Mercurial > hg > truffle
annotate src/share/vm/compiler/compileBroker.cpp @ 16145:237508bd73b9
when Graal bootstrap is enabled (explicitly or implicitly), allocate same number of Graal compiler threads in -UseGraalCompilationQueue as in +UseGraalCompilationQueue
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 19 Jun 2014 23:41:46 +0200 |
parents | a87f6927d73e |
children | 404d2e86488a |
rev | line source |
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0 | 1 /* |
10405 | 2 * Copyright (c) 1999, 2013, 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 #include "precompiled.hpp" |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "classfile/vmSymbols.hpp" | |
28 #include "code/codeCache.hpp" | |
29 #include "compiler/compileBroker.hpp" | |
30 #include "compiler/compileLog.hpp" | |
31 #include "compiler/compilerOracle.hpp" | |
32 #include "interpreter/linkResolver.hpp" | |
33 #include "memory/allocation.inline.hpp" | |
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34 #include "oops/methodData.hpp" |
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35 #include "oops/method.hpp" |
1972 | 36 #include "oops/oop.inline.hpp" |
37 #include "prims/nativeLookup.hpp" | |
38 #include "runtime/arguments.hpp" | |
39 #include "runtime/compilationPolicy.hpp" | |
40 #include "runtime/init.hpp" | |
41 #include "runtime/interfaceSupport.hpp" | |
42 #include "runtime/javaCalls.hpp" | |
43 #include "runtime/os.hpp" | |
44 #include "runtime/sharedRuntime.hpp" | |
45 #include "runtime/sweeper.hpp" | |
10405 | 46 #include "trace/tracing.hpp" |
1972 | 47 #include "utilities/dtrace.hpp" |
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48 #include "utilities/events.hpp" |
1972 | 49 #ifdef COMPILER1 |
50 #include "c1/c1_Compiler.hpp" | |
51 #endif | |
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52 #ifdef GRAAL |
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53 #include "graal/graalCompiler.hpp" |
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54 #endif |
1972 | 55 #ifdef COMPILER2 |
56 #include "opto/c2compiler.hpp" | |
57 #endif | |
58 #ifdef SHARK | |
59 #include "shark/sharkCompiler.hpp" | |
60 #endif | |
0 | 61 |
62 #ifdef DTRACE_ENABLED | |
63 | |
64 // Only bother with this argument setup if dtrace is available | |
65 | |
14909 | 66 #ifndef USDT2 |
67 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, | |
68 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
69 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
70 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
71 | |
72 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(method, comp_name) \ | |
73 { \ | |
74 Symbol* klass_name = (method)->klass_name(); \ | |
75 Symbol* name = (method)->name(); \ | |
76 Symbol* signature = (method)->signature(); \ | |
77 HS_DTRACE_PROBE8(hotspot, method__compile__begin, \ | |
78 comp_name, strlen(comp_name), \ | |
79 klass_name->bytes(), klass_name->utf8_length(), \ | |
80 name->bytes(), name->utf8_length(), \ | |
81 signature->bytes(), signature->utf8_length()); \ | |
82 } | |
83 | |
84 #define DTRACE_METHOD_COMPILE_END_PROBE(method, comp_name, success) \ | |
85 { \ | |
86 Symbol* klass_name = (method)->klass_name(); \ | |
87 Symbol* name = (method)->name(); \ | |
88 Symbol* signature = (method)->signature(); \ | |
89 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ | |
90 comp_name, strlen(comp_name), \ | |
91 klass_name->bytes(), klass_name->utf8_length(), \ | |
92 name->bytes(), name->utf8_length(), \ | |
93 signature->bytes(), signature->utf8_length(), (success)); \ | |
94 } | |
95 | |
96 #else /* USDT2 */ | |
97 | |
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98 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(method, comp_name) \ |
4006 | 99 { \ |
100 Symbol* klass_name = (method)->klass_name(); \ | |
101 Symbol* name = (method)->name(); \ | |
102 Symbol* signature = (method)->signature(); \ | |
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103 HOTSPOT_METHOD_COMPILE_BEGIN( \ |
14909 | 104 comp_name, strlen(comp_name), \ |
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105 (char *) klass_name->bytes(), klass_name->utf8_length(), \ |
4006 | 106 (char *) name->bytes(), name->utf8_length(), \ |
107 (char *) signature->bytes(), signature->utf8_length()); \ | |
108 } | |
109 | |
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110 #define DTRACE_METHOD_COMPILE_END_PROBE(method, comp_name, success) \ |
4006 | 111 { \ |
112 Symbol* klass_name = (method)->klass_name(); \ | |
113 Symbol* name = (method)->name(); \ | |
114 Symbol* signature = (method)->signature(); \ | |
115 HOTSPOT_METHOD_COMPILE_END( \ | |
14909 | 116 comp_name, strlen(comp_name), \ |
4006 | 117 (char *) klass_name->bytes(), klass_name->utf8_length(), \ |
118 (char *) name->bytes(), name->utf8_length(), \ | |
119 (char *) signature->bytes(), signature->utf8_length(), (success)); \ | |
120 } | |
14909 | 121 #endif /* USDT2 */ |
4006 | 122 |
0 | 123 #else // ndef DTRACE_ENABLED |
124 | |
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125 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(method, comp_name) |
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126 #define DTRACE_METHOD_COMPILE_END_PROBE(method, comp_name, success) |
0 | 127 |
128 #endif // ndef DTRACE_ENABLED | |
129 | |
130 bool CompileBroker::_initialized = false; | |
131 volatile bool CompileBroker::_should_block = false; | |
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132 volatile jint CompileBroker::_print_compilation_warning = 0; |
1202 | 133 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
0 | 134 |
135 // The installed compiler(s) | |
136 AbstractCompiler* CompileBroker::_compilers[2]; | |
137 | |
14909 | 138 // These counters are used for assigning id's to each compilation |
139 uint CompileBroker::_compilation_id = 0; | |
140 uint CompileBroker::_osr_compilation_id = 0; | |
0 | 141 |
142 // Debugging information | |
143 int CompileBroker::_last_compile_type = no_compile; | |
144 int CompileBroker::_last_compile_level = CompLevel_none; | |
145 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
146 | |
147 // Performance counters | |
148 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
149 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
150 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
151 | |
152 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
153 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
154 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
155 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
156 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
157 | |
158 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
159 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
160 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
161 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
162 | |
163 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
164 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
165 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
166 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
167 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
168 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
169 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
170 | |
171 // Timers and counters for generating statistics | |
172 elapsedTimer CompileBroker::_t_total_compilation; | |
173 elapsedTimer CompileBroker::_t_osr_compilation; | |
174 elapsedTimer CompileBroker::_t_standard_compilation; | |
175 | |
176 int CompileBroker::_total_bailout_count = 0; | |
177 int CompileBroker::_total_invalidated_count = 0; | |
178 int CompileBroker::_total_compile_count = 0; | |
179 int CompileBroker::_total_osr_compile_count = 0; | |
180 int CompileBroker::_total_standard_compile_count = 0; | |
181 | |
182 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
183 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
184 int CompileBroker::_sum_nmethod_size = 0; | |
185 int CompileBroker::_sum_nmethod_code_size = 0; | |
186 | |
10405 | 187 long CompileBroker::_peak_compilation_time = 0; |
188 | |
189 CompileQueue* CompileBroker::_c2_method_queue = NULL; | |
190 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
191 CompileTask* CompileBroker::_task_free_list = NULL; | |
0 | 192 |
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193 GrowableArray<CompilerThread*>* CompileBroker::_compiler_threads = NULL; |
0 | 194 |
195 | |
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196 class CompilationLog : public StringEventLog { |
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197 public: |
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198 CompilationLog() : StringEventLog("Compilation events") { |
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199 } |
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200 |
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201 void log_compile(JavaThread* thread, CompileTask* task) { |
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202 StringLogMessage lm; |
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203 stringStream sstr = lm.stream(); |
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204 // msg.time_stamp().update_to(tty->time_stamp().ticks()); |
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205 task->print_compilation(&sstr, NULL, true); |
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206 log(thread, "%s", (const char*)lm); |
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207 } |
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208 |
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209 void log_nmethod(JavaThread* thread, nmethod* nm) { |
4944 | 210 log(thread, "nmethod %d%s " INTPTR_FORMAT " code ["INTPTR_FORMAT ", " INTPTR_FORMAT "]", |
211 nm->compile_id(), nm->is_osr_method() ? "%" : "", | |
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212 nm, nm->code_begin(), nm->code_end()); |
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213 } |
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214 |
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215 void log_failure(JavaThread* thread, CompileTask* task, const char* reason, const char* retry_message) { |
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216 StringLogMessage lm; |
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217 lm.print("%4d COMPILE SKIPPED: %s", task->compile_id(), reason); |
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218 if (retry_message != NULL) { |
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219 lm.append(" (%s)", retry_message); |
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220 } |
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221 lm.print("\n"); |
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222 log(thread, "%s", (const char*)lm); |
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223 } |
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224 }; |
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225 |
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226 static CompilationLog* _compilation_log = NULL; |
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227 |
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228 void compileBroker_init() { |
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229 if (LogEvents) { |
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230 _compilation_log = new CompilationLog(); |
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231 } |
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232 } |
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233 |
0 | 234 CompileTaskWrapper::CompileTaskWrapper(CompileTask* task) { |
235 CompilerThread* thread = CompilerThread::current(); | |
236 thread->set_task(task); | |
237 CompileLog* log = thread->log(); | |
238 if (log != NULL) task->log_task_start(log); | |
239 } | |
240 | |
241 CompileTaskWrapper::~CompileTaskWrapper() { | |
242 CompilerThread* thread = CompilerThread::current(); | |
243 CompileTask* task = thread->task(); | |
244 CompileLog* log = thread->log(); | |
245 if (log != NULL) task->log_task_done(log); | |
246 thread->set_task(NULL); | |
247 task->set_code_handle(NULL); | |
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248 thread->set_env(NULL); |
0 | 249 if (task->is_blocking()) { |
250 MutexLocker notifier(task->lock(), thread); | |
251 task->mark_complete(); | |
252 // Notify the waiting thread that the compilation has completed. | |
253 task->lock()->notify_all(); | |
254 } else { | |
255 task->mark_complete(); | |
256 | |
257 // By convention, the compiling thread is responsible for | |
258 // recycling a non-blocking CompileTask. | |
259 CompileBroker::free_task(task); | |
260 } | |
261 } | |
262 | |
263 | |
264 // ------------------------------------------------------------------ | |
265 // CompileTask::initialize | |
266 void CompileTask::initialize(int compile_id, | |
267 methodHandle method, | |
268 int osr_bci, | |
269 int comp_level, | |
270 methodHandle hot_method, | |
271 int hot_count, | |
272 const char* comment, | |
273 bool is_blocking) { | |
274 assert(!_lock->is_locked(), "bad locking"); | |
275 | |
276 _compile_id = compile_id; | |
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277 _method = method(); |
7409 | 278 _method_holder = JNIHandles::make_global(method->method_holder()->klass_holder()); |
0 | 279 _osr_bci = osr_bci; |
280 _is_blocking = is_blocking; | |
281 _comp_level = comp_level; | |
282 _num_inlined_bytecodes = 0; | |
283 | |
284 _is_complete = false; | |
285 _is_success = false; | |
286 _code_handle = NULL; | |
287 | |
288 _hot_method = NULL; | |
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289 _hot_method_holder = NULL; |
0 | 290 _hot_count = hot_count; |
291 _time_queued = 0; // tidy | |
292 _comment = comment; | |
293 | |
294 if (LogCompilation) { | |
295 _time_queued = os::elapsed_counter(); | |
296 if (hot_method.not_null()) { | |
297 if (hot_method == method) { | |
298 _hot_method = _method; | |
299 } else { | |
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300 _hot_method = hot_method(); |
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301 // only add loader or mirror if different from _method_holder |
7409 | 302 _hot_method_holder = JNIHandles::make_global(hot_method->method_holder()->klass_holder()); |
0 | 303 } |
304 } | |
305 } | |
306 | |
307 _next = NULL; | |
308 } | |
309 | |
310 // ------------------------------------------------------------------ | |
311 // CompileTask::code/set_code | |
312 nmethod* CompileTask::code() const { | |
313 if (_code_handle == NULL) return NULL; | |
314 return _code_handle->code(); | |
315 } | |
316 void CompileTask::set_code(nmethod* nm) { | |
317 if (_code_handle == NULL && nm == NULL) return; | |
318 guarantee(_code_handle != NULL, ""); | |
319 _code_handle->set_code(nm); | |
320 if (nm == NULL) _code_handle = NULL; // drop the handle also | |
321 } | |
322 | |
323 // ------------------------------------------------------------------ | |
324 // CompileTask::free | |
325 void CompileTask::free() { | |
326 set_code(NULL); | |
327 assert(!_lock->is_locked(), "Should not be locked when freed"); | |
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328 JNIHandles::destroy_global(_method_holder); |
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329 JNIHandles::destroy_global(_hot_method_holder); |
0 | 330 } |
331 | |
332 | |
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333 void CompileTask::mark_on_stack() { |
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334 // Mark these methods as something redefine classes cannot remove. |
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335 _method->set_on_stack(true); |
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336 if (_hot_method != NULL) { |
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337 _hot_method->set_on_stack(true); |
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338 } |
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339 } |
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340 |
0 | 341 // ------------------------------------------------------------------ |
342 // CompileTask::print | |
343 void CompileTask::print() { | |
344 tty->print("<CompileTask compile_id=%d ", _compile_id); | |
345 tty->print("method="); | |
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346 _method->print_name(tty); |
0 | 347 tty->print_cr(" osr_bci=%d is_blocking=%s is_complete=%s is_success=%s>", |
348 _osr_bci, bool_to_str(_is_blocking), | |
349 bool_to_str(_is_complete), bool_to_str(_is_success)); | |
350 } | |
351 | |
1783 | 352 |
0 | 353 // ------------------------------------------------------------------ |
354 // CompileTask::print_line_on_error | |
355 // | |
356 // This function is called by fatal error handler when the thread | |
357 // causing troubles is a compiler thread. | |
358 // | |
359 // Do not grab any lock, do not allocate memory. | |
360 // | |
361 // Otherwise it's the same as CompileTask::print_line() | |
362 // | |
363 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) { | |
364 // print compiler name | |
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365 st->print("%s:", CompileBroker::compiler_name(comp_level())); |
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366 print_compilation(st); |
0 | 367 } |
368 | |
369 // ------------------------------------------------------------------ | |
370 // CompileTask::print_line | |
371 void CompileTask::print_line() { | |
372 ttyLocker ttyl; // keep the following output all in one block | |
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373 print_compilation(); |
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374 } |
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375 |
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376 |
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377 // ------------------------------------------------------------------ |
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378 // CompileTask::print_compilation_impl |
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379 void CompileTask::print_compilation_impl(outputStream* st, Method* method, int compile_id, int comp_level, |
