Mercurial > hg > graal-compiler
annotate src/share/vm/compiler/compileBroker.cpp @ 8152:2bc6f232f74e
More fixes in the C++ part.
| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Thu, 07 Mar 2013 21:18:35 +0100 |
| parents | 5fc51c1ecdeb |
| children | b9a918201d47 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1999, 2012, 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" | |
| 46 #include "utilities/dtrace.hpp" | |
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47 #include "utilities/events.hpp" |
| 1972 | 48 #ifdef COMPILER1 |
| 49 #include "c1/c1_Compiler.hpp" | |
| 50 #endif | |
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51 #ifdef GRAAL |
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52 #include "graal/graalCompiler.hpp" |
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53 #endif |
| 1972 | 54 #ifdef COMPILER2 |
| 55 #include "opto/c2compiler.hpp" | |
| 56 #endif | |
| 57 #ifdef SHARK | |
| 58 #include "shark/sharkCompiler.hpp" | |
| 59 #endif | |
| 0 | 60 |
| 61 #ifdef DTRACE_ENABLED | |
| 62 | |
| 63 // Only bother with this argument setup if dtrace is available | |
| 64 | |
| 4006 | 65 #ifndef USDT2 |
| 0 | 66 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, |
| 67 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
| 68 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
| 69 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
| 70 | |
| 71 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 72 { \ | |
| 73 char* comp_name = (char*)(compiler)->name(); \ | |
|
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74 Symbol* klass_name = (method)->klass_name(); \ |
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75 Symbol* name = (method)->name(); \ |
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76 Symbol* signature = (method)->signature(); \ |
| 0 | 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(compiler, method, success) \ | |
| 85 { \ | |
| 86 char* comp_name = (char*)(compiler)->name(); \ | |
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87 Symbol* klass_name = (method)->klass_name(); \ |
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88 Symbol* name = (method)->name(); \ |
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89 Symbol* signature = (method)->signature(); \ |
| 0 | 90 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ |
| 91 comp_name, strlen(comp_name), \ | |
| 92 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 93 name->bytes(), name->utf8_length(), \ | |
| 94 signature->bytes(), signature->utf8_length(), (success)); \ | |
| 95 } | |
| 96 | |
| 4006 | 97 #else /* USDT2 */ |
| 98 | |
| 99 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 100 { \ | |
| 101 char* comp_name = (char*)(compiler)->name(); \ | |
| 102 Symbol* klass_name = (method)->klass_name(); \ | |
| 103 Symbol* name = (method)->name(); \ | |
| 104 Symbol* signature = (method)->signature(); \ | |
| 105 HOTSPOT_METHOD_COMPILE_BEGIN( \ | |
| 106 comp_name, strlen(comp_name), \ | |
| 107 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 108 (char *) name->bytes(), name->utf8_length(), \ | |
| 109 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 110 } | |
| 111 | |
| 112 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 113 { \ | |
| 114 char* comp_name = (char*)(compiler)->name(); \ | |
| 115 Symbol* klass_name = (method)->klass_name(); \ | |
| 116 Symbol* name = (method)->name(); \ | |
| 117 Symbol* signature = (method)->signature(); \ | |
| 118 HOTSPOT_METHOD_COMPILE_END( \ | |
| 119 comp_name, strlen(comp_name), \ | |
| 120 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 121 (char *) name->bytes(), name->utf8_length(), \ | |
| 122 (char *) signature->bytes(), signature->utf8_length(), (success)); \ | |
| 123 } | |
| 124 #endif /* USDT2 */ | |
| 125 | |
| 0 | 126 #else // ndef DTRACE_ENABLED |
| 127 | |
| 128 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) | |
| 129 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) | |
| 130 | |
| 131 #endif // ndef DTRACE_ENABLED | |
| 132 | |
| 133 bool CompileBroker::_initialized = false; | |
| 134 volatile bool CompileBroker::_should_block = false; | |
| 1202 | 135 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
| 0 | 136 |
| 137 // The installed compiler(s) | |
| 138 AbstractCompiler* CompileBroker::_compilers[2]; | |
| 139 | |
| 140 // These counters are used for assigning id's to each compilation | |
| 141 uint CompileBroker::_compilation_id = 0; | |
| 142 uint CompileBroker::_osr_compilation_id = 0; | |
| 143 | |
| 144 // Debugging information | |
| 145 int CompileBroker::_last_compile_type = no_compile; | |
| 146 int CompileBroker::_last_compile_level = CompLevel_none; | |
| 147 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
| 148 | |
| 149 // Performance counters | |
| 150 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
| 151 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
| 152 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
| 153 | |
| 154 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
| 155 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
| 156 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
| 157 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
| 158 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
| 159 | |
| 160 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
| 161 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
| 162 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
| 163 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
| 164 | |
| 165 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
| 166 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
| 167 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
| 168 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
| 169 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
| 170 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
| 171 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
| 172 | |
| 173 // Timers and counters for generating statistics | |
| 174 elapsedTimer CompileBroker::_t_total_compilation; | |
| 175 elapsedTimer CompileBroker::_t_osr_compilation; | |
| 176 elapsedTimer CompileBroker::_t_standard_compilation; | |
| 177 | |
| 178 int CompileBroker::_total_bailout_count = 0; | |
| 179 int CompileBroker::_total_invalidated_count = 0; | |
| 180 int CompileBroker::_total_compile_count = 0; | |
| 181 int CompileBroker::_total_osr_compile_count = 0; | |
| 182 int CompileBroker::_total_standard_compile_count = 0; | |
| 183 | |
| 184 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
| 185 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
| 186 int CompileBroker::_sum_nmethod_size = 0; | |
| 187 int CompileBroker::_sum_nmethod_code_size = 0; | |
| 188 | |
| 1783 | 189 CompileQueue* CompileBroker::_c2_method_queue = NULL; |
| 190 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
| 0 | 191 CompileTask* CompileBroker::_task_free_list = NULL; |
| 192 | |
| 193 GrowableArray<CompilerThread*>* CompileBroker::_method_threads = NULL; | |
| 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 | |
| 365 st->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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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 | |
| 373 // print compiler name if requested | |
| 374 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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375 print_compilation(); |
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376 } |
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377 |
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378 |
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379 // ------------------------------------------------------------------ |
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380 // CompileTask::print_compilation_impl |
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381 void CompileTask::print_compilation_impl(outputStream* st, Method* method, int compile_id, int comp_level, |
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382 bool is_osr_method, int osr_bci, bool is_blocking, |
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383 const char* msg, bool short_form) { |
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384 if (!short_form) { |
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385 st->print("%7d ", (int) st->time_stamp().milliseconds()); // print timestamp |
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386 } |
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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'> | |
| 511 if (_compile_id != 0) log->print(" compile_id='%d'", _compile_id); | |
| 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 } | |
| 519 if (_comp_level != CompLevel_highest_tier) { | |
| 520 log->print(" level='%d'", _comp_level); | |
| 521 } | |
| 522 if (_is_blocking) { | |
| 523 log->print(" blocking='1'"); | |
| 524 } | |
| 525 log->stamp(); | |
| 526 } | |
| 527 | |
| 528 | |
| 529 // ------------------------------------------------------------------ | |
| 530 // CompileTask::log_task_queued | |
| 531 void CompileTask::log_task_queued() { | |
| 532 Thread* thread = Thread::current(); | |
| 533 ttyLocker ttyl; | |
| 534 ResourceMark rm(thread); | |
| 535 | |
| 536 xtty->begin_elem("task_queued"); | |
| 537 log_task(xtty); | |
| 538 if (_comment != NULL) { | |
| 539 xtty->print(" comment='%s'", _comment); | |
| 540 } | |
| 541 if (_hot_method != NULL) { | |
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542 methodHandle hot(thread, _hot_method); |
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543 methodHandle method(thread, _method); |
| 0 | 544 if (hot() != method()) { |
| 545 xtty->method(hot); | |
| 546 } | |
| 547 } | |
| 548 if (_hot_count != 0) { | |
| 549 xtty->print(" hot_count='%d'", _hot_count); | |
| 550 } | |
| 551 xtty->end_elem(); | |
| 552 } | |
| 553 | |
| 554 | |
| 555 // ------------------------------------------------------------------ | |
| 556 // CompileTask::log_task_start | |
| 557 void CompileTask::log_task_start(CompileLog* log) { | |
| 558 log->begin_head("task"); | |
| 559 log_task(log); | |
| 560 log->end_head(); | |
| 561 } | |
| 562 | |
| 563 | |
| 564 // ------------------------------------------------------------------ | |
| 565 // CompileTask::log_task_done | |
| 566 void CompileTask::log_task_done(CompileLog* log) { | |
| 567 Thread* thread = Thread::current(); | |
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568 methodHandle method(thread, this->method()); |
| 0 | 569 ResourceMark rm(thread); |
| 570 | |
| 571 // <task_done ... stamp='1.234'> </task> | |
| 572 nmethod* nm = code(); | |
| 573 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
| 1748 | 574 _is_success, nm == NULL ? 0 : nm->content_size(), |
| 0 | 575 method->invocation_count()); |
| 576 int bec = method->backedge_count(); | |
| 577 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
| 578 // Note: "_is_complete" is about to be set, but is not. | |
| 579 if (_num_inlined_bytecodes != 0) { | |
| 580 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
| 581 } | |
| 582 log->stamp(); | |
| 583 log->end_elem(); | |
| 584 log->tail("task"); | |
| 585 log->clear_identities(); // next task will have different CI | |
| 586 if (log->unflushed_count() > 2000) { | |
