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annotate src/share/vm/compiler/compileBroker.hpp @ 1783:d5d065957597
6953144: Tiered compilation
Summary: Infrastructure for tiered compilation support (interpreter + c1 + c2) for 32 and 64 bit. Simple tiered policy implementation.
Reviewed-by: kvn, never, phh, twisti
author | iveresov |
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date | Fri, 03 Sep 2010 17:51:07 -0700 |
parents | c18cbe5936b8 |
children | 2d26b0046e0d f95d63e2154a |
rev | line source |
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0 | 1 /* |
1783 | 2 * Copyright (c) 1999, 2010, 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 * | |
1552
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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 | |
25 class nmethod; | |
26 class nmethodLocker; | |
27 | |
28 // CompileTask | |
29 // | |
30 // An entry in the compile queue. It represents a pending or current | |
31 // compilation. | |
32 class CompileTask : public CHeapObj { | |
33 private: | |
34 Monitor* _lock; | |
35 uint _compile_id; | |
36 jobject _method; | |
37 int _osr_bci; | |
38 bool _is_complete; | |
39 bool _is_success; | |
40 bool _is_blocking; | |
41 int _comp_level; | |
42 int _num_inlined_bytecodes; | |
43 nmethodLocker* _code_handle; // holder of eventual result | |
1783 | 44 CompileTask* _next, *_prev; |
0 | 45 |
46 // Fields used for logging why the compilation was initiated: | |
47 jlong _time_queued; // in units of os::elapsed_counter() | |
48 jobject _hot_method; // which method actually triggered this task | |
49 int _hot_count; // information about its invocation counter | |
50 const char* _comment; // more info about the task | |
51 | |
1783 | 52 void print_compilation(outputStream *st, methodOop method, char* method_name); |
0 | 53 public: |
54 CompileTask() { | |
55 _lock = new Monitor(Mutex::nonleaf+2, "CompileTaskLock"); | |
56 } | |
57 | |
58 void initialize(int compile_id, methodHandle method, int osr_bci, int comp_level, | |
59 methodHandle hot_method, int hot_count, const char* comment, | |
60 bool is_blocking); | |
61 | |
62 void free(); | |
63 | |
64 int compile_id() const { return _compile_id; } | |
65 jobject method_handle() const { return _method; } | |
66 int osr_bci() const { return _osr_bci; } | |
67 bool is_complete() const { return _is_complete; } | |
68 bool is_blocking() const { return _is_blocking; } | |
69 bool is_success() const { return _is_success; } | |
70 | |
71 nmethodLocker* code_handle() const { return _code_handle; } | |
72 void set_code_handle(nmethodLocker* l) { _code_handle = l; } | |
73 nmethod* code() const; // _code_handle->code() | |
74 void set_code(nmethod* nm); // _code_handle->set_code(nm) | |
75 | |
76 Monitor* lock() const { return _lock; } | |
77 | |
78 void mark_complete() { _is_complete = true; } | |
79 void mark_success() { _is_success = true; } | |
80 | |
81 int comp_level() { return _comp_level;} | |
82 void set_comp_level(int comp_level) { _comp_level = comp_level;} | |
83 | |
84 int num_inlined_bytecodes() const { return _num_inlined_bytecodes; } | |
85 void set_num_inlined_bytecodes(int n) { _num_inlined_bytecodes = n; } | |
86 | |
87 CompileTask* next() const { return _next; } | |
88 void set_next(CompileTask* next) { _next = next; } | |
1783 | 89 CompileTask* prev() const { return _prev; } |
90 void set_prev(CompileTask* prev) { _prev = prev; } | |
0 | 91 |
92 void print(); | |
93 void print_line(); | |
1783 | 94 |
0 | 95 void print_line_on_error(outputStream* st, char* buf, int buflen); |
96 void log_task(xmlStream* log); | |
97 void log_task_queued(); | |
98 void log_task_start(CompileLog* log); | |
99 void log_task_done(CompileLog* log); | |
100 }; | |
101 | |
102 // CompilerCounters | |
103 // | |
104 // Per Compiler Performance Counters. | |
105 // | |
106 class CompilerCounters : public CHeapObj { | |
107 | |
108 public: | |
109 enum { | |
110 cmname_buffer_length = 160 | |
111 }; | |
112 | |
113 private: | |
114 | |
115 char _current_method[cmname_buffer_length]; | |
116 PerfStringVariable* _perf_current_method; | |
117 | |
118 int _compile_type; | |
119 PerfVariable* _perf_compile_type; | |
120 | |
121 PerfCounter* _perf_time; | |
122 PerfCounter* _perf_compiles; | |
123 | |
124 public: | |
125 CompilerCounters(const char* name, int instance, TRAPS); | |
126 | |
127 // these methods should be called in a thread safe context | |
128 | |
129 void set_current_method(const char* method) { | |
130 strncpy(_current_method, method, (size_t)cmname_buffer_length); | |
131 if (UsePerfData) _perf_current_method->set_value(method); | |
132 } | |
133 | |
134 char* current_method() { return _current_method; } | |