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380 bool is_osr_method, int osr_bci, bool is_blocking, |
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381 const char* msg, bool short_form) { |
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382 if (!short_form) { |
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383 st->print("%7d ", (int) st->time_stamp().milliseconds()); // print timestamp |
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384 } |
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385 // print compiler name if requested |
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386 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler_name(comp_level)); |
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387 st->print("%4d ", compile_id); // print compilation number |
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388 |
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389 // For unloaded methods the transition to zombie occurs after the |
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390 // method is cleared so it's impossible to report accurate |
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391 // information for that case. |
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392 bool is_synchronized = false; |
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393 bool has_exception_handler = false; |
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394 bool is_native = false; |
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395 if (method != NULL) { |
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396 is_synchronized = method->is_synchronized(); |
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397 has_exception_handler = method->has_exception_handler(); |
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398 is_native = method->is_native(); |
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399 } |
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400 // method attributes |
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401 const char compile_type = is_osr_method ? '%' : ' '; |
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402 const char sync_char = is_synchronized ? 's' : ' '; |
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403 const char exception_char = has_exception_handler ? '!' : ' '; |
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404 const char blocking_char = is_blocking ? 'b' : ' '; |
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405 const char native_char = is_native ? 'n' : ' '; |
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406 |
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407 // print method attributes |
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408 st->print("%c%c%c%c%c ", compile_type, sync_char, exception_char, blocking_char, native_char); |
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409 |
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410 if (TieredCompilation) { |
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411 if (comp_level != -1) st->print("%d ", comp_level); |
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412 else st->print("- "); |
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413 } |
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414 st->print(" "); // more indent |
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415 |
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416 if (method == NULL) { |
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417 st->print("(method)"); |
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418 } else { |
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419 method->print_short_name(st); |
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420 if (is_osr_method) { |
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421 st->print(" @ %d", osr_bci); |
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422 } |
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423 if (method->is_native()) |
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424 st->print(" (native)"); |
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425 else |
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426 st->print(" (%d bytes)", method->code_size()); |
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427 } |
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428 |
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429 if (msg != NULL) { |
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430 st->print(" %s", msg); |
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431 } |
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432 if (!short_form) { |
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433 st->cr(); |
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434 } |
0 | 435 } |
436 | |
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437 // ------------------------------------------------------------------ |
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438 // CompileTask::print_inlining |
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439 void CompileTask::print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg) { |
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440 // 1234567 |
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441 st->print(" "); // print timestamp |
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442 // 1234 |
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443 st->print(" "); // print compilation number |
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444 |
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445 // method attributes |
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446 if (method->is_loaded()) { |
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447 const char sync_char = method->is_synchronized() ? 's' : ' '; |
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448 const char exception_char = method->has_exception_handlers() ? '!' : ' '; |
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449 const char monitors_char = method->has_monitor_bytecodes() ? 'm' : ' '; |
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450 |
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451 // print method attributes |
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452 st->print(" %c%c%c ", sync_char, exception_char, monitors_char); |
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453 } else { |
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454 // %s!bn |
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455 st->print(" "); // print method attributes |
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456 } |
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457 |
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458 if (TieredCompilation) { |
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459 st->print(" "); |
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460 } |
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461 st->print(" "); // more indent |
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462 st->print(" "); // initial inlining indent |
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463 |
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464 for (int i = 0; i < inline_level; i++) st->print(" "); |
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465 |
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466 st->print("@ %d ", bci); // print bci |
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467 method->print_short_name(st); |
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468 if (method->is_loaded()) |
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469 st->print(" (%d bytes)", method->code_size()); |
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470 else |
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471 st->print(" (not loaded)"); |
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472 |
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473 if (msg != NULL) { |
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474 st->print(" %s", msg); |
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475 } |
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476 st->cr(); |
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477 } |
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478 |
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479 // ------------------------------------------------------------------ |
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480 // CompileTask::print_inline_indent |
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481 void CompileTask::print_inline_indent(int inline_level, outputStream* st) { |
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482 // 1234567 |
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483 st->print(" "); // print timestamp |
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484 // 1234 |
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485 st->print(" "); // print compilation number |
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486 // %s!bn |
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487 st->print(" "); // print method attributes |
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488 if (TieredCompilation) { |
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489 st->print(" "); |
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490 } |
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491 st->print(" "); // more indent |
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492 st->print(" "); // initial inlining indent |
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493 for (int i = 0; i < inline_level; i++) st->print(" "); |
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494 } |
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495 |
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496 // ------------------------------------------------------------------ |
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497 // CompileTask::print_compilation |
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498 void CompileTask::print_compilation(outputStream* st, const char* msg, bool short_form) { |
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499 bool is_osr_method = osr_bci() != InvocationEntryBci; |
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500 print_compilation_impl(st, method(), compile_id(), comp_level(), is_osr_method, osr_bci(), is_blocking(), msg, short_form); |
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501 } |
0 | 502 |
503 // ------------------------------------------------------------------ | |
504 // CompileTask::log_task | |
505 void CompileTask::log_task(xmlStream* log) { | |
506 Thread* thread = Thread::current(); | |
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507 methodHandle method(thread, this->method()); |
0 | 508 ResourceMark rm(thread); |
509 | |
510 // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'> | |
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511 log->print(" compile_id='%d'", _compile_id); |
0 | 512 if (_osr_bci != CompileBroker::standard_entry_bci) { |
513 log->print(" compile_kind='osr'"); // same as nmethod::compile_kind | |
514 } // else compile_kind='c2c' | |
515 if (!method.is_null()) log->method(method); | |
516 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
517 log->print(" osr_bci='%d'", _osr_bci); | |
518 } | |
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519 // Always print the level in tiered. |
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520 if (_comp_level != CompLevel_highest_tier || TieredCompilation) { |
0 | 521 log->print(" level='%d'", _comp_level); |
522 } | |
523 if (_is_blocking) { | |
524 log->print(" blocking='1'"); | |
525 } | |
526 log->stamp(); | |
527 } | |
528 | |
529 | |
530 // ------------------------------------------------------------------ | |
531 // CompileTask::log_task_queued | |
532 void CompileTask::log_task_queued() { | |
533 Thread* thread = Thread::current(); | |
534 ttyLocker ttyl; | |
535 ResourceMark rm(thread); | |
536 | |
537 xtty->begin_elem("task_queued"); | |
538 log_task(xtty); | |
539 if (_comment != NULL) { | |
540 xtty->print(" comment='%s'", _comment); | |
541 } | |
542 if (_hot_method != NULL) { | |
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543 methodHandle hot(thread, _hot_method); |
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544 methodHandle method(thread, _method); |
0 | 545 if (hot() != method()) { |
546 xtty->method(hot); | |
547 } | |
548 } | |
549 if (_hot_count != 0) { | |
550 xtty->print(" hot_count='%d'", _hot_count); | |
551 } | |
552 xtty->end_elem(); | |
553 } | |
554 | |
555 | |
556 // ------------------------------------------------------------------ | |
557 // CompileTask::log_task_start | |
558 void CompileTask::log_task_start(CompileLog* log) { | |
559 log->begin_head("task"); | |
560 log_task(log); | |
561 log->end_head(); | |
562 } | |
563 | |
564 | |
565 // ------------------------------------------------------------------ | |
566 // CompileTask::log_task_done | |
567 void CompileTask::log_task_done(CompileLog* log) { | |
568 Thread* thread = Thread::current(); | |
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569 methodHandle method(thread, this->method()); |
0 | 570 ResourceMark rm(thread); |
571 | |
572 // <task_done ... stamp='1.234'> </task> | |
573 nmethod* nm = code(); | |
574 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
1748 | 575 _is_success, nm == NULL ? 0 : nm->content_size(), |
0 | 576 method->invocation_count()); |
577 int bec = method->backedge_count(); | |
578 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
579 // Note: "_is_complete" is about to be set, but is not. | |
580 if (_num_inlined_bytecodes != 0) { | |
581 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
582 } | |
583 log->stamp(); | |
584 log->end_elem(); | |
585 log->tail("task"); | |
586 log->clear_identities(); // next task will have different CI | |
587 if (log->unflushed_count() > 2000) { | |
588 log->flush(); | |
589 } | |
590 log->mark_file_end(); | |
591 } | |
592 | |
593 | |
594 | |
595 // Add a CompileTask to a CompileQueue | |
596 void CompileQueue::add(CompileTask* task) { | |
597 assert(lock()->owned_by_self(), "must own lock"); | |
598 | |
599 task->set_next(NULL); | |
1783 | 600 task->set_prev(NULL); |
0 | 601 |
602 if (_last == NULL) { | |
603 // The compile queue is empty. | |
604 assert(_first == NULL, "queue is empty"); | |
605 _first = task; | |
606 _last = task; | |
607 } else { | |
608 // Append the task to the queue. | |
609 assert(_last->next() == NULL, "not last"); | |
610 _last->set_next(task); | |
1783 | 611 task->set_prev(_last); |
0 | 612 _last = task; |
613 } | |
1783 | 614 ++_size; |
0 | 615 |
616 // Mark the method as being in the compile queue. | |
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617 task->method()->set_queued_for_compilation(); |
0 | 618 |
619 if (CIPrintCompileQueue) { | |
620 print(); | |
621 } | |
622 | |
623 if (LogCompilation && xtty != NULL) { | |
624 task->log_task_queued(); | |
625 } | |
626 | |
627 // Notify CompilerThreads that a task is available. | |
1783 | 628 lock()->notify_all(); |
0 | 629 } |
630 | |
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631 void CompileQueue::delete_all() { |
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632 assert(lock()->owned_by_self(), "must own lock"); |
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633 if (_first != NULL) { |
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634 for (CompileTask* task = _first; task != NULL; task = task->next()) { |
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635 delete task; |
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636 } |
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637 _first = NULL; |
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638 } |
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639 } |
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640 |
0 | 641 // ------------------------------------------------------------------ |
642 // CompileQueue::get | |
643 // | |
644 // Get the next CompileTask from a CompileQueue | |
645 CompileTask* CompileQueue::get() { | |
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646 NMethodSweeper::possibly_sweep(); |
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647 |
0 | 648 MutexLocker locker(lock()); |
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649 // If _first is NULL we have no more compile jobs. There are two reasons for |
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650 // having no compile jobs: First, we compiled everything we wanted. Second, |
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651 // we ran out of code cache so compilation has been disabled. In the latter |
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652 // case we perform code cache sweeps to free memory such that we can re-enable |
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653 // compilation. |
0 | 654 while (_first == NULL) { |
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655 // Exit loop if compilation is disabled forever |
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656 if (CompileBroker::is_compilation_disabled_forever()) { |
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657 return NULL; |
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658 } |
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659 |
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660 if (UseCodeCacheFlushing && !CompileBroker::should_compile_new_jobs()) { |
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661 // Wait a certain amount of time to possibly do another sweep. |
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662 // We must wait until stack scanning has happened so that we can |
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663 // transition a method's state from 'not_entrant' to 'zombie'. |
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664 long wait_time = NmethodSweepCheckInterval * 1000; |