| 587 log->flush(); | |
| 588 } | |
| 589 log->mark_file_end(); | |
| 590 } | |
| 591 | |
| 592 | |
| 593 | |
| 594 // ------------------------------------------------------------------ | |
| 595 // CompileQueue::add | |
| 596 // | |
| 597 // Add a CompileTask to a CompileQueue | |
| 598 void CompileQueue::add(CompileTask* task) { | |
| 599 assert(lock()->owned_by_self(), "must own lock"); | |
| 600 | |
| 601 task->set_next(NULL); | |
| 1783 | 602 task->set_prev(NULL); |
| 0 | 603 |
| 604 if (_last == NULL) { | |
| 605 // The compile queue is empty. | |
| 606 assert(_first == NULL, "queue is empty"); | |
| 607 _first = task; | |
| 608 _last = task; | |
| 609 } else { | |
| 610 // Append the task to the queue. | |
| 611 assert(_last->next() == NULL, "not last"); | |
| 612 _last->set_next(task); | |
| 1783 | 613 task->set_prev(_last); |
| 0 | 614 _last = task; |
| 615 } | |
| 1783 | 616 ++_size; |
| 0 | 617 |
| 618 // Mark the method as being in the compile queue. | |
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619 task->method()->set_queued_for_compilation(); |
| 0 | 620 |
| 621 if (CIPrintCompileQueue) { | |
| 622 print(); | |
| 623 } | |
| 624 | |
| 625 if (LogCompilation && xtty != NULL) { | |
| 626 task->log_task_queued(); | |
| 627 } | |
| 628 | |
| 629 // Notify CompilerThreads that a task is available. | |
| 1783 | 630 lock()->notify_all(); |
| 0 | 631 } |
| 632 | |
| 633 // ------------------------------------------------------------------ | |
| 634 // CompileQueue::get | |
| 635 // | |
| 636 // Get the next CompileTask from a CompileQueue | |
| 637 CompileTask* CompileQueue::get() { | |
|
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638 NMethodSweeper::possibly_sweep(); |
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639 |
| 0 | 640 MutexLocker locker(lock()); |
| 641 // Wait for an available CompileTask. | |
| 642 while (_first == NULL) { | |
| 643 // There is no work to be done right now. Wait. | |
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644 if (UseCodeCacheFlushing && (!CompileBroker::should_compile_new_jobs() || CodeCache::needs_flushing())) { |
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645 // During the emergency sweeping periods, wake up and sweep occasionally |
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646 bool timedout = lock()->wait(!Mutex::_no_safepoint_check_flag, NmethodSweepCheckInterval*1000); |
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647 if (timedout) { |
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648 MutexUnlocker ul(lock()); |
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649 // When otherwise not busy, run nmethod sweeping |
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650 NMethodSweeper::possibly_sweep(); |
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651 } |
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652 } else { |
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653 // During normal operation no need to wake up on timer |
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654 lock()->wait(); |
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655 } |
| 0 | 656 } |
| 1783 | 657 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
| 658 remove(task); | |
| 659 return task; | |
| 660 } | |
| 0 | 661 |
| 1783 | 662 void CompileQueue::remove(CompileTask* task) |
| 663 { | |
| 664 assert(lock()->owned_by_self(), "must own lock"); | |
| 665 if (task->prev() != NULL) { | |
| 666 task->prev()->set_next(task->next()); | |
| 667 } else { | |
| 668 // max is the first element | |
| 669 assert(task == _first, "Sanity"); | |
| 670 _first = task->next(); | |
| 0 | 671 } |
| 672 | |
| 1783 | 673 if (task->next() != NULL) { |
| 674 task->next()->set_prev(task->prev()); | |
| 675 } else { | |
| 676 // max is the last element | |
| 677 assert(task == _last, "Sanity"); | |
| 678 _last = task->prev(); | |
| 679 } | |
| 680 --_size; | |
| 0 | 681 } |
| 682 | |
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683 // methods in the compile queue need to be marked as used on the stack |
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684 // so that they don't get reclaimed by Redefine Classes |
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685 void CompileQueue::mark_on_stack() { |
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686 CompileTask* task = _first; |
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687 while (task != NULL) { |
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688 task->mark_on_stack(); |
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689 task = task->next(); |
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690 } |
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691 } |
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692 |
| 0 | 693 // ------------------------------------------------------------------ |
| 694 // CompileQueue::print | |
| 695 void CompileQueue::print() { | |
| 696 tty->print_cr("Contents of %s", name()); | |
| 697 tty->print_cr("----------------------"); | |
| 698 CompileTask* task = _first; | |
| 699 while (task != NULL) { | |
| 700 task->print_line(); | |
| 701 task = task->next(); | |
| 702 } | |
| 703 tty->print_cr("----------------------"); | |
| 704 } | |
| 705 | |
| 706 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
| 707 | |
| 708 _current_method[0] = '\0'; | |
| 709 _compile_type = CompileBroker::no_compile; | |
| 710 | |
| 711 if (UsePerfData) { | |
| 712 ResourceMark rm; | |
| 713 | |
| 714 // create the thread instance name space string - don't create an | |
| 715 // instance subspace if instance is -1 - keeps the adapterThread | |
| 716 // counters from having a ".0" namespace. | |
| 717 const char* thread_i = (instance == -1) ? thread_name : | |
| 718 PerfDataManager::name_space(thread_name, instance); | |
| 719 | |
| 720 | |
| 721 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
| 722 _perf_current_method = | |
| 723 PerfDataManager::create_string_variable(SUN_CI, name, | |
| 724 cmname_buffer_length, | |
| 725 _current_method, CHECK); | |
| 726 | |
| 727 name = PerfDataManager::counter_name(thread_i, "type"); | |
| 728 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
| 729 PerfData::U_None, | |
| 730 (jlong)_compile_type, | |
| 731 CHECK); | |
| 732 | |
| 733 name = PerfDataManager::counter_name(thread_i, "time"); | |
| 734 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
| 735 PerfData::U_Ticks, CHECK); | |
| 736 | |
| 737 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
| 738 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
| 739 PerfData::U_Events, CHECK); | |
| 740 } | |
| 741 } | |
| 742 | |
| 743 // ------------------------------------------------------------------ | |
| 744 // CompileBroker::compilation_init | |
| 745 // | |
| 746 // Initialize the Compilation object | |
| 747 void CompileBroker::compilation_init() { | |
| 748 _last_method_compiled[0] = '\0'; | |
| 749 | |
| 1970 | 750 #ifndef SHARK |
| 0 | 751 // Set the interface to the current compiler(s). |
| 1783 | 752 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
| 753 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
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754 |
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755 #ifdef GRAAL |
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756 GraalCompiler* graal = new GraalCompiler(); |
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757 #endif |
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758 |
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759 #if defined(GRAALVM) |
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760 _compilers[0] = graal; |
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761 c1_count = 0; |
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762 c2_count = 0; |
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763 #elif defined(COMPILER1) |
| 1783 | 764 if (c1_count > 0) { |
| 765 _compilers[0] = new Compiler(); | |
| 766 } | |
| 0 | 767 #endif // COMPILER1 |
| 768 | |
| 769 #ifdef COMPILER2 | |
| 1783 | 770 if (c2_count > 0) { |
| 771 _compilers[1] = new C2Compiler(); | |
| 772 } | |
| 0 | 773 #endif // COMPILER2 |
| 774 | |
| 1970 | 775 #else // SHARK |
| 776 int c1_count = 0; | |
| 777 int c2_count = 1; | |
| 778 | |
| 779 _compilers[1] = new SharkCompiler(); | |
| 780 #endif // SHARK | |
| 1692 | 781 |
| 0 | 782 // Initialize the CompileTask free list |
| 783 _task_free_list = NULL; | |
| 784 | |
| 785 // Start the CompilerThreads | |
| 1783 | 786 init_compiler_threads(c1_count, c2_count); |
| 0 | 787 // totalTime performance counter is always created as it is required |
| 788 // by the implementation of java.lang.management.CompilationMBean. | |
| 789 { | |
| 790 EXCEPTION_MARK; | |
| 791 _perf_total_compilation = | |
| 792 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
| 793 PerfData::U_Ticks, CHECK); | |
| 794 } | |
| 795 | |
| 796 | |
| 797 if (UsePerfData) { | |
| 798 | |
| 799 EXCEPTION_MARK; | |
| 800 | |
| 801 // create the jvmstat performance counters | |
| 802 _perf_osr_compilation = | |
| 803 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
| 804 PerfData::U_Ticks, CHECK); | |
| 805 | |
| 806 _perf_standard_compilation = | |
| 807 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
| 808 PerfData::U_Ticks, CHECK); | |
| 809 | |
| 810 _perf_total_bailout_count = | |
| 811 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
| 812 PerfData::U_Events, CHECK); | |
| 813 | |
| 814 _perf_total_invalidated_count = | |
| 815 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
| 816 PerfData::U_Events, CHECK); | |
| 817 | |
| 818 _perf_total_compile_count = | |
| 819 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
| 820 PerfData::U_Events, CHECK); | |
| 821 _perf_total_osr_compile_count = | |
| 822 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
| 823 PerfData::U_Events, CHECK); | |
| 824 | |
| 825 _perf_total_standard_compile_count = | |
| 826 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
| 827 PerfData::U_Events, CHECK); | |
| 828 | |
| 829 _perf_sum_osr_bytes_compiled = | |
| 830 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
| 831 PerfData::U_Bytes, CHECK); | |
| 832 | |
| 833 _perf_sum_standard_bytes_compiled = | |
| 834 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
| 835 PerfData::U_Bytes, CHECK); | |
| 836 | |
| 837 _perf_sum_nmethod_size = | |
| 838 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
| 839 PerfData::U_Bytes, CHECK); | |
| 840 | |
| 841 _perf_sum_nmethod_code_size = | |
| 842 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
| 843 PerfData::U_Bytes, CHECK); | |
| 844 | |
| 845 _perf_last_method = | |
| 846 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
| 847 CompilerCounters::cmname_buffer_length, | |
| 848 "", CHECK); | |
| 849 | |
| 850 _perf_last_failed_method = | |
| 851 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
| 852 CompilerCounters::cmname_buffer_length, | |
| 853 "", CHECK); | |
| 854 | |
| 855 _perf_last_invalidated_method = | |
| 856 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
| 857 CompilerCounters::cmname_buffer_length, | |
| 858 "", CHECK); | |
| 859 | |
| 860 _perf_last_compile_type = | |
| 861 PerfDataManager::create_variable(SUN_CI, "lastType", | |
| 862 PerfData::U_None, | |
