Mercurial > hg > graal-compiler
annotate src/share/vm/compiler/compileBroker.cpp @ 2044:06f017f7daa7
Merge.
| author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
|---|---|
| date | Fri, 07 Jan 2011 18:18:08 +0100 |
| parents | b7fb5f1e0747 f95d63e2154a |
| children | 9c96c873c42b |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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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" | |
| 34 #include "oops/methodDataOop.hpp" | |
| 35 #include "oops/methodOop.hpp" | |
| 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" | |
| 47 #ifdef COMPILER1 | |
| 48 #include "c1/c1_Compiler.hpp" | |
| 49 #endif | |
| 50 #ifdef COMPILER2 | |
| 51 #include "opto/c2compiler.hpp" | |
| 52 #endif | |
| 53 #ifdef SHARK | |
| 54 #include "shark/sharkCompiler.hpp" | |
| 55 #endif | |
| 0 | 56 |
| 57 #ifdef DTRACE_ENABLED | |
| 58 | |
| 59 // Only bother with this argument setup if dtrace is available | |
| 60 | |
| 61 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, | |
| 62 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
| 63 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
| 64 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
| 65 | |
| 66 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 67 { \ | |
| 68 char* comp_name = (char*)(compiler)->name(); \ | |
| 69 symbolOop klass_name = (method)->klass_name(); \ | |
| 70 symbolOop name = (method)->name(); \ | |
| 71 symbolOop signature = (method)->signature(); \ | |
| 72 HS_DTRACE_PROBE8(hotspot, method__compile__begin, \ | |
| 73 comp_name, strlen(comp_name), \ | |
| 74 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 75 name->bytes(), name->utf8_length(), \ | |
| 76 signature->bytes(), signature->utf8_length()); \ | |
| 77 } | |
| 78 | |
| 79 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 80 { \ | |
| 81 char* comp_name = (char*)(compiler)->name(); \ | |
| 82 symbolOop klass_name = (method)->klass_name(); \ | |
| 83 symbolOop name = (method)->name(); \ | |
| 84 symbolOop signature = (method)->signature(); \ | |
| 85 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ | |
| 86 comp_name, strlen(comp_name), \ | |
| 87 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 88 name->bytes(), name->utf8_length(), \ | |
| 89 signature->bytes(), signature->utf8_length(), (success)); \ | |
| 90 } | |
| 91 | |
| 92 #else // ndef DTRACE_ENABLED | |
| 93 | |
| 94 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) | |
| 95 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) | |
| 96 | |
| 97 #endif // ndef DTRACE_ENABLED | |
| 98 | |
| 99 bool CompileBroker::_initialized = false; | |
| 100 volatile bool CompileBroker::_should_block = false; | |
| 1202 | 101 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
| 0 | 102 |
| 103 // The installed compiler(s) | |
| 104 AbstractCompiler* CompileBroker::_compilers[2]; | |
| 105 | |
| 106 // These counters are used for assigning id's to each compilation | |
| 107 uint CompileBroker::_compilation_id = 0; | |
| 108 uint CompileBroker::_osr_compilation_id = 0; | |
| 109 | |
| 110 // Debugging information | |
| 111 int CompileBroker::_last_compile_type = no_compile; | |
| 112 int CompileBroker::_last_compile_level = CompLevel_none; | |
| 113 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
| 114 | |
| 115 // Performance counters | |
| 116 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
| 117 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
| 118 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
| 119 | |
| 120 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
| 121 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
| 122 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
| 123 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
| 124 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
| 125 | |
| 126 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
| 127 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
| 128 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
| 129 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
| 130 | |
| 131 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
| 132 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
| 133 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
| 134 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
| 135 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
| 136 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
| 137 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
| 138 | |
| 139 // Timers and counters for generating statistics | |
| 140 elapsedTimer CompileBroker::_t_total_compilation; | |
| 141 elapsedTimer CompileBroker::_t_osr_compilation; | |
| 142 elapsedTimer CompileBroker::_t_standard_compilation; | |
| 143 | |
| 144 int CompileBroker::_total_bailout_count = 0; | |
| 145 int CompileBroker::_total_invalidated_count = 0; | |
| 146 int CompileBroker::_total_compile_count = 0; | |
| 147 int CompileBroker::_total_osr_compile_count = 0; | |
| 148 int CompileBroker::_total_standard_compile_count = 0; | |
| 149 | |
| 150 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
| 151 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
| 152 int CompileBroker::_sum_nmethod_size = 0; | |
| 153 int CompileBroker::_sum_nmethod_code_size = 0; | |
| 154 | |
| 1783 | 155 CompileQueue* CompileBroker::_c2_method_queue = NULL; |
| 156 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
| 0 | 157 CompileTask* CompileBroker::_task_free_list = NULL; |
| 158 | |
| 159 GrowableArray<CompilerThread*>* CompileBroker::_method_threads = NULL; | |
| 160 | |
| 161 | |
| 162 CompileTaskWrapper::CompileTaskWrapper(CompileTask* task) { | |
| 163 CompilerThread* thread = CompilerThread::current(); | |
| 164 thread->set_task(task); | |
| 165 CompileLog* log = thread->log(); | |
| 166 if (log != NULL) task->log_task_start(log); | |
| 167 } | |
| 168 | |
| 169 CompileTaskWrapper::~CompileTaskWrapper() { | |
| 170 CompilerThread* thread = CompilerThread::current(); | |
| 171 CompileTask* task = thread->task(); | |
| 172 CompileLog* log = thread->log(); | |
| 173 if (log != NULL) task->log_task_done(log); | |
| 174 thread->set_task(NULL); | |
| 175 task->set_code_handle(NULL); | |
| 176 DEBUG_ONLY(thread->set_env((ciEnv*)badAddress)); | |
| 177 if (task->is_blocking()) { | |
| 178 MutexLocker notifier(task->lock(), thread); | |
| 179 task->mark_complete(); | |
| 180 // Notify the waiting thread that the compilation has completed. | |
| 181 task->lock()->notify_all(); | |
| 182 } else { | |
| 183 task->mark_complete(); | |
| 184 | |
| 185 // By convention, the compiling thread is responsible for | |
| 186 // recycling a non-blocking CompileTask. | |
| 187 CompileBroker::free_task(task); | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 | |
| 192 // ------------------------------------------------------------------ | |
| 193 // CompileTask::initialize | |
| 194 void CompileTask::initialize(int compile_id, | |
| 195 methodHandle method, | |
| 196 int osr_bci, | |
| 197 int comp_level, | |
| 198 methodHandle hot_method, | |
| 199 int hot_count, | |
| 200 const char* comment, | |
| 201 bool is_blocking) { | |
| 202 assert(!_lock->is_locked(), "bad locking"); | |
| 203 | |
| 204 _compile_id = compile_id; | |
| 205 _method = JNIHandles::make_global(method); | |
| 206 _osr_bci = osr_bci; | |
| 207 _is_blocking = is_blocking; | |
| 208 _comp_level = comp_level; | |
| 209 _num_inlined_bytecodes = 0; | |
| 210 | |
| 211 _is_complete = false; | |
| 212 _is_success = false; | |
| 213 _code_handle = NULL; | |
| 214 | |
| 215 _hot_method = NULL; | |
| 216 _hot_count = hot_count; | |
| 217 _time_queued = 0; // tidy | |
| 218 _comment = comment; | |
| 219 | |
| 220 if (LogCompilation) { | |
| 221 _time_queued = os::elapsed_counter(); | |
| 222 if (hot_method.not_null()) { | |
| 223 if (hot_method == method) { | |
| 224 _hot_method = _method; | |
| 225 } else { | |
| 226 _hot_method = JNIHandles::make_global(hot_method); | |
| 227 } | |
| 228 } | |
| 229 } | |
| 230 | |
| 231 _next = NULL; | |
| 232 } | |
| 233 | |
| 234 // ------------------------------------------------------------------ | |
| 235 // CompileTask::code/set_code | |
| 236 nmethod* CompileTask::code() const { | |
| 237 if (_code_handle == NULL) return NULL; | |
| 238 return _code_handle->code(); | |
| 239 } | |
| 240 void CompileTask::set_code(nmethod* nm) { | |
| 241 if (_code_handle == NULL && nm == NULL) return; | |
| 242 guarantee(_code_handle != NULL, ""); | |
| 243 _code_handle->set_code(nm); | |
| 244 if (nm == NULL) _code_handle = NULL; // drop the handle also | |
| 245 } | |
| 246 | |
| 247 // ------------------------------------------------------------------ | |
| 248 // CompileTask::free | |
| 249 void CompileTask::free() { | |
| 250 set_code(NULL); | |
| 251 assert(!_lock->is_locked(), "Should not be locked when freed"); | |
| 252 if (_hot_method != NULL && _hot_method != _method) { | |
| 253 JNIHandles::destroy_global(_hot_method); | |
| 254 } | |
| 255 JNIHandles::destroy_global(_method); | |
| 256 } | |
| 257 | |
| 258 | |
| 259 // ------------------------------------------------------------------ | |
| 260 // CompileTask::print | |
| 261 void CompileTask::print() { | |
| 262 tty->print("<CompileTask compile_id=%d ", _compile_id); | |
| 263 tty->print("method="); | |
| 264 ((methodOop)JNIHandles::resolve(_method))->print_name(tty); | |
| 265 tty->print_cr(" osr_bci=%d is_blocking=%s is_complete=%s is_success=%s>", | |
| 266 _osr_bci, bool_to_str(_is_blocking), | |
| 267 bool_to_str(_is_complete), bool_to_str(_is_success)); | |
| 268 } | |
| 269 | |
| 1783 | 270 |
| 271 void CompileTask::print_compilation(outputStream *st, methodOop method, char* method_name) { | |
| 272 nmethod::print_compilation(st, method_name,/*title*/ NULL, method, | |
| 273 is_blocking(), compile_id(), osr_bci(), comp_level()); | |
| 274 } | |
| 275 | |
| 0 | 276 // ------------------------------------------------------------------ |
| 277 // CompileTask::print_line_on_error | |
| 278 // | |
| 279 // This function is called by fatal error handler when the thread | |
| 280 // causing troubles is a compiler thread. | |
| 281 // | |
| 282 // Do not grab any lock, do not allocate memory. | |
| 283 // | |
| 284 // Otherwise it's the same as CompileTask::print_line() | |
| 285 // | |
| 286 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) { | |
| 287 methodOop method = (methodOop)JNIHandles::resolve(_method); | |
| 288 // print compiler name | |
| 289 st->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
| 1783 | 290 char* method_name = NULL; |
| 291 if (method != NULL) { | |
| 292 method_name = method->name_and_sig_as_C_string(buf, buflen); | |
| 0 | 293 } |
| 1783 | 294 print_compilation(st, method, method_name); |
| 0 | 295 } |
| 296 | |
| 297 // ------------------------------------------------------------------ | |
| 298 // CompileTask::print_line | |
| 299 void CompileTask::print_line() { | |
| 300 Thread *thread = Thread::current(); | |
| 301 methodHandle method(thread, | |