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665 if (FLAG_IS_DEFAULT(NmethodSweepCheckInterval)) { |
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666 // Only one thread at a time can do sweeping. Scale the |
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667 // wait time according to the number of compiler threads. |
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668 // As a result, the next sweep is likely to happen every 100ms |
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669 // with an arbitrary number of threads that do sweeping. |
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670 wait_time = 100 * CICompilerCount; |
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671 } |
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672 bool timeout = lock()->wait(!Mutex::_no_safepoint_check_flag, wait_time); |
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673 if (timeout) { |
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674 MutexUnlocker ul(lock()); |
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675 NMethodSweeper::possibly_sweep(); |
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676 } |
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677 } else { |
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678 // If there are no compilation tasks and we can compile new jobs |
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679 // (i.e., there is enough free space in the code cache) there is |
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680 // no need to invoke the sweeper. As a result, the hotness of methods |
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681 // remains unchanged. This behavior is desired, since we want to keep |
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682 // the stable state, i.e., we do not want to evict methods from the |
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683 // code cache if it is unnecessary. |
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684 // We need a timed wait here, since compiler threads can exit if compilation |
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685 // is disabled forever. We use 5 seconds wait time; the exiting of compiler threads |
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686 // is not critical and we do not want idle compiler threads to wake up too often. |
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687 lock()->wait(!Mutex::_no_safepoint_check_flag, 5*1000); |
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688 } |
0 | 689 } |
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690 |
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691 if (CompileBroker::is_compilation_disabled_forever()) { |
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692 return NULL; |
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693 } |
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694 |
1783 | 695 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
696 remove(task); | |
697 return task; | |
698 } | |
0 | 699 |
1783 | 700 void CompileQueue::remove(CompileTask* task) |
701 { | |
702 assert(lock()->owned_by_self(), "must own lock"); | |
703 if (task->prev() != NULL) { | |
704 task->prev()->set_next(task->next()); | |
705 } else { | |
706 // max is the first element | |
707 assert(task == _first, "Sanity"); | |
708 _first = task->next(); | |
0 | 709 } |
710 | |
1783 | 711 if (task->next() != NULL) { |
712 task->next()->set_prev(task->prev()); | |
713 } else { | |
714 // max is the last element | |
715 assert(task == _last, "Sanity"); | |
716 _last = task->prev(); | |
717 } | |
718 --_size; | |
0 | 719 } |
720 | |
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721 // methods in the compile queue need to be marked as used on the stack |
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722 // so that they don't get reclaimed by Redefine Classes |
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723 void CompileQueue::mark_on_stack() { |
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724 CompileTask* task = _first; |
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725 while (task != NULL) { |
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726 task->mark_on_stack(); |
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727 task = task->next(); |
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728 } |
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729 } |
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730 |
0 | 731 // ------------------------------------------------------------------ |
732 // CompileQueue::print | |
733 void CompileQueue::print() { | |
734 tty->print_cr("Contents of %s", name()); | |
735 tty->print_cr("----------------------"); | |
736 CompileTask* task = _first; | |
737 while (task != NULL) { | |
738 task->print_line(); | |
739 task = task->next(); | |
740 } | |
741 tty->print_cr("----------------------"); | |
742 } | |
743 | |
744 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
745 | |
746 _current_method[0] = '\0'; | |
747 _compile_type = CompileBroker::no_compile; | |
748 | |
749 if (UsePerfData) { | |
750 ResourceMark rm; | |
751 | |
752 // create the thread instance name space string - don't create an | |
753 // instance subspace if instance is -1 - keeps the adapterThread | |
754 // counters from having a ".0" namespace. | |
755 const char* thread_i = (instance == -1) ? thread_name : | |
756 PerfDataManager::name_space(thread_name, instance); | |
757 | |
758 | |
759 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
760 _perf_current_method = | |
761 PerfDataManager::create_string_variable(SUN_CI, name, | |
762 cmname_buffer_length, | |
763 _current_method, CHECK); | |
764 | |
765 name = PerfDataManager::counter_name(thread_i, "type"); | |
766 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
767 PerfData::U_None, | |
768 (jlong)_compile_type, | |
769 CHECK); | |
770 | |
771 name = PerfDataManager::counter_name(thread_i, "time"); | |
772 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
773 PerfData::U_Ticks, CHECK); | |
774 | |
775 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
776 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
777 PerfData::U_Events, CHECK); | |
778 } | |
779 } | |
780 | |
781 // ------------------------------------------------------------------ | |
782 // CompileBroker::compilation_init | |
783 // | |
784 // Initialize the Compilation object | |
785 void CompileBroker::compilation_init() { | |
786 _last_method_compiled[0] = '\0'; | |
787 | |
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788 // No need to initialize compilation system if we do not use it. |
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789 if (!UseCompiler) { |
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790 return; |
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791 } |
1970 | 792 #ifndef SHARK |
0 | 793 // Set the interface to the current compiler(s). |
1783 | 794 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
795 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
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796 #ifdef GRAAL |
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797 GraalCompiler* graal = new GraalCompiler(); |
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798 #endif |
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799 |
0 | 800 #ifdef COMPILER1 |
1783 | 801 if (c1_count > 0) { |
802 _compilers[0] = new Compiler(); | |
803 } | |
0 | 804 #endif // COMPILER1 |
805 | |
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806 #if defined(COMPILERGRAAL) |
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807 _compilers[1] = graal; |
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808 if (UseGraalCompilationQueue) { |
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809 c2_count = 0; |
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810 } else { |
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811 if (FLAG_IS_DEFAULT(GraalThreads)) { |
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812 if (!TieredCompilation && FLAG_IS_DEFAULT(BootstrapGraal) || BootstrapGraal) { |
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813 // Graal will bootstrap so give it the same number of threads |
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814 // as we would give the Java based compilation queue. |
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815 c2_count = os::active_processor_count(); |
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816 } |
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817 } else { |
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818 c2_count = GraalThreads; |
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819 } |
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820 } |
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821 #endif // COMPILERGRAAL |
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822 |
0 | 823 #ifdef COMPILER2 |
1783 | 824 if (c2_count > 0) { |
825 _compilers[1] = new C2Compiler(); | |
826 } | |
0 | 827 #endif // COMPILER2 |
1970 | 828 #else // SHARK |
829 int c1_count = 0; | |
830 int c2_count = 1; | |
831 | |
832 _compilers[1] = new SharkCompiler(); | |
833 #endif // SHARK | |
1692 | 834 |
0 | 835 // Initialize the CompileTask free list |
836 _task_free_list = NULL; | |
837 | |
838 // Start the CompilerThreads | |
1783 | 839 init_compiler_threads(c1_count, c2_count); |
0 | 840 // totalTime performance counter is always created as it is required |
841 // by the implementation of java.lang.management.CompilationMBean. | |
842 { | |
843 EXCEPTION_MARK; | |
844 _perf_total_compilation = | |
845 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
846 PerfData::U_Ticks, CHECK); | |
847 } | |
848 | |
849 | |
850 if (UsePerfData) { | |
851 | |
852 EXCEPTION_MARK; | |
853 | |
854 // create the jvmstat performance counters | |
855 _perf_osr_compilation = | |
856 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
857 PerfData::U_Ticks, CHECK); | |
858 | |
859 _perf_standard_compilation = | |
860 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
861 PerfData::U_Ticks, CHECK); | |
862 | |
863 _perf_total_bailout_count = | |
864 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
865 PerfData::U_Events, CHECK); | |
866 | |
867 _perf_total_invalidated_count = | |
868 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
869 PerfData::U_Events, CHECK); | |
870 | |
871 _perf_total_compile_count = | |
872 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
873 PerfData::U_Events, CHECK); | |
874 _perf_total_osr_compile_count = | |
875 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
876 PerfData::U_Events, CHECK); | |
877 | |
878 _perf_total_standard_compile_count = | |
879 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
880 PerfData::U_Events, CHECK); | |
881 | |
882 _perf_sum_osr_bytes_compiled = | |
883 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
884 PerfData::U_Bytes, CHECK); | |
885 | |
886 _perf_sum_standard_bytes_compiled = | |
887 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
888 PerfData::U_Bytes, CHECK); | |
889 | |
890 _perf_sum_nmethod_size = | |
891 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
892 PerfData::U_Bytes, CHECK); | |
893 | |
894 _perf_sum_nmethod_code_size = | |
895 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
896 PerfData::U_Bytes, CHECK); | |
897 | |
898 _perf_last_method = | |
899 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
900 CompilerCounters::cmname_buffer_length, | |
901 "", CHECK); | |
902 | |
903 _perf_last_failed_method = | |
904 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
905 CompilerCounters::cmname_buffer_length, | |
906 "", CHECK); | |
907 | |
908 _perf_last_invalidated_method = | |
909 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
910 CompilerCounters::cmname_buffer_length, | |
911 "", CHECK); | |
912 | |
913 _perf_last_compile_type = | |
914 PerfDataManager::create_variable(SUN_CI, "lastType", | |
915 PerfData::U_None, | |
916 (jlong)CompileBroker::no_compile, | |
917 CHECK); | |
918 | |
919 _perf_last_compile_size = | |
920 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
921 PerfData::U_Bytes, | |
922 (jlong)CompileBroker::no_compile, | |
923 CHECK); | |
924 | |
925 | |
926 _perf_last_failed_type = | |
927 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
928 PerfData::U_None, | |
929 (jlong)CompileBroker::no_compile, | |
930 CHECK); | |
931 | |
932 _perf_last_invalidated_type = | |
933 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
934 PerfData::U_None, | |
935 (jlong)CompileBroker::no_compile, | |
936 CHECK); | |
937 } | |
938 | |
939 _initialized = true; | |
940 } | |
941 | |
942 | |
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943 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, |
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944 AbstractCompiler* comp, TRAPS) { |
0 | 945 CompilerThread* compiler_thread = NULL; |
946 | |
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947 Klass* k = |
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948 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_Thread(), |
0 | 949 true, CHECK_0); |
950 instanceKlassHandle klass (THREAD, k); | |
951 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
952 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
953 | |
954 // Initialize thread_oop to put it into the system threadGroup | |
955 Handle thread_group (THREAD, Universe::system_thread_group()); | |
956 JavaValue result(T_VOID); | |
957 JavaCalls::call_special(&result, thread_oop, | |
958 klass, | |
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959 vmSymbols::object_initializer_name(), |
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960 vmSymbols::threadgroup_string_void_signature(), |
0 | 961 thread_group, |
962 string, | |
963 CHECK_0); | |
964 | |
965 { | |
966 MutexLocker mu(Threads_lock, THREAD); | |
967 compiler_thread = new CompilerThread(queue, counters); | |
968 // At this point the new CompilerThread data-races with this startup | |
969 // thread (which I believe is the primoridal thread and NOT the VM | |
970 // thread). This means Java bytecodes being executed at startup can | |
971 // queue compile jobs which will run at whatever default priority the | |
972 // newly created CompilerThread runs at. | |
973 | |
974 | |
975 // At this point it may be possible that no osthread was created for the | |
976 // JavaThread due to lack of memory. We would have to throw an exception | |
977 // in that case. However, since this must work and we do not allow | |
978 // exceptions anyway, check and abort if this fails. | |
979 | |
980 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
981 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
14909 | 982 "unable to create new native thread"); |
0 | 983 } |
984 | |
985 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
986 | |
987 // Note that this only sets the JavaThread _priority field, which by | |
988 // definition is limited to Java priorities and not OS priorities. | |
989 // The os-priority is set in the CompilerThread startup code itself | |
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990 |
0 | 991 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); |
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992 |
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993 // Note that we cannot call os::set_priority because it expects Java |
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994 // priorities and we are *explicitly* using OS priorities so that it's |
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995 // possible to set the compiler thread priority higher than any Java |
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996 // thread. |
0 | 997 |
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998 int native_prio = CompilerThreadPriority; |
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999 if (native_prio == -1) { |
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1000 if (UseCriticalCompilerThreadPriority) { |
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1001 native_prio = os::java_to_os_priority[CriticalPriority]; |
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1002 } else { |
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1003 native_prio = os::java_to_os_priority[NearMaxPriority]; |
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1004 } |
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1005 } |
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1006 os::set_native_priority(compiler_thread, native_prio); |
0 | 1007 |
1008 java_lang_Thread::set_daemon(thread_oop()); | |
1009 | |
1010 compiler_thread->set_threadObj(thread_oop()); | |
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1011 compiler_thread->set_compiler(comp); |
0 | 1012 Threads::add(compiler_thread); |
1013 Thread::start(compiler_thread); | |
1014 } | |
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1015 |
0 | 1016 // Let go of Threads_lock before yielding |
1017 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
1018 | |
1019 return compiler_thread; | |
1020 } | |
1021 | |
1022 | |
1783 | 1023 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
0 | 1024 EXCEPTION_MARK; |
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1025 #if !defined(ZERO) && !defined(SHARK) && !defined(COMPILERGRAAL) |
1783 | 1026 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
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1027 #endif // !ZERO && !SHARK && !COMPILERGRAAL |
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1028 // Initialize the compilation queue |
1783 | 1029 if (c2_compiler_count > 0) { |
1030 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
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1031 _compilers[1]->set_num_compiler_threads(c2_compiler_count); |
1783 | 1032 } |
1033 if (c1_compiler_count > 0) { | |
1034 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
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1035 _compilers[0]->set_num_compiler_threads(c1_compiler_count); |
1783 | 1036 } |
0 | 1037 |