| 863 (jlong)CompileBroker::no_compile, | |
| 864 CHECK); | |
| 865 | |
| 866 _perf_last_compile_size = | |
| 867 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
| 868 PerfData::U_Bytes, | |
| 869 (jlong)CompileBroker::no_compile, | |
| 870 CHECK); | |
| 871 | |
| 872 | |
| 873 _perf_last_failed_type = | |
| 874 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
| 875 PerfData::U_None, | |
| 876 (jlong)CompileBroker::no_compile, | |
| 877 CHECK); | |
| 878 | |
| 879 _perf_last_invalidated_type = | |
| 880 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
| 881 PerfData::U_None, | |
| 882 (jlong)CompileBroker::no_compile, | |
| 883 CHECK); | |
| 884 } | |
| 885 | |
| 886 _initialized = true; | |
| 887 } | |
| 888 | |
| 889 | |
| 890 | |
| 891 // ------------------------------------------------------------------ | |
| 892 // CompileBroker::make_compiler_thread | |
| 893 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS) { | |
| 894 CompilerThread* compiler_thread = NULL; | |
| 895 | |
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896 Klass* k = |
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897 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_Thread(), |
| 0 | 898 true, CHECK_0); |
| 899 instanceKlassHandle klass (THREAD, k); | |
| 900 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
| 901 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
| 902 | |
| 903 // Initialize thread_oop to put it into the system threadGroup | |
| 904 Handle thread_group (THREAD, Universe::system_thread_group()); | |
| 905 JavaValue result(T_VOID); | |
| 906 JavaCalls::call_special(&result, thread_oop, | |
| 907 klass, | |
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908 vmSymbols::object_initializer_name(), |
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909 vmSymbols::threadgroup_string_void_signature(), |
| 0 | 910 thread_group, |
| 911 string, | |
| 912 CHECK_0); | |
| 913 | |
| 914 { | |
| 915 MutexLocker mu(Threads_lock, THREAD); | |
| 916 compiler_thread = new CompilerThread(queue, counters); | |
| 917 // At this point the new CompilerThread data-races with this startup | |
| 918 // thread (which I believe is the primoridal thread and NOT the VM | |
| 919 // thread). This means Java bytecodes being executed at startup can | |
| 920 // queue compile jobs which will run at whatever default priority the | |
| 921 // newly created CompilerThread runs at. | |
| 922 | |
| 923 | |
| 924 // At this point it may be possible that no osthread was created for the | |
| 925 // JavaThread due to lack of memory. We would have to throw an exception | |
| 926 // in that case. However, since this must work and we do not allow | |
| 927 // exceptions anyway, check and abort if this fails. | |
| 928 | |
| 929 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
| 930 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
| 931 "unable to create new native thread"); | |
| 932 } | |
| 933 | |
| 934 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
| 935 | |
| 936 // Note that this only sets the JavaThread _priority field, which by | |
| 937 // definition is limited to Java priorities and not OS priorities. | |
| 938 // The os-priority is set in the CompilerThread startup code itself | |
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939 |
| 0 | 940 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); |
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941 |
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942 // Note that we cannot call os::set_priority because it expects Java |
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943 // priorities and we are *explicitly* using OS priorities so that it's |
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944 // possible to set the compiler thread priority higher than any Java |
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945 // thread. |
| 0 | 946 |
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947 int native_prio = CompilerThreadPriority; |
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948 if (native_prio == -1) { |
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949 if (UseCriticalCompilerThreadPriority) { |
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950 native_prio = os::java_to_os_priority[CriticalPriority]; |
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951 } else { |
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952 native_prio = os::java_to_os_priority[NearMaxPriority]; |
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953 } |
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954 } |
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955 os::set_native_priority(compiler_thread, native_prio); |
| 0 | 956 |
| 957 java_lang_Thread::set_daemon(thread_oop()); | |
| 958 | |
| 959 compiler_thread->set_threadObj(thread_oop()); | |
| 960 Threads::add(compiler_thread); | |
| 961 Thread::start(compiler_thread); | |
| 962 } | |
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963 |
| 0 | 964 // Let go of Threads_lock before yielding |
| 965 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
| 966 | |
| 967 return compiler_thread; | |
| 968 } | |
| 969 | |
| 970 | |
| 971 // ------------------------------------------------------------------ | |
| 972 // CompileBroker::init_compiler_threads | |
| 973 // | |
| 974 // Initialize the compilation queue | |
| 1783 | 975 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
| 0 | 976 EXCEPTION_MARK; |
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977 #if !defined(ZERO) && !defined(SHARK) && !defined(GRAALVM) |
| 1783 | 978 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
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979 #endif // !ZERO && !SHARK && !GRAALVM |
| 1783 | 980 if (c2_compiler_count > 0) { |
| 981 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
| 982 } | |
| 983 if (c1_compiler_count > 0) { | |
| 984 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
| 985 } | |
| 0 | 986 |
| 1783 | 987 int compiler_count = c1_compiler_count + c2_compiler_count; |
| 988 | |
| 0 | 989 _method_threads = |
| 6197 | 990 new (ResourceObj::C_HEAP, mtCompiler) GrowableArray<CompilerThread*>(compiler_count, true); |
| 0 | 991 |
| 992 char name_buffer[256]; | |
| 1783 | 993 for (int i = 0; i < c2_compiler_count; i++) { |
| 0 | 994 // Create a name for our thread. |
| 1783 | 995 sprintf(name_buffer, "C2 CompilerThread%d", i); |
| 0 | 996 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
| 1783 | 997 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, CHECK); |
| 0 | 998 _method_threads->append(new_thread); |
| 999 } | |
| 1783 | 1000 |
| 1001 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
| 1002 // Create a name for our thread. | |
| 1003 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
| 1004 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
| 1005 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, CHECK); | |
| 1006 _method_threads->append(new_thread); | |
| 1007 } | |
| 1008 | |
| 0 | 1009 if (UsePerfData) { |
| 1010 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, | |
| 1011 compiler_count, CHECK); | |
| 1012 } | |
| 1013 } | |
| 1014 | |
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1015 |
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1016 // Set the methods on the stack as on_stack so that redefine classes doesn't |
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1017 // reclaim them |
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1018 void CompileBroker::mark_on_stack() { |
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1019 if (_c2_method_queue != NULL) { |
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1020 _c2_method_queue->mark_on_stack(); |
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1021 } |
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1022 if (_c1_method_queue != NULL) { |
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1023 _c1_method_queue->mark_on_stack(); |
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1024 } |
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1025 } |
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1026 |
| 0 | 1027 // ------------------------------------------------------------------ |
| 1028 // CompileBroker::is_idle | |
| 1029 bool CompileBroker::is_idle() { | |
| 1783 | 1030 if (_c2_method_queue != NULL && !_c2_method_queue->is_empty()) { |
| 1031 return false; | |
| 1032 } else if (_c1_method_queue != NULL && !_c1_method_queue->is_empty()) { | |
| 0 | 1033 return false; |
| 1034 } else { | |
| 1035 int num_threads = _method_threads->length(); | |
| 1036 for (int i=0; i<num_threads; i++) { | |
| 1037 if (_method_threads->at(i)->task() != NULL) { | |
| 1038 return false; | |
| 1039 } | |
| 1040 } | |
| 1041 } | |
|
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1042 // No pending or active compilations. |
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1043 return true; |
| 0 | 1044 } |
| 1045 | |
| 1046 | |
| 1047 // ------------------------------------------------------------------ | |
| 1048 // CompileBroker::compile_method | |
| 1049 // | |
| 1050 // Request compilation of a method. | |
| 1051 void CompileBroker::compile_method_base(methodHandle method, | |
| 1052 int osr_bci, | |
| 1053 int comp_level, | |
| 1054 methodHandle hot_method, | |
| 1055 int hot_count, | |
| 1056 const char* comment, | |
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1057 Thread* thread) { |
| 0 | 1058 // do nothing if compiler thread(s) is not available |
| 1059 if (!_initialized ) { | |
| 1060 return; | |
| 1061 } | |
| 1062 | |
| 1063 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
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1064 assert(method->method_holder()->oop_is_instance(), |
| 0 | 1065 "sanity check"); |
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1066 assert(!method->method_holder()->is_not_initialized(), |
| 0 | 1067 "method holder must be initialized"); |
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1068 assert(!method->is_method_handle_intrinsic(), "do not enqueue these guys"); |
| 0 | 1069 |
| 1070 if (CIPrintRequests) { | |
| 1071 tty->print("request: "); | |
| 1072 method->print_short_name(tty); | |
| 1073 if (osr_bci != InvocationEntryBci) { | |
| 1074 tty->print(" osr_bci: %d", osr_bci); | |
| 1075 } | |
| 1076 tty->print(" comment: %s count: %d", comment, hot_count); | |
| 1077 if (!hot_method.is_null()) { | |
| 1078 tty->print(" hot: "); | |
| 1079 if (hot_method() != method()) { | |
| 1080 hot_method->print_short_name(tty); | |
| 1081 } else { | |
| 1082 tty->print("yes"); | |
| 1083 } | |
| 1084 } | |
| 1085 tty->cr(); | |
| 1086 } | |
| 1087 | |
| 1088 // A request has been made for compilation. Before we do any | |
| 1089 // real work, check to see if the method has been compiled | |
| 1090 // in the meantime with a definitive result. | |
| 1091 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1092 return; | |
| 1093 } | |
| 1094 | |
| 2403 | 1095 #ifndef PRODUCT |
| 1096 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) { | |
| 1097 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) { | |
| 1098 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI. | |
| 1099 return; | |
| 1100 } | |
| 1101 } | |
| 1102 #endif | |
| 1783 | 1103 |
| 0 | 1104 // If this method is already in the compile queue, then |