| 302 (methodOop)JNIHandles::resolve(method_handle())); | |
| 303 ResourceMark rm(thread); | |
| 304 | |
| 305 ttyLocker ttyl; // keep the following output all in one block | |
| 306 | |
| 307 // print compiler name if requested | |
| 308 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
| 1783 | 309 print_compilation(tty, method(), NULL); |
| 0 | 310 } |
| 311 | |
| 312 | |
| 313 // ------------------------------------------------------------------ | |
| 314 // CompileTask::log_task | |
| 315 void CompileTask::log_task(xmlStream* log) { | |
| 316 Thread* thread = Thread::current(); | |
| 317 methodHandle method(thread, | |
| 318 (methodOop)JNIHandles::resolve(method_handle())); | |
| 319 ResourceMark rm(thread); | |
| 320 | |
| 321 // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'> | |
| 322 if (_compile_id != 0) log->print(" compile_id='%d'", _compile_id); | |
| 323 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 324 log->print(" compile_kind='osr'"); // same as nmethod::compile_kind | |
| 325 } // else compile_kind='c2c' | |
| 326 if (!method.is_null()) log->method(method); | |
| 327 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 328 log->print(" osr_bci='%d'", _osr_bci); | |
| 329 } | |
| 330 if (_comp_level != CompLevel_highest_tier) { | |
| 331 log->print(" level='%d'", _comp_level); | |
| 332 } | |
| 333 if (_is_blocking) { | |
| 334 log->print(" blocking='1'"); | |
| 335 } | |
| 336 log->stamp(); | |
| 337 } | |
| 338 | |
| 339 | |
| 340 // ------------------------------------------------------------------ | |
| 341 // CompileTask::log_task_queued | |
| 342 void CompileTask::log_task_queued() { | |
| 343 Thread* thread = Thread::current(); | |
| 344 ttyLocker ttyl; | |
| 345 ResourceMark rm(thread); | |
| 346 | |
| 347 xtty->begin_elem("task_queued"); | |
| 348 log_task(xtty); | |
| 349 if (_comment != NULL) { | |
| 350 xtty->print(" comment='%s'", _comment); | |
| 351 } | |
| 352 if (_hot_method != NULL) { | |
| 353 methodHandle hot(thread, | |
| 354 (methodOop)JNIHandles::resolve(_hot_method)); | |
| 355 methodHandle method(thread, | |
| 356 (methodOop)JNIHandles::resolve(_method)); | |
| 357 if (hot() != method()) { | |
| 358 xtty->method(hot); | |
| 359 } | |
| 360 } | |
| 361 if (_hot_count != 0) { | |
| 362 xtty->print(" hot_count='%d'", _hot_count); | |
| 363 } | |
| 364 xtty->end_elem(); | |
| 365 } | |
| 366 | |
| 367 | |
| 368 // ------------------------------------------------------------------ | |
| 369 // CompileTask::log_task_start | |
| 370 void CompileTask::log_task_start(CompileLog* log) { | |
| 371 log->begin_head("task"); | |
| 372 log_task(log); | |
| 373 log->end_head(); | |
| 374 } | |
| 375 | |
| 376 | |
| 377 // ------------------------------------------------------------------ | |
| 378 // CompileTask::log_task_done | |
| 379 void CompileTask::log_task_done(CompileLog* log) { | |
| 380 Thread* thread = Thread::current(); | |
| 381 methodHandle method(thread, | |
| 382 (methodOop)JNIHandles::resolve(method_handle())); | |
| 383 ResourceMark rm(thread); | |
| 384 | |
| 385 // <task_done ... stamp='1.234'> </task> | |
| 386 nmethod* nm = code(); | |
| 387 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
| 1748 | 388 _is_success, nm == NULL ? 0 : nm->content_size(), |
| 0 | 389 method->invocation_count()); |
| 390 int bec = method->backedge_count(); | |
| 391 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
| 392 // Note: "_is_complete" is about to be set, but is not. | |
| 393 if (_num_inlined_bytecodes != 0) { | |
| 394 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
| 395 } | |
| 396 log->stamp(); | |
| 397 log->end_elem(); | |
| 398 log->tail("task"); | |
| 399 log->clear_identities(); // next task will have different CI | |
| 400 if (log->unflushed_count() > 2000) { | |
| 401 log->flush(); | |
| 402 } | |
| 403 log->mark_file_end(); | |
| 404 } | |
| 405 | |
| 406 | |
| 407 | |
| 408 // ------------------------------------------------------------------ | |
| 409 // CompileQueue::add | |
| 410 // | |
| 411 // Add a CompileTask to a CompileQueue | |
| 412 void CompileQueue::add(CompileTask* task) { | |
| 413 assert(lock()->owned_by_self(), "must own lock"); | |
| 414 | |
| 415 task->set_next(NULL); | |
| 1783 | 416 task->set_prev(NULL); |
| 0 | 417 |
| 418 if (_last == NULL) { | |
| 419 // The compile queue is empty. | |
| 420 assert(_first == NULL, "queue is empty"); | |
| 421 _first = task; | |
| 422 _last = task; | |
| 423 } else { | |
| 424 // Append the task to the queue. | |
| 425 assert(_last->next() == NULL, "not last"); | |
| 426 _last->set_next(task); | |
| 1783 | 427 task->set_prev(_last); |
| 0 | 428 _last = task; |
| 429 } | |
| 1783 | 430 ++_size; |
| 0 | 431 |
| 432 // Mark the method as being in the compile queue. | |
| 433 ((methodOop)JNIHandles::resolve(task->method_handle()))->set_queued_for_compilation(); | |
| 434 | |
| 435 if (CIPrintCompileQueue) { | |
| 436 print(); | |
| 437 } | |
| 438 | |
| 439 if (LogCompilation && xtty != NULL) { | |
| 440 task->log_task_queued(); | |
| 441 } | |
| 442 | |
| 443 // Notify CompilerThreads that a task is available. | |
| 1783 | 444 lock()->notify_all(); |
| 0 | 445 } |
| 446 | |
| 447 // ------------------------------------------------------------------ | |
| 448 // CompileQueue::get | |
| 449 // | |
| 450 // Get the next CompileTask from a CompileQueue | |
| 451 CompileTask* CompileQueue::get() { | |
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452 NMethodSweeper::possibly_sweep(); |
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453 |
| 0 | 454 MutexLocker locker(lock()); |
| 455 // Wait for an available CompileTask. | |
| 456 while (_first == NULL) { | |
| 457 // There is no work to be done right now. Wait. | |
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458 if (UseCodeCacheFlushing && (!CompileBroker::should_compile_new_jobs() || CodeCache::needs_flushing())) { |
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459 // During the emergency sweeping periods, wake up and sweep occasionally |
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460 bool timedout = lock()->wait(!Mutex::_no_safepoint_check_flag, NmethodSweepCheckInterval*1000); |
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461 if (timedout) { |
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462 MutexUnlocker ul(lock()); |
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463 // When otherwise not busy, run nmethod sweeping |
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464 NMethodSweeper::possibly_sweep(); |
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465 } |
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466 } else { |
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467 // During normal operation no need to wake up on timer |
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468 lock()->wait(); |
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469 } |
| 0 | 470 } |
| 1783 | 471 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
| 472 remove(task); | |
| 473 return task; | |
| 474 } | |
| 0 | 475 |
| 1783 | 476 void CompileQueue::remove(CompileTask* task) |
| 477 { | |
| 478 assert(lock()->owned_by_self(), "must own lock"); | |
| 479 if (task->prev() != NULL) { | |
| 480 task->prev()->set_next(task->next()); | |
| 481 } else { | |
| 482 // max is the first element | |
| 483 assert(task == _first, "Sanity"); | |
| 484 _first = task->next(); | |
| 0 | 485 } |
| 486 | |
| 1783 | 487 if (task->next() != NULL) { |
| 488 task->next()->set_prev(task->prev()); | |
| 489 } else { | |
| 490 // max is the last element | |
| 491 assert(task == _last, "Sanity"); | |
| 492 _last = task->prev(); | |
| 493 } | |
| 0 | 494 |
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495 // (tw) Immediately set compiling flag. |
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496 JavaThread::current()->as_CompilerThread()->set_compiling(true); |
| 1783 | 497 --_size; |
| 0 | 498 } |
| 499 | |
| 500 // ------------------------------------------------------------------ | |
| 501 // CompileQueue::print | |
| 502 void CompileQueue::print() { | |
| 503 tty->print_cr("Contents of %s", name()); | |
| 504 tty->print_cr("----------------------"); | |
| 505 CompileTask* task = _first; | |
| 506 while (task != NULL) { | |
| 507 task->print_line(); | |
| 508 task = task->next(); | |
| 509 } | |
| 510 tty->print_cr("----------------------"); | |
| 511 } | |
| 512 | |
| 513 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
| 514 | |
| 515 _current_method[0] = '\0'; | |
| 516 _compile_type = CompileBroker::no_compile; | |
| 517 | |
| 518 if (UsePerfData) { | |
| 519 ResourceMark rm; | |
| 520 | |
| 521 // create the thread instance name space string - don't create an | |
| 522 // instance subspace if instance is -1 - keeps the adapterThread | |
| 523 // counters from having a ".0" namespace. | |
| 524 const char* thread_i = (instance == -1) ? thread_name : | |
| 525 PerfDataManager::name_space(thread_name, instance); | |
| 526 | |
| 527 | |
| 528 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
| 529 _perf_current_method = | |
| 530 PerfDataManager::create_string_variable(SUN_CI, name, | |
| 531 cmname_buffer_length, | |
| 532 _current_method, CHECK); | |
| 533 | |
| 534 name = PerfDataManager::counter_name(thread_i, "type"); | |
| 535 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
| 536 PerfData::U_None, | |
| 537 (jlong)_compile_type, | |
| 538 CHECK); | |
| 539 | |
| 540 name = PerfDataManager::counter_name(thread_i, "time"); | |
| 541 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
| 542 PerfData::U_Ticks, CHECK); | |
| 543 | |
| 544 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
| 545 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
| 546 PerfData::U_Events, CHECK); | |
| 547 } | |
| 548 } | |
| 549 | |
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550 // Bootstrap the C1X compiler. Compiles all methods until compile queue is empty and no compilation is active. |
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551 void CompileBroker::bootstrap_c1x() { |
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552 HandleMark hm; |
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553 Thread* THREAD = Thread::current(); |
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554 tty->print_cr("Bootstrapping C1X..."); |
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555 |
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556 C1XCompiler* compiler = C1XCompiler::instance(); |
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557 if (compiler == NULL) fatal("must use flag -XX:+UseC1X"); |
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558 |
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559 jlong start = os::javaTimeMillis(); |
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560 |
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561 instanceKlass* klass = (instanceKlass*)SystemDictionary::Object_klass()->klass_part(); |
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562 methodOop method = klass->find_method(vmSymbols::object_initializer_name(), vmSymbols::void_method_signature()); |
