Mercurial > hg > graal-compiler
annotate src/share/vm/compiler/compileBroker.cpp @ 4559:723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Use the --vm option instead of a special -vm option in the bench command
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Fri, 10 Feb 2012 17:04:03 +0100 |
| parents | 3c21eee8ab4d |
| children | 33df1aeaebbf |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #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" | |
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47 #ifdef GRAAL |
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48 #include "graal/graalCompiler.hpp" |
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49 #endif |
| 1972 | 50 #ifdef COMPILER1 |
| 51 #include "c1/c1_Compiler.hpp" | |
| 52 #endif | |
| 53 #ifdef COMPILER2 | |
| 54 #include "opto/c2compiler.hpp" | |
| 55 #endif | |
| 56 #ifdef SHARK | |
| 57 #include "shark/sharkCompiler.hpp" | |
| 58 #endif | |
| 0 | 59 |
| 60 #ifdef DTRACE_ENABLED | |
| 61 | |
| 62 // Only bother with this argument setup if dtrace is available | |
| 63 | |
| 4006 | 64 #ifndef USDT2 |
| 0 | 65 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, |
| 66 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
| 67 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
| 68 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
| 69 | |
| 70 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 71 { \ | |
| 72 char* comp_name = (char*)(compiler)->name(); \ | |
|
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73 Symbol* klass_name = (method)->klass_name(); \ |
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74 Symbol* name = (method)->name(); \ |
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75 Symbol* signature = (method)->signature(); \ |
| 0 | 76 HS_DTRACE_PROBE8(hotspot, method__compile__begin, \ |
| 77 comp_name, strlen(comp_name), \ | |
| 78 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 79 name->bytes(), name->utf8_length(), \ | |
| 80 signature->bytes(), signature->utf8_length()); \ | |
| 81 } | |
| 82 | |
| 83 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 84 { \ | |
| 85 char* comp_name = (char*)(compiler)->name(); \ | |
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86 Symbol* klass_name = (method)->klass_name(); \ |
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87 Symbol* name = (method)->name(); \ |
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88 Symbol* signature = (method)->signature(); \ |
| 0 | 89 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ |
| 90 comp_name, strlen(comp_name), \ | |
| 91 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 92 name->bytes(), name->utf8_length(), \ | |
| 93 signature->bytes(), signature->utf8_length(), (success)); \ | |
| 94 } | |
| 95 | |
| 4006 | 96 #else /* USDT2 */ |
| 97 | |
| 98 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 99 { \ | |
| 100 char* comp_name = (char*)(compiler)->name(); \ | |
| 101 Symbol* klass_name = (method)->klass_name(); \ | |
| 102 Symbol* name = (method)->name(); \ | |
| 103 Symbol* signature = (method)->signature(); \ | |
| 104 HOTSPOT_METHOD_COMPILE_BEGIN( \ | |
| 105 comp_name, strlen(comp_name), \ | |
| 106 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 107 (char *) name->bytes(), name->utf8_length(), \ | |
| 108 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 109 } | |
| 110 | |
| 111 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 112 { \ | |
| 113 char* comp_name = (char*)(compiler)->name(); \ | |
| 114 Symbol* klass_name = (method)->klass_name(); \ | |
| 115 Symbol* name = (method)->name(); \ | |
| 116 Symbol* signature = (method)->signature(); \ | |
| 117 HOTSPOT_METHOD_COMPILE_END( \ | |
| 118 comp_name, strlen(comp_name), \ | |
| 119 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 120 (char *) name->bytes(), name->utf8_length(), \ | |
| 121 (char *) signature->bytes(), signature->utf8_length(), (success)); \ | |
| 122 } | |
| 123 #endif /* USDT2 */ | |
| 124 | |
| 0 | 125 #else // ndef DTRACE_ENABLED |
| 126 | |
| 127 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) | |
| 128 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) | |
| 129 | |
| 130 #endif // ndef DTRACE_ENABLED | |
| 131 | |
| 132 bool CompileBroker::_initialized = false; | |
| 133 volatile bool CompileBroker::_should_block = false; | |
| 1202 | 134 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
| 0 | 135 |
| 136 // The installed compiler(s) | |
| 137 AbstractCompiler* CompileBroker::_compilers[2]; | |
| 138 | |
| 139 // These counters are used for assigning id's to each compilation | |
| 140 uint CompileBroker::_compilation_id = 0; | |
| 141 uint CompileBroker::_osr_compilation_id = 0; | |
| 142 | |
| 143 // Debugging information | |
| 144 int CompileBroker::_last_compile_type = no_compile; | |
| 145 int CompileBroker::_last_compile_level = CompLevel_none; | |
| 146 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
| 147 | |
| 148 // Performance counters | |