| 1105 // we do not block the current thread. | |
| 1106 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1107 // We may want to decay our counter a bit here to prevent | |
| 1108 // multiple denied requests for compilation. This is an | |
| 1109 // open compilation policy issue. Note: The other possibility, | |
| 1110 // in the case that this is a blocking compile request, is to have | |
| 1111 // all subsequent blocking requesters wait for completion of | |
| 1112 // ongoing compiles. Note that in this case we'll need a protocol | |
| 1113 // for freeing the associated compile tasks. [Or we could have | |
| 1114 // a single static monitor on which all these waiters sleep.] | |
| 1115 return; | |
| 1116 } | |
| 1117 | |
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1118 // If the requesting thread is holding the pending list lock |
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1119 // then we just return. We can't risk blocking while holding |
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1120 // the pending list lock or a 3-way deadlock may occur |
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1121 // between the reference handler thread, a GC (instigated |
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1122 // by a compiler thread), and compiled method registration. |
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1123 if (InstanceRefKlass::owns_pending_list_lock(JavaThread::current())) { |
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1124 return; |
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1125 } |
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1126 #ifdef GRAALVM |
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1127 if (!JavaThread::current()->is_compiling()) { |
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1128 method->set_queued_for_compilation(); |
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1129 GraalCompiler::instance()->compile_method(method, osr_bci, is_compile_blocking(method, osr_bci)); |
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1130 } else { |
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1131 // Recursive compile request => ignore. |
|
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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1132 } |
|
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1133 #else |
|
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1134 |
| 0 | 1135 // Outputs from the following MutexLocker block: |
| 1136 CompileTask* task = NULL; | |
| 1137 bool blocking = false; | |
| 1783 | 1138 CompileQueue* queue = compile_queue(comp_level); |
| 0 | 1139 |
| 1140 // Acquire our lock. | |
| 1141 { | |
|
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1142 MutexLocker locker(queue->lock(), thread); |
| 0 | 1143 |
| 1144 // Make sure the method has not slipped into the queues since | |
| 1145 // last we checked; note that those checks were "fast bail-outs". | |
| 1146 // Here we need to be more careful, see 14012000 below. | |
| 1147 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1148 return; | |
| 1149 } | |
| 1150 | |
| 1151 // We need to check again to see if the compilation has | |
| 1152 // completed. A previous compilation may have registered | |
| 1153 // some result. | |
| 1154 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1155 return; | |
| 1156 } | |
| 1157 | |
| 1158 // We now know that this compilation is not pending, complete, | |
| 1159 // or prohibited. Assign a compile_id to this compilation | |
| 1160 // and check to see if it is in our [Start..Stop) range. | |
| 1161 uint compile_id = assign_compile_id(method, osr_bci); | |
| 1162 if (compile_id == 0) { | |
| 1163 // The compilation falls outside the allowed range. | |
| 1164 return; | |
| 1165 } | |
| 1166 | |
| 1167 // Should this thread wait for completion of the compile? | |
| 1168 blocking = is_compile_blocking(method, osr_bci); | |
| 1169 | |
| 1170 // We will enter the compilation in the queue. | |
| 1171 // 14012000: Note that this sets the queued_for_compile bits in | |
| 1172 // the target method. We can now reason that a method cannot be | |
| 1173 // queued for compilation more than once, as follows: | |
| 1174 // Before a thread queues a task for compilation, it first acquires | |
| 1175 // the compile queue lock, then checks if the method's queued bits | |
| 1176 // are set or it has already been compiled. Thus there can not be two | |
| 1177 // instances of a compilation task for the same method on the | |
| 1178 // compilation queue. Consider now the case where the compilation | |
| 1179 // thread has already removed a task for that method from the queue | |
| 1180 // and is in the midst of compiling it. In this case, the | |
| 1181 // queued_for_compile bits must be set in the method (and these | |
| 1182 // will be visible to the current thread, since the bits were set | |
| 1183 // under protection of the compile queue lock, which we hold now. | |
| 1184 // When the compilation completes, the compiler thread first sets | |
| 1185 // the compilation result and then clears the queued_for_compile | |
| 1186 // bits. Neither of these actions are protected by a barrier (or done | |
| 1187 // under the protection of a lock), so the only guarantee we have | |
| 1188 // (on machines with TSO (Total Store Order)) is that these values | |
| 1189 // will update in that order. As a result, the only combinations of | |
| 1190 // these bits that the current thread will see are, in temporal order: | |
| 1191 // <RESULT, QUEUE> : | |
| 1192 // <0, 1> : in compile queue, but not yet compiled | |
| 1193 // <1, 1> : compiled but queue bit not cleared | |
| 1194 // <1, 0> : compiled and queue bit cleared | |
| 1195 // Because we first check the queue bits then check the result bits, | |
| 1196 // we are assured that we cannot introduce a duplicate task. | |
| 1197 // Note that if we did the tests in the reverse order (i.e. check | |
| 1198 // result then check queued bit), we could get the result bit before | |
| 1199 // the compilation completed, and the queue bit after the compilation | |
| 1200 // completed, and end up introducing a "duplicate" (redundant) task. | |
| 1201 // In that case, the compiler thread should first check if a method | |
| 1202 // has already been compiled before trying to compile it. | |
| 1203 // NOTE: in the event that there are multiple compiler threads and | |
| 1204 // there is de-optimization/recompilation, things will get hairy, | |
| 1205 // and in that case it's best to protect both the testing (here) of | |
| 1206 // these bits, and their updating (here and elsewhere) under a | |
| 1207 // common lock. | |
| 1783 | 1208 task = create_compile_task(queue, |
| 0 | 1209 compile_id, method, |
| 1210 osr_bci, comp_level, | |
| 1211 hot_method, hot_count, comment, | |
| 1212 blocking); | |
| 1213 } | |
| 1214 | |
| 1215 if (blocking) { | |
| 1216 wait_for_completion(task); | |
| 1217 } | |
|
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|
1218 #endif |
| 0 | 1219 } |
| 1220 | |
| 1221 | |
| 1222 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
| 1783 | 1223 int comp_level, |
| 0 | 1224 methodHandle hot_method, int hot_count, |
|
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1225 const char* comment, Thread* THREAD) { |
| 0 | 1226 // make sure arguments make sense |
|
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1227 assert(method->method_holder()->oop_is_instance(), "not an instance method"); |
| 0 | 1228 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); |
| 1229 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
|
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1230 assert(!method->method_holder()->is_not_initialized(), "method holder must be initialized"); |
| 0 | 1231 |
| 1783 | 1232 if (!TieredCompilation) { |
| 1233 comp_level = CompLevel_highest_tier; | |
| 0 | 1234 } |
| 1235 | |
| 1236 // return quickly if possible | |
| 1237 | |
| 1238 // lock, make sure that the compilation | |
| 1239 // isn't prohibited in a straightforward way. | |
| 1240 | |
| 7601 | 1241 if (compiler(comp_level) == NULL || !compiler(comp_level)->can_compile_method(method) || compilation_is_prohibited(method, osr_bci, comp_level)) { |
| 0 | 1242 return NULL; |
| 1243 } | |
| 1244 | |
| 1245 if (osr_bci == InvocationEntryBci) { | |
| 1246 // standard compilation | |
| 1247 nmethod* method_code = method->code(); | |
| 1783 | 1248 if (method_code != NULL) { |
| 1249 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1250 return method_code; | |
| 1251 } | |
| 0 | 1252 } |
| 1253 if (method->is_not_compilable(comp_level)) return NULL; | |
| 1202 | 1254 |
|
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1255 if (UseCodeCacheFlushing) { |
|
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1256 nmethod* saved = CodeCache::find_and_remove_saved_code(method()); |
|
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1257 if (saved != NULL) { |
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|
1258 method->set_code(method, saved); |
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1259 return saved; |
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|
1260 } |
| 1202 | 1261 } |
| 1262 | |
| 0 | 1263 } else { |
| 1264 // osr compilation | |
| 1265 #ifndef TIERED | |
| 1266 // seems like an assert of dubious value | |
| 1783 | 1267 assert(comp_level == CompLevel_highest_tier, |
| 0 | 1268 "all OSR compiles are assumed to be at a single compilation lavel"); |
| 1269 #endif // TIERED | |
| 1783 | 1270 // We accept a higher level osr method |
| 1271 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1272 if (nm != NULL) return nm; |
|
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1273 if (method->is_not_osr_compilable(comp_level)) return NULL; |
| 0 | 1274 } |
| 1275 | |
| 1276 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
| 1277 // some prerequisites that are compiler specific | |
| 2447 | 1278 if (compiler(comp_level)->is_c2() || compiler(comp_level)->is_shark()) { |
|
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1279 method->constants()->resolve_string_constants(CHECK_AND_CLEAR_NULL); |
| 0 | 1280 // Resolve all classes seen in the signature of the method |
| 1281 // we are compiling. | |
|
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1282 Method::load_signature_classes(method, CHECK_AND_CLEAR_NULL); |
| 0 | 1283 } |
| 1284 | |
| 1285 // If the method is native, do the lookup in the thread requesting | |
| 1286 // the compilation. Native lookups can load code, which is not | |
| 1287 // permitted during compilation. | |
| 1288 // | |
| 1289 // Note: A native method implies non-osr compilation which is | |
| 1290 // checked with an assertion at the entry of this method. | |
|
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1291 if (method->is_native() && !method->is_method_handle_intrinsic()) { |
| 0 | 1292 bool in_base_library; |
| 1293 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
| 1294 if (HAS_PENDING_EXCEPTION) { | |
| 1295 // In case of an exception looking up the method, we just forget | |
| 1296 // about it. The interpreter will kick-in and throw the exception. | |
| 1297 method->set_not_compilable(); // implies is_not_osr_compilable() | |
| 1298 CLEAR_PENDING_EXCEPTION; | |
| 1299 return NULL; | |