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563 CompileBroker::compile_method(method, -1, 0, method, 0, "initial compile of object initializer", THREAD); |
|
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564 if (HAS_PENDING_EXCEPTION) { |
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565 CLEAR_PENDING_EXCEPTION; |
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566 fatal("error inserting object initializer into compile queue"); |
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567 } |
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568 |
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569 int z = 0; |
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570 while (true) { |
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571 { |
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572 HandleMark hm; |
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573 ResourceMark rm; |
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574 MutexLocker locker(_c1_method_queue->lock(), Thread::current()); |
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575 if (_c1_method_queue->is_empty()) { |
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576 MutexLocker mu(Threads_lock); // grab Threads_lock |
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577 JavaThread* current = Threads::first(); |
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578 bool compiling = false; |
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579 while (current != NULL) { |
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580 if (current->is_Compiler_thread()) { |
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581 CompilerThread* comp_thread = current->as_CompilerThread(); |
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582 if (comp_thread->is_compiling()) { |
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583 if (TraceC1X >= 4) { |
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584 tty->print_cr("Compile queue empty, but following thread is still compiling:"); |
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585 comp_thread->print(); |
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586 } |
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587 compiling = true; |
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588 } |
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589 } |
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590 current = current->next(); |
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591 } |
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592 if (!compiling) { |
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593 break; |
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594 } |
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595 } |
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596 if (TraceC1X >= 4) { |
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597 _c1_method_queue->print(); |
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598 } |
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599 } |
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600 |
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601 { |
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602 ThreadToNativeFromVM trans(JavaThread::current()); |
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603 usleep(1000); |
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604 } |
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605 ++z; |
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606 } |
|
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607 |
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608 // Do a full garbage collection. |
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609 Universe::heap()->collect(GCCause::_java_lang_system_gc); |
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610 |
|
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611 jlong diff = os::javaTimeMillis() - start; |
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612 tty->print_cr("Finished bootstrap in %d ms", diff); |
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613 if (CITime) CompileBroker::print_times(); |
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614 tty->print_cr("==========================================================================="); |
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615 } |
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616 |
| 0 | 617 |
| 618 // ------------------------------------------------------------------ | |
| 619 // CompileBroker::compilation_init | |
| 620 // | |
| 621 // Initialize the Compilation object | |
| 622 void CompileBroker::compilation_init() { | |
| 623 _last_method_compiled[0] = '\0'; | |
| 624 | |
| 1970 | 625 #ifndef SHARK |
| 0 | 626 // Set the interface to the current compiler(s). |
| 1783 | 627 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
| 628 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
| 0 | 629 #ifdef COMPILER1 |
|
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630 if (UseC1X) { |
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631 _compilers[0] = new C1XCompiler(); |
| 1930 | 632 } else if (c1_count > 0) { |
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633 _compilers[0] = new Compiler(); |
| 1783 | 634 } |
| 0 | 635 #ifndef COMPILER2 |
| 636 _compilers[1] = _compilers[0]; | |
| 637 #endif | |
| 638 #endif // COMPILER1 | |
| 639 | |
| 640 #ifdef COMPILER2 | |
| 1783 | 641 if (c2_count > 0) { |
| 642 _compilers[1] = new C2Compiler(); | |
| 643 } | |
| 0 | 644 #endif // COMPILER2 |
| 645 | |
| 1970 | 646 #else // SHARK |
| 647 int c1_count = 0; | |
| 648 int c2_count = 1; | |
| 649 | |
| 650 _compilers[1] = new SharkCompiler(); | |
| 651 #endif // SHARK | |
| 1692 | 652 |
| 0 | 653 // Initialize the CompileTask free list |
| 654 _task_free_list = NULL; | |
| 655 | |
| 656 // Start the CompilerThreads | |
| 1783 | 657 init_compiler_threads(c1_count, c2_count); |
| 0 | 658 // totalTime performance counter is always created as it is required |
| 659 // by the implementation of java.lang.management.CompilationMBean. | |
| 660 { | |
| 661 EXCEPTION_MARK; | |
| 662 _perf_total_compilation = | |
| 663 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
| 664 PerfData::U_Ticks, CHECK); | |
| 665 } | |
| 666 | |
| 667 | |
| 668 if (UsePerfData) { | |
| 669 | |
| 670 EXCEPTION_MARK; | |
| 671 | |
| 672 // create the jvmstat performance counters | |
| 673 _perf_osr_compilation = | |
| 674 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
| 675 PerfData::U_Ticks, CHECK); | |
| 676 | |
| 677 _perf_standard_compilation = | |
| 678 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
| 679 PerfData::U_Ticks, CHECK); | |
| 680 | |
| 681 _perf_total_bailout_count = | |
| 682 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
| 683 PerfData::U_Events, CHECK); | |
| 684 | |
| 685 _perf_total_invalidated_count = | |
| 686 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
| 687 PerfData::U_Events, CHECK); | |
| 688 | |
| 689 _perf_total_compile_count = | |
| 690 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
| 691 PerfData::U_Events, CHECK); | |
| 692 _perf_total_osr_compile_count = | |
| 693 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
| 694 PerfData::U_Events, CHECK); | |
| 695 | |
| 696 _perf_total_standard_compile_count = | |
| 697 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
| 698 PerfData::U_Events, CHECK); | |
| 699 | |
| 700 _perf_sum_osr_bytes_compiled = | |
| 701 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
| 702 PerfData::U_Bytes, CHECK); | |
| 703 | |
| 704 _perf_sum_standard_bytes_compiled = | |
| 705 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
| 706 PerfData::U_Bytes, CHECK); | |
| 707 | |
| 708 _perf_sum_nmethod_size = | |
| 709 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
| 710 PerfData::U_Bytes, CHECK); | |
| 711 | |
| 712 _perf_sum_nmethod_code_size = | |
| 713 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
| 714 PerfData::U_Bytes, CHECK); | |
| 715 | |
| 716 _perf_last_method = | |
| 717 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
| 718 CompilerCounters::cmname_buffer_length, | |
| 719 "", CHECK); | |
| 720 | |
| 721 _perf_last_failed_method = | |
| 722 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
| 723 CompilerCounters::cmname_buffer_length, | |
| 724 "", CHECK); | |
| 725 | |
| 726 _perf_last_invalidated_method = | |
| 727 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
| 728 CompilerCounters::cmname_buffer_length, | |
| 729 "", CHECK); | |
| 730 | |
| 731 _perf_last_compile_type = | |
| 732 PerfDataManager::create_variable(SUN_CI, "lastType", | |
| 733 PerfData::U_None, | |
| 734 (jlong)CompileBroker::no_compile, | |
| 735 CHECK); | |
| 736 | |
| 737 _perf_last_compile_size = | |
| 738 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
| 739 PerfData::U_Bytes, | |
| 740 (jlong)CompileBroker::no_compile, | |
| 741 CHECK); | |
| 742 | |
| 743 | |
| 744 _perf_last_failed_type = | |
| 745 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
| 746 PerfData::U_None, | |
| 747 (jlong)CompileBroker::no_compile, | |
| 748 CHECK); | |
| 749 | |
| 750 _perf_last_invalidated_type = | |
| 751 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
| 752 PerfData::U_None, | |
| 753 (jlong)CompileBroker::no_compile, | |
| 754 CHECK); | |
| 755 } | |
| 756 | |
| 757 _initialized = true; | |
| 758 } | |
| 759 | |
| 760 | |
| 761 | |
| 762 // ------------------------------------------------------------------ | |
| 763 // CompileBroker::make_compiler_thread | |
| 764 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS) { | |
| 765 CompilerThread* compiler_thread = NULL; | |
| 766 | |
| 767 klassOop k = | |
| 768 SystemDictionary::resolve_or_fail(vmSymbolHandles::java_lang_Thread(), | |
| 769 true, CHECK_0); | |
| 770 instanceKlassHandle klass (THREAD, k); | |
| 771 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
| 772 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
| 773 | |
| 774 // Initialize thread_oop to put it into the system threadGroup | |
| 775 Handle thread_group (THREAD, Universe::system_thread_group()); | |
| 776 JavaValue result(T_VOID); | |
| 777 JavaCalls::call_special(&result, thread_oop, | |
| 778 klass, | |
| 779 vmSymbolHandles::object_initializer_name(), | |
| 780 vmSymbolHandles::threadgroup_string_void_signature(), | |
| 781 thread_group, | |
| 782 string, | |
| 783 CHECK_0); | |
| 784 | |
| 785 { | |
| 786 MutexLocker mu(Threads_lock, THREAD); | |
| 787 compiler_thread = new CompilerThread(queue, counters); | |
| 788 // At this point the new CompilerThread data-races with this startup | |
| 789 // thread (which I believe is the primoridal thread and NOT the VM | |
| 790 // thread). This means Java bytecodes being executed at startup can | |
| 791 // queue compile jobs which will run at whatever default priority the | |