1783 | 1038 int compiler_count = c1_compiler_count + c2_compiler_count; |
1039 | |
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1040 _compiler_threads = |
6197 | 1041 new (ResourceObj::C_HEAP, mtCompiler) GrowableArray<CompilerThread*>(compiler_count, true); |
0 | 1042 |
1043 char name_buffer[256]; | |
1783 | 1044 for (int i = 0; i < c2_compiler_count; i++) { |
0 | 1045 // Create a name for our thread. |
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1046 sprintf(name_buffer, "%s CompilerThread%d", _compilers[1]->name(), i); |
0 | 1047 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
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1048 // Shark and C2 |
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1049 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, _compilers[1], CHECK); |
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1050 _compiler_threads->append(new_thread); |
0 | 1051 } |
1783 | 1052 |
1053 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
1054 // Create a name for our thread. | |
1055 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
1056 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
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1057 // C1 |
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1058 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, _compilers[0], CHECK); |
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1059 _compiler_threads->append(new_thread); |
1783 | 1060 } |
1061 | |
0 | 1062 if (UsePerfData) { |
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1063 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, compiler_count, CHECK); |
0 | 1064 } |
1065 } | |
1066 | |
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1067 |
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1068 // Set the methods on the stack as on_stack so that redefine classes doesn't |
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1069 // reclaim them |
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1070 void CompileBroker::mark_on_stack() { |
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1071 if (_c2_method_queue != NULL) { |
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1072 _c2_method_queue->mark_on_stack(); |
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1073 } |
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1074 if (_c1_method_queue != NULL) { |
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1075 _c1_method_queue->mark_on_stack(); |
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1076 } |
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1077 } |
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1078 |
0 | 1079 // ------------------------------------------------------------------ |
1080 // CompileBroker::compile_method | |
1081 // | |
1082 // Request compilation of a method. | |
1083 void CompileBroker::compile_method_base(methodHandle method, | |
1084 int osr_bci, | |
1085 int comp_level, | |
1086 methodHandle hot_method, | |
1087 int hot_count, | |
1088 const char* comment, | |
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1089 Thread* thread) { |
0 | 1090 // do nothing if compiler thread(s) is not available |
1091 if (!_initialized ) { | |
1092 return; | |
1093 } | |
1094 | |
1095 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
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1096 assert(method->method_holder()->oop_is_instance(), |
0 | 1097 "sanity check"); |
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1098 assert(!method->method_holder()->is_not_initialized(), |
0 | 1099 "method holder must be initialized"); |
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1100 assert(!method->is_method_handle_intrinsic(), "do not enqueue these guys"); |
0 | 1101 |
1102 if (CIPrintRequests) { | |
1103 tty->print("request: "); | |
1104 method->print_short_name(tty); | |
1105 if (osr_bci != InvocationEntryBci) { | |
1106 tty->print(" osr_bci: %d", osr_bci); | |
1107 } | |
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1108 tty->print(" level: %d comment: %s count: %d", comp_level, comment, hot_count); |
0 | 1109 if (!hot_method.is_null()) { |
1110 tty->print(" hot: "); | |
1111 if (hot_method() != method()) { | |
1112 hot_method->print_short_name(tty); | |
1113 } else { | |
1114 tty->print("yes"); | |
1115 } | |
1116 } | |
1117 tty->cr(); | |
1118 } | |
1119 | |
1120 // A request has been made for compilation. Before we do any | |
1121 // real work, check to see if the method has been compiled | |
1122 // in the meantime with a definitive result. | |
1123 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
1124 return; | |
1125 } | |
1126 | |
2403 | 1127 #ifndef PRODUCT |
1128 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) { | |
1129 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) { | |
1130 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI. | |
1131 return; | |
1132 } | |
1133 } | |
1134 #endif | |
1783 | 1135 |
0 | 1136 // If this method is already in the compile queue, then |
1137 // we do not block the current thread. | |
1138 if (compilation_is_in_queue(method, osr_bci)) { | |
1139 // We may want to decay our counter a bit here to prevent | |
1140 // multiple denied requests for compilation. This is an | |
1141 // open compilation policy issue. Note: The other possibility, | |
1142 // in the case that this is a blocking compile request, is to have | |
1143 // all subsequent blocking requesters wait for completion of | |
1144 // ongoing compiles. Note that in this case we'll need a protocol | |
1145 // for freeing the associated compile tasks. [Or we could have | |
1146 // a single static monitor on which all these waiters sleep.] | |
1147 return; | |
1148 } | |
1149 | |
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1150 // If the requesting thread is holding the pending list lock |
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1151 // then we just return. We can't risk blocking while holding |
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1152 // the pending list lock or a 3-way deadlock may occur |
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1153 // between the reference handler thread, a GC (instigated |
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1154 // by a compiler thread), and compiled method registration. |
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1155 if (InstanceRefKlass::owns_pending_list_lock(JavaThread::current())) { |
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1156 return; |
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1157 } |
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1158 |
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1159 #ifdef COMPILERGRAAL |
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1160 if (UseGraalCompilationQueue) { |
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1161 // In tiered mode we want to only handle highest tier compiles and |
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1162 // in non-tiered mode the default level should be |
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1163 // CompLevel_full_optimization which equals CompLevel_highest_tier. |
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1164 assert(TieredCompilation || comp_level == CompLevel_full_optimization, "incorrect compile level"); |
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1165 assert(CompLevel_full_optimization == CompLevel_highest_tier, "incorrect level definition"); |
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1166 if (comp_level == CompLevel_full_optimization) { |
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1167 JavaThread* javaThread = JavaThread::current(); |
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1168 if (javaThread->can_schedule_graal_compilation()) { |
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1169 bool blockingCompilation = is_compile_blocking(method, osr_bci); |
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1170 NoGraalCompilationScheduling ngcs(javaThread); |
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1171 GraalCompiler::instance()->compile_method(method, osr_bci, NULL, blockingCompilation); |
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1172 } |
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1173 return; |
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1174 } |
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|
1175 assert(TieredCompilation, "should only reach here in tiered mode"); |
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77fbf02f701c
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Doug Simon <doug.simon@oracle.com>
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|
1176 } |
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7ad529321294
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Bernhard Urban <bernhard.urban@jku.at>
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diff
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|
1177 #endif // COMPILERGRAAL |
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1178 |
0 | 1179 // Outputs from the following MutexLocker block: |
1180 CompileTask* task = NULL; | |
1181 bool blocking = false; | |
1783 | 1182 CompileQueue* queue = compile_queue(comp_level); |
0 | 1183 |
1184 // Acquire our lock. | |
1185 { | |
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1186 MutexLocker locker(queue->lock(), thread); |
0 | 1187 |
1188 // Make sure the method has not slipped into the queues since | |
1189 // last we checked; note that those checks were "fast bail-outs". | |
1190 // Here we need to be more careful, see 14012000 below. | |
1191 if (compilation_is_in_queue(method, osr_bci)) { | |
1192 return; | |
1193 } | |
1194 | |
1195 // We need to check again to see if the compilation has | |
1196 // completed. A previous compilation may have registered | |
1197 // some result. | |
1198 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
1199 return; | |
1200 } | |
1201 | |
1202 // We now know that this compilation is not pending, complete, | |
1203 // or prohibited. Assign a compile_id to this compilation | |
1204 // and check to see if it is in our [Start..Stop) range. | |
14909 | 1205 uint compile_id = assign_compile_id(method, osr_bci); |
0 | 1206 if (compile_id == 0) { |
1207 // The compilation falls outside the allowed range. | |
1208 return; | |
1209 } | |
1210 | |
1211 // Should this thread wait for completion of the compile? | |
1212 blocking = is_compile_blocking(method, osr_bci); | |
1213 | |
1214 // We will enter the compilation in the queue. | |
1215 // 14012000: Note that this sets the queued_for_compile bits in | |
1216 // the target method. We can now reason that a method cannot be | |
1217 // queued for compilation more than once, as follows: | |
1218 // Before a thread queues a task for compilation, it first acquires | |
1219 // the compile queue lock, then checks if the method's queued bits | |
1220 // are set or it has already been compiled. Thus there can not be two | |
1221 // instances of a compilation task for the same method on the | |
1222 // compilation queue. Consider now the case where the compilation | |
1223 // thread has already removed a task for that method from the queue | |
1224 // and is in the midst of compiling it. In this case, the | |
1225 // queued_for_compile bits must be set in the method (and these | |
1226 // will be visible to the current thread, since the bits were set | |
1227 // under protection of the compile queue lock, which we hold now. | |
1228 // When the compilation completes, the compiler thread first sets | |
1229 // the compilation result and then clears the queued_for_compile | |
1230 // bits. Neither of these actions are protected by a barrier (or done | |
1231 // under the protection of a lock), so the only guarantee we have | |
1232 // (on machines with TSO (Total Store Order)) is that these values | |
1233 // will update in that order. As a result, the only combinations of | |
1234 // these bits that the current thread will see are, in temporal order: | |
1235 // <RESULT, QUEUE> : | |
1236 // <0, 1> : in compile queue, but not yet compiled | |
1237 // <1, 1> : compiled but queue bit not cleared | |
1238 // <1, 0> : compiled and queue bit cleared | |
1239 // Because we first check the queue bits then check the result bits, | |
1240 // we are assured that we cannot introduce a duplicate task. | |
1241 // Note that if we did the tests in the reverse order (i.e. check | |
1242 // result then check queued bit), we could get the result bit before | |
1243 // the compilation completed, and the queue bit after the compilation | |
1244 // completed, and end up introducing a "duplicate" (redundant) task. | |
1245 // In that case, the compiler thread should first check if a method | |
1246 // has already been compiled before trying to compile it. | |
1247 // NOTE: in the event that there are multiple compiler threads and | |
1248 // there is de-optimization/recompilation, things will get hairy, | |
1249 // and in that case it's best to protect both the testing (here) of | |
1250 // these bits, and their updating (here and elsewhere) under a | |
1251 // common lock. | |
1783 | 1252 task = create_compile_task(queue, |
0 | 1253 compile_id, method, |
1254 osr_bci, comp_level, | |
1255 hot_method, hot_count, comment, | |
1256 blocking); | |
1257 } | |
1258 | |
1259 if (blocking) { | |
1260 wait_for_completion(task); | |
1261 } | |
1262 } | |
1263 | |
1264 | |
1265 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
1783 | 1266 int comp_level, |
0 | 1267 methodHandle hot_method, int hot_count, |
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1268 const char* comment, Thread* THREAD) { |
0 | 1269 // make sure arguments make sense |
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1270 assert(method->method_holder()->oop_is_instance(), "not an instance method"); |
0 | 1271 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); |
1272 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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1273 assert(!method->method_holder()->is_not_initialized(), "method holder must be initialized"); |
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1274 // allow any levels for WhiteBox |
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1275 assert(WhiteBoxAPI || TieredCompilation || comp_level == CompLevel_highest_tier, "only CompLevel_highest_tier must be used in non-tiered"); |
0 | 1276 // return quickly if possible |
1277 | |
1278 // lock, make sure that the compilation | |
1279 // isn't prohibited in a straightforward way. | |
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1280 AbstractCompiler *comp = CompileBroker::compiler(comp_level); |
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1281 if (comp == NULL || !comp->can_compile_method(method) || |
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1282 compilation_is_prohibited(method, osr_bci, comp_level)) { |
0 | 1283 return NULL; |
1284 } | |
1285 | |
1286 if (osr_bci == InvocationEntryBci) { | |
1287 // standard compilation | |
1288 nmethod* method_code = method->code(); | |
1783 | 1289 if (method_code != NULL) { |
1290 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
1291 return method_code; | |
1292 } | |
0 | 1293 } |
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1294 if (method->is_not_compilable(comp_level)) { |
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1295 return NULL; |
1202 | 1296 } |
0 | 1297 } else { |
1298 // osr compilation | |
1299 #ifndef TIERED | |
1300 // seems like an assert of dubious value | |
1783 | 1301 assert(comp_level == CompLevel_highest_tier, |
0 | 1302 "all OSR compiles are assumed to be at a single compilation lavel"); |
1303 #endif // TIERED | |
1783 | 1304 // We accept a higher level osr method |
1305 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
0 | 1306 if (nm != NULL) return nm; |
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1307 if (method->is_not_osr_compilable(comp_level)) return NULL; |
0 | 1308 } |
1309 | |
1310 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
1311 // some prerequisites that are compiler specific | |
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1312 if (comp->is_c2() || comp->is_shark()) { |
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1313 method->constants()->resolve_string_constants(CHECK_AND_CLEAR_NULL); |
0 | 1314 // Resolve all classes seen in the signature of the method |
1315 // we are compiling. | |
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1316 Method::load_signature_classes(method, CHECK_AND_CLEAR_NULL); |
0 | 1317 } |
1318 | |
1319 // If the method is native, do the lookup in the thread requesting | |
1320 // the compilation. Native lookups can load code, which is not | |
1321 // permitted during compilation. | |
1322 // | |
1323 // Note: A native method implies non-osr compilation which is | |
1324 // checked with an assertion at the entry of this method. | |
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1325 if (method->is_native() && !method->is_method_handle_intrinsic()) { |
0 | 1326 bool in_base_library; |
1327 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
1328 if (HAS_PENDING_EXCEPTION) { | |
1329 // In case of an exception looking up the method, we just forget | |
1330 // about it. The interpreter will kick-in and throw the exception. | |
1331 method->set_not_compilable(); // implies is_not_osr_compilable() | |
1332 CLEAR_PENDING_EXCEPTION; | |
1333 return NULL; | |
1334 } | |
1335 assert(method->has_native_function(), "must have native code by now"); | |
1336 } | |
1337 | |
1338 // RedefineClasses() has replaced this method; just return | |
1339 if (method->is_old()) { | |
1340 return NULL; | |
1341 } | |
1342 | |
1343 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
1344 // a lock the compiling thread can not acquire. Prefetch it here. | |
1345 if (JvmtiExport::should_post_compiled_method_load()) { | |
1346 method->jmethod_id(); | |
1347 } | |
1348 | |
1349 // do the compilation | |
1350 if (method->is_native()) { | |
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1351 if (!PreferInterpreterNativeStubs || method->is_method_handle_intrinsic()) { |