| 1300 } | |
| 1301 assert(method->has_native_function(), "must have native code by now"); | |
| 1302 } | |
| 1303 | |
| 1304 // RedefineClasses() has replaced this method; just return | |
| 1305 if (method->is_old()) { | |
| 1306 return NULL; | |
| 1307 } | |
| 1308 | |
| 1309 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
| 1310 // a lock the compiling thread can not acquire. Prefetch it here. | |
| 1311 if (JvmtiExport::should_post_compiled_method_load()) { | |
| 1312 method->jmethod_id(); | |
| 1313 } | |
| 1314 | |
| 1202 | 1315 // If the compiler is shut off due to code cache flushing or otherwise, |
| 1316 // fail out now so blocking compiles dont hang the java thread | |
| 1317 if (!should_compile_new_jobs() || (UseCodeCacheFlushing && CodeCache::needs_flushing())) { | |
| 1783 | 1318 CompilationPolicy::policy()->delay_compilation(method()); |
| 1202 | 1319 return NULL; |
| 1320 } | |
| 1321 | |
| 0 | 1322 // do the compilation |
| 1323 if (method->is_native()) { | |
|
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1324 if (!PreferInterpreterNativeStubs || method->is_method_handle_intrinsic()) { |
|
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1325 // Acquire our lock. |
|
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|
1326 int compile_id; |
|
3d58a4983660
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1327 { |
|
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1328 MutexLocker locker(MethodCompileQueue_lock, THREAD); |
|
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1329 compile_id = assign_compile_id(method, standard_entry_bci); |
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1330 } |
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1331 (void) AdapterHandlerLibrary::create_native_wrapper(method, compile_id); |
| 0 | 1332 } else { |
| 1333 return NULL; | |
| 1334 } | |
| 1335 } else { | |
|
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1336 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, THREAD); |
| 0 | 1337 } |
| 1338 | |
| 1339 // return requested nmethod | |
| 1783 | 1340 // We accept a higher level osr method |
| 1341 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1342 } |
| 1343 | |
| 1344 | |
| 1345 // ------------------------------------------------------------------ | |
| 1346 // CompileBroker::compilation_is_complete | |
| 1347 // | |
| 1348 // See if compilation of this method is already complete. | |
| 1349 bool CompileBroker::compilation_is_complete(methodHandle method, | |
| 1350 int osr_bci, | |
| 1351 int comp_level) { | |
| 1352 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1353 if (is_osr) { | |
|
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1354 if (method->is_not_osr_compilable(comp_level)) { |
| 0 | 1355 return true; |
| 1356 } else { | |
| 1783 | 1357 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
| 0 | 1358 return (result != NULL); |
| 1359 } | |
| 1360 } else { | |
| 1361 if (method->is_not_compilable(comp_level)) { | |
| 1362 return true; | |
| 1363 } else { | |
| 1364 nmethod* result = method->code(); | |
| 1365 if (result == NULL) return false; | |
| 1783 | 1366 return comp_level == result->comp_level(); |
| 0 | 1367 } |
| 1368 } | |
| 1369 } | |
| 1370 | |
| 1371 | |
| 1372 // ------------------------------------------------------------------ | |
| 1373 // CompileBroker::compilation_is_in_queue | |
| 1374 // | |
| 1375 // See if this compilation is already requested. | |
| 1376 // | |
| 1377 // Implementation note: there is only a single "is in queue" bit | |
| 1378 // for each method. This means that the check below is overly | |
| 1379 // conservative in the sense that an osr compilation in the queue | |
| 1380 // will block a normal compilation from entering the queue (and vice | |
| 1381 // versa). This can be remedied by a full queue search to disambiguate | |
| 1382 // cases. If it is deemed profitible, this may be done. | |
| 1383 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
| 1783 | 1384 int osr_bci) { |
| 0 | 1385 return method->queued_for_compilation(); |
| 1386 } | |
| 1387 | |
| 1388 // ------------------------------------------------------------------ | |
| 1389 // CompileBroker::compilation_is_prohibited | |
| 1390 // | |
| 1391 // See if this compilation is not allowed. | |
| 1392 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
| 1393 bool is_native = method->is_native(); | |
| 1394 // Some compilers may not support the compilation of natives. | |
| 1395 if (is_native && | |
| 1396 (!CICompileNatives || !compiler(comp_level)->supports_native())) { | |
| 1783 | 1397 method->set_not_compilable_quietly(comp_level); |
| 0 | 1398 return true; |
| 1399 } | |
| 1400 | |
| 1401 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1402 // Some compilers may not support on stack replacement. | |
| 1403 if (is_osr && | |
| 1404 (!CICompileOSR || !compiler(comp_level)->supports_osr())) { | |
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1405 method->set_not_osr_compilable(comp_level); |
| 0 | 1406 return true; |
| 1407 } | |
| 1408 | |
| 1409 // The method may be explicitly excluded by the user. | |
| 1410 bool quietly; | |
| 1411 if (CompilerOracle::should_exclude(method, quietly)) { | |
| 1412 if (!quietly) { | |
| 1413 // This does not happen quietly... | |
| 1414 ResourceMark rm; | |
| 1415 tty->print("### Excluding %s:%s", | |
| 1416 method->is_native() ? "generation of native wrapper" : "compile", | |
| 1417 (method->is_static() ? " static" : "")); | |
| 1418 method->print_short_name(tty); | |
| 1419 tty->cr(); | |
| 1420 } | |
| 7998 | 1421 method->set_not_compilable(CompLevel_all, !quietly, "excluded by CompilerOracle"); |
| 0 | 1422 } |
| 1423 | |
| 1424 return false; | |
| 1425 } | |
| 1426 | |
| 1427 | |
| 1428 // ------------------------------------------------------------------ | |
| 1429 // CompileBroker::assign_compile_id | |
| 1430 // | |
| 1431 // Assign a serialized id number to this compilation request. If the | |
| 1432 // number falls out of the allowed range, return a 0. OSR | |
| 1433 // compilations may be numbered separately from regular compilations | |
| 1434 // if certain debugging flags are used. | |
| 1435 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
| 1783 | 1436 assert(MethodCompileQueue_lock->owner() == Thread::current(), |
| 0 | 1437 "must hold the compilation queue lock"); |
| 1438 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1439 uint id; | |
| 1440 if (CICountOSR && is_osr) { | |
| 1441 id = ++_osr_compilation_id; | |
| 1442 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
| 1443 return id; | |
| 1444 } | |
| 1445 } else { | |
| 1446 id = ++_compilation_id; | |
| 1447 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
| 1448 return id; | |
| 1449 } | |
| 1450 } | |
| 1451 | |
| 1452 // Method was not in the appropriate compilation range. | |
|
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|
1453 method->set_not_compilable_quietly(); |
| 0 | 1454 return 0; |
| 1455 } | |
| 1456 | |
| 1457 | |
| 1458 // ------------------------------------------------------------------ | |
| 1459 // CompileBroker::is_compile_blocking | |
| 1460 // | |
| 1461 // Should the current thread be blocked until this compilation request | |
| 1462 // has been fulfilled? | |
| 1463 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
|
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1464 assert(!InstanceRefKlass::owns_pending_list_lock(JavaThread::current()), "possible deadlock"); |
|
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1465 return !BackgroundCompilation; |
| 0 | 1466 } |
| 1467 | |
| 1468 | |
| 1469 // ------------------------------------------------------------------ | |
| 1470 // CompileBroker::preload_classes | |
| 1471 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
| 1472 // Move this code over from c1_Compiler.cpp | |
| 1473 ShouldNotReachHere(); | |
| 1474 } | |
| 1475 | |
| 1476 | |
| 1477 // ------------------------------------------------------------------ | |
| 1478 // CompileBroker::create_compile_task | |
| 1479 // | |
| 1480 // Create a CompileTask object representing the current request for | |
| 1481 // compilation. Add this task to the queue. | |
| 1482 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
| 1483 int compile_id, | |
| 1484 methodHandle method, | |
| 1485 int osr_bci, | |
| 1486 int comp_level, | |
| 1487 methodHandle hot_method, | |
| 1488 int hot_count, | |
| 1489 const char* comment, | |
| 1490 bool blocking) { | |
| 1491 CompileTask* new_task = allocate_task(); | |
| 1492 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
| 1493 hot_method, hot_count, comment, | |
| 1494 blocking); | |
| 1495 queue->add(new_task); | |
| 1496 return new_task; | |
| 1497 } | |
| 1498 | |
| 1499 | |
| 1500 // ------------------------------------------------------------------ | |
| 1501 // CompileBroker::allocate_task | |
| 1502 // | |
| 1503 // Allocate a CompileTask, from the free list if possible. | |
| 1504 CompileTask* CompileBroker::allocate_task() { | |
| 1505 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1506 CompileTask* task = NULL; | |
| 1507 if (_task_free_list != NULL) { | |
| 1508 task = _task_free_list; | |
| 1509 _task_free_list = task->next(); | |
| 1510 task->set_next(NULL); | |
| 1511 } else { | |
| 1512 task = new CompileTask(); | |
| 1513 task->set_next(NULL); | |
| 1514 } | |
| 1515 return task; | |
| 1516 } | |
| 1517 | |
| 1518 | |
| 1519 // ------------------------------------------------------------------ | |
| 1520 // CompileBroker::free_task | |
| 1521 // | |
| 1522 // Add a task to the free list. | |
| 1523 void CompileBroker::free_task(CompileTask* task) { | |
| 1524 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1525 task->free(); | |
| 1526 task->set_next(_task_free_list); | |
| 1527 _task_free_list = task; | |
| 1528 } | |
| 1529 | |
| 1530 | |
| 1531 // ------------------------------------------------------------------ | |
| 1532 // CompileBroker::wait_for_completion | |
| 1533 // | |
| 1534 // Wait for the given method CompileTask to complete. | |
| 1535 void CompileBroker::wait_for_completion(CompileTask* task) { | |
| 1536 if (CIPrintCompileQueue) { | |
| 1537 tty->print_cr("BLOCKING FOR COMPILE"); | |
| 1538 } | |
| 1539 | |
| 1540 assert(task->is_blocking(), "can only wait on blocking task"); | |
| 1541 | |
| 1542 JavaThread *thread = JavaThread::current(); | |
| 1543 thread->set_blocked_on_compilation(true); | |
| 1544 | |
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1545 methodHandle method(thread, task->method()); |
| 0 | 1546 { |
| 1547 MutexLocker waiter(task->lock(), thread); | |
| 1548 | |
| 1549 while (!task->is_complete()) | |
| 1550 task->lock()->wait(); | |
| 1551 } | |
| 1552 // It is harmless to check this status without the lock, because | |
| 1553 // completion is a stable property (until the task object is recycled). | |
| 1554 assert(task->is_complete(), "Compilation should have completed"); | |
| 1555 assert(task->code_handle() == NULL, "must be reset"); | |
| 1556 | |
| 1557 thread->set_blocked_on_compilation(false); | |
| 1558 | |
| 1559 // By convention, the waiter is responsible for recycling a | |
| 1560 // blocking CompileTask. Since there is only one waiter ever | |
| 1561 // waiting on a CompileTask, we know that no one else will | |