| 792 // newly created CompilerThread runs at. | |
| 793 | |
| 794 | |
| 795 // At this point it may be possible that no osthread was created for the | |
| 796 // JavaThread due to lack of memory. We would have to throw an exception | |
| 797 // in that case. However, since this must work and we do not allow | |
| 798 // exceptions anyway, check and abort if this fails. | |
| 799 | |
| 800 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
| 801 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
| 802 "unable to create new native thread"); | |
| 803 } | |
| 804 | |
| 805 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
| 806 | |
| 807 // Note that this only sets the JavaThread _priority field, which by | |
| 808 // definition is limited to Java priorities and not OS priorities. | |
| 809 // The os-priority is set in the CompilerThread startup code itself | |
| 810 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); | |
| 811 // CLEANUP PRIORITIES: This -if- statement hids a bug whereby the compiler | |
| 812 // threads never have their OS priority set. The assumption here is to | |
| 813 // enable the Performance group to do flag tuning, figure out a suitable | |
| 814 // CompilerThreadPriority, and then remove this 'if' statement (and | |
| 815 // comment) and unconditionally set the priority. | |
| 816 | |
| 817 // Compiler Threads should be at the highest Priority | |
| 818 if ( CompilerThreadPriority != -1 ) | |
| 819 os::set_native_priority( compiler_thread, CompilerThreadPriority ); | |
| 820 else | |
| 821 os::set_native_priority( compiler_thread, os::java_to_os_priority[NearMaxPriority]); | |
| 822 | |
| 823 // Note that I cannot call os::set_priority because it expects Java | |
| 824 // priorities and I am *explicitly* using OS priorities so that it's | |
| 825 // possible to set the compiler thread priority higher than any Java | |
| 826 // thread. | |
| 827 | |
| 828 java_lang_Thread::set_daemon(thread_oop()); | |
| 829 | |
| 830 compiler_thread->set_threadObj(thread_oop()); | |
| 831 Threads::add(compiler_thread); | |
| 832 Thread::start(compiler_thread); | |
| 833 } | |
| 834 // Let go of Threads_lock before yielding | |
| 835 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
| 836 | |
| 837 return compiler_thread; | |
| 838 } | |
| 839 | |
| 840 | |
| 841 // ------------------------------------------------------------------ | |
| 842 // CompileBroker::init_compiler_threads | |
| 843 // | |
| 844 // Initialize the compilation queue | |
| 1783 | 845 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
| 0 | 846 EXCEPTION_MARK; |
| 1783 | 847 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
| 848 if (c2_compiler_count > 0) { | |
| 849 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
| 850 } | |
| 851 if (c1_compiler_count > 0) { | |
| 852 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
| 853 } | |
| 0 | 854 |
| 1783 | 855 int compiler_count = c1_compiler_count + c2_compiler_count; |
| 856 | |
| 0 | 857 _method_threads = |
| 858 new (ResourceObj::C_HEAP) GrowableArray<CompilerThread*>(compiler_count, true); | |
| 859 | |
| 860 char name_buffer[256]; | |
| 1783 | 861 for (int i = 0; i < c2_compiler_count; i++) { |
| 0 | 862 // Create a name for our thread. |
| 1783 | 863 sprintf(name_buffer, "C2 CompilerThread%d", i); |
| 0 | 864 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
| 1783 | 865 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, CHECK); |
| 0 | 866 _method_threads->append(new_thread); |
| 867 } | |
| 1783 | 868 |
| 869 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
| 870 // Create a name for our thread. | |
| 871 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
| 872 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
| 873 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, CHECK); | |
| 874 _method_threads->append(new_thread); | |
| 875 } | |
| 876 | |
| 0 | 877 if (UsePerfData) { |
| 878 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, | |
| 879 compiler_count, CHECK); | |
| 880 } | |
| 881 } | |
| 882 | |
| 883 // ------------------------------------------------------------------ | |
| 884 // CompileBroker::is_idle | |
| 885 bool CompileBroker::is_idle() { | |
| 1783 | 886 if (_c2_method_queue != NULL && !_c2_method_queue->is_empty()) { |
| 887 return false; | |
| 888 } else if (_c1_method_queue != NULL && !_c1_method_queue->is_empty()) { | |
| 0 | 889 return false; |
| 890 } else { | |
| 891 int num_threads = _method_threads->length(); | |
| 892 for (int i=0; i<num_threads; i++) { | |
| 893 if (_method_threads->at(i)->task() != NULL) { | |
| 894 return false; | |
| 895 } | |
| 896 } | |
| 897 | |
| 898 // No pending or active compilations. | |
| 899 return true; | |
| 900 } | |
| 901 } | |
| 902 | |
| 903 | |
| 904 // ------------------------------------------------------------------ | |
| 905 // CompileBroker::compile_method | |
| 906 // | |
| 907 // Request compilation of a method. | |
| 908 void CompileBroker::compile_method_base(methodHandle method, | |
| 909 int osr_bci, | |
| 910 int comp_level, | |
| 911 methodHandle hot_method, | |
| 912 int hot_count, | |
| 913 const char* comment, | |
| 914 TRAPS) { | |
| 915 // do nothing if compiler thread(s) is not available | |
| 916 if (!_initialized ) { | |
| 917 return; | |
| 918 } | |
| 919 | |
| 920 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
| 921 assert(method->method_holder()->klass_part()->oop_is_instance(), | |
| 922 "sanity check"); | |
| 923 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), | |
| 924 "method holder must be initialized"); | |
| 925 | |
| 926 if (CIPrintRequests) { | |
| 927 tty->print("request: "); | |
| 928 method->print_short_name(tty); | |
| 929 if (osr_bci != InvocationEntryBci) { | |
| 930 tty->print(" osr_bci: %d", osr_bci); | |
| 931 } | |
| 932 tty->print(" comment: %s count: %d", comment, hot_count); | |
| 933 if (!hot_method.is_null()) { | |
| 934 tty->print(" hot: "); | |
| 935 if (hot_method() != method()) { | |
| 936 hot_method->print_short_name(tty); | |
| 937 } else { | |
| 938 tty->print("yes"); | |
| 939 } | |
| 940 } | |
| 941 tty->cr(); | |
| 942 } | |
| 943 | |
| 944 // A request has been made for compilation. Before we do any | |
| 945 // real work, check to see if the method has been compiled | |
| 946 // in the meantime with a definitive result. | |
| 947 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 948 return; | |
| 949 } | |
| 950 | |
| 1783 | 951 |
| 0 | 952 // If this method is already in the compile queue, then |
| 953 // we do not block the current thread. | |
| 954 if (compilation_is_in_queue(method, osr_bci)) { | |
| 955 // We may want to decay our counter a bit here to prevent | |
| 956 // multiple denied requests for compilation. This is an | |
| 957 // open compilation policy issue. Note: The other possibility, | |
| 958 // in the case that this is a blocking compile request, is to have | |
| 959 // all subsequent blocking requesters wait for completion of | |
| 960 // ongoing compiles. Note that in this case we'll need a protocol | |
| 961 // for freeing the associated compile tasks. [Or we could have | |
| 962 // a single static monitor on which all these waiters sleep.] | |
| 963 return; | |
| 964 } | |
| 965 | |
| 966 // Outputs from the following MutexLocker block: | |
| 967 CompileTask* task = NULL; | |
| 968 bool blocking = false; | |
| 1783 | 969 CompileQueue* queue = compile_queue(comp_level); |
| 0 | 970 |
| 971 // Acquire our lock. | |
| 972 { | |
| 1783 | 973 MutexLocker locker(queue->lock(), THREAD); |
| 0 | 974 |
|
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975 if (Thread::current()->is_Compiler_thread() && CompilerThread::current()->is_compiling() && !BackgroundCompilation) { |
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976 |
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977 TRACE_C1X_1("Recursive compile %s!", method->name_and_sig_as_C_string()); |
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978 method->set_not_compilable(); |
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979 return; |
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980 } |
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981 |
| 0 | 982 // Make sure the method has not slipped into the queues since |
| 983 // last we checked; note that those checks were "fast bail-outs". | |
| 984 // Here we need to be more careful, see 14012000 below. | |
| 985 if (compilation_is_in_queue(method, osr_bci)) { | |
| 986 return; | |
| 987 } | |
| 988 | |
| 989 // We need to check again to see if the compilation has | |
| 990 // completed. A previous compilation may have registered | |
| 991 // some result. | |
| 992 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 993 return; | |
| 994 } | |
| 995 | |
| 996 // We now know that this compilation is not pending, complete, | |
| 997 // or prohibited. Assign a compile_id to this compilation | |
| 998 // and check to see if it is in our [Start..Stop) range. | |
| 999 uint compile_id = assign_compile_id(method, osr_bci); | |
| 1000 if (compile_id == 0) { | |
| 1001 // The compilation falls outside the allowed range. | |
| 1002 return; | |
| 1003 } | |
| 1004 | |
| 1005 // Should this thread wait for completion of the compile? | |
| 1006 blocking = is_compile_blocking(method, osr_bci); | |
| 1007 | |
| 1008 // We will enter the compilation in the queue. | |
| 1009 // 14012000: Note that this sets the queued_for_compile bits in | |
| 1010 // the target method. We can now reason that a method cannot be | |
| 1011 // queued for compilation more than once, as follows: | |
| 1012 // Before a thread queues a task for compilation, it first acquires | |
| 1013 // the compile queue lock, then checks if the method's queued bits | |
| 1014 // are set or it has already been compiled. Thus there can not be two | |
| 1015 // instances of a compilation task for the same method on the | |
| 1016 // compilation queue. Consider now the case where the compilation | |
| 1017 // thread has already removed a task for that method from the queue | |
| 1018 // and is in the midst of compiling it. In this case, the | |
| 1019 // queued_for_compile bits must be set in the method (and these | |
| 1020 // will be visible to the current thread, since the bits were set | |
| 1021 // under protection of the compile queue lock, which we hold now. | |
| 1022 // When the compilation completes, the compiler thread first sets | |
| 1023 // the compilation result and then clears the queued_for_compile | |
| 1024 // bits. Neither of these actions are protected by a barrier (or done | |
| 1025 // under the protection of a lock), so the only guarantee we have | |
| 1026 // (on machines with TSO (Total Store Order)) is that these values | |
| 1027 // will update in that order. As a result, the only combinations of | |
| 1028 // these bits that the current thread will see are, in temporal order: | |
| 1029 // <RESULT, QUEUE> : | |
| 1030 // <0, 1> : in compile queue, but not yet compiled | |
| 1031 // <1, 1> : compiled but queue bit not cleared | |
| 1032 // <1, 0> : compiled and queue bit cleared | |