135 | |
136 void set_compile_type(int compile_type) { | |
137 _compile_type = compile_type; | |
138 if (UsePerfData) _perf_compile_type->set_value((jlong)compile_type); | |
139 } | |
140 | |
141 int compile_type() { return _compile_type; } | |
142 | |
143 PerfCounter* time_counter() { return _perf_time; } | |
144 PerfCounter* compile_counter() { return _perf_compiles; } | |
145 }; | |
146 | |
147 // CompileQueue | |
148 // | |
149 // A list of CompileTasks. | |
150 class CompileQueue : public CHeapObj { | |
151 private: | |
152 const char* _name; | |
153 Monitor* _lock; | |
154 | |
155 CompileTask* _first; | |
156 CompileTask* _last; | |
157 | |
1783 | 158 int _size; |
0 | 159 public: |
160 CompileQueue(const char* name, Monitor* lock) { | |
161 _name = name; | |
162 _lock = lock; | |
163 _first = NULL; | |
164 _last = NULL; | |
1783 | 165 _size = 0; |
0 | 166 } |
167 | |
168 const char* name() const { return _name; } | |
169 Monitor* lock() const { return _lock; } | |
170 | |
171 void add(CompileTask* task); | |
1783 | 172 void remove(CompileTask* task); |
173 CompileTask* first() { return _first; } | |
174 CompileTask* last() { return _last; } | |
0 | 175 |
176 CompileTask* get(); | |
177 | |
178 bool is_empty() const { return _first == NULL; } | |
1783 | 179 int size() const { return _size; } |
0 | 180 |
181 void print(); | |
182 }; | |
183 | |
1783 | 184 // CompileTaskWrapper |
185 // | |
186 // Assign this task to the current thread. Deallocate the task | |
187 // when the compilation is complete. | |
188 class CompileTaskWrapper : StackObj { | |
189 public: | |
190 CompileTaskWrapper(CompileTask* task); | |
191 ~CompileTaskWrapper(); | |
192 }; | |
193 | |
0 | 194 |
195 // Compilation | |
196 // | |
197 // The broker for all compilation requests. | |
198 class CompileBroker: AllStatic { | |
199 friend class Threads; | |
200 friend class CompileTaskWrapper; | |
201 | |
202 public: | |
203 enum { | |
204 name_buffer_length = 100 | |
205 }; | |
206 | |
207 // Compile type Information for print_last_compile() and CompilerCounters | |
208 enum { no_compile, normal_compile, osr_compile, native_compile }; | |
209 | |
210 private: | |
211 static bool _initialized; | |
212 static volatile bool _should_block; | |
213 | |
1202 | 214 // This flag can be used to stop compilation or turn it back on |
215 static volatile jint _should_compile_new_jobs; | |
216 | |
0 | 217 // The installed compiler(s) |
218 static AbstractCompiler* _compilers[2]; | |
219 | |
220 // These counters are used for assigning id's to each compilation | |
221 static uint _compilation_id; | |
222 static uint _osr_compilation_id; | |
223 static uint _native_compilation_id; | |
224 | |
225 static int _last_compile_type; | |
226 static int _last_compile_level; | |
227 static char _last_method_compiled[name_buffer_length]; | |
228 | |
1783 | 229 static CompileQueue* _c2_method_queue; |
230 static CompileQueue* _c1_method_queue; | |
0 | 231 static CompileTask* _task_free_list; |
232 | |
233 static GrowableArray<CompilerThread*>* _method_threads; | |
234 | |
235 // performance counters | |
236 static PerfCounter* _perf_total_compilation; | |
237 static PerfCounter* _perf_native_compilation; | |
238 static PerfCounter* _perf_osr_compilation; | |
239 static PerfCounter* _perf_standard_compilation; | |
240 | |
241 static PerfCounter* _perf_total_bailout_count; | |
242 static PerfCounter* _perf_total_invalidated_count; | |
243 static PerfCounter* _perf_total_compile_count; | |
244 static PerfCounter* _perf_total_native_compile_count; | |
245 static PerfCounter* _perf_total_osr_compile_count; | |
246 static PerfCounter* _perf_total_standard_compile_count; | |
247 | |
248 static PerfCounter* _perf_sum_osr_bytes_compiled; | |
249 static PerfCounter* _perf_sum_standard_bytes_compiled; | |
250 static PerfCounter* _perf_sum_nmethod_size; | |
251 static PerfCounter* _perf_sum_nmethod_code_size; | |
252 | |
253 static PerfStringVariable* _perf_last_method; | |
254 static PerfStringVariable* _perf_last_failed_method; | |
255 static PerfStringVariable* _perf_last_invalidated_method; | |
256 static PerfVariable* _perf_last_compile_type; | |
257 static PerfVariable* _perf_last_compile_size; | |
258 static PerfVariable* _perf_last_failed_type; | |
259 static PerfVariable* _perf_last_invalidated_type; | |
260 | |
261 // Timers and counters for generating statistics | |
262 static elapsedTimer _t_total_compilation; | |
263 static elapsedTimer _t_osr_compilation; | |
264 static elapsedTimer _t_standard_compilation; | |
265 | |
266 static int _total_bailout_count; | |
267 static int _total_invalidated_count; | |