| 1562 // be using this CompileTask; we can free it. | |
| 1563 free_task(task); | |
| 1564 } | |
| 1565 | |
| 1566 // ------------------------------------------------------------------ | |
| 1567 // CompileBroker::compiler_thread_loop | |
| 1568 // | |
| 1569 // The main loop run by a CompilerThread. | |
| 1570 void CompileBroker::compiler_thread_loop() { | |
| 1571 CompilerThread* thread = CompilerThread::current(); | |
| 1572 CompileQueue* queue = thread->queue(); | |
| 1573 | |
| 1574 // For the thread that initializes the ciObjectFactory | |
| 1575 // this resource mark holds all the shared objects | |
| 1576 ResourceMark rm; | |
| 1577 | |
| 1578 // First thread to get here will initialize the compiler interface | |
| 1579 | |
| 1580 if (!ciObjectFactory::is_initialized()) { | |
| 1581 ASSERT_IN_VM; | |
| 1582 MutexLocker only_one (CompileThread_lock, thread); | |
| 1583 if (!ciObjectFactory::is_initialized()) { | |
| 1584 ciObjectFactory::initialize(); | |
| 1585 } | |
| 1586 } | |
| 1587 | |
| 1588 // Open a log. | |
| 1589 if (LogCompilation) { | |
| 1590 init_compiler_thread_log(); | |
| 1591 } | |
| 1592 CompileLog* log = thread->log(); | |
| 1593 if (log != NULL) { | |
| 6843 | 1594 log->begin_elem("start_compile_thread name='%s' thread='" UINTX_FORMAT "' process='%d'", |
| 1595 thread->name(), | |
| 0 | 1596 os::current_thread_id(), |
| 1597 os::current_process_id()); | |
| 1598 log->stamp(); | |
| 1599 log->end_elem(); | |
| 1600 } | |
| 1601 | |
| 1602 while (true) { | |
| 1603 { | |
| 1604 // We need this HandleMark to avoid leaking VM handles. | |
| 1605 HandleMark hm(thread); | |
| 1202 | 1606 |
|
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1607 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) { |
| 1202 | 1608 // the code cache is really full |
| 1609 handle_full_code_cache(); | |
| 1610 } else if (UseCodeCacheFlushing && CodeCache::needs_flushing()) { | |
| 1611 // Attempt to start cleaning the code cache while there is still a little headroom | |
| 1612 NMethodSweeper::handle_full_code_cache(false); | |
| 0 | 1613 } |
| 1614 | |
| 1615 CompileTask* task = queue->get(); | |
| 1616 | |
| 1617 // Give compiler threads an extra quanta. They tend to be bursty and | |
| 1618 // this helps the compiler to finish up the job. | |
| 1619 if( CompilerThreadHintNoPreempt ) | |
| 1620 os::hint_no_preempt(); | |
| 1621 | |
| 1622 // trace per thread time and compile statistics | |
| 1623 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); | |
| 1624 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); | |
| 1625 | |
| 1626 // Assign the task to the current thread. Mark this compilation | |
| 1627 // thread as active for the profiler. | |
| 1628 CompileTaskWrapper ctw(task); | |
| 1629 nmethodLocker result_handle; // (handle for the nmethod produced by this task) | |
| 1630 task->set_code_handle(&result_handle); | |
|
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1631 methodHandle method(thread, task->method()); |
| 0 | 1632 |
| 1633 // Never compile a method if breakpoints are present in it | |
| 1634 if (method()->number_of_breakpoints() == 0) { | |
| 1635 // Compile the method. | |
| 1202 | 1636 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
| 0 | 1637 #ifdef COMPILER1 |
| 1638 // Allow repeating compilations for the purpose of benchmarking | |
| 1639 // compile speed. This is not useful for customers. | |
| 1640 if (CompilationRepeat != 0) { | |
| 1641 int compile_count = CompilationRepeat; | |
| 1642 while (compile_count > 0) { | |
| 1643 invoke_compiler_on_method(task); | |
| 1644 nmethod* nm = method->code(); | |
| 1645 if (nm != NULL) { | |
| 1646 nm->make_zombie(); | |
| 1647 method->clear_code(); | |
| 1648 } | |
| 1649 compile_count--; | |
| 1650 } | |
| 1651 } | |
| 1652 #endif /* COMPILER1 */ | |
| 1653 invoke_compiler_on_method(task); | |
| 1654 } else { | |
| 1655 // After compilation is disabled, remove remaining methods from queue | |
| 1656 method->clear_queued_for_compilation(); | |
| 1657 } | |
| 1658 } | |
| 1659 } | |
| 1660 } | |
| 1661 } | |
| 1662 | |
| 1663 | |
| 1664 // ------------------------------------------------------------------ | |
| 1665 // CompileBroker::init_compiler_thread_log | |
| 1666 // | |
| 1667 // Set up state required by +LogCompilation. | |
| 1668 void CompileBroker::init_compiler_thread_log() { | |
| 1669 CompilerThread* thread = CompilerThread::current(); | |
| 1670 char fileBuf[4*K]; | |
| 1671 FILE* fp = NULL; | |
| 1672 char* file = NULL; | |
| 1673 intx thread_id = os::current_thread_id(); | |
| 1674 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
| 1675 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
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1676 if (dir == NULL) { |
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1677 jio_snprintf(fileBuf, sizeof(fileBuf), "hs_c" UINTX_FORMAT "_pid%u.log", |
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1678 thread_id, os::current_process_id()); |
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1679 } else { |
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1680 jio_snprintf(fileBuf, sizeof(fileBuf), |
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1681 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
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1682 os::file_separator(), thread_id, os::current_process_id()); |
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|
1683 } |
| 0 | 1684 fp = fopen(fileBuf, "at"); |
| 1685 if (fp != NULL) { | |
| 6197 | 1686 file = NEW_C_HEAP_ARRAY(char, strlen(fileBuf)+1, mtCompiler); |
| 0 | 1687 strcpy(file, fileBuf); |
| 1688 break; | |
| 1689 } | |
| 1690 } | |
| 1691 if (fp == NULL) { | |
| 1692 warning("Cannot open log file: %s", fileBuf); | |
| 1693 } else { | |
| 1694 if (LogCompilation && Verbose) | |
| 1695 tty->print_cr("Opening compilation log %s", file); | |
| 6197 | 1696 CompileLog* log = new(ResourceObj::C_HEAP, mtCompiler) CompileLog(file, fp, thread_id); |
| 0 | 1697 thread->init_log(log); |
| 1698 | |
| 1699 if (xtty != NULL) { | |
| 1700 ttyLocker ttyl; | |
| 1701 | |
| 1702 // Record any per thread log files | |
| 1703 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file); | |
| 1704 } | |
| 1705 } | |
| 1706 } | |
| 1707 | |
| 1708 // ------------------------------------------------------------------ | |
| 1709 // CompileBroker::set_should_block | |
| 1710 // | |
| 1711 // Set _should_block. | |
| 1712 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
| 1713 void CompileBroker::set_should_block() { | |
| 1714 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
| 1715 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
| 1716 #ifndef PRODUCT | |
| 1717 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1718 tty->print_cr("notifying compiler thread pool to block"); | |
| 1719 #endif | |
| 1720 _should_block = true; | |
| 1721 } | |
| 1722 | |
| 1723 // ------------------------------------------------------------------ | |
| 1724 // CompileBroker::maybe_block | |
| 1725 // | |
| 1726 // Call this from the compiler at convenient points, to poll for _should_block. | |
| 1727 void CompileBroker::maybe_block() { | |
| 1728 if (_should_block) { | |
| 1729 #ifndef PRODUCT | |
| 1730 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1731 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
| 1732 #endif | |
| 1733 ThreadInVMfromNative tivfn(JavaThread::current()); | |
| 1734 } | |
| 1735 } | |
| 1736 | |
|
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1737 // wrapper for CodeCache::print_summary() |
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1738 static void codecache_print(bool detailed) |
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1739 { |
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1740 ResourceMark rm; |
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1741 stringStream s; |
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1742 // Dump code cache into a buffer before locking the tty, |
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1743 { |
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1744 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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1745 CodeCache::print_summary(&s, detailed); |
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1746 } |
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1747 ttyLocker ttyl; |
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1748 tty->print_cr(s.as_string()); |
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1749 } |
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1750 |
| 0 | 1751 // ------------------------------------------------------------------ |
| 1752 // CompileBroker::invoke_compiler_on_method | |
| 1753 // | |
| 1754 // Compile a method. | |
| 1755 // | |
| 1756 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
| 1757 if (PrintCompilation) { | |
| 1758 ResourceMark rm; | |
| 1759 task->print_line(); | |
| 1760 } | |
| 1761 elapsedTimer time; | |
| 1762 | |
| 1763 CompilerThread* thread = CompilerThread::current(); | |
| 1764 ResourceMark rm(thread); | |
| 1765 | |
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1766 if (LogEvents) { |
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1767 _compilation_log->log_compile(thread, task); |
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1768 } |
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1769 |
| 0 | 1770 // Common flags. |
| 1771 uint compile_id = task->compile_id(); | |
| 1772 int osr_bci = task->osr_bci(); | |
| 1773 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1774 bool should_log = (thread->log() != NULL); | |
| 1775 bool should_break = false; | |
| 1776 { | |
| 1777 // create the handle inside it's own block so it can't | |
| 1778 // accidentally be referenced once the thread transitions to | |
| 1779 // native. The NoHandleMark before the transition should catch | |
| 1780 // any cases where this occurs in the future. | |
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1781 methodHandle method(thread, task->method()); |
| 0 | 1782 should_break = check_break_at(method, compile_id, is_osr); |
| 1783 if (should_log && !CompilerOracle::should_log(method)) { | |
| 1784 should_log = false; | |
| 1785 } | |
| 1786 assert(!method->is_native(), "no longer compile natives"); | |
| 1787 | |
| 1788 // Save information about this method in case of failure. | |
| 1789 set_last_compile(thread, method, is_osr, task->comp_level()); | |
| 1790 | |
| 1791 DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task->comp_level()), method); | |
| 1792 } | |
| 1793 | |
| 1794 // Allocate a new set of JNI handles. | |
| 1795 push_jni_handle_block(); | |
|
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1796 Method* target_handle = task->method(); |
| 0 | 1797 int compilable = ciEnv::MethodCompilable; |
| 1798 { | |
| 1799 int system_dictionary_modification_counter; | |
| 1800 { | |
| 1801 MutexLocker locker(Compile_lock, thread); | |
| 1802 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
| 1803 } | |
| 1804 | |
| 1805 NoHandleMark nhm; | |
| 1806 ThreadToNativeFromVM ttn(thread); | |
| 1807 | |
| 1808 ciEnv ci_env(task, system_dictionary_modification_counter); | |
| 1809 if (should_break) { | |
| 1810 ci_env.set_break_at_compile(true); | |
| 1811 } | |
| 1812 if (should_log) { | |