| 149 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
| 150 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
| 151 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
| 152 | |
| 153 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
| 154 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
| 155 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
| 156 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
| 157 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
| 158 | |
| 159 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
| 160 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
| 161 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
| 162 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
| 163 | |
| 164 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
| 165 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
| 166 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
| 167 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
| 168 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
| 169 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
| 170 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
| 171 | |
| 172 // Timers and counters for generating statistics | |
| 173 elapsedTimer CompileBroker::_t_total_compilation; | |
| 174 elapsedTimer CompileBroker::_t_osr_compilation; | |
| 175 elapsedTimer CompileBroker::_t_standard_compilation; | |
| 176 | |
| 177 int CompileBroker::_total_bailout_count = 0; | |
| 178 int CompileBroker::_total_invalidated_count = 0; | |
| 179 int CompileBroker::_total_compile_count = 0; | |
| 180 int CompileBroker::_total_osr_compile_count = 0; | |
| 181 int CompileBroker::_total_standard_compile_count = 0; | |
| 182 | |
| 183 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
| 184 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
| 185 int CompileBroker::_sum_nmethod_size = 0; | |
| 186 int CompileBroker::_sum_nmethod_code_size = 0; | |
| 187 | |
| 1783 | 188 CompileQueue* CompileBroker::_c2_method_queue = NULL; |
| 189 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
| 0 | 190 CompileTask* CompileBroker::_task_free_list = NULL; |
| 191 | |
| 192 GrowableArray<CompilerThread*>* CompileBroker::_method_threads = NULL; | |
| 193 | |
| 194 | |
| 195 CompileTaskWrapper::CompileTaskWrapper(CompileTask* task) { | |
| 196 CompilerThread* thread = CompilerThread::current(); | |
| 197 thread->set_task(task); | |
| 198 CompileLog* log = thread->log(); | |
| 199 if (log != NULL) task->log_task_start(log); | |
| 200 } | |
| 201 | |
| 202 CompileTaskWrapper::~CompileTaskWrapper() { | |
| 203 CompilerThread* thread = CompilerThread::current(); | |
| 204 CompileTask* task = thread->task(); | |
| 205 CompileLog* log = thread->log(); | |
| 206 if (log != NULL) task->log_task_done(log); | |
| 207 thread->set_task(NULL); | |
| 208 task->set_code_handle(NULL); | |
| 209 DEBUG_ONLY(thread->set_env((ciEnv*)badAddress)); | |
| 210 if (task->is_blocking()) { | |
| 211 MutexLocker notifier(task->lock(), thread); | |
| 212 task->mark_complete(); | |
| 213 // Notify the waiting thread that the compilation has completed. | |
| 214 task->lock()->notify_all(); | |
| 215 } else { | |
| 216 task->mark_complete(); | |
| 217 | |
| 218 // By convention, the compiling thread is responsible for | |
| 219 // recycling a non-blocking CompileTask. | |
| 220 CompileBroker::free_task(task); | |
| 221 } | |
| 222 } | |
| 223 | |
| 224 | |
| 225 // ------------------------------------------------------------------ | |
| 226 // CompileTask::initialize | |
| 227 void CompileTask::initialize(int compile_id, | |
| 228 methodHandle method, | |
| 229 int osr_bci, | |
| 230 int comp_level, | |
| 231 methodHandle hot_method, | |
| 232 int hot_count, | |
| 233 const char* comment, | |
| 234 bool is_blocking) { | |
| 235 assert(!_lock->is_locked(), "bad locking"); | |
| 236 | |
| 237 _compile_id = compile_id; | |
| 238 _method = JNIHandles::make_global(method); | |
| 239 _osr_bci = osr_bci; | |
| 240 _is_blocking = is_blocking; | |
| 241 _comp_level = comp_level; | |
| 242 _num_inlined_bytecodes = 0; | |
| 243 | |
| 244 _is_complete = false; | |
| 245 _is_success = false; | |
| 246 _code_handle = NULL; | |
| 247 | |
| 248 _hot_method = NULL; | |
| 249 _hot_count = hot_count; | |
| 250 _time_queued = 0; // tidy | |
| 251 _comment = comment; | |
| 252 | |
| 253 if (LogCompilation) { | |
| 254 _time_queued = os::elapsed_counter(); | |
| 255 if (hot_method.not_null()) { | |
| 256 if (hot_method == method) { | |
| 257 _hot_method = _method; | |
| 258 } else { | |
| 259 _hot_method = JNIHandles::make_global(hot_method); | |
| 260 } | |
| 261 } | |
| 262 } | |
| 263 | |
| 264 _next = NULL; | |
| 265 } | |
| 266 | |
| 267 // ------------------------------------------------------------------ | |
| 268 // CompileTask::code/set_code | |
| 269 nmethod* CompileTask::code() const { | |
| 270 if (_code_handle == NULL) return NULL; | |
| 271 return _code_handle->code(); | |
| 272 } | |