| 1033 // Because we first check the queue bits then check the result bits, | |
| 1034 // we are assured that we cannot introduce a duplicate task. | |
| 1035 // Note that if we did the tests in the reverse order (i.e. check | |
| 1036 // result then check queued bit), we could get the result bit before | |
| 1037 // the compilation completed, and the queue bit after the compilation | |
| 1038 // completed, and end up introducing a "duplicate" (redundant) task. | |
| 1039 // In that case, the compiler thread should first check if a method | |
| 1040 // has already been compiled before trying to compile it. | |
| 1041 // NOTE: in the event that there are multiple compiler threads and | |
| 1042 // there is de-optimization/recompilation, things will get hairy, | |
| 1043 // and in that case it's best to protect both the testing (here) of | |
| 1044 // these bits, and their updating (here and elsewhere) under a | |
| 1045 // common lock. | |
| 1783 | 1046 task = create_compile_task(queue, |
| 0 | 1047 compile_id, method, |
| 1048 osr_bci, comp_level, | |
| 1049 hot_method, hot_count, comment, | |
| 1050 blocking); | |
| 1051 } | |
| 1052 | |
| 1053 if (blocking) { | |
| 1054 wait_for_completion(task); | |
| 1055 } | |
| 1056 } | |
| 1057 | |
| 1058 | |
| 1059 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
| 1783 | 1060 int comp_level, |
| 0 | 1061 methodHandle hot_method, int hot_count, |
| 1062 const char* comment, TRAPS) { | |
| 1063 // make sure arguments make sense | |
| 1064 assert(method->method_holder()->klass_part()->oop_is_instance(), "not an instance method"); | |
| 1065 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); | |
| 1066 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
| 1067 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), "method holder must be initialized"); | |
| 1068 | |
| 1783 | 1069 if (!TieredCompilation) { |
| 1070 comp_level = CompLevel_highest_tier; | |
| 0 | 1071 } |
| 1072 | |
| 1073 // return quickly if possible | |
| 1074 | |
| 1075 // lock, make sure that the compilation | |
| 1076 // isn't prohibited in a straightforward way. | |
| 1077 | |
| 1078 if (compiler(comp_level) == NULL || compilation_is_prohibited(method, osr_bci, comp_level)) { | |
| 1079 return NULL; | |
| 1080 } | |
| 1081 | |
| 1082 if (osr_bci == InvocationEntryBci) { | |
| 1083 // standard compilation | |
| 1084 nmethod* method_code = method->code(); | |
| 1783 | 1085 if (method_code != NULL) { |
| 1086 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1087 return method_code; | |
| 1088 } | |
| 0 | 1089 } |
| 1090 if (method->is_not_compilable(comp_level)) return NULL; | |
| 1202 | 1091 |
|
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1092 if (UseCodeCacheFlushing) { |
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1093 nmethod* saved = CodeCache::find_and_remove_saved_code(method()); |
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1094 if (saved != NULL) { |
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1095 method->set_code(method, saved); |
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|
1096 return saved; |
|
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|
1097 } |
| 1202 | 1098 } |
| 1099 | |
| 0 | 1100 } else { |
| 1101 // osr compilation | |
| 1102 #ifndef TIERED | |
| 1103 // seems like an assert of dubious value | |
| 1783 | 1104 assert(comp_level == CompLevel_highest_tier, |
| 0 | 1105 "all OSR compiles are assumed to be at a single compilation lavel"); |
| 1106 #endif // TIERED | |
| 1783 | 1107 // We accept a higher level osr method |
| 1108 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1109 if (nm != NULL) return nm; |
| 1110 if (method->is_not_osr_compilable()) return NULL; | |
| 1111 } | |
| 1112 | |
| 1113 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
| 1114 // some prerequisites that are compiler specific | |
| 1115 if (compiler(comp_level)->is_c2()) { | |
| 1116 method->constants()->resolve_string_constants(CHECK_0); | |
| 1117 // Resolve all classes seen in the signature of the method | |
| 1118 // we are compiling. | |
| 1119 methodOopDesc::load_signature_classes(method, CHECK_0); | |
| 1120 } | |
| 1121 | |
| 1122 // If the method is native, do the lookup in the thread requesting | |
| 1123 // the compilation. Native lookups can load code, which is not | |
| 1124 // permitted during compilation. | |
| 1125 // | |
| 1126 // Note: A native method implies non-osr compilation which is | |
| 1127 // checked with an assertion at the entry of this method. | |
| 1128 if (method->is_native()) { | |
| 1129 bool in_base_library; | |
| 1130 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
| 1131 if (HAS_PENDING_EXCEPTION) { | |
| 1132 // In case of an exception looking up the method, we just forget | |
| 1133 // about it. The interpreter will kick-in and throw the exception. | |
| 1134 method->set_not_compilable(); // implies is_not_osr_compilable() | |
| 1135 CLEAR_PENDING_EXCEPTION; | |
| 1136 return NULL; | |
| 1137 } | |
| 1138 assert(method->has_native_function(), "must have native code by now"); | |
| 1139 } | |
| 1140 | |
| 1141 // RedefineClasses() has replaced this method; just return | |
| 1142 if (method->is_old()) { | |
| 1143 return NULL; | |
| 1144 } | |
| 1145 | |
| 1146 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
| 1147 // a lock the compiling thread can not acquire. Prefetch it here. | |
| 1148 if (JvmtiExport::should_post_compiled_method_load()) { | |
| 1149 method->jmethod_id(); | |
| 1150 } | |
| 1151 | |
| 1202 | 1152 // If the compiler is shut off due to code cache flushing or otherwise, |
| 1153 // fail out now so blocking compiles dont hang the java thread | |
| 1154 if (!should_compile_new_jobs() || (UseCodeCacheFlushing && CodeCache::needs_flushing())) { | |
| 1783 | 1155 CompilationPolicy::policy()->delay_compilation(method()); |
| 1202 | 1156 return NULL; |
| 1157 } | |
| 1158 | |
| 0 | 1159 // do the compilation |
| 1160 if (method->is_native()) { | |
| 1161 if (!PreferInterpreterNativeStubs) { | |
| 1162 (void) AdapterHandlerLibrary::create_native_wrapper(method); | |
| 1163 } else { | |
| 1164 return NULL; | |
| 1165 } | |
| 1166 } else { | |
| 1167 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, CHECK_0); | |
| 1168 } | |
| 1169 | |
| 1170 // return requested nmethod | |
| 1783 | 1171 // We accept a higher level osr method |
| 1172 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1173 } |
| 1174 | |
| 1175 | |
| 1176 // ------------------------------------------------------------------ | |
| 1177 // CompileBroker::compilation_is_complete | |
| 1178 // | |
| 1179 // See if compilation of this method is already complete. | |
| 1180 bool CompileBroker::compilation_is_complete(methodHandle method, | |
| 1181 int osr_bci, | |
| 1182 int comp_level) { | |
| 1183 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1184 if (is_osr) { | |
| 1185 if (method->is_not_osr_compilable()) { | |
| 1186 return true; | |
| 1187 } else { | |
| 1783 | 1188 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
| 0 | 1189 return (result != NULL); |
| 1190 } | |
| 1191 } else { | |
| 1192 if (method->is_not_compilable(comp_level)) { | |
| 1193 return true; | |
| 1194 } else { | |
| 1195 nmethod* result = method->code(); | |
| 1196 if (result == NULL) return false; | |
| 1783 | 1197 return comp_level == result->comp_level(); |
| 0 | 1198 } |
| 1199 } | |
| 1200 } | |
| 1201 | |
| 1202 | |
| 1203 // ------------------------------------------------------------------ | |
| 1204 // CompileBroker::compilation_is_in_queue | |
| 1205 // | |
| 1206 // See if this compilation is already requested. | |
| 1207 // | |
| 1208 // Implementation note: there is only a single "is in queue" bit | |
| 1209 // for each method. This means that the check below is overly | |
| 1210 // conservative in the sense that an osr compilation in the queue | |
| 1211 // will block a normal compilation from entering the queue (and vice | |
| 1212 // versa). This can be remedied by a full queue search to disambiguate | |
| 1213 // cases. If it is deemed profitible, this may be done. | |
| 1214 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
| 1783 | 1215 int osr_bci) { |
| 0 | 1216 return method->queued_for_compilation(); |
| 1217 } | |
| 1218 | |
| 1219 // ------------------------------------------------------------------ | |
| 1220 // CompileBroker::compilation_is_prohibited | |
| 1221 // | |
| 1222 // See if this compilation is not allowed. | |
| 1223 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
| 1224 bool is_native = method->is_native(); | |
| 1225 // Some compilers may not support the compilation of natives. | |
| 1226 if (is_native && | |
| 1227 (!CICompileNatives || !compiler(comp_level)->supports_native())) { | |
| 1783 | 1228 method->set_not_compilable_quietly(comp_level); |
| 0 | 1229 return true; |
| 1230 } | |
| 1231 | |
| 1232 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1233 // Some compilers may not support on stack replacement. | |
| 1234 if (is_osr && | |
| 1235 (!CICompileOSR || !compiler(comp_level)->supports_osr())) { | |
| 1236 method->set_not_osr_compilable(); | |
| 1237 return true; | |
| 1238 } | |
| 1239 | |
| 1240 // The method may be explicitly excluded by the user. | |
| 1241 bool quietly; | |
| 1242 if (CompilerOracle::should_exclude(method, quietly)) { | |
| 1243 if (!quietly) { | |
| 1244 // This does not happen quietly... | |
| 1245 ResourceMark rm; | |
| 1246 tty->print("### Excluding %s:%s", | |
| 1247 method->is_native() ? "generation of native wrapper" : "compile", | |
| 1248 (method->is_static() ? " static" : "")); | |
| 1249 method->print_short_name(tty); | |
| 1250 tty->cr(); | |
| 1251 } | |
|
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1252 method->set_not_compilable_quietly(); |
| 0 | 1253 } |
| 1254 | |
| 1255 return false; | |
| 1256 } | |
| 1257 | |
| 1258 | |
| 1259 // ------------------------------------------------------------------ | |
| 1260 // CompileBroker::assign_compile_id | |
| 1261 // | |
| 1262 // Assign a serialized id number to this compilation request. If the | |
| 1263 // number falls out of the allowed range, return a 0. OSR | |
| 1264 // compilations may be numbered separately from regular compilations | |
| 1265 // if certain debugging flags are used. | |
| 1266 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
| 1783 | 1267 assert(MethodCompileQueue_lock->owner() == Thread::current(), |
| 0 | 1268 "must hold the compilation queue lock"); |
| 1269 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1270 assert(!method->is_native(), "no longer compile natives"); | |
| 1271 uint id; | |
| 1272 if (CICountOSR && is_osr) { | |
| 1273 id = ++_osr_compilation_id; | |
| 1274 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
| 1275 return id; | |
| 1276 } | |
| 1277 } else { | |
| 1278 id = ++_compilation_id; | |
| 1279 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
| 1280 return id; | |
| 1281 } | |
| 1282 } | |
| 1283 | |
| 1284 // Method was not in the appropriate compilation range. | |