| 1813 ci_env.set_log(thread->log()); | |
| 1814 } | |
| 1815 assert(thread->env() == &ci_env, "set by ci_env"); | |
| 1816 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
| 1817 | |
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1818 // Cache Jvmti state |
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1819 ci_env.cache_jvmti_state(); |
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1820 |
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1821 // Cache DTrace flags |
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1822 ci_env.cache_dtrace_flags(); |
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1823 |
| 0 | 1824 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
| 1825 | |
| 1826 TraceTime t1("compilation", &time); | |
| 1827 | |
| 1828 compiler(task->comp_level())->compile_method(&ci_env, target, osr_bci); | |
| 1829 | |
| 1830 if (!ci_env.failing() && task->code() == NULL) { | |
| 1831 //assert(false, "compiler should always document failure"); | |
| 1832 // The compiler elected, without comment, not to register a result. | |
| 1833 // Do not attempt further compilations of this method. | |
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1834 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
| 0 | 1835 } |
| 1836 | |
|
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1837 // Copy this bit to the enclosing block: |
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1838 compilable = ci_env.compilable(); |
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1839 |
| 0 | 1840 if (ci_env.failing()) { |
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1841 const char* retry_message = ci_env.retry_message(); |
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1842 if (_compilation_log != NULL) { |
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1843 _compilation_log->log_failure(thread, task, ci_env.failure_reason(), retry_message); |
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1844 } |
| 0 | 1845 if (PrintCompilation) { |
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1846 FormatBufferResource msg = retry_message != NULL ? |
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1847 err_msg_res("COMPILE SKIPPED: %s (%s)", ci_env.failure_reason(), retry_message) : |
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1848 err_msg_res("COMPILE SKIPPED: %s", ci_env.failure_reason()); |
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1849 task->print_compilation(tty, msg); |
| 0 | 1850 } |
| 1851 } else { | |
| 1852 task->mark_success(); | |
| 1853 task->set_num_inlined_bytecodes(ci_env.num_inlined_bytecodes()); | |
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1854 if (_compilation_log != NULL) { |
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1855 nmethod* code = task->code(); |
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1856 if (code != NULL) { |
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1857 _compilation_log->log_nmethod(thread, code); |
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1858 } |
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1859 } |
| 0 | 1860 } |
| 1861 } | |
| 1862 pop_jni_handle_block(); | |
| 1863 | |
|
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1864 methodHandle method(thread, task->method()); |
| 0 | 1865 |
| 1866 DTRACE_METHOD_COMPILE_END_PROBE(compiler(task->comp_level()), method, task->is_success()); | |
| 1867 | |
| 1868 collect_statistics(thread, time, task); | |
| 1869 | |
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1870 if (PrintCompilation && PrintCompilation2) { |
| 4047 | 1871 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); // print timestamp |
| 1872 tty->print("%4d ", compile_id); // print compilation number | |
| 1873 tty->print("%s ", (is_osr ? "%" : " ")); | |
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1874 int code_size = (task->code() == NULL) ? 0 : task->code()->total_size(); |
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1875 tty->print_cr("size: %d time: %d inlined: %d bytes", code_size, (int)time.milliseconds(), task->num_inlined_bytecodes()); |
| 4047 | 1876 } |
| 1877 | |
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1878 if (PrintCodeCacheOnCompilation) |
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1879 codecache_print(/* detailed= */ false); |
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1880 |
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1881 // Disable compilation, if required. |
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1882 switch (compilable) { |
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1883 case ciEnv::MethodCompilable_never: |
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1884 if (is_osr) |
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1885 method->set_not_osr_compilable_quietly(); |
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1886 else |
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1887 method->set_not_compilable_quietly(); |
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1888 break; |
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1889 case ciEnv::MethodCompilable_not_at_tier: |
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1890 if (is_osr) |
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1891 method->set_not_osr_compilable_quietly(task->comp_level()); |
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1892 else |
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1893 method->set_not_compilable_quietly(task->comp_level()); |
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1894 break; |
| 0 | 1895 } |
| 1896 | |
| 1897 // Note that the queued_for_compilation bits are cleared without | |
| 1898 // protection of a mutex. [They were set by the requester thread, | |
| 1899 // when adding the task to the complie queue -- at which time the | |
| 1900 // compile queue lock was held. Subsequently, we acquired the compile | |
| 1901 // queue lock to get this task off the compile queue; thus (to belabour | |
| 1902 // the point somewhat) our clearing of the bits must be occurring | |
| 1903 // only after the setting of the bits. See also 14012000 above. | |
| 1904 method->clear_queued_for_compilation(); | |
| 1905 | |
| 1906 #ifdef ASSERT | |
| 1907 if (CollectedHeap::fired_fake_oom()) { | |
| 1908 // The current compile received a fake OOM during compilation so | |
| 1909 // go ahead and exit the VM since the test apparently succeeded | |
| 1910 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
| 1911 vm_exit(0); | |
| 1912 } | |
| 1913 #endif | |
| 1914 } | |
| 1915 | |
| 1916 // ------------------------------------------------------------------ | |
| 1202 | 1917 // CompileBroker::handle_full_code_cache |
| 1918 // | |
| 1919 // The CodeCache is full. Print out warning and disable compilation or | |
| 1920 // try code cache cleaning so compilation can continue later. | |
| 1921 void CompileBroker::handle_full_code_cache() { | |
| 1922 UseInterpreter = true; | |
| 1923 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
|
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1924 if (xtty != NULL) { |
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1925 ResourceMark rm; |
|
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1926 stringStream s; |
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1927 // Dump code cache state into a buffer before locking the tty, |
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1928 // because log_state() will use locks causing lock conflicts. |
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1929 CodeCache::log_state(&s); |
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1930 // Lock to prevent tearing |
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1931 ttyLocker ttyl; |
|
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1932 xtty->begin_elem("code_cache_full"); |
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1933 xtty->print(s.as_string()); |
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1934 xtty->stamp(); |
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1935 xtty->end_elem(); |
| 1202 | 1936 } |
|
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1937 warning("CodeCache is full. Compiler has been disabled."); |
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1938 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
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1939 #ifndef PRODUCT |
| 1202 | 1940 if (CompileTheWorld || ExitOnFullCodeCache) { |
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1941 codecache_print(/* detailed= */ true); |
| 1202 | 1942 before_exit(JavaThread::current()); |
| 1943 exit_globals(); // will delete tty | |
| 1944 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
| 1945 } | |
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1946 #endif |
| 1202 | 1947 if (UseCodeCacheFlushing) { |
| 1948 NMethodSweeper::handle_full_code_cache(true); | |
| 1949 } else { | |
| 1950 UseCompiler = false; | |
| 1951 AlwaysCompileLoopMethods = false; | |
| 1952 } | |
| 1953 } | |
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1954 codecache_print(/* detailed= */ true); |
| 1202 | 1955 } |
| 1956 | |
| 1957 // ------------------------------------------------------------------ | |
| 0 | 1958 // CompileBroker::set_last_compile |
| 1959 // | |
| 1960 // Record this compilation for debugging purposes. | |
| 1961 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
| 1962 ResourceMark rm; | |
| 1963 char* method_name = method->name()->as_C_string(); | |
| 1964 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
| 1965 char current_method[CompilerCounters::cmname_buffer_length]; | |
| 1966 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
| 1967 | |
| 1968 if (UsePerfData) { | |
|
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1969 const char* class_name = method->method_holder()->name()->as_C_string(); |
| 0 | 1970 |
| 1971 size_t s1len = strlen(class_name); | |
| 1972 size_t s2len = strlen(method_name); | |
| 1973 | |
| 1974 // check if we need to truncate the string | |
| 1975 if (s1len + s2len + 2 > maxLen) { | |
| 1976 | |
| 1977 // the strategy is to lop off the leading characters of the | |
| 1978 // class name and the trailing characters of the method name. | |
| 1979 | |
| 1980 if (s2len + 2 > maxLen) { | |
| 1981 // lop of the entire class name string, let snprintf handle | |
| 1982 // truncation of the method name. | |
| 1983 class_name += s1len; // null string | |
| 1984 } | |
| 1985 else { | |
| 1986 // lop off the extra characters from the front of the class name | |
| 1987 class_name += ((s1len + s2len + 2) - maxLen); | |
| 1988 } | |
| 1989 } | |
| 1990 | |
| 1991 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
| 1992 } | |
| 1993 | |
| 1994 if (CICountOSR && is_osr) { | |
| 1995 _last_compile_type = osr_compile; | |
| 1996 } else { | |
| 1997 _last_compile_type = normal_compile; | |
| 1998 } | |
| 1999 _last_compile_level = comp_level; | |
| 2000 | |
| 2001 if (UsePerfData) { | |
| 2002 CompilerCounters* counters = thread->counters(); | |
| 2003 counters->set_current_method(current_method); | |
| 2004 counters->set_compile_type((jlong)_last_compile_type); | |
| 2005 } | |
| 2006 } | |
| 2007 | |
| 2008 | |
| 2009 // ------------------------------------------------------------------ | |