| 273 void CompileTask::set_code(nmethod* nm) { | |
| 274 if (_code_handle == NULL && nm == NULL) return; | |
| 275 guarantee(_code_handle != NULL, ""); | |
| 276 _code_handle->set_code(nm); | |
| 277 if (nm == NULL) _code_handle = NULL; // drop the handle also | |
| 278 } | |
| 279 | |
| 280 // ------------------------------------------------------------------ | |
| 281 // CompileTask::free | |
| 282 void CompileTask::free() { | |
| 283 set_code(NULL); | |
| 284 assert(!_lock->is_locked(), "Should not be locked when freed"); | |
| 285 if (_hot_method != NULL && _hot_method != _method) { | |
| 286 JNIHandles::destroy_global(_hot_method); | |
| 287 } | |
| 288 JNIHandles::destroy_global(_method); | |
| 289 } | |
| 290 | |
| 291 | |
| 292 // ------------------------------------------------------------------ | |
| 293 // CompileTask::print | |
| 294 void CompileTask::print() { | |
| 295 tty->print("<CompileTask compile_id=%d ", _compile_id); | |
| 296 tty->print("method="); | |
| 297 ((methodOop)JNIHandles::resolve(_method))->print_name(tty); | |
| 298 tty->print_cr(" osr_bci=%d is_blocking=%s is_complete=%s is_success=%s>", | |
| 299 _osr_bci, bool_to_str(_is_blocking), | |
| 300 bool_to_str(_is_complete), bool_to_str(_is_success)); | |
| 301 } | |
| 302 | |
| 1783 | 303 |
| 0 | 304 // ------------------------------------------------------------------ |
| 305 // CompileTask::print_line_on_error | |
| 306 // | |
| 307 // This function is called by fatal error handler when the thread | |
| 308 // causing troubles is a compiler thread. | |
| 309 // | |
| 310 // Do not grab any lock, do not allocate memory. | |
| 311 // | |
| 312 // Otherwise it's the same as CompileTask::print_line() | |
| 313 // | |
| 314 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) { | |
| 315 // print compiler name | |
| 316 st->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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317 print_compilation(st); |
| 0 | 318 } |
| 319 | |
| 320 // ------------------------------------------------------------------ | |
| 321 // CompileTask::print_line | |
| 322 void CompileTask::print_line() { | |
| 323 ttyLocker ttyl; // keep the following output all in one block | |
| 324 // print compiler name if requested | |
| 325 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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326 print_compilation(); |
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327 } |
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328 |
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329 |
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330 // ------------------------------------------------------------------ |
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331 // CompileTask::print_compilation_impl |
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332 void CompileTask::print_compilation_impl(outputStream* st, methodOop method, int compile_id, int comp_level, bool is_osr_method, int osr_bci, bool is_blocking, const char* msg) { |
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333 st->print("%7d ", (int) st->time_stamp().milliseconds()); // print timestamp |
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334 st->print("%4d ", compile_id); // print compilation number |
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335 |
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336 // For unloaded methods the transition to zombie occurs after the |
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337 // method is cleared so it's impossible to report accurate |
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338 // information for that case. |
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339 bool is_synchronized = false; |
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340 bool has_exception_handler = false; |
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341 bool is_native = false; |
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342 if (method != NULL) { |
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343 is_synchronized = method->is_synchronized(); |
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344 has_exception_handler = method->has_exception_handler(); |
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345 is_native = method->is_native(); |
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346 } |
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347 // method attributes |
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348 const char compile_type = is_osr_method ? '%' : ' '; |
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349 const char sync_char = is_synchronized ? 's' : ' '; |
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350 const char exception_char = has_exception_handler ? '!' : ' '; |
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351 const char blocking_char = is_blocking ? 'b' : ' '; |
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352 const char native_char = is_native ? 'n' : ' '; |
