185 _first = NULL; | |
186 _last = NULL; | |
1783 | 187 _size = 0; |
0 | 188 } |
189 | |
190 const char* name() const { return _name; } | |
191 Monitor* lock() const { return _lock; } | |
192 | |
193 void add(CompileTask* task); | |
1783 | 194 void remove(CompileTask* task); |
195 CompileTask* first() { return _first; } | |
196 CompileTask* last() { return _last; } | |
0 | 197 |
198 CompileTask* get(); | |
199 | |
200 bool is_empty() const { return _first == NULL; } | |
1783 | 201 int size() const { return _size; } |
0 | 202 |
203 void print(); | |
204 }; | |
205 | |
1783 | 206 // CompileTaskWrapper |
207 // | |
208 // Assign this task to the current thread. Deallocate the task | |
209 // when the compilation is complete. | |
210 class CompileTaskWrapper : StackObj { | |
211 public: | |
212 CompileTaskWrapper(CompileTask* task); | |
213 ~CompileTaskWrapper(); | |
214 }; | |
215 | |
0 | 216 |
217 // Compilation | |
218 // | |
219 // The broker for all compilation requests. | |
220 class CompileBroker: AllStatic { | |
221 friend class Threads; | |
222 friend class CompileTaskWrapper; | |
223 | |
224 public: | |
225 enum { | |
226 name_buffer_length = 100 | |
227 }; | |
228 | |
229 // Compile type Information for print_last_compile() and CompilerCounters | |
230 enum { no_compile, normal_compile, osr_compile, native_compile }; | |
231 | |
232 private: | |
233 static bool _initialized; | |
234 static volatile bool _should_block; | |
235 | |
1202 | 236 // This flag can be used to stop compilation or turn it back on |
237 static volatile jint _should_compile_new_jobs; | |
238 | |
0 | 239 // The installed compiler(s) |
240 static AbstractCompiler* _compilers[2]; | |
241 | |
242 // These counters are used for assigning id's to each compilation | |
243 static uint _compilation_id; | |
244 static uint _osr_compilation_id; | |
245 static uint _native_compilation_id; | |
246 | |
247 static int _last_compile_type; | |
248 static int _last_compile_level; | |
249 static char _last_method_compiled[name_buffer_length]; | |
250 | |
1783 | 251 static CompileQueue* _c2_method_queue; |
252 static CompileQueue* _c1_method_queue; | |
0 | 253 static CompileTask* _task_free_list; |
254 | |
255 static GrowableArray<CompilerThread*>* _method_threads; | |
256 | |
257 // performance counters | |
258 static PerfCounter* _perf_total_compilation; | |
259 static PerfCounter* _perf_native_compilation; | |
260 static PerfCounter* _perf_osr_compilation; | |
261 static PerfCounter* _perf_standard_compilation; | |
262 | |
263 static PerfCounter* _perf_total_bailout_count; | |
264 static PerfCounter* _perf_total_invalidated_count; | |
265 static PerfCounter* _perf_total_compile_count; | |
266 static PerfCounter* _perf_total_native_compile_count; | |
267 static PerfCounter* _perf_total_osr_compile_count; | |
268 static PerfCounter* _perf_total_standard_compile_count; | |
269 | |
270 static PerfCounter* _perf_sum_osr_bytes_compiled; | |
271 static PerfCounter* _perf_sum_standard_bytes_compiled; | |
272 static PerfCounter* _perf_sum_nmethod_size; | |
273 static PerfCounter* _perf_sum_nmethod_code_size; | |
274 | |
275 static PerfStringVariable* _perf_last_method; | |
276 static PerfStringVariable* _perf_last_failed_method; | |
277 static PerfStringVariable* _perf_last_invalidated_method; | |
278 static PerfVariable* _perf_last_compile_type; | |
279 static PerfVariable* _perf_last_compile_size; | |
280 static PerfVariable* _perf_last_failed_type; | |
281 static PerfVariable* _perf_last_invalidated_type; | |
282 | |
283 // Timers and counters for generating statistics | |
284 static elapsedTimer _t_total_compilation; | |
285 static elapsedTimer _t_osr_compilation; | |
286 static elapsedTimer _t_standard_compilation; | |
287 | |
288 static int _total_bailout_count; | |
289 static int _total_invalidated_count; | |
290 static int _total_compile_count; | |
291 static int _total_native_compile_count; | |
292 static int _total_osr_compile_count; | |
293 static int _total_standard_compile_count; | |
294 | |
295 static int _sum_osr_bytes_compiled; | |
296 static int _sum_standard_bytes_compiled; | |
297 static int _sum_nmethod_size; | |
298 static int _sum_nmethod_code_size; | |
299 | |
300 static CompilerThread* make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS); | |