14909 | 1352 // Acquire our lock. |
1353 int compile_id; | |
1354 { | |
1355 MutexLocker locker(MethodCompileQueue_lock, THREAD); | |
1356 compile_id = assign_compile_id(method, standard_entry_bci); | |
1357 } | |
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1358 // To properly handle the appendix argument for out-of-line calls we are using a small trampoline that |
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1359 // pops off the appendix argument and jumps to the target (see gen_special_dispatch in SharedRuntime). |
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1360 // |
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1361 // Since normal compiled-to-compiled calls are not able to handle such a thing we MUST generate an adapter |
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1362 // in this case. If we can't generate one and use it we can not execute the out-of-line method handle calls. |
14909 | 1363 (void) AdapterHandlerLibrary::create_native_wrapper(method, compile_id); |
0 | 1364 } else { |
1365 return NULL; | |
1366 } | |
1367 } else { | |
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1368 // If the compiler is shut off due to code cache getting full |
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1369 // fail out now so blocking compiles dont hang the java thread |
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1370 if (!should_compile_new_jobs()) { |
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1371 CompilationPolicy::policy()->delay_compilation(method()); |
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1372 return NULL; |
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1373 } |
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1374 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, THREAD); |
0 | 1375 } |
1376 | |
1377 // return requested nmethod | |
1783 | 1378 // We accept a higher level osr method |
1379 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
0 | 1380 } |
1381 | |
1382 | |
1383 // ------------------------------------------------------------------ | |
1384 // CompileBroker::compilation_is_complete | |
1385 // | |
1386 // See if compilation of this method is already complete. | |
1387 bool CompileBroker::compilation_is_complete(methodHandle method, | |
1388 int osr_bci, | |
1389 int comp_level) { | |
1390 bool is_osr = (osr_bci != standard_entry_bci); | |
1391 if (is_osr) { | |
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1392 if (method->is_not_osr_compilable(comp_level)) { |
0 | 1393 return true; |
1394 } else { | |
1783 | 1395 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
0 | 1396 return (result != NULL); |
1397 } | |
1398 } else { | |
1399 if (method->is_not_compilable(comp_level)) { | |
1400 return true; | |
1401 } else { | |
1402 nmethod* result = method->code(); | |
1403 if (result == NULL) return false; | |
1783 | 1404 return comp_level == result->comp_level(); |
0 | 1405 } |
1406 } | |
1407 } | |
1408 | |
1409 | |
1410 // ------------------------------------------------------------------ | |
1411 // CompileBroker::compilation_is_in_queue | |
1412 // | |
1413 // See if this compilation is already requested. | |
1414 // | |
1415 // Implementation note: there is only a single "is in queue" bit | |
1416 // for each method. This means that the check below is overly | |
1417 // conservative in the sense that an osr compilation in the queue | |
1418 // will block a normal compilation from entering the queue (and vice | |
1419 // versa). This can be remedied by a full queue search to disambiguate | |
1420 // cases. If it is deemed profitible, this may be done. | |
1421 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
1783 | 1422 int osr_bci) { |
0 | 1423 return method->queued_for_compilation(); |
1424 } | |
1425 | |
1426 // ------------------------------------------------------------------ | |
1427 // CompileBroker::compilation_is_prohibited | |
1428 // | |
1429 // See if this compilation is not allowed. | |
1430 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
1431 bool is_native = method->is_native(); | |
1432 // Some compilers may not support the compilation of natives. | |
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1433 AbstractCompiler *comp = compiler(comp_level); |
0 | 1434 if (is_native && |
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1435 (!CICompileNatives || comp == NULL || !comp->supports_native())) { |
1783 | 1436 method->set_not_compilable_quietly(comp_level); |
0 | 1437 return true; |
1438 } | |
1439 | |
1440 bool is_osr = (osr_bci != standard_entry_bci); | |
1441 // Some compilers may not support on stack replacement. | |
1442 if (is_osr && | |
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1443 (!CICompileOSR || comp == NULL || !comp->supports_osr())) { |
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1444 method->set_not_osr_compilable(comp_level); |
0 | 1445 return true; |
1446 } | |
1447 | |
1448 // The method may be explicitly excluded by the user. | |
1449 bool quietly; | |
1450 if (CompilerOracle::should_exclude(method, quietly)) { | |
1451 if (!quietly) { | |
1452 // This does not happen quietly... | |
1453 ResourceMark rm; | |
1454 tty->print("### Excluding %s:%s", | |
1455 method->is_native() ? "generation of native wrapper" : "compile", | |
1456 (method->is_static() ? " static" : "")); | |
1457 method->print_short_name(tty); | |
1458 tty->cr(); | |
1459 } | |
7998 | 1460 method->set_not_compilable(CompLevel_all, !quietly, "excluded by CompilerOracle"); |
0 | 1461 } |
1462 | |
1463 return false; | |
1464 } | |
1465 | |
14909 | 1466 |
1467 // ------------------------------------------------------------------ | |
1468 // CompileBroker::assign_compile_id | |
1469 // | |
1470 // Assign a serialized id number to this compilation request. If the | |
1471 // number falls out of the allowed range, return a 0. OSR | |
1472 // compilations may be numbered separately from regular compilations | |
1473 // if certain debugging flags are used. | |
1474 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
1475 assert(MethodCompileQueue_lock->owner() == Thread::current(), | |
1476 "must hold the compilation queue lock"); | |
0 | 1477 bool is_osr = (osr_bci != standard_entry_bci); |
14909 | 1478 uint id; |
1479 if (CICountOSR && is_osr) { | |
1480 id = ++_osr_compilation_id; | |
1481 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
0 | 1482 return id; |
1483 } | |
1484 } else { | |
14909 | 1485 id = ++_compilation_id; |
1486 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
0 | 1487 return id; |
1488 } | |
1489 } | |
1490 | |
1491 // Method was not in the appropriate compilation range. | |
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1492 method->set_not_compilable_quietly(); |
0 | 1493 return 0; |
1494 } | |
1495 | |
1496 | |
1497 // ------------------------------------------------------------------ | |
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1498 // CompileBroker::assign_compile_id_unlocked |
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1499 // |
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1500 // Public wrapper for assign_compile_id that acquires the needed locks |
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1501 uint CompileBroker::assign_compile_id_unlocked(Thread* thread, methodHandle method, int osr_bci) { |
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1502 MutexLocker locker(MethodCompileQueue_lock, thread); |
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1503 return assign_compile_id(method, osr_bci); |
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1504 } |
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1505 |
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1506 |
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1507 // ------------------------------------------------------------------ |
0 | 1508 // CompileBroker::is_compile_blocking |
1509 // | |
1510 // Should the current thread be blocked until this compilation request | |
1511 // has been fulfilled? | |
1512 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
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1513 assert(!InstanceRefKlass::owns_pending_list_lock(JavaThread::current()), "possible deadlock"); |
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1514 return !BackgroundCompilation; |
0 | 1515 } |
1516 | |
1517 | |
1518 // ------------------------------------------------------------------ | |
1519 // CompileBroker::preload_classes | |
1520 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
1521 // Move this code over from c1_Compiler.cpp | |
1522 ShouldNotReachHere(); | |
1523 } | |
1524 | |
1525 | |
1526 // ------------------------------------------------------------------ | |
1527 // CompileBroker::create_compile_task | |
1528 // | |
1529 // Create a CompileTask object representing the current request for | |
1530 // compilation. Add this task to the queue. | |
1531 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
1532 int compile_id, | |
1533 methodHandle method, | |
1534 int osr_bci, | |
1535 int comp_level, | |
1536 methodHandle hot_method, | |
1537 int hot_count, | |
1538 const char* comment, | |
1539 bool blocking) { | |
1540 CompileTask* new_task = allocate_task(); | |
1541 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
1542 hot_method, hot_count, comment, | |
1543 blocking); | |
1544 queue->add(new_task); | |
1545 return new_task; | |
1546 } | |
1547 | |
1548 | |
1549 // ------------------------------------------------------------------ | |
1550 // CompileBroker::allocate_task | |
1551 // | |
1552 // Allocate a CompileTask, from the free list if possible. | |
1553 CompileTask* CompileBroker::allocate_task() { | |
1554 MutexLocker locker(CompileTaskAlloc_lock); | |
1555 CompileTask* task = NULL; | |
1556 if (_task_free_list != NULL) { | |
1557 task = _task_free_list; | |
1558 _task_free_list = task->next(); | |
1559 task->set_next(NULL); | |
1560 } else { | |
1561 task = new CompileTask(); | |
1562 task->set_next(NULL); | |
1563 } | |
1564 return task; | |
1565 } | |
1566 | |
1567 | |
1568 // ------------------------------------------------------------------ | |
1569 // CompileBroker::free_task | |
1570 // | |
1571 // Add a task to the free list. | |
1572 void CompileBroker::free_task(CompileTask* task) { | |
1573 MutexLocker locker(CompileTaskAlloc_lock); | |
1574 task->free(); | |
1575 task->set_next(_task_free_list); | |
1576 _task_free_list = task; | |
1577 } | |
1578 | |
1579 | |
1580 // ------------------------------------------------------------------ | |
1581 // CompileBroker::wait_for_completion | |
1582 // | |
1583 // Wait for the given method CompileTask to complete. | |
1584 void CompileBroker::wait_for_completion(CompileTask* task) { | |
1585 if (CIPrintCompileQueue) { | |
1586 tty->print_cr("BLOCKING FOR COMPILE"); | |
1587 } | |
1588 | |
1589 assert(task->is_blocking(), "can only wait on blocking task"); | |
1590 | |
1591 JavaThread *thread = JavaThread::current(); | |
1592 thread->set_blocked_on_compilation(true); | |
1593 | |
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1594 methodHandle method(thread, task->method()); |
0 | 1595 { |
1596 MutexLocker waiter(task->lock(), thread); | |
1597 | |
1598 while (!task->is_complete()) | |
1599 task->lock()->wait(); | |
1600 } | |
1601 // It is harmless to check this status without the lock, because | |
1602 // completion is a stable property (until the task object is recycled). | |
1603 assert(task->is_complete(), "Compilation should have completed"); | |
1604 assert(task->code_handle() == NULL, "must be reset"); | |
1605 | |
1606 thread->set_blocked_on_compilation(false); | |
1607 | |
1608 // By convention, the waiter is responsible for recycling a | |
1609 // blocking CompileTask. Since there is only one waiter ever | |
1610 // waiting on a CompileTask, we know that no one else will | |
1611 // be using this CompileTask; we can free it. | |
1612 free_task(task); | |
1613 } | |
1614 | |
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1615 // Initialize compiler thread(s) + compiler object(s). The postcondition |
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1616 // of this function is that the compiler runtimes are initialized and that |
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1617 //compiler threads can start compiling. |
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1618 bool CompileBroker::init_compiler_runtime() { |
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1619 CompilerThread* thread = CompilerThread::current(); |
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1620 AbstractCompiler* comp = thread->compiler(); |
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1621 // Final sanity check - the compiler object must exist |
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1622 guarantee(comp != NULL, "Compiler object must exist"); |
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1623 |
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1624 int system_dictionary_modification_counter; |
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1625 { |
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1626 MutexLocker locker(Compile_lock, thread); |
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1627 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); |
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1628 } |
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1629 |
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1630 { |
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1631 // Must switch to native to allocate ci_env |
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1632 ThreadToNativeFromVM ttn(thread); |
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1633 ciEnv ci_env(NULL, system_dictionary_modification_counter); |
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1634 // Cache Jvmti state |
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1635 ci_env.cache_jvmti_state(); |
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1636 // Cache DTrace flags |
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1637 ci_env.cache_dtrace_flags(); |
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1638 |
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1639 // Switch back to VM state to do compiler initialization |
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1640 ThreadInVMfromNative tv(thread); |
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1641 ResetNoHandleMark rnhm; |
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1642 |
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1643 |
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1644 if (!comp->is_shark()) { |
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1645 // Perform per-thread and global initializations |
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1646 comp->initialize(); |
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1647 } |
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1648 } |
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1649 |
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1650 if (comp->is_failed()) { |
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1651 disable_compilation_forever(); |
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1652 // If compiler initialization failed, no compiler thread that is specific to a |
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1653 // particular compiler runtime will ever start to compile methods. |
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1654 |
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1655 shutdown_compiler_runtime(comp, thread); |
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1656 return false; |
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1657 } |
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1658 |
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1659 // C1 specific check |
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1660 if (comp->is_c1() && (thread->get_buffer_blob() == NULL)) { |
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1661 warning("Initialization of %s thread failed (no space to run compilers)", thread->name()); |
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1662 return false; |
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1663 } |
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1664 |
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1665 return true; |
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1666 } |
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1667 |
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1668 // If C1 and/or C2 initialization failed, we shut down all compilation. |
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1669 // We do this to keep things simple. This can be changed if it ever turns out to be |
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1670 // a problem. |
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1671 void CompileBroker::shutdown_compiler_runtime(AbstractCompiler* comp, CompilerThread* thread) { |
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1672 // Free buffer blob, if allocated |
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1673 if (thread->get_buffer_blob() != NULL) { |
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1674 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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1675 CodeCache::free(thread->get_buffer_blob()); |
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1676 } |
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1677 |
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1678 if (comp->should_perform_shutdown()) { |
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1679 // There are two reasons for shutting down the compiler |
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1680 // 1) compiler runtime initialization failed |
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1681 // 2) The code cache is full and the following flag is set: -XX:-UseCodeCacheFlushing |