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353 |
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354 // print method attributes |
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355 st->print("%c%c%c%c%c ", compile_type, sync_char, exception_char, blocking_char, native_char); |
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356 |
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357 if (TieredCompilation) { |
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358 if (comp_level != -1) st->print("%d ", comp_level); |
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359 else st->print("- "); |
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360 } |
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361 st->print(" "); // more indent |
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362 |
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363 if (method == NULL) { |
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364 st->print("(method)"); |
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365 } else { |
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366 method->print_short_name(st); |
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367 if (is_osr_method) { |
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368 st->print(" @ %d", osr_bci); |
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369 } |
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370 st->print(" (%d bytes)", method->code_size()); |
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371 } |
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372 |
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373 if (msg != NULL) { |
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374 st->print(" %s", msg); |
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375 } |
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376 st->cr(); |
| 0 | 377 } |
| 378 | |
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379 // ------------------------------------------------------------------ |
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380 // CompileTask::print_inlining |
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381 void CompileTask::print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg) { |
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382 // 1234567 |
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383 st->print(" "); // print timestamp |
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384 // 1234 |
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385 st->print(" "); // print compilation number |
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386 |
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387 // method attributes |
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388 const char sync_char = method->is_synchronized() ? 's' : ' '; |
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389 const char exception_char = method->has_exception_handlers() ? '!' : ' '; |
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390 const char monitors_char = method->has_monitor_bytecodes() ? 'm' : ' '; |
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391 |
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392 // print method attributes |
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393 st->print(" %c%c%c ", sync_char, exception_char, monitors_char); |
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394 |
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395 if (TieredCompilation) { |
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396 st->print(" "); |
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397 } |
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398 st->print(" "); // more indent |
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399 st->print(" "); // initial inlining indent |
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400 |
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401 for (int i = 0; i < inline_level; i++) st->print(" "); |
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402 |
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403 st->print("@ %d ", bci); // print bci |
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404 method->print_short_name(st); |
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405 st->print(" (%d bytes)", method->code_size()); |
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406 |
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407 if (msg != NULL) { |
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408 st->print(" %s", msg); |
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409 } |
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410 st->cr(); |
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411 } |
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412 |
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413 // ------------------------------------------------------------------ |