|
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|
1285 method->set_not_compilable_quietly(); |
| 0 | 1286 return 0; |
| 1287 } | |
| 1288 | |
| 1289 | |
| 1290 // ------------------------------------------------------------------ | |
| 1291 // CompileBroker::is_compile_blocking | |
| 1292 // | |
| 1293 // Should the current thread be blocked until this compilation request | |
| 1294 // has been fulfilled? | |
| 1295 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
| 1296 return !BackgroundCompilation; | |
| 1297 } | |
| 1298 | |
| 1299 | |
| 1300 // ------------------------------------------------------------------ | |
| 1301 // CompileBroker::preload_classes | |
| 1302 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
| 1303 // Move this code over from c1_Compiler.cpp | |
| 1304 ShouldNotReachHere(); | |
| 1305 } | |
| 1306 | |
| 1307 | |
| 1308 // ------------------------------------------------------------------ | |
| 1309 // CompileBroker::create_compile_task | |
| 1310 // | |
| 1311 // Create a CompileTask object representing the current request for | |
| 1312 // compilation. Add this task to the queue. | |
| 1313 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
| 1314 int compile_id, | |
| 1315 methodHandle method, | |
| 1316 int osr_bci, | |
| 1317 int comp_level, | |
| 1318 methodHandle hot_method, | |
| 1319 int hot_count, | |
| 1320 const char* comment, | |
| 1321 bool blocking) { | |
| 1322 CompileTask* new_task = allocate_task(); | |
| 1323 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
| 1324 hot_method, hot_count, comment, | |
| 1325 blocking); | |
| 1326 queue->add(new_task); | |
| 1327 return new_task; | |
| 1328 } | |
| 1329 | |
| 1330 | |
| 1331 // ------------------------------------------------------------------ | |
| 1332 // CompileBroker::allocate_task | |
| 1333 // | |
| 1334 // Allocate a CompileTask, from the free list if possible. | |
| 1335 CompileTask* CompileBroker::allocate_task() { | |
| 1336 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1337 CompileTask* task = NULL; | |
| 1338 if (_task_free_list != NULL) { | |
| 1339 task = _task_free_list; | |
| 1340 _task_free_list = task->next(); | |
| 1341 task->set_next(NULL); | |
| 1342 } else { | |
| 1343 task = new CompileTask(); | |
| 1344 task->set_next(NULL); | |
| 1345 } | |
| 1346 return task; | |
| 1347 } | |
| 1348 | |
| 1349 | |
| 1350 // ------------------------------------------------------------------ | |
| 1351 // CompileBroker::free_task | |
| 1352 // | |
| 1353 // Add a task to the free list. | |
| 1354 void CompileBroker::free_task(CompileTask* task) { | |
| 1355 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1356 task->free(); | |
| 1357 task->set_next(_task_free_list); | |
| 1358 _task_free_list = task; | |
| 1359 } | |
| 1360 | |
| 1361 | |
| 1362 // ------------------------------------------------------------------ | |
| 1363 // CompileBroker::wait_for_completion | |
| 1364 // | |
| 1365 // Wait for the given method CompileTask to complete. | |
| 1366 void CompileBroker::wait_for_completion(CompileTask* task) { | |
| 1367 if (CIPrintCompileQueue) { | |
| 1368 tty->print_cr("BLOCKING FOR COMPILE"); | |
| 1369 } | |
| 1370 | |
| 1371 assert(task->is_blocking(), "can only wait on blocking task"); | |
| 1372 | |
| 1373 JavaThread *thread = JavaThread::current(); | |
| 1374 thread->set_blocked_on_compilation(true); | |
| 1375 | |
| 1376 methodHandle method(thread, | |
| 1377 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1378 { | |
| 1379 MutexLocker waiter(task->lock(), thread); | |
| 1380 | |
| 1381 while (!task->is_complete()) | |
| 1382 task->lock()->wait(); | |
| 1383 } | |
| 1384 // It is harmless to check this status without the lock, because | |
| 1385 // completion is a stable property (until the task object is recycled). | |
| 1386 assert(task->is_complete(), "Compilation should have completed"); | |
| 1387 assert(task->code_handle() == NULL, "must be reset"); | |
| 1388 | |
| 1389 thread->set_blocked_on_compilation(false); | |
| 1390 | |
| 1391 // By convention, the waiter is responsible for recycling a | |
| 1392 // blocking CompileTask. Since there is only one waiter ever | |
| 1393 // waiting on a CompileTask, we know that no one else will | |
| 1394 // be using this CompileTask; we can free it. | |
| 1395 free_task(task); | |
| 1396 } | |
| 1397 | |
| 1398 // ------------------------------------------------------------------ | |
| 1399 // CompileBroker::compiler_thread_loop | |
| 1400 // | |
| 1401 // The main loop run by a CompilerThread. | |
| 1402 void CompileBroker::compiler_thread_loop() { | |
| 1403 CompilerThread* thread = CompilerThread::current(); | |
| 1404 CompileQueue* queue = thread->queue(); | |
| 1405 | |
| 1406 // For the thread that initializes the ciObjectFactory | |
| 1407 // this resource mark holds all the shared objects | |
| 1408 ResourceMark rm; | |
| 1409 | |
| 1410 // First thread to get here will initialize the compiler interface | |
| 1411 | |
| 1412 if (!ciObjectFactory::is_initialized()) { | |
| 1413 ASSERT_IN_VM; | |
| 1414 MutexLocker only_one (CompileThread_lock, thread); | |
| 1415 if (!ciObjectFactory::is_initialized()) { | |
| 1416 ciObjectFactory::initialize(); | |
| 1417 } | |
| 1418 } | |
| 1419 | |
| 1420 // Open a log. | |
| 1421 if (LogCompilation) { | |
| 1422 init_compiler_thread_log(); | |
| 1423 } | |
| 1424 CompileLog* log = thread->log(); | |
| 1425 if (log != NULL) { | |
| 1426 log->begin_elem("start_compile_thread thread='" UINTX_FORMAT "' process='%d'", | |
| 1427 os::current_thread_id(), | |
| 1428 os::current_process_id()); | |
| 1429 log->stamp(); | |
| 1430 log->end_elem(); | |
| 1431 } | |
| 1432 | |
| 1433 while (true) { | |
| 1434 { | |
|
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Thomas Wuerthinger <wuerthinger@ssw.jku.at>
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1435 // Unset compiling flag. |
|
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Added flag -XX:BootstrapC1X that precompiles Object::<init> and then every method in the compilation queue until it is empty.
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|
1436 thread->set_compiling(false); |
|
7cf1952ec5fb
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|
1437 |
| 0 | 1438 // We need this HandleMark to avoid leaking VM handles. |
| 1439 HandleMark hm(thread); | |
| 1202 | 1440 |
| 0 | 1441 if (CodeCache::unallocated_capacity() < CodeCacheMinimumFreeSpace) { |
| 1202 | 1442 // the code cache is really full |
| 1443 handle_full_code_cache(); | |
| 1444 } else if (UseCodeCacheFlushing && CodeCache::needs_flushing()) { | |
| 1445 // Attempt to start cleaning the code cache while there is still a little headroom | |
| 1446 NMethodSweeper::handle_full_code_cache(false); | |
| 0 | 1447 } |
| 1448 | |
| 1449 CompileTask* task = queue->get(); | |
| 1450 | |
| 1451 // Give compiler threads an extra quanta. They tend to be bursty and | |
| 1452 // this helps the compiler to finish up the job. | |
| 1453 if( CompilerThreadHintNoPreempt ) | |
| 1454 os::hint_no_preempt(); | |
| 1455 | |
| 1456 // trace per thread time and compile statistics | |
| 1457 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); | |
| 1458 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); | |
| 1459 | |
| 1460 // Assign the task to the current thread. Mark this compilation | |
| 1461 // thread as active for the profiler. | |
| 1462 CompileTaskWrapper ctw(task); | |
| 1463 nmethodLocker result_handle; // (handle for the nmethod produced by this task) | |
| 1464 task->set_code_handle(&result_handle); | |
| 1465 methodHandle method(thread, | |
| 1466 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1467 | |
| 1468 // Never compile a method if breakpoints are present in it | |
| 1469 if (method()->number_of_breakpoints() == 0) { | |
| 1470 // Compile the method. | |
| 1202 | 1471 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
| 0 | 1472 #ifdef COMPILER1 |
| 1473 // Allow repeating compilations for the purpose of benchmarking | |
| 1474 // compile speed. This is not useful for customers. | |
| 1475 if (CompilationRepeat != 0) { | |
| 1476 int compile_count = CompilationRepeat; | |
| 1477 while (compile_count > 0) { | |
| 1478 invoke_compiler_on_method(task); | |
| 1479 nmethod* nm = method->code(); | |
| 1480 if (nm != NULL) { | |
| 1481 nm->make_zombie(); | |
| 1482 method->clear_code(); | |
| 1483 } | |
| 1484 compile_count--; | |
| 1485 } | |
| 1486 } | |
| 1487 #endif /* COMPILER1 */ | |
| 1488 invoke_compiler_on_method(task); | |
| 1489 } else { | |
| 1490 // After compilation is disabled, remove remaining methods from queue | |
| 1491 method->clear_queued_for_compilation(); | |
| 1492 } | |
| 1493 } | |
| 1494 } | |
| 1495 } | |
| 1496 } | |
| 1497 | |
| 1498 | |
| 1499 // ------------------------------------------------------------------ | |
| 1500 // CompileBroker::init_compiler_thread_log | |
| 1501 // | |
| 1502 // Set up state required by +LogCompilation. | |
| 1503 void CompileBroker::init_compiler_thread_log() { | |
| 1504 CompilerThread* thread = CompilerThread::current(); | |
| 1505 char fileBuf[4*K]; | |
| 1506 FILE* fp = NULL; | |
| 1507 char* file = NULL; | |
| 1508 intx thread_id = os::current_thread_id(); | |
| 1509 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
| 1510 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
|
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1511 if (dir == NULL) { |
|
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|
1512 jio_snprintf(fileBuf, sizeof(fileBuf), "hs_c" UINTX_FORMAT "_pid%u.log", |
|
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|
1513 thread_id, os::current_process_id()); |
|
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|
1514 } else { |
|
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|
1515 jio_snprintf(fileBuf, sizeof(fileBuf), |
|
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|
1516 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
|
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|
1517 os::file_separator(), thread_id, os::current_process_id()); |
|
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|
1518 } |
| 0 | 1519 fp = fopen(fileBuf, "at"); |
| 1520 if (fp != NULL) { | |
| 1521 file = NEW_C_HEAP_ARRAY(char, strlen(fileBuf)+1); | |
| 1522 strcpy(file, fileBuf); | |
| 1523 break; | |
| 1524 } | |
| 1525 } | |
| 1526 if (fp == NULL) { | |
| 1527 warning("Cannot open log file: %s", fileBuf); | |
| 1528 } else { | |
| 1529 if (LogCompilation && Verbose) | |
| 1530 tty->print_cr("Opening compilation log %s", file); | |
| 1531 CompileLog* log = new(ResourceObj::C_HEAP) CompileLog(file, fp, thread_id); | |
| 1532 thread->init_log(log); | |
| 1533 | |
| 1534 if (xtty != NULL) { | |
| 1535 ttyLocker ttyl; | |
| 1536 | |
| 1537 // Record any per thread log files | |
| 1538 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file); | |
| 1539 } | |
| 1540 } | |
| 1541 } | |
| 1542 | |
| 1543 // ------------------------------------------------------------------ | |
| 1544 // CompileBroker::set_should_block | |