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1682 warning("Shutting down compiler %s (no space to run compilers)", comp->name()); |
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1683 |
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1684 // Only one thread per compiler runtime object enters here |
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1685 // Set state to shut down |
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1686 comp->set_shut_down(); |
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1687 |
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1688 MutexLocker mu(MethodCompileQueue_lock, thread); |
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1689 CompileQueue* queue; |
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1690 if (_c1_method_queue != NULL) { |
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1691 _c1_method_queue->delete_all(); |
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1692 queue = _c1_method_queue; |
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1693 _c1_method_queue = NULL; |
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1694 delete _c1_method_queue; |
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1695 } |
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1696 |
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1697 if (_c2_method_queue != NULL) { |
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1698 _c2_method_queue->delete_all(); |
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1699 queue = _c2_method_queue; |
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1700 _c2_method_queue = NULL; |
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1701 delete _c2_method_queue; |
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1702 } |
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1703 |
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1704 // We could delete compiler runtimes also. However, there are references to |
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1705 // the compiler runtime(s) (e.g., nmethod::is_compiled_by_c1()) which then |
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1706 // fail. This can be done later if necessary. |
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1707 } |
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1708 } |
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1709 |
0 | 1710 // ------------------------------------------------------------------ |
1711 // CompileBroker::compiler_thread_loop | |
1712 // | |
1713 // The main loop run by a CompilerThread. | |
1714 void CompileBroker::compiler_thread_loop() { | |
1715 CompilerThread* thread = CompilerThread::current(); | |
1716 CompileQueue* queue = thread->queue(); | |
1717 // For the thread that initializes the ciObjectFactory | |
1718 // this resource mark holds all the shared objects | |
1719 ResourceMark rm; | |
1720 | |
1721 // First thread to get here will initialize the compiler interface | |
1722 | |
1723 if (!ciObjectFactory::is_initialized()) { | |
1724 ASSERT_IN_VM; | |
1725 MutexLocker only_one (CompileThread_lock, thread); | |
1726 if (!ciObjectFactory::is_initialized()) { | |
1727 ciObjectFactory::initialize(); | |
1728 } | |
1729 } | |
1730 | |
1731 // Open a log. | |
1732 if (LogCompilation) { | |
1733 init_compiler_thread_log(); | |
1734 } | |
1735 CompileLog* log = thread->log(); | |
1736 if (log != NULL) { | |
6843 | 1737 log->begin_elem("start_compile_thread name='%s' thread='" UINTX_FORMAT "' process='%d'", |
1738 thread->name(), | |
0 | 1739 os::current_thread_id(), |
1740 os::current_process_id()); | |
1741 log->stamp(); | |
1742 log->end_elem(); | |
1743 } | |
1744 | |
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1745 // If compiler thread/runtime initialization fails, exit the compiler thread |
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1746 if (!init_compiler_runtime()) { |
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1747 return; |
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1748 } |
1202 | 1749 |
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1750 // Poll for new compilation tasks as long as the JVM runs. Compilation |
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1751 // should only be disabled if something went wrong while initializing the |
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1752 // compiler runtimes. This, in turn, should not happen. The only known case |
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1753 // when compiler runtime initialization fails is if there is not enough free |
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1754 // space in the code cache to generate the necessary stubs, etc. |
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1755 while (!is_compilation_disabled_forever()) { |
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1756 // We need this HandleMark to avoid leaking VM handles. |
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1757 HandleMark hm(thread); |
0 | 1758 |
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1759 if (CodeCache::unallocated_capacity() < CodeCacheMinimumFreeSpace) { |
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1760 // the code cache is really full |
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1761 handle_full_code_cache(); |
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1762 } |
0 | 1763 |
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1764 CompileTask* task = queue->get(); |
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1765 if (task == NULL) { |
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1766 continue; |
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1767 } |
0 | 1768 |
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1769 // Give compiler threads an extra quanta. They tend to be bursty and |
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1770 // this helps the compiler to finish up the job. |
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1771 if( CompilerThreadHintNoPreempt ) |
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1772 os::hint_no_preempt(); |
0 | 1773 |
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1774 // trace per thread time and compile statistics |
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1775 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); |
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1776 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); |
0 | 1777 |
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1778 // Assign the task to the current thread. Mark this compilation |
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1779 // thread as active for the profiler. |
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1780 CompileTaskWrapper ctw(task); |
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1781 nmethodLocker result_handle; // (handle for the nmethod produced by this task) |
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1782 task->set_code_handle(&result_handle); |
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1783 methodHandle method(thread, task->method()); |
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1784 |
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1785 // Never compile a method if breakpoints are present in it |
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1786 if (method()->number_of_breakpoints() == 0) { |
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1787 // Compile the method. |
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1788 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
0 | 1789 #ifdef COMPILER1 |
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1790 // Allow repeating compilations for the purpose of benchmarking |
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1791 // compile speed. This is not useful for customers. |
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1792 if (CompilationRepeat != 0) { |
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1793 int compile_count = CompilationRepeat; |
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1794 while (compile_count > 0) { |
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1795 invoke_compiler_on_method(task); |
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1796 nmethod* nm = method->code(); |
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1797 if (nm != NULL) { |
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1798 nm->make_zombie(); |
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1799 method->clear_code(); |
0 | 1800 } |
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1801 compile_count--; |
0 | 1802 } |
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1803 } |
0 | 1804 #endif /* COMPILER1 */ |
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1805 invoke_compiler_on_method(task); |
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1806 } else { |
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1807 // After compilation is disabled, remove remaining methods from queue |
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1808 method->clear_queued_for_compilation(); |
0 | 1809 } |
1810 } | |
1811 } | |
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1812 |
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1813 // Shut down compiler runtime |
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1814 shutdown_compiler_runtime(thread->compiler(), thread); |
0 | 1815 } |
1816 | |
1817 // ------------------------------------------------------------------ | |
1818 // CompileBroker::init_compiler_thread_log | |
1819 // | |
1820 // Set up state required by +LogCompilation. | |
1821 void CompileBroker::init_compiler_thread_log() { | |
1822 CompilerThread* thread = CompilerThread::current(); | |
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1823 char file_name[4*K]; |
0 | 1824 FILE* fp = NULL; |
1825 intx thread_id = os::current_thread_id(); | |
1826 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
1827 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
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1828 if (dir == NULL) { |
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1829 jio_snprintf(file_name, sizeof(file_name), "hs_c" UINTX_FORMAT "_pid%u.log", |
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1830 thread_id, os::current_process_id()); |
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1831 } else { |
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1832 jio_snprintf(file_name, sizeof(file_name), |
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1833 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
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1834 os::file_separator(), thread_id, os::current_process_id()); |
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1835 } |
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1836 |
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1837 fp = fopen(file_name, "at"); |
0 | 1838 if (fp != NULL) { |
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1839 if (LogCompilation && Verbose) { |
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1840 tty->print_cr("Opening compilation log %s", file_name); |
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1841 } |
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1842 CompileLog* log = new(ResourceObj::C_HEAP, mtCompiler) CompileLog(file_name, fp, thread_id); |
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1843 thread->init_log(log); |
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1844 |
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1845 if (xtty != NULL) { |
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1846 ttyLocker ttyl; |
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1847 // Record any per thread log files |
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1848 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file_name); |
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1849 } |
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1850 return; |
0 | 1851 } |
1852 } | |
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1853 warning("Cannot open log file: %s", file_name); |
0 | 1854 } |
1855 | |
1856 // ------------------------------------------------------------------ | |
1857 // CompileBroker::set_should_block | |
1858 // | |
1859 // Set _should_block. | |
1860 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
1861 void CompileBroker::set_should_block() { | |
1862 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
1863 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
1864 #ifndef PRODUCT | |
1865 if (PrintCompilation && (Verbose || WizardMode)) | |
1866 tty->print_cr("notifying compiler thread pool to block"); | |
1867 #endif | |
1868 _should_block = true; | |
1869 } | |
1870 | |
1871 // ------------------------------------------------------------------ | |
1872 // CompileBroker::maybe_block | |
1873 // | |
1874 // Call this from the compiler at convenient points, to poll for _should_block. | |
1875 void CompileBroker::maybe_block() { | |
1876 if (_should_block) { | |
1877 #ifndef PRODUCT | |
1878 if (PrintCompilation && (Verbose || WizardMode)) | |
1879 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
1880 #endif | |
1881 ThreadInVMfromNative tivfn(JavaThread::current()); | |
1882 } | |
1883 } | |
1884 | |
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1885 // wrapper for CodeCache::print_summary() |
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1886 static void codecache_print(bool detailed) |
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1887 { |
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1888 ResourceMark rm; |
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1889 stringStream s; |
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1890 // Dump code cache into a buffer before locking the tty, |
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1891 { |
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1892 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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1893 CodeCache::print_summary(&s, detailed); |
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1894 } |
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1895 ttyLocker ttyl; |
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1896 tty->print(s.as_string()); |
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1897 } |
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1898 |
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1899 void CompileBroker::post_compile(CompilerThread* thread, CompileTask* task, EventCompilation& event, bool success, ciEnv* ci_env) { |
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1900 |
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1901 if (success) { |
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1902 task->mark_success(); |
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1903 if (ci_env != NULL) { |
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1904 task->set_num_inlined_bytecodes(ci_env->num_inlined_bytecodes()); |
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1905 } |
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1906 if (_compilation_log != NULL) { |
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1907 nmethod* code = task->code(); |
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1908 if (code != NULL) { |
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1909 _compilation_log->log_nmethod(thread, code); |
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1910 } |
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1911 } |
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1912 } |
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1913 |
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1914 // simulate crash during compilation |
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1915 assert(task->compile_id() != CICrashAt, "just as planned"); |
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1916 if (event.should_commit()) { |
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1917 event.set_method(task->method()); |
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1918 event.set_compileID(task->compile_id()); |
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1919 event.set_compileLevel(task->comp_level()); |
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1920 event.set_succeded(task->is_success()); |
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1921 event.set_isOsr(task->osr_bci() != CompileBroker::standard_entry_bci); |
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1922 event.set_codeSize((task->code() == NULL) ? 0 : task->code()->total_size()); |
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1923 event.set_inlinedBytes(task->num_inlined_bytecodes()); |
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1924 event.commit(); |
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1925 } |
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1926 } |
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1927 |
0 | 1928 // ------------------------------------------------------------------ |
1929 // CompileBroker::invoke_compiler_on_method | |
1930 // | |
1931 // Compile a method. | |
1932 // | |
1933 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
1934 if (PrintCompilation) { | |
1935 ResourceMark rm; | |
1936 task->print_line(); | |
1937 } | |
1938 elapsedTimer time; | |
1939 | |
1940 CompilerThread* thread = CompilerThread::current(); | |
1941 ResourceMark rm(thread); | |
1942 | |
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1943 if (LogEvents) { |
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1944 _compilation_log->log_compile(thread, task); |
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1945 } |
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1946 |
0 | 1947 // Common flags. |
1948 uint compile_id = task->compile_id(); | |
1949 int osr_bci = task->osr_bci(); | |
1950 bool is_osr = (osr_bci != standard_entry_bci); | |
1951 bool should_log = (thread->log() != NULL); | |
1952 bool should_break = false; | |