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414 // CompileTask::print_inline_indent |
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415 void CompileTask::print_inline_indent(int inline_level, outputStream* st) { |
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416 // 1234567 |
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417 st->print(" "); // print timestamp |
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418 // 1234 |
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419 st->print(" "); // print compilation number |
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420 // %s!bn |
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421 st->print(" "); // print method attributes |
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422 if (TieredCompilation) { |
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423 st->print(" "); |
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424 } |
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425 st->print(" "); // more indent |
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426 st->print(" "); // initial inlining indent |
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427 for (int i = 0; i < inline_level; i++) st->print(" "); |
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428 } |
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429 |
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430 // ------------------------------------------------------------------ |
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431 // CompileTask::print_compilation |
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432 void CompileTask::print_compilation(outputStream* st) { |
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433 oop rem = JNIHandles::resolve(method_handle()); |
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434 assert(rem != NULL && rem->is_method(), "must be"); |
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435 methodOop method = (methodOop) rem; |
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436 bool is_osr_method = osr_bci() != InvocationEntryBci; |
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437 print_compilation_impl(st, method, compile_id(), comp_level(), is_osr_method, osr_bci(), is_blocking()); |
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438 } |
| 0 | 439 |
| 440 // ------------------------------------------------------------------ | |
| 441 // CompileTask::log_task | |
| 442 void CompileTask::log_task(xmlStream* log) { | |
| 443 Thread* thread = Thread::current(); | |
| 444 methodHandle method(thread, | |
| 445 (methodOop)JNIHandles::resolve(method_handle())); | |
| 446 ResourceMark rm(thread); | |
| 447 | |
| 448 // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'> | |
| 449 if (_compile_id != 0) log->print(" compile_id='%d'", _compile_id); | |
| 450 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 451 log->print(" compile_kind='osr'"); // same as nmethod::compile_kind | |
| 452 } // else compile_kind='c2c' | |
| 453 if (!method.is_null()) log->method(method); | |
| 454 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 455 log->print(" osr_bci='%d'", _osr_bci); | |
| 456 } | |
| 457 if (_comp_level != CompLevel_highest_tier) { | |
| 458 log->print(" level='%d'", _comp_level); | |
| 459 } | |
| 460 if (_is_blocking) { | |
| 461 log->print(" blocking='1'"); | |
| 462 } | |
| 463 log->stamp(); | |
| 464 } | |
| 465 | |
| 466 | |
| 467 // ------------------------------------------------------------------ | |
| 468 // CompileTask::log_task_queued | |
| 469 void CompileTask::log_task_queued() { | |
| 470 Thread* thread = Thread::current(); | |
| 471 ttyLocker ttyl; | |
| 472 ResourceMark rm(thread); | |
| 473 | |
| 474 xtty->begin_elem("task_queued"); | |
| 475 log_task(xtty); | |
| 476 if (_comment != NULL) { | |
| 477 xtty->print(" comment='%s'", _comment); | |
| 478 } | |
| 479 if (_hot_method != NULL) { | |
| 480 methodHandle hot(thread, | |
| 481 (methodOop)JNIHandles::resolve(_hot_method)); | |
| 482 methodHandle method(thread, | |
| 483 (methodOop)JNIHandles::resolve(_method)); | |
| 484 if (hot() != method()) { | |
| 485 xtty->method(hot); | |
| 486 } | |
| 487 } | |
| 488 if (_hot_count != 0) { | |
| 489 xtty->print(" hot_count='%d'", _hot_count); | |
| 490 } | |
| 491 xtty->end_elem(); | |
| 492 } | |
| 493 | |
| 494 | |
| 495 // ------------------------------------------------------------------ | |
| 496 // CompileTask::log_task_start | |
| 497 void CompileTask::log_task_start(CompileLog* log) { | |
| 498 log->begin_head("task"); | |
| 499 log_task(log); | |
| 500 log->end_head(); | |
| 501 } | |
| 502 | |
| 503 | |
| 504 // ------------------------------------------------------------------ | |
| 505 // CompileTask::log_task_done | |
| 506 void CompileTask::log_task_done(CompileLog* log) { | |
| 507 Thread* thread = Thread::current(); | |
| 508 methodHandle method(thread, | |