268 static int _total_compile_count; | |
269 static int _total_native_compile_count; | |
270 static int _total_osr_compile_count; | |
271 static int _total_standard_compile_count; | |
272 | |
273 static int _sum_osr_bytes_compiled; | |
274 static int _sum_standard_bytes_compiled; | |
275 static int _sum_nmethod_size; | |
276 static int _sum_nmethod_code_size; | |
277 | |
278 static CompilerThread* make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS); | |
1783 | 279 static void init_compiler_threads(int c1_compiler_count, int c2_compiler_count); |
0 | 280 static bool compilation_is_complete (methodHandle method, int osr_bci, int comp_level); |
281 static bool compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level); | |
282 static uint assign_compile_id (methodHandle method, int osr_bci); | |
283 static bool is_compile_blocking (methodHandle method, int osr_bci); | |
284 static void preload_classes (methodHandle method, TRAPS); | |
285 | |
286 static CompileTask* create_compile_task(CompileQueue* queue, | |
287 int compile_id, | |
288 methodHandle method, | |
289 int osr_bci, | |
290 int comp_level, | |
291 methodHandle hot_method, | |
292 int hot_count, | |
293 const char* comment, | |
294 bool blocking); | |
295 static CompileTask* allocate_task(); | |
296 static void free_task(CompileTask* task); | |
297 static void wait_for_completion(CompileTask* task); | |
298 | |
299 static void invoke_compiler_on_method(CompileTask* task); | |
300 static void set_last_compile(CompilerThread *thread, methodHandle method, bool is_osr, int comp_level); | |
301 static void push_jni_handle_block(); | |
302 static void pop_jni_handle_block(); | |
303 static bool check_break_at(methodHandle method, int compile_id, bool is_osr); | |
304 static void collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task); | |
305 | |
306 static void compile_method_base(methodHandle method, | |
307 int osr_bci, | |
308 int comp_level, | |
309 methodHandle hot_method, | |
310 int hot_count, | |
311 const char* comment, | |
312 TRAPS); | |
1783 | 313 static CompileQueue* compile_queue(int comp_level) { |
314 if (is_c2_compile(comp_level)) return _c2_method_queue; | |
315 if (is_c1_compile(comp_level)) return _c1_method_queue; | |
316 return NULL; | |
317 } | |
0 | 318 public: |
319 enum { | |
320 // The entry bci used for non-OSR compilations. | |
321 standard_entry_bci = InvocationEntryBci | |
322 }; | |
323 | |
1783 | 324 static AbstractCompiler* compiler(int comp_level) { |
325 if (is_c2_compile(comp_level)) return _compilers[1]; // C2 | |
326 if (is_c1_compile(comp_level)) return _compilers[0]; // C1 | |
327 return NULL; | |
0 | 328 } |
329 | |
1783 | 330 static bool compilation_is_in_queue(methodHandle method, int osr_bci); |
331 static int queue_size(int comp_level) { | |
332 CompileQueue *q = compile_queue(comp_level); | |
333 return q != NULL ? q->size() : 0; | |
334 } | |
0 | 335 static void compilation_init(); |
336 static void init_compiler_thread_log(); | |
1783 | 337 static nmethod* compile_method(methodHandle method, |
338 int osr_bci, | |
339 int comp_level, | |
340 methodHandle hot_method, | |
341 int hot_count, | |
0 | 342 const char* comment, TRAPS); |
343 | |
344 static void compiler_thread_loop(); | |
345 | |
1202 | 346 static uint get_compilation_id() { return _compilation_id; } |
0 | 347 static bool is_idle(); |
348 | |
349 // Set _should_block. | |
350 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
351 static void set_should_block(); | |
352 | |
353 // Call this from the compiler at convenient points, to poll for _should_block. | |
354 static void maybe_block(); | |
355 | |
1202 | 356 enum { |
357 // Flags for toggling compiler activity | |
358 stop_compilation = 0, | |
359 run_compilation = 1 | |
360 }; | |
361 | |
362 static bool should_compile_new_jobs() { return UseCompiler && (_should_compile_new_jobs == run_compilation); } | |
363 static bool set_should_compile_new_jobs(jint new_state) { | |
364 // Return success if the current caller set it | |
365 jint old = Atomic::cmpxchg(new_state, &_should_compile_new_jobs, 1-new_state); | |
366 return (old == (1-new_state)); | |
367 } | |
368 static void handle_full_code_cache(); | |
369 | |
0 | 370 // Return total compilation ticks |
371 static jlong total_compilation_ticks() { | |
372 return _perf_total_compilation != NULL ? _perf_total_compilation->get_value() : 0; | |
373 } | |
374 | |
375 // Print a detailed accounting of compilation time | |
376 static void print_times(); | |
377 | |
378 // Debugging output for failure | |
379 static void print_last_compile(); | |
380 | |
381 static void print_compiler_threads_on(outputStream* st); | |
382 }; |