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1953 int task_level = task->comp_level(); |
0 | 1954 { |
1955 // create the handle inside it's own block so it can't | |
1956 // accidentally be referenced once the thread transitions to | |
1957 // native. The NoHandleMark before the transition should catch | |
1958 // any cases where this occurs in the future. | |
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1959 methodHandle method(thread, task->method()); |
0 | 1960 should_break = check_break_at(method, compile_id, is_osr); |
1961 if (should_log && !CompilerOracle::should_log(method)) { | |
1962 should_log = false; | |
1963 } | |
1964 assert(!method->is_native(), "no longer compile natives"); | |
1965 | |
1966 // Save information about this method in case of failure. | |
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1967 set_last_compile(thread, method, is_osr, task_level); |
0 | 1968 |
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1969 DTRACE_METHOD_COMPILE_BEGIN_PROBE(method, compiler_name(task_level)); |
0 | 1970 } |
1971 | |
1972 // Allocate a new set of JNI handles. | |
1973 push_jni_handle_block(); | |
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1974 Method* target_handle = task->method(); |
0 | 1975 int compilable = ciEnv::MethodCompilable; |
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1976 AbstractCompiler *comp = compiler(task_level); |
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1977 |
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1978 #ifdef COMPILERGRAAL |
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1979 if (comp != NULL && comp->is_graal()) { |
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1980 assert(!UseGraalCompilationQueue, "should not reach here"); |
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1981 GraalCompiler* graal = (GraalCompiler*) comp; |
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1982 |
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1983 TraceTime t1("compilation", &time); |
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1984 EventCompilation event; |
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1985 |
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1986 graal->compile_method(target_handle, osr_bci, task, false); |
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1987 |
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1988 post_compile(thread, task, event, task->code() != NULL, NULL); |
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1989 } else |
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1990 #endif // COMPILERGRAAL |
0 | 1991 { |
1992 int system_dictionary_modification_counter; | |
1993 { | |
1994 MutexLocker locker(Compile_lock, thread); | |
1995 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
1996 } | |
1997 | |
1998 NoHandleMark nhm; | |
1999 ThreadToNativeFromVM ttn(thread); | |
2000 | |
2001 ciEnv ci_env(task, system_dictionary_modification_counter); | |
2002 if (should_break) { | |
2003 ci_env.set_break_at_compile(true); | |
2004 } | |
2005 if (should_log) { | |
2006 ci_env.set_log(thread->log()); | |
2007 } | |
2008 assert(thread->env() == &ci_env, "set by ci_env"); | |
2009 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
2010 | |
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2011 // Cache Jvmti state |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
2012 ci_env.cache_jvmti_state(); |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
2013 |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
2014 // Cache DTrace flags |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
2015 ci_env.cache_dtrace_flags(); |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
2016 |
0 | 2017 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
2018 | |
2019 TraceTime t1("compilation", &time); | |
10405 | 2020 EventCompilation event; |
0 | 2021 |
8771
75a28f465a12
8008663: [parfait] Null pointer deference in hotspot/src/share/vm/compiler/compileBroker.cpp
morris
parents:
8730
diff
changeset
|
2022 if (comp == NULL) { |
75a28f465a12
8008663: [parfait] Null pointer deference in hotspot/src/share/vm/compiler/compileBroker.cpp
morris
parents:
8730
diff
changeset
|
2023 ci_env.record_method_not_compilable("no compiler", !TieredCompilation); |
75a28f465a12
8008663: [parfait] Null pointer deference in hotspot/src/share/vm/compiler/compileBroker.cpp
morris
parents:
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diff
changeset
|
2024 } else { |
75a28f465a12
8008663: [parfait] Null pointer deference in hotspot/src/share/vm/compiler/compileBroker.cpp
morris
parents:
8730
diff
changeset
|
2025 comp->compile_method(&ci_env, target, osr_bci); |
75a28f465a12
8008663: [parfait] Null pointer deference in hotspot/src/share/vm/compiler/compileBroker.cpp
morris
parents:
8730
diff
changeset
|
2026 } |
0 | 2027 |
2028 if (!ci_env.failing() && task->code() == NULL) { | |
2029 //assert(false, "compiler should always document failure"); | |
2030 // The compiler elected, without comment, not to register a result. | |
2031 // Do not attempt further compilations of this method. | |
1964
22ef3370343b
7000349: Tiered reacts incorrectly to C1 compilation failures
iveresov
parents:
1783
diff
changeset
|
2032 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
0 | 2033 } |
2034 | |
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4825
diff
changeset
|
2035 // Copy this bit to the enclosing block: |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4825
diff
changeset
|
2036 compilable = ci_env.compilable(); |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4825
diff
changeset
|
2037 |
0 | 2038 if (ci_env.failing()) { |
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4825
diff
changeset
|
2039 const char* retry_message = ci_env.retry_message(); |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4825
diff
changeset
|
2040 if (_compilation_log != NULL) { |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4825
diff
changeset
|
2041 _compilation_log->log_failure(thread, task, ci_env.failure_reason(), retry_message); |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4825
diff
changeset
|
2042 } |
0 | 2043 if (PrintCompilation) { |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2044 FormatBufferResource msg = retry_message != NULL ? |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2045 err_msg_res("COMPILE SKIPPED: %s (%s)", ci_env.failure_reason(), retry_message) : |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2046 err_msg_res("COMPILE SKIPPED: %s", ci_env.failure_reason()); |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2047 task->print_compilation(tty, msg); |
0 | 2048 } |
2049 } | |
15463
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14957
diff
changeset
|
2050 |
a20be10ad437
made Graal work with the HotSpot compiler queue and compiler threads, enabled by -XX:-UseGraalCompilationQueue
Doug Simon <doug.simon@oracle.com>
parents:
14957
diff
changeset
|
2051 post_compile(thread, task, event, !ci_env.failing(), &ci_env); |
0 | 2052 } |
2053 pop_jni_handle_block(); | |
2054 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2055 methodHandle method(thread, task->method()); |
0 | 2056 |
10207
e4e131b15d5c
8013532: Remove unused parameter "compiler" from DTRACE_METHOD_COMPILE* macros
roland
parents:
10206
diff
changeset
|
2057 DTRACE_METHOD_COMPILE_END_PROBE(method, compiler_name(task_level), task->is_success()); |
0 | 2058 |
2059 collect_statistics(thread, time, task); | |
2060 | |
4064
670a74b863fc
7107042: assert(no_dead_loop) failed: dead loop detected
kvn
parents:
4047
diff
changeset
|
2061 if (PrintCompilation && PrintCompilation2) { |
4047 | 2062 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); // print timestamp |
2063 tty->print("%4d ", compile_id); // print compilation number | |
2064 tty->print("%s ", (is_osr ? "%" : " ")); | |
10278 | 2065 if (task->code() != NULL) { |
2066 tty->print("size: %d(%d) ", task->code()->total_size(), task->code()->insts_size()); | |
2067 } | |
2068 tty->print_cr("time: %d inlined: %d bytes", (int)time.milliseconds(), task->num_inlined_bytecodes()); | |
4047 | 2069 } |
2070 | |
7595
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7409
diff
changeset
|
2071 if (PrintCodeCacheOnCompilation) |
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7409
diff
changeset
|
2072 codecache_print(/* detailed= */ false); |
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7409
diff
changeset
|
2073 |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2074 // Disable compilation, if required. |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2075 switch (compilable) { |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2076 case ciEnv::MethodCompilable_never: |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2077 if (is_osr) |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2078 method->set_not_osr_compilable_quietly(); |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2079 else |
1208
cef333a48af6
6923043: failed nightly tests which use -XX:+PrintCompilation -Xcomp -XX:CompileOnly
kvn
parents:
1202
diff
changeset
|
2080 method->set_not_compilable_quietly(); |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2081 break; |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2082 case ciEnv::MethodCompilable_not_at_tier: |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2083 if (is_osr) |
8771
75a28f465a12
8008663: [parfait] Null pointer deference in hotspot/src/share/vm/compiler/compileBroker.cpp
morris
parents:
8730
diff
changeset
|
2084 method->set_not_osr_compilable_quietly(task_level); |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2085 else |
8771
75a28f465a12
8008663: [parfait] Null pointer deference in hotspot/src/share/vm/compiler/compileBroker.cpp
morris
parents:
8730
diff
changeset
|
2086 method->set_not_compilable_quietly(task_level); |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6735
diff
changeset
|
2087 break; |
0 | 2088 } |
2089 | |
2090 // Note that the queued_for_compilation bits are cleared without | |
2091 // protection of a mutex. [They were set by the requester thread, | |
2092 // when adding the task to the complie queue -- at which time the | |
2093 // compile queue lock was held. Subsequently, we acquired the compile | |
2094 // queue lock to get this task off the compile queue; thus (to belabour | |
2095 // the point somewhat) our clearing of the bits must be occurring | |
2096 // only after the setting of the bits. See also 14012000 above. | |
2097 method->clear_queued_for_compilation(); | |
2098 | |
2099 #ifdef ASSERT | |
2100 if (CollectedHeap::fired_fake_oom()) { | |
2101 // The current compile received a fake OOM during compilation so | |
2102 // go ahead and exit the VM since the test apparently succeeded | |
2103 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
2104 vm_exit(0); | |
2105 } | |
2106 #endif | |
2107 } | |
2108 | |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2109 /** |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2110 * The CodeCache is full. Print out warning and disable compilation |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2111 * or try code cache cleaning so compilation can continue later. |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2112 */ |
1202 | 2113 void CompileBroker::handle_full_code_cache() { |
2114 UseInterpreter = true; | |
2115 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
1728
a62d332029cf
6976372: # assert(_owner == Thread::current()) failed: invariant
never
parents:
1692
diff
changeset
|
2116 if (xtty != NULL) { |
7595
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7409
diff
changeset
|
2117 ResourceMark rm; |
2482
dbccacb79c63
7036236: VM crashes assert((!inside_attrs()) || is_error_reported()) failed ...
iveresov
parents:
2447
diff
changeset
|
2118 stringStream s; |
dbccacb79c63
7036236: VM crashes assert((!inside_attrs()) || is_error_reported()) failed ...
iveresov
parents:
2447
diff
changeset
|
2119 // Dump code cache state into a buffer before locking the tty, |
dbccacb79c63
7036236: VM crashes assert((!inside_attrs()) || is_error_reported()) failed ...
iveresov
parents:
2447
diff
changeset
|
2120 // because log_state() will use locks causing lock conflicts. |
dbccacb79c63
7036236: VM crashes assert((!inside_attrs()) || is_error_reported()) failed ...
iveresov
parents:
2447
diff
changeset
|
2121 CodeCache::log_state(&s); |
dbccacb79c63
7036236: VM crashes assert((!inside_attrs()) || is_error_reported()) failed ...
iveresov
parents:
2447
diff
changeset
|
2122 // Lock to prevent tearing |
dbccacb79c63
7036236: VM crashes assert((!inside_attrs()) || is_error_reported()) failed ...
iveresov
parents:
2447
diff
changeset
|
2123 ttyLocker ttyl; |
1728
a62d332029cf
6976372: # assert(_owner == Thread::current()) failed: invariant
never
parents:
1692
diff
changeset
|
2124 xtty->begin_elem("code_cache_full"); |
2482
dbccacb79c63
7036236: VM crashes assert((!inside_attrs()) || is_error_reported()) failed ...
iveresov
parents:
2447
diff
changeset
|
2125 xtty->print(s.as_string()); |
1728
a62d332029cf
6976372: # assert(_owner == Thread::current()) failed: invariant
never
parents:
1692
diff
changeset
|
2126 xtty->stamp(); |
a62d332029cf
6976372: # assert(_owner == Thread::current()) failed: invariant
never
parents:
1692
diff
changeset
|
2127 xtty->end_elem(); |
1202 | 2128 } |
10405 | 2129 |
2130 CodeCache::report_codemem_full(); | |
2131 | |
1578
ca3dceda776c
6930994: Code cache is full warning should be visible in product
never
parents:
1538
diff
changeset
|
2132 #ifndef PRODUCT |
1202 | 2133 if (CompileTheWorld || ExitOnFullCodeCache) { |
7595
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7409
diff
changeset
|
2134 codecache_print(/* detailed= */ true); |
1202 | 2135 before_exit(JavaThread::current()); |
2136 exit_globals(); // will delete tty | |
2137 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
2138 } | |
1578
ca3dceda776c
6930994: Code cache is full warning should be visible in product
never
parents:
1538
diff
changeset
|
2139 #endif |
1202 | 2140 if (UseCodeCacheFlushing) { |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12158
diff
changeset
|
2141 // Since code cache is full, immediately stop new compiles |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12158
diff
changeset
|
2142 if (CompileBroker::set_should_compile_new_jobs(CompileBroker::stop_compilation)) { |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12158
diff
changeset
|
2143 NMethodSweeper::log_sweep("disable_compiler"); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12158
diff
changeset
|
2144 } |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2145 // Switch to 'vm_state'. This ensures that possibly_sweep() can be called |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2146 // without having to consider the state in which the current thread is. |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2147 ThreadInVMfromUnknown in_vm; |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2148 NMethodSweeper::possibly_sweep(); |
1202 | 2149 } else { |
12880
469216acdb28
8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
anoll
parents:
12861
diff
changeset
|
2150 disable_compilation_forever(); |
1202 | 2151 } |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2152 |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2153 // Print warning only once |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2154 if (should_print_compiler_warning()) { |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2155 warning("CodeCache is full. Compiler has been disabled."); |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2156 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2157 codecache_print(/* detailed= */ true); |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13016
diff
changeset
|
2158 } |
1202 | 2159 } |
2160 } | |
2161 | |
2162 // ------------------------------------------------------------------ | |
0 | 2163 // CompileBroker::set_last_compile |
2164 // | |
2165 // Record this compilation for debugging purposes. | |
2166 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
2167 ResourceMark rm; | |
2168 char* method_name = method->name()->as_C_string(); | |
2169 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
2170 char current_method[CompilerCounters::cmname_buffer_length]; | |
2171 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
2172 | |
2173 if (UsePerfData) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2174 const char* class_name = method->method_holder()->name()->as_C_string(); |
0 | 2175 |
2176 size_t s1len = strlen(class_name); | |
2177 size_t s2len = strlen(method_name); | |
2178 | |
2179 // check if we need to truncate the string | |
2180 if (s1len + s2len + 2 > maxLen) { | |
2181 | |
2182 // the strategy is to lop off the leading characters of the | |
2183 // class name and the trailing characters of the method name. | |
2184 | |
2185 if (s2len + 2 > maxLen) { | |
2186 // lop of the entire class name string, let snprintf handle | |
2187 // truncation of the method name. | |
2188 class_name += s1len; // null string | |
2189 } | |
2190 else { | |
2191 // lop off the extra characters from the front of the class name | |
2192 class_name += ((s1len + s2len + 2) - maxLen); | |
2193 } | |
2194 } | |
2195 | |
2196 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
2197 } | |
2198 | |
2199 if (CICountOSR && is_osr) { | |
2200 _last_compile_type = osr_compile; | |
2201 } else { | |
2202 _last_compile_type = normal_compile; | |
2203 } | |
2204 _last_compile_level = comp_level; | |
2205 | |
2206 if (UsePerfData) { | |
2207 CompilerCounters* counters = thread->counters(); | |
2208 counters->set_current_method(current_method); | |
2209 counters->set_compile_type((jlong)_last_compile_type); | |
2210 } | |
2211 } | |
2212 | |
2213 | |
2214 // ------------------------------------------------------------------ | |
2215 // CompileBroker::push_jni_handle_block | |
2216 // | |
2217 // Push on a new block of JNI handles. | |
2218 void CompileBroker::push_jni_handle_block() { | |
2219 JavaThread* thread = JavaThread::current(); | |
2220 | |
2221 // Allocate a new block for JNI handles. | |
2222 // Inlined code from jni_PushLocalFrame() | |