| 1545 // | |
| 1546 // Set _should_block. | |
| 1547 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
| 1548 void CompileBroker::set_should_block() { | |
| 1549 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
| 1550 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
| 1551 #ifndef PRODUCT | |
| 1552 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1553 tty->print_cr("notifying compiler thread pool to block"); | |
| 1554 #endif | |
| 1555 _should_block = true; | |
| 1556 } | |
| 1557 | |
| 1558 // ------------------------------------------------------------------ | |
| 1559 // CompileBroker::maybe_block | |
| 1560 // | |
| 1561 // Call this from the compiler at convenient points, to poll for _should_block. | |
| 1562 void CompileBroker::maybe_block() { | |
| 1563 if (_should_block) { | |
| 1564 #ifndef PRODUCT | |
| 1565 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1566 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
| 1567 #endif | |
| 1568 ThreadInVMfromNative tivfn(JavaThread::current()); | |
| 1569 } | |
| 1570 } | |
| 1571 | |
| 1572 | |
| 1573 // ------------------------------------------------------------------ | |
| 1574 // CompileBroker::invoke_compiler_on_method | |
| 1575 // | |
| 1576 // Compile a method. | |
| 1577 // | |
| 1578 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
| 1579 if (PrintCompilation) { | |
| 1580 ResourceMark rm; | |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
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diff
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|
1581 tty->print("%s: ", compiler(task->comp_level())->name()); |
| 0 | 1582 task->print_line(); |
| 1583 } | |
| 1584 elapsedTimer time; | |
| 1585 | |
| 1586 CompilerThread* thread = CompilerThread::current(); | |
| 1587 ResourceMark rm(thread); | |
| 1588 | |
| 1589 // Common flags. | |
| 1590 uint compile_id = task->compile_id(); | |
| 1591 int osr_bci = task->osr_bci(); | |
| 1592 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1593 bool should_log = (thread->log() != NULL); | |
| 1594 bool should_break = false; | |
| 1595 { | |
| 1596 // create the handle inside it's own block so it can't | |
| 1597 // accidentally be referenced once the thread transitions to | |
| 1598 // native. The NoHandleMark before the transition should catch | |
| 1599 // any cases where this occurs in the future. | |
| 1600 methodHandle method(thread, | |
| 1601 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1602 should_break = check_break_at(method, compile_id, is_osr); | |
| 1603 if (should_log && !CompilerOracle::should_log(method)) { | |
| 1604 should_log = false; | |
| 1605 } | |
| 1606 assert(!method->is_native(), "no longer compile natives"); | |
| 1607 | |
| 1608 // Save information about this method in case of failure. | |
| 1609 set_last_compile(thread, method, is_osr, task->comp_level()); | |
| 1610 | |
| 1611 DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task->comp_level()), method); | |
| 1612 } | |
| 1613 | |
| 1614 // Allocate a new set of JNI handles. | |
| 1615 push_jni_handle_block(); | |
| 1616 jobject target_handle = JNIHandles::make_local(thread, JNIHandles::resolve(task->method_handle())); | |
|
1939
b7fb5f1e0747
Two new flags: -XX:MaxCompilationID (to enable debugging binary search for problematic method) and -XX:C1XBailoutIsFatal.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1931
diff
changeset
|
1617 int compilable = ciEnv::MethodCompilable_never; |
|
b7fb5f1e0747
Two new flags: -XX:MaxCompilationID (to enable debugging binary search for problematic method) and -XX:C1XBailoutIsFatal.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1931
diff
changeset
|
1618 if (MaxCompilationID == -1 || compile_id <= (uint)MaxCompilationID) { |
|
b7fb5f1e0747
Two new flags: -XX:MaxCompilationID (to enable debugging binary search for problematic method) and -XX:C1XBailoutIsFatal.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1931
diff
changeset
|
1619 compilable = ciEnv::MethodCompilable; |
| 0 | 1620 int system_dictionary_modification_counter; |
| 1621 { | |
| 1622 MutexLocker locker(Compile_lock, thread); | |
| 1623 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
| 1624 } | |
| 1625 | |
|
1406
35069ca331f2
Hooked C1XCompiler class into the system.
Thomas Wuerthinger <thomas.wuerthinger@gmail.com>
parents:
1353
diff
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|
1626 // (tw) Check if we may do this? |
|
1478
5571b97fc1ec
More JNI global handle clean ups.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1462
diff
changeset
|
1627 // NoHandleMark nhm; |
| 0 | 1628 ThreadToNativeFromVM ttn(thread); |
| 1629 | |
| 1630 ciEnv ci_env(task, system_dictionary_modification_counter); | |
| 1631 if (should_break) { | |
| 1632 ci_env.set_break_at_compile(true); | |
| 1633 } | |
| 1634 if (should_log) { | |
| 1635 ci_env.set_log(thread->log()); | |
| 1636 } | |
| 1637 assert(thread->env() == &ci_env, "set by ci_env"); | |
| 1638 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
| 1639 | |
|
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
1640 // Cache Jvmti state |
|
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
1641 ci_env.cache_jvmti_state(); |
|
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
1642 |
|
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
1643 // Cache DTrace flags |
|
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
0
diff
changeset
|
1644 ci_env.cache_dtrace_flags(); |
|
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
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diff
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|
1645 |
| 0 | 1646 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
| 1647 | |
| 1648 TraceTime t1("compilation", &time); | |
| 1649 | |
| 1650 compiler(task->comp_level())->compile_method(&ci_env, target, osr_bci); | |
| 1651 | |
| 1652 if (!ci_env.failing() && task->code() == NULL) { | |
| 1653 //assert(false, "compiler should always document failure"); | |
| 1654 // The compiler elected, without comment, not to register a result. | |
| 1655 // Do not attempt further compilations of this method. | |
|
1964
22ef3370343b
7000349: Tiered reacts incorrectly to C1 compilation failures
iveresov
parents:
1783
diff
changeset
|
1656 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
| 0 | 1657 } |
| 1658 | |
| 1659 if (ci_env.failing()) { | |
| 1660 // Copy this bit to the enclosing block: | |
| 1661 compilable = ci_env.compilable(); | |
| 1662 if (PrintCompilation) { | |
| 1663 const char* reason = ci_env.failure_reason(); | |
| 1664 if (compilable == ciEnv::MethodCompilable_not_at_tier) { | |
| 1665 tty->print_cr("%3d COMPILE SKIPPED: %s (retry at different tier)", compile_id, reason); | |
|
1964
22ef3370343b
7000349: Tiered reacts incorrectly to C1 compilation failures
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1783
diff
changeset
|
1666 } else if (compilable == ciEnv::MethodCompilable_never) { |
| 0 | 1667 tty->print_cr("%3d COMPILE SKIPPED: %s (not retryable)", compile_id, reason); |
| 1668 } else if (compilable == ciEnv::MethodCompilable) { | |
| 1669 tty->print_cr("%3d COMPILE SKIPPED: %s", compile_id, reason); | |
| 1670 } | |
| 1671 } | |
| 1672 } else { | |
| 1673 task->mark_success(); | |
| 1674 task->set_num_inlined_bytecodes(ci_env.num_inlined_bytecodes()); | |
| 1675 } | |
| 1676 } | |
| 1677 pop_jni_handle_block(); | |
| 1678 | |
| 1679 methodHandle method(thread, | |
| 1680 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1681 | |
| 1682 DTRACE_METHOD_COMPILE_END_PROBE(compiler(task->comp_level()), method, task->is_success()); | |
| 1683 | |
| 1684 collect_statistics(thread, time, task); | |
| 1685 | |
| 1686 if (compilable == ciEnv::MethodCompilable_never) { | |
| 1687 if (is_osr) { | |
| 1688 method->set_not_osr_compilable(); | |
| 1689 } else { | |
|
1208
cef333a48af6
6923043: failed nightly tests which use -XX:+PrintCompilation -Xcomp -XX:CompileOnly
kvn
parents:
1202
diff
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|
1690 method->set_not_compilable_quietly(); |
| 0 | 1691 } |
| 1692 } else if (compilable == ciEnv::MethodCompilable_not_at_tier) { | |
|
1208
cef333a48af6
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diff
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|
1693 method->set_not_compilable_quietly(task->comp_level()); |
| 0 | 1694 } |
| 1695 | |
| 1696 // Note that the queued_for_compilation bits are cleared without | |
| 1697 // protection of a mutex. [They were set by the requester thread, | |
| 1698 // when adding the task to the complie queue -- at which time the | |
| 1699 // compile queue lock was held. Subsequently, we acquired the compile | |
| 1700 // queue lock to get this task off the compile queue; thus (to belabour | |
| 1701 // the point somewhat) our clearing of the bits must be occurring | |
| 1702 // only after the setting of the bits. See also 14012000 above. | |
| 1703 method->clear_queued_for_compilation(); | |
| 1704 | |
| 1705 #ifdef ASSERT | |
| 1706 if (CollectedHeap::fired_fake_oom()) { | |
| 1707 // The current compile received a fake OOM during compilation so | |
| 1708 // go ahead and exit the VM since the test apparently succeeded | |
| 1709 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
| 1710 vm_exit(0); | |
| 1711 } | |
| 1712 #endif | |
| 1713 } | |
| 1714 | |
| 1715 // ------------------------------------------------------------------ | |
| 1202 | 1716 // CompileBroker::handle_full_code_cache |
| 1717 // | |
| 1718 // The CodeCache is full. Print out warning and disable compilation or | |
| 1719 // try code cache cleaning so compilation can continue later. | |
| 1720 void CompileBroker::handle_full_code_cache() { | |
| 1721 UseInterpreter = true; | |
| 1722 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
|
1728
a62d332029cf
6976372: # assert(_owner == Thread::current()) failed: invariant
never
parents:
1692
diff
changeset
|
1723 if (xtty != NULL) { |
|
a62d332029cf
6976372: # assert(_owner == Thread::current()) failed: invariant
never
parents:
1692
diff
changeset
|
1724 xtty->begin_elem("code_cache_full"); |
|
a62d332029cf
6976372: # assert(_owner == Thread::current()) failed: invariant
never
parents:
1692
diff
changeset
|
1725 xtty->stamp(); |
|
a62d332029cf
6976372: # assert(_owner == Thread::current()) failed: invariant
never
parents:
1692
diff
changeset
|
1726 xtty->end_elem(); |
| 1202 | 1727 } |
|
1578
ca3dceda776c
6930994: Code cache is full warning should be visible in product
never
parents:
1538
diff
changeset
|
1728 warning("CodeCache is full. Compiler has been disabled."); |
|
ca3dceda776c
6930994: Code cache is full warning should be visible in product
never
parents:
1538
diff
changeset
|
1729 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
|
ca3dceda776c
6930994: Code cache is full warning should be visible in product
never
parents:
1538
diff
changeset
|
1730 #ifndef PRODUCT |
| 1202 | 1731 if (CompileTheWorld || ExitOnFullCodeCache) { |
| 1732 before_exit(JavaThread::current()); | |
| 1733 exit_globals(); // will delete tty | |