| 2010 // CompileBroker::push_jni_handle_block | |
| 2011 // | |
| 2012 // Push on a new block of JNI handles. | |
| 2013 void CompileBroker::push_jni_handle_block() { | |
| 2014 JavaThread* thread = JavaThread::current(); | |
| 2015 | |
| 2016 // Allocate a new block for JNI handles. | |
| 2017 // Inlined code from jni_PushLocalFrame() | |
| 2018 JNIHandleBlock* java_handles = thread->active_handles(); | |
| 2019 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
| 2020 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
| 2021 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
| 2022 thread->set_active_handles(compile_handles); | |
| 2023 } | |
| 2024 | |
| 2025 | |
| 2026 // ------------------------------------------------------------------ | |
| 2027 // CompileBroker::pop_jni_handle_block | |
| 2028 // | |
| 2029 // Pop off the current block of JNI handles. | |
| 2030 void CompileBroker::pop_jni_handle_block() { | |
| 2031 JavaThread* thread = JavaThread::current(); | |
| 2032 | |
| 2033 // Release our JNI handle block | |
| 2034 JNIHandleBlock* compile_handles = thread->active_handles(); | |
| 2035 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
| 2036 thread->set_active_handles(java_handles); | |
| 2037 compile_handles->set_pop_frame_link(NULL); | |
| 2038 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
| 2039 } | |
| 2040 | |
| 2041 | |
| 2042 // ------------------------------------------------------------------ | |
| 2043 // CompileBroker::check_break_at | |
| 2044 // | |
| 2045 // Should the compilation break at the current compilation. | |
| 2046 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
| 2047 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
| 2048 return true; | |
| 2049 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
| 2050 return true; | |
| 2051 } else { | |
| 2052 return (compile_id == CIBreakAt); | |
| 2053 } | |
| 2054 } | |
| 2055 | |
| 2056 // ------------------------------------------------------------------ | |
| 2057 // CompileBroker::collect_statistics | |
| 2058 // | |
| 2059 // Collect statistics about the compilation. | |
| 2060 | |
| 2061 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
| 2062 bool success = task->is_success(); | |
|
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2063 methodHandle method (thread, task->method()); |
| 0 | 2064 uint compile_id = task->compile_id(); |
| 2065 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
| 2066 nmethod* code = task->code(); | |
| 2067 CompilerCounters* counters = thread->counters(); | |
| 2068 | |
| 2069 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
| 2070 MutexLocker locker(CompileStatistics_lock); | |
| 2071 | |
| 2072 // _perf variables are production performance counters which are | |
| 2073 // updated regardless of the setting of the CITime and CITimeEach flags | |
| 2074 // | |
| 2075 if (!success) { | |
| 2076 _total_bailout_count++; | |
| 2077 if (UsePerfData) { | |
| 2078 _perf_last_failed_method->set_value(counters->current_method()); | |
| 2079 _perf_last_failed_type->set_value(counters->compile_type()); | |
| 2080 _perf_total_bailout_count->inc(); | |
| 2081 } | |
| 2082 } else if (code == NULL) { | |
| 2083 if (UsePerfData) { | |
| 2084 _perf_last_invalidated_method->set_value(counters->current_method()); | |
| 2085 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
| 2086 _perf_total_invalidated_count->inc(); | |
| 2087 } | |
| 2088 _total_invalidated_count++; | |
| 2089 } else { | |
| 2090 // Compilation succeeded | |
| 2091 | |
| 2092 // update compilation ticks - used by the implementation of | |
| 2093 // java.lang.management.CompilationMBean | |
| 2094 _perf_total_compilation->inc(time.ticks()); | |
| 2095 | |
| 2096 if (CITime) { | |
| 2097 _t_total_compilation.add(time); | |
| 2098 if (is_osr) { | |
| 2099 _t_osr_compilation.add(time); | |
| 2100 _sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
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2101 #ifdef GRAAL |
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2102 compiler(task->comp_level())->stats()->_t_osr_compilation.add(time); |
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2103 compiler(task->comp_level())->stats()->_sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); |
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2104 #endif |
| 0 | 2105 } else { |
| 2106 _t_standard_compilation.add(time); | |
| 2107 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
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2108 #ifdef GRAAL |
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2109 compiler(task->comp_level())->stats()->_t_standard_compilation.add(time); |
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2110 compiler(task->comp_level())->stats()->_sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); |
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2111 #endif |
| 0 | 2112 } |
| 2113 } | |
| 2114 | |
| 2115 if (UsePerfData) { | |
| 2116 // save the name of the last method compiled | |
| 2117 _perf_last_method->set_value(counters->current_method()); | |
| 2118 _perf_last_compile_type->set_value(counters->compile_type()); | |
| 2119 _perf_last_compile_size->set_value(method->code_size() + | |
| 2120 task->num_inlined_bytecodes()); | |
| 2121 if (is_osr) { | |
| 2122 _perf_osr_compilation->inc(time.ticks()); | |
| 2123 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2124 } else { | |
| 2125 _perf_standard_compilation->inc(time.ticks()); | |
| 2126 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2127 } | |
| 2128 } | |
| 2129 | |
| 2130 if (CITimeEach) { | |
| 2131 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
| 2132 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
| 2133 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
| 2134 } | |
| 2135 | |
| 2136 // Collect counts of successful compilations | |
| 1748 | 2137 _sum_nmethod_size += code->total_size(); |
| 2138 _sum_nmethod_code_size += code->insts_size(); | |
| 0 | 2139 _total_compile_count++; |
| 2140 | |
| 2141 if (UsePerfData) { | |
| 1748 | 2142 _perf_sum_nmethod_size->inc( code->total_size()); |
| 2143 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
| 0 | 2144 _perf_total_compile_count->inc(); |
| 2145 } | |
| 2146 | |
| 2147 if (is_osr) { | |
| 2148 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
| 2149 _total_osr_compile_count++; | |
| 2150 } else { | |
| 2151 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
| 2152 _total_standard_compile_count++; | |
| 2153 } | |
| 2154 } | |
| 2155 // set the current method for the thread to null | |
| 2156 if (UsePerfData) counters->set_current_method(""); | |
| 2157 } | |
| 2158 | |
| 2159 | |
| 2160 | |
| 2161 void CompileBroker::print_times() { | |
| 2162 tty->cr(); | |
| 2163 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
| 2164 tty->print_cr("------------------------------------------------"); | |
| 2165 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
| 2166 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
| 2167 tty->print_cr(" Total compilation time : %6.3f s", CompileBroker::_t_total_compilation.seconds()); | |
| 2168 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", | |
| 2169 CompileBroker::_t_standard_compilation.seconds(), | |
| 2170 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count); | |
| 2171 tty->print_cr(" On stack replacement : %6.3f s, Average : %2.3f", CompileBroker::_t_osr_compilation.seconds(), CompileBroker::_t_osr_compilation.seconds() / CompileBroker::_total_osr_compile_count); | |
| 1131 | 2172 |
| 1783 | 2173 if (compiler(CompLevel_simple) != NULL) { |
| 2174 compiler(CompLevel_simple)->print_timers(); | |
| 0 | 2175 } |
| 1783 | 2176 if (compiler(CompLevel_full_optimization) != NULL) { |
| 2177 compiler(CompLevel_full_optimization)->print_timers(); | |
| 2178 } | |
| 0 | 2179 tty->cr(); |
| 2180 int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled; | |
| 2181 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); | |
| 2182 tty->print_cr(" Standard compilation : %6d bytes", CompileBroker::_sum_standard_bytes_compiled); | |
| 2183 tty->print_cr(" On stack replacement : %6d bytes", CompileBroker::_sum_osr_bytes_compiled); | |
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2184 double tcs = CompileBroker::_t_total_compilation.seconds(); |
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2185 int bps = tcs == 0.0 ? 0 : (int)(tcb / tcs); |
| 0 | 2186 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); |
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2187 #ifdef GRAAL |
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2188 for (unsigned int i = 0; i < sizeof(_compilers) / sizeof(AbstractCompiler*); i++) { |
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2189 AbstractCompiler* comp = _compilers[i]; |
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2190 if (comp != NULL) { |
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2191 CompilerStatistics* stats = comp->stats(); |
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2192 int bytecodes = stats->_sum_osr_bytes_compiled + stats->_sum_standard_bytes_compiled; |
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2193 if (bytecodes != 0) { |
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2194 double seconds = stats->_t_osr_compilation.seconds() + stats->_t_standard_compilation.seconds(); |
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2195 int bps = seconds == 0.0 ? 0 : (int) (bytecodes / seconds); |
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2196 tty->print_cr(" %7s compilation speed: %6d bytes/s {standard: %6.3f s, %6d bytes; osr: %6.3f s, %6d bytes}", |
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2197 comp->name(), bps, stats->_t_standard_compilation.seconds(), stats->_sum_standard_bytes_compiled, |
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2198 stats->_t_osr_compilation.seconds(), stats->_sum_osr_bytes_compiled); |
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2199 } |
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2200 } |
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2201 } |
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2202 #endif |
| 0 | 2203 tty->cr(); |
| 2204 tty->print_cr(" nmethod code size : %6d bytes", CompileBroker::_sum_nmethod_code_size); | |
| 2205 tty->print_cr(" nmethod total size : %6d bytes", CompileBroker::_sum_nmethod_size); | |
| 2206 } | |
| 2207 | |
| 2208 | |
| 2209 // Debugging output for failure | |
| 2210 void CompileBroker::print_last_compile() { | |
| 2211 if ( _last_compile_level != CompLevel_none && | |
| 2212 compiler(_last_compile_level) != NULL && | |
| 2213 _last_method_compiled != NULL && | |
| 2214 _last_compile_type != no_compile) { | |
| 2215 if (_last_compile_type == osr_compile) { | |
| 2216 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
| 2217 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
| 2218 } else { | |
| 2219 tty->print_cr("Last parse: %d+++(%d) %s", | |
| 2220 _compilation_id, _last_compile_level, _last_method_compiled); | |
| 2221 } | |
| 2222 } | |
| 2223 } | |
| 2224 | |
| 2225 | |
| 2226 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
| 2227 #ifndef PRODUCT | |
| 2228 st->print_cr("Compiler thread printing unimplemented."); | |
| 2229 st->cr(); | |
| 2230 #endif | |
| 2231 } |