2223 JNIHandleBlock* java_handles = thread->active_handles(); | |
2224 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
2225 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
2226 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
2227 thread->set_active_handles(compile_handles); | |
2228 } | |
2229 | |
2230 | |
2231 // ------------------------------------------------------------------ | |
2232 // CompileBroker::pop_jni_handle_block | |
2233 // | |
2234 // Pop off the current block of JNI handles. | |
2235 void CompileBroker::pop_jni_handle_block() { | |
2236 JavaThread* thread = JavaThread::current(); | |
2237 | |
2238 // Release our JNI handle block | |
2239 JNIHandleBlock* compile_handles = thread->active_handles(); | |
2240 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
2241 thread->set_active_handles(java_handles); | |
2242 compile_handles->set_pop_frame_link(NULL); | |
2243 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
2244 } | |
2245 | |
2246 | |
2247 // ------------------------------------------------------------------ | |
2248 // CompileBroker::check_break_at | |
2249 // | |
2250 // Should the compilation break at the current compilation. | |
2251 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
2252 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
2253 return true; | |
2254 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
2255 return true; | |
2256 } else { | |
2257 return (compile_id == CIBreakAt); | |
2258 } | |
2259 } | |
2260 | |
2261 // ------------------------------------------------------------------ | |
2262 // CompileBroker::collect_statistics | |
2263 // | |
2264 // Collect statistics about the compilation. | |
2265 | |
2266 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
2267 bool success = task->is_success(); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2268 methodHandle method (thread, task->method()); |
0 | 2269 uint compile_id = task->compile_id(); |
2270 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
2271 nmethod* code = task->code(); | |
2272 CompilerCounters* counters = thread->counters(); | |
2273 | |
2274 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
2275 MutexLocker locker(CompileStatistics_lock); | |
2276 | |
2277 // _perf variables are production performance counters which are | |
2278 // updated regardless of the setting of the CITime and CITimeEach flags | |
2279 // | |
2280 if (!success) { | |
2281 _total_bailout_count++; | |
2282 if (UsePerfData) { | |
2283 _perf_last_failed_method->set_value(counters->current_method()); | |
2284 _perf_last_failed_type->set_value(counters->compile_type()); | |
2285 _perf_total_bailout_count->inc(); | |
2286 } | |
2287 } else if (code == NULL) { | |
2288 if (UsePerfData) { | |
2289 _perf_last_invalidated_method->set_value(counters->current_method()); | |
2290 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
2291 _perf_total_invalidated_count->inc(); | |
2292 } | |
2293 _total_invalidated_count++; | |
2294 } else { | |
2295 // Compilation succeeded | |
2296 | |
2297 // update compilation ticks - used by the implementation of | |
2298 // java.lang.management.CompilationMBean | |
2299 _perf_total_compilation->inc(time.ticks()); | |
2300 | |
10405 | 2301 _t_total_compilation.add(time); |
2302 _peak_compilation_time = time.milliseconds() > _peak_compilation_time ? time.milliseconds() : _peak_compilation_time; | |
2303 | |
0 | 2304 if (CITime) { |
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2305 int bytes_compiled = method->code_size() + task->num_inlined_bytecodes(); |
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2306 GRAAL_ONLY(CompilerStatistics* stats = compiler(task->comp_level())->stats();) |
0 | 2307 if (is_osr) { |
2308 _t_osr_compilation.add(time); | |
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2309 _sum_osr_bytes_compiled += bytes_compiled; |
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2310 GRAAL_ONLY(stats->_osr.update(time, bytes_compiled);) |
0 | 2311 } else { |
2312 _t_standard_compilation.add(time); | |
2313 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
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2314 GRAAL_ONLY(stats->_standard.update(time, bytes_compiled);) |
0 | 2315 } |
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2316 GRAAL_ONLY(stats->_nmethods_size += code->total_size();) |
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2317 GRAAL_ONLY(stats->_nmethods_code_size += code->insts_size();) |
0 | 2318 } |
2319 | |
2320 if (UsePerfData) { | |
2321 // save the name of the last method compiled | |
2322 _perf_last_method->set_value(counters->current_method()); | |
2323 _perf_last_compile_type->set_value(counters->compile_type()); | |
2324 _perf_last_compile_size->set_value(method->code_size() + | |
2325 task->num_inlined_bytecodes()); | |
2326 if (is_osr) { | |
2327 _perf_osr_compilation->inc(time.ticks()); | |
2328 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
2329 } else { | |
2330 _perf_standard_compilation->inc(time.ticks()); | |
2331 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
2332 } | |
2333 } | |
2334 | |
2335 if (CITimeEach) { | |
2336 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
2337 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
2338 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
2339 } | |
2340 | |
2341 // Collect counts of successful compilations | |
1748 | 2342 _sum_nmethod_size += code->total_size(); |
2343 _sum_nmethod_code_size += code->insts_size(); | |
0 | 2344 _total_compile_count++; |
2345 | |
2346 if (UsePerfData) { | |
1748 | 2347 _perf_sum_nmethod_size->inc( code->total_size()); |
2348 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
0 | 2349 _perf_total_compile_count->inc(); |
2350 } | |
2351 | |
2352 if (is_osr) { | |
2353 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
2354 _total_osr_compile_count++; | |
2355 } else { | |
2356 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
2357 _total_standard_compile_count++; | |
2358 } | |
2359 } | |
2360 // set the current method for the thread to null | |
2361 if (UsePerfData) counters->set_current_method(""); | |
2362 } | |
2363 | |
8771
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2364 const char* CompileBroker::compiler_name(int comp_level) { |
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2365 AbstractCompiler *comp = CompileBroker::compiler(comp_level); |
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2366 if (comp == NULL) { |
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2367 return "no compiler"; |
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2368 } else { |
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2369 return (comp->name()); |
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2370 } |
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2371 } |
0 | 2372 |
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2373 #ifdef GRAAL |
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2374 void CompileBroker::print_times(AbstractCompiler* comp) { |
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2375 CompilerStatistics* stats = comp->stats(); |
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2376 tty->print_cr(" %s {speed: %d bytes/s; standard: %6.3f s, %d bytes, %d methods; osr: %6.3f s, %d bytes, %d methods; nmethods_size: %d bytes; nmethods_code_size: %d bytes}", |
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2377 comp->name(), stats->bytes_per_second(), |
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2378 stats->_standard._time.seconds(), stats->_standard._bytes, stats->_standard._count, |
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2379 stats->_osr._time.seconds(), stats->_osr._bytes, stats->_osr._count, |
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2380 stats->_nmethods_size, stats->_nmethods_code_size); |
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2381 } |
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2382 #endif |
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2383 |
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2384 void CompileBroker::print_times(bool per_compiler, bool aggregate) { |
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2385 #ifdef GRAAL |
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2386 elapsedTimer standard_compilation; |
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2387 elapsedTimer total_compilation; |
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2388 elapsedTimer osr_compilation; |
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2389 |
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2390 int standard_bytes_compiled = 0; |
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2391 int osr_bytes_compiled = 0; |
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2392 |
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2393 int standard_compile_count = 0; |
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2394 int osr_compile_count = 0; |
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2395 int total_compile_count = 0; |
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2396 |
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2397 int nmethods_size = 0; |
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2398 int nmethods_code_size = 0; |
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2399 bool printedHeader = false; |
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2400 |
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2401 for (unsigned int i = 0; i < sizeof(_compilers) / sizeof(AbstractCompiler*); i++) { |
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2402 AbstractCompiler* comp = _compilers[i]; |
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2403 if (comp != NULL) { |
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2404 if (per_compiler && aggregate && !printedHeader) { |
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2405 printedHeader = true; |
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2406 tty->cr(); |
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2407 tty->print_cr("Individual compiler times (for compiled methods only)"); |
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2408 tty->print_cr("------------------------------------------------"); |
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2409 tty->cr(); |
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2410 } |
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2411 CompilerStatistics* stats = comp->stats(); |
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2412 |
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2413 standard_compilation.add(stats->_standard._time); |
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2414 osr_compilation.add(stats->_osr._time); |
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2415 |
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2416 standard_bytes_compiled += stats->_standard._bytes; |
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2417 osr_bytes_compiled += stats->_osr._bytes; |
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2418 |
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2419 standard_compile_count += stats->_standard._count; |
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2420 osr_compile_count += stats->_osr._count; |
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2421 |
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2422 nmethods_size += stats->_nmethods_size; |
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2423 nmethods_code_size += stats->_nmethods_code_size; |
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2424 |
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2425 if (per_compiler) { |
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2426 print_times(comp); |
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2427 } |
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2428 } |
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2429 } |
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2430 total_compile_count = osr_compile_count + standard_compile_count; |
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2431 total_compilation.add(osr_compilation); |
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2432 total_compilation.add(standard_compilation); |
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2433 #else |
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2434 elapsedTimer standard_compilation = CompileBroker::_t_standard_compilation; |
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2435 elapsedTimer osr_compilation = CompileBroker::_t_osr_compilation; |
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2436 elapsedTimer total_compilation = CompileBroker::_t_total_compilation; |
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2437 |
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2438 int standard_bytes_compiled = CompileBroker::_sum_standard_bytes_compiled; |
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2439 int osr_bytes_compiled = CompileBroker::_sum_osr_bytes_compiled; |
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2440 |
f6c511451e4a
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2441 int standard_compile_count = CompileBroker::_total_standard_compile_count; |
f6c511451e4a
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2442 int osr_compile_count = CompileBroker::_total_osr_compile_count; |
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2443 int total_compile_count = CompileBroker::_total_compile_count; |
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2444 |
f6c511451e4a
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2445 int nmethods_size = CompileBroker::_sum_nmethod_code_size; |
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2446 int nmethods_code_size = CompileBroker::_sum_nmethod_size; |
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2447 #endif |
f6c511451e4a
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2448 |
13364
5a4293f24642
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2449 if (!aggregate) { |
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2450 return; |
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2451 } |
0 | 2452 tty->cr(); |
2453 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
2454 tty->print_cr("------------------------------------------------"); | |
2455 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
2456 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
12779
f6c511451e4a
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2457 tty->print_cr(" Total compilation time : %6.3f s", total_compilation.seconds()); |
0 | 2458 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", |
12779
f6c511451e4a
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2459 standard_compilation.seconds(), |
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2460 standard_compilation.seconds() / standard_compile_count); |
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2461 tty->print_cr(" On stack replacement : %6.3f s, Average : %2.3f", osr_compilation.seconds(), osr_compilation.seconds() / osr_compile_count); |
1131 | 2462 |
8771
75a28f465a12
8008663: [parfait] Null pointer deference in hotspot/src/share/vm/compiler/compileBroker.cpp
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2463 AbstractCompiler *comp = compiler(CompLevel_simple); |
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2464 if (comp != NULL) { |
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2465 comp->print_timers(); |
0 | 2466 } |
8771
75a28f465a12
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|
2467 comp = compiler(CompLevel_full_optimization); |
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2468 if (comp != NULL) { |
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2469 comp->print_timers(); |
1783 | 2470 } |
0 | 2471 tty->cr(); |
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2472 tty->print_cr(" Total compiled methods : %6d methods", total_compile_count); |
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2473 tty->print_cr(" Standard compilation : %6d methods", standard_compile_count); |
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2474 tty->print_cr(" On stack replacement : %6d methods", osr_compile_count); |
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2475 int tcb = osr_bytes_compiled + standard_bytes_compiled; |
0 | 2476 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); |
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2477 tty->print_cr(" Standard compilation : %6d bytes", standard_bytes_compiled); |
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2478 tty->print_cr(" On stack replacement : %6d bytes", osr_bytes_compiled); |
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2479 double tcs = total_compilation.seconds(); |
7568
140d4d4ab3b9
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|
2480 int bps = tcs == 0.0 ? 0 : (int)(tcb / tcs); |
0 | 2481 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); |
2482 tty->cr(); | |
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2483 tty->print_cr(" nmethod code size : %6d bytes", nmethods_code_size); |
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2484 tty->print_cr(" nmethod total size : %6d bytes", nmethods_size); |
0 | 2485 } |
2486 | |
2487 // Debugging output for failure | |
2488 void CompileBroker::print_last_compile() { | |
2489 if ( _last_compile_level != CompLevel_none && | |
2490 compiler(_last_compile_level) != NULL && | |
2491 _last_method_compiled != NULL && | |
2492 _last_compile_type != no_compile) { | |
2493 if (_last_compile_type == osr_compile) { | |
2494 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
2495 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
2496 } else { | |
2497 tty->print_cr("Last parse: %d+++(%d) %s", | |
2498 _compilation_id, _last_compile_level, _last_method_compiled); | |
2499 } | |
2500 } | |
2501 } | |
2502 | |
2503 | |
2504 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
2505 #ifndef PRODUCT | |
2506 st->print_cr("Compiler thread printing unimplemented."); | |
2507 st->cr(); | |
2508 #endif | |
2509 } |