| 1734 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
| 1735 } | |
|
1578
ca3dceda776c
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never
parents:
1538
diff
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|
1736 #endif |
| 1202 | 1737 if (UseCodeCacheFlushing) { |
| 1738 NMethodSweeper::handle_full_code_cache(true); | |
| 1739 } else { | |
| 1740 UseCompiler = false; | |
| 1741 AlwaysCompileLoopMethods = false; | |
| 1742 } | |
| 1743 } | |
| 1744 } | |
| 1745 | |
| 1746 // ------------------------------------------------------------------ | |
| 0 | 1747 // CompileBroker::set_last_compile |
| 1748 // | |
| 1749 // Record this compilation for debugging purposes. | |
| 1750 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
| 1751 ResourceMark rm; | |
| 1752 char* method_name = method->name()->as_C_string(); | |
| 1753 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
| 1754 char current_method[CompilerCounters::cmname_buffer_length]; | |
| 1755 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
| 1756 | |
| 1757 if (UsePerfData) { | |
| 1758 const char* class_name = method->method_holder()->klass_part()->name()->as_C_string(); | |
| 1759 | |
| 1760 size_t s1len = strlen(class_name); | |
| 1761 size_t s2len = strlen(method_name); | |
| 1762 | |
| 1763 // check if we need to truncate the string | |
| 1764 if (s1len + s2len + 2 > maxLen) { | |
| 1765 | |
| 1766 // the strategy is to lop off the leading characters of the | |
| 1767 // class name and the trailing characters of the method name. | |
| 1768 | |
| 1769 if (s2len + 2 > maxLen) { | |
| 1770 // lop of the entire class name string, let snprintf handle | |
| 1771 // truncation of the method name. | |
| 1772 class_name += s1len; // null string | |
| 1773 } | |
| 1774 else { | |
| 1775 // lop off the extra characters from the front of the class name | |
| 1776 class_name += ((s1len + s2len + 2) - maxLen); | |
| 1777 } | |
| 1778 } | |
| 1779 | |
| 1780 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
| 1781 } | |
| 1782 | |
| 1783 if (CICountOSR && is_osr) { | |
| 1784 _last_compile_type = osr_compile; | |
| 1785 } else { | |
| 1786 _last_compile_type = normal_compile; | |
| 1787 } | |
| 1788 _last_compile_level = comp_level; | |
| 1789 | |
| 1790 if (UsePerfData) { | |
| 1791 CompilerCounters* counters = thread->counters(); | |
| 1792 counters->set_current_method(current_method); | |
| 1793 counters->set_compile_type((jlong)_last_compile_type); | |
| 1794 } | |
| 1795 } | |
| 1796 | |
| 1797 | |
| 1798 // ------------------------------------------------------------------ | |
| 1799 // CompileBroker::push_jni_handle_block | |
| 1800 // | |
| 1801 // Push on a new block of JNI handles. | |
| 1802 void CompileBroker::push_jni_handle_block() { | |
| 1803 JavaThread* thread = JavaThread::current(); | |
| 1804 | |
| 1805 // Allocate a new block for JNI handles. | |
| 1806 // Inlined code from jni_PushLocalFrame() | |
| 1807 JNIHandleBlock* java_handles = thread->active_handles(); | |
| 1808 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
| 1809 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
| 1810 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
| 1811 thread->set_active_handles(compile_handles); | |
| 1812 } | |
| 1813 | |
| 1814 | |
| 1815 // ------------------------------------------------------------------ | |
| 1816 // CompileBroker::pop_jni_handle_block | |
| 1817 // | |
| 1818 // Pop off the current block of JNI handles. | |
| 1819 void CompileBroker::pop_jni_handle_block() { | |
| 1820 JavaThread* thread = JavaThread::current(); | |
| 1821 | |
| 1822 // Release our JNI handle block | |
| 1823 JNIHandleBlock* compile_handles = thread->active_handles(); | |
| 1824 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
| 1825 thread->set_active_handles(java_handles); | |
| 1826 compile_handles->set_pop_frame_link(NULL); | |
| 1827 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
| 1828 } | |
| 1829 | |
| 1830 | |
| 1831 // ------------------------------------------------------------------ | |
| 1832 // CompileBroker::check_break_at | |
| 1833 // | |
| 1834 // Should the compilation break at the current compilation. | |
| 1835 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
| 1836 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
| 1837 return true; | |
| 1838 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
| 1839 return true; | |
| 1840 } else { | |
| 1841 return (compile_id == CIBreakAt); | |
| 1842 } | |
| 1843 } | |
| 1844 | |
| 1845 // ------------------------------------------------------------------ | |
| 1846 // CompileBroker::collect_statistics | |
| 1847 // | |
| 1848 // Collect statistics about the compilation. | |
| 1849 | |
| 1850 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
| 1851 bool success = task->is_success(); | |
| 1852 methodHandle method (thread, (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1853 uint compile_id = task->compile_id(); | |
| 1854 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
| 1855 nmethod* code = task->code(); | |
| 1856 CompilerCounters* counters = thread->counters(); | |
| 1857 | |
| 1858 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
| 1859 MutexLocker locker(CompileStatistics_lock); | |
| 1860 | |
| 1861 // _perf variables are production performance counters which are | |
| 1862 // updated regardless of the setting of the CITime and CITimeEach flags | |
| 1863 // | |
| 1864 if (!success) { | |
| 1865 _total_bailout_count++; | |
| 1866 if (UsePerfData) { | |
| 1867 _perf_last_failed_method->set_value(counters->current_method()); | |
| 1868 _perf_last_failed_type->set_value(counters->compile_type()); | |
| 1869 _perf_total_bailout_count->inc(); | |
| 1870 } | |
| 1871 } else if (code == NULL) { | |
| 1872 if (UsePerfData) { | |
| 1873 _perf_last_invalidated_method->set_value(counters->current_method()); | |
| 1874 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
| 1875 _perf_total_invalidated_count->inc(); | |
| 1876 } | |
| 1877 _total_invalidated_count++; | |
| 1878 } else { | |
| 1879 // Compilation succeeded | |
| 1880 | |
| 1881 // update compilation ticks - used by the implementation of | |
| 1882 // java.lang.management.CompilationMBean | |
| 1883 _perf_total_compilation->inc(time.ticks()); | |
| 1884 | |
| 1885 if (CITime) { | |
| 1886 _t_total_compilation.add(time); | |
| 1887 if (is_osr) { | |
| 1888 _t_osr_compilation.add(time); | |
| 1889 _sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 1890 } else { | |
| 1891 _t_standard_compilation.add(time); | |
| 1892 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 1893 } | |
| 1894 } | |
| 1895 | |
| 1896 if (UsePerfData) { | |
| 1897 // save the name of the last method compiled | |
| 1898 _perf_last_method->set_value(counters->current_method()); | |
| 1899 _perf_last_compile_type->set_value(counters->compile_type()); | |
| 1900 _perf_last_compile_size->set_value(method->code_size() + | |
| 1901 task->num_inlined_bytecodes()); | |
| 1902 if (is_osr) { | |
| 1903 _perf_osr_compilation->inc(time.ticks()); | |
| 1904 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 1905 } else { | |
| 1906 _perf_standard_compilation->inc(time.ticks()); | |
| 1907 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 1908 } | |
| 1909 } | |
| 1910 | |
| 1911 if (CITimeEach) { | |
| 1912 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
| 1913 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
| 1914 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
| 1915 } | |
| 1916 | |
| 1917 // Collect counts of successful compilations | |
| 1748 | 1918 _sum_nmethod_size += code->total_size(); |
| 1919 _sum_nmethod_code_size += code->insts_size(); | |
| 0 | 1920 _total_compile_count++; |
| 1921 | |
| 1922 if (UsePerfData) { | |
| 1748 | 1923 _perf_sum_nmethod_size->inc( code->total_size()); |
| 1924 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
| 0 | 1925 _perf_total_compile_count->inc(); |
| 1926 } | |
| 1927 | |
| 1928 if (is_osr) { | |
| 1929 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
| 1930 _total_osr_compile_count++; | |
| 1931 } else { | |
| 1932 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
| 1933 _total_standard_compile_count++; | |
| 1934 } | |
| 1935 } | |
| 1936 // set the current method for the thread to null | |
| 1937 if (UsePerfData) counters->set_current_method(""); | |
| 1938 } | |
| 1939 | |
| 1940 | |
| 1941 | |
| 1942 void CompileBroker::print_times() { | |
| 1943 tty->cr(); | |
| 1944 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
| 1945 tty->print_cr("------------------------------------------------"); | |
| 1946 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
| 1947 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
| 1948 tty->print_cr(" Total compilation time : %6.3f s", CompileBroker::_t_total_compilation.seconds()); | |
| 1949 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", | |
| 1950 CompileBroker::_t_standard_compilation.seconds(), | |
| 1951 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count); | |
| 1952 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 | 1953 |
| 1783 | 1954 if (compiler(CompLevel_simple) != NULL) { |
| 1955 compiler(CompLevel_simple)->print_timers(); | |
| 0 | 1956 } |
| 1783 | 1957 if (compiler(CompLevel_full_optimization) != NULL) { |
| 1958 compiler(CompLevel_full_optimization)->print_timers(); | |
| 1959 } | |
| 0 | 1960 tty->cr(); |
| 1961 int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled; | |
| 1962 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); | |
| 1963 tty->print_cr(" Standard compilation : %6d bytes", CompileBroker::_sum_standard_bytes_compiled); | |
| 1964 tty->print_cr(" On stack replacement : %6d bytes", CompileBroker::_sum_osr_bytes_compiled); | |
| 1965 int bps = (int)(tcb / CompileBroker::_t_total_compilation.seconds()); | |
| 1966 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); | |
| 1967 tty->cr(); | |
| 1968 tty->print_cr(" nmethod code size : %6d bytes", CompileBroker::_sum_nmethod_code_size); | |
| 1969 tty->print_cr(" nmethod total size : %6d bytes", CompileBroker::_sum_nmethod_size); | |
| 1970 } | |
| 1971 | |
| 1972 | |
| 1973 // Debugging output for failure | |
| 1974 void CompileBroker::print_last_compile() { | |
| 1975 if ( _last_compile_level != CompLevel_none && | |
| 1976 compiler(_last_compile_level) != NULL && | |
| 1977 _last_method_compiled != NULL && | |
| 1978 _last_compile_type != no_compile) { | |
| 1979 if (_last_compile_type == osr_compile) { | |
| 1980 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
| 1981 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
| 1982 } else { | |
| 1983 tty->print_cr("Last parse: %d+++(%d) %s", | |
| 1984 _compilation_id, _last_compile_level, _last_method_compiled); | |
| 1985 } | |
| 1986 } | |
| 1987 } | |
| 1988 | |
| 1989 | |
| 1990 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
| 1991 #ifndef PRODUCT | |
| 1992 st->print_cr("Compiler thread printing unimplemented."); | |
| 1993 st->cr(); | |
| 1994 #endif | |
| 1995 } |