1783 | 301 static void init_compiler_threads(int c1_compiler_count, int c2_compiler_count); |
0 | 302 static bool compilation_is_complete (methodHandle method, int osr_bci, int comp_level); |
303 static bool compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level); | |
304 static uint assign_compile_id (methodHandle method, int osr_bci); | |
305 static bool is_compile_blocking (methodHandle method, int osr_bci); | |
306 static void preload_classes (methodHandle method, TRAPS); | |
307 | |
308 static CompileTask* create_compile_task(CompileQueue* queue, | |
309 int compile_id, | |
310 methodHandle method, | |
311 int osr_bci, | |
312 int comp_level, | |
313 methodHandle hot_method, | |
314 int hot_count, | |
315 const char* comment, | |
316 bool blocking); | |
317 static CompileTask* allocate_task(); | |
318 static void free_task(CompileTask* task); | |
319 static void wait_for_completion(CompileTask* task); | |
320 | |
321 static void invoke_compiler_on_method(CompileTask* task); | |
322 static void set_last_compile(CompilerThread *thread, methodHandle method, bool is_osr, int comp_level); | |
323 static void push_jni_handle_block(); | |
324 static void pop_jni_handle_block(); | |
325 static bool check_break_at(methodHandle method, int compile_id, bool is_osr); | |
326 static void collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task); | |
327 | |
328 static void compile_method_base(methodHandle method, | |
329 int osr_bci, | |
330 int comp_level, | |
331 methodHandle hot_method, | |
332 int hot_count, | |
333 const char* comment, | |
334 TRAPS); | |
1783 | 335 static CompileQueue* compile_queue(int comp_level) { |
336 if (is_c2_compile(comp_level)) return _c2_method_queue; | |
337 if (is_c1_compile(comp_level)) return _c1_method_queue; | |
338 return NULL; | |
339 } | |
0 | 340 public: |
341 enum { | |
342 // The entry bci used for non-OSR compilations. | |
343 standard_entry_bci = InvocationEntryBci | |
344 }; | |
345 | |
1783 | 346 static AbstractCompiler* compiler(int comp_level) { |
347 if (is_c2_compile(comp_level)) return _compilers[1]; // C2 | |
348 if (is_c1_compile(comp_level)) return _compilers[0]; // C1 | |
349 return NULL; | |
0 | 350 } |
351 | |
1783 | 352 static bool compilation_is_in_queue(methodHandle method, int osr_bci); |
353 static int queue_size(int comp_level) { | |
354 CompileQueue *q = compile_queue(comp_level); | |
355 return q != NULL ? q->size() : 0; | |
356 } | |
0 | 357 static void compilation_init(); |
358 static void init_compiler_thread_log(); | |
1783 | 359 static nmethod* compile_method(methodHandle method, |
360 int osr_bci, | |
361 int comp_level, | |
362 methodHandle hot_method, | |
363 int hot_count, | |
0 | 364 const char* comment, TRAPS); |
365 | |
366 static void compiler_thread_loop(); | |
367 | |
1202 | 368 static uint get_compilation_id() { return _compilation_id; } |
0 | 369 static bool is_idle(); |
370 | |
371 // Set _should_block. | |
372 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
373 static void set_should_block(); | |
374 | |
375 // Call this from the compiler at convenient points, to poll for _should_block. | |
376 static void maybe_block(); | |
377 | |
1202 | 378 enum { |
379 // Flags for toggling compiler activity | |
380 stop_compilation = 0, | |
381 run_compilation = 1 | |
382 }; | |
383 | |
384 static bool should_compile_new_jobs() { return UseCompiler && (_should_compile_new_jobs == run_compilation); } | |
385 static bool set_should_compile_new_jobs(jint new_state) { | |
386 // Return success if the current caller set it | |
387 jint old = Atomic::cmpxchg(new_state, &_should_compile_new_jobs, 1-new_state); | |
388 return (old == (1-new_state)); | |
389 } | |
390 static void handle_full_code_cache(); | |
391 | |
0 | 392 // Return total compilation ticks |
393 static jlong total_compilation_ticks() { | |
394 return _perf_total_compilation != NULL ? _perf_total_compilation->get_value() : 0; | |
395 } | |
396 | |
397 // Print a detailed accounting of compilation time | |
398 static void print_times(); | |
399 | |
400 // Debugging output for failure | |
401 static void print_last_compile(); | |
402 | |
403 static void print_compiler_threads_on(outputStream* st); | |
404 }; | |
1972 | 405 |
406 #endif // SHARE_VM_COMPILER_COMPILEBROKER_HPP |