| 509 (methodOop)JNIHandles::resolve(method_handle())); | |
| 510 ResourceMark rm(thread); | |
| 511 | |
| 512 // <task_done ... stamp='1.234'> </task> | |
| 513 nmethod* nm = code(); | |
| 514 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
| 1748 | 515 _is_success, nm == NULL ? 0 : nm->content_size(), |
| 0 | 516 method->invocation_count()); |
| 517 int bec = method->backedge_count(); | |
| 518 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
| 519 // Note: "_is_complete" is about to be set, but is not. | |
| 520 if (_num_inlined_bytecodes != 0) { | |
| 521 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
| 522 } | |
| 523 log->stamp(); | |
| 524 log->end_elem(); | |
| 525 log->tail("task"); | |
| 526 log->clear_identities(); // next task will have different CI | |
| 527 if (log->unflushed_count() > 2000) { | |
| 528 log->flush(); | |
| 529 } | |
| 530 log->mark_file_end(); | |
| 531 } | |
| 532 | |
| 533 | |
| 534 | |
| 535 // ------------------------------------------------------------------ | |
| 536 // CompileQueue::add | |
| 537 // | |
| 538 // Add a CompileTask to a CompileQueue | |
| 539 void CompileQueue::add(CompileTask* task) { | |
| 540 assert(lock()->owned_by_self(), "must own lock"); | |
| 541 | |
| 542 task->set_next(NULL); | |
| 1783 | 543 task->set_prev(NULL); |
| 0 | 544 |
| 545 if (_last == NULL) { | |
| 546 // The compile queue is empty. | |
| 547 assert(_first == NULL, "queue is empty"); | |
| 548 _first = task; | |
| 549 _last = task; | |
| 550 } else { | |
| 551 // Append the task to the queue. | |
| 552 assert(_last->next() == NULL, "not last"); | |
| 553 _last->set_next(task); | |
| 1783 | 554 task->set_prev(_last); |
| 0 | 555 _last = task; |
| 556 } | |
| 1783 | 557 ++_size; |
| 0 | 558 |
| 559 // Mark the method as being in the compile queue. | |
| 560 ((methodOop)JNIHandles::resolve(task->method_handle()))->set_queued_for_compilation(); | |
| 561 | |
| 562 if (CIPrintCompileQueue) { | |
| 563 print(); | |
| 564 } | |
| 565 | |
| 566 if (LogCompilation && xtty != NULL) { | |
| 567 task->log_task_queued(); | |
| 568 } | |
| 569 | |
| 570 // Notify CompilerThreads that a task is available. | |
| 1783 | 571 lock()->notify_all(); |
| 0 | 572 } |
| 573 | |
| 574 // ------------------------------------------------------------------ | |
| 575 // CompileQueue::get | |
| 576 // | |
| 577 // Get the next CompileTask from a CompileQueue | |
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578 CompileTask* CompileQueue::get() { |
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579 NMethodSweeper::possibly_sweep(); |
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580 |
| 0 | 581 MutexLocker locker(lock()); |
| 582 // Wait for an available CompileTask. | |
| 583 while (_first == NULL) { | |
| 584 // There is no work to be done right now. Wait. | |
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585 if (UseCodeCacheFlushing && (!CompileBroker::should_compile_new_jobs() || CodeCache::needs_flushing())) { |
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586 // During the emergency sweeping periods, wake up and sweep occasionally |
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587 bool timedout = lock()->wait(!Mutex::_no_safepoint_check_flag, NmethodSweepCheckInterval*1000); |
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588 if (timedout) { |
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589 MutexUnlocker ul(lock()); |
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590 // When otherwise not busy, run nmethod sweeping |
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591 NMethodSweeper::possibly_sweep(); |
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592 } |
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593 } else { |
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594 // During normal operation no need to wake up on timer |
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595 lock()->wait(); |
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596 } |
| 0 | 597 } |
| 1783 | 598 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
| 599 remove(task); | |
| 600 return task; | |
| 601 } | |
| 0 | 602 |
| 1783 | 603 void CompileQueue::remove(CompileTask* task) |
| 604 { | |
| 605 assert(lock()->owned_by_self(), "must own lock"); | |
| 606 if (task->prev() != NULL) { | |
| 607 task->prev()->set_next(task->next()); | |
| 608 } else { | |
| 609 // max is the first element | |
| 610 assert(task == _first, "Sanity"); | |
| 611 _first = task->next(); | |
| 0 | 612 } |
| 613 | |
| 1783 | 614 if (task->next() != NULL) { |
| 615 task->next()->set_prev(task->prev()); | |
| 616 } else { | |
| 617 // max is the last element | |
| 618 assert(task == _last, "Sanity"); | |
| 619 _last = task->prev(); | |
| 620 } | |
| 621 --_size; | |
| 0 | 622 } |
| 623 | |
| 624 // ------------------------------------------------------------------ | |
| 625 // CompileQueue::print | |
| 626 void CompileQueue::print() { | |
| 627 tty->print_cr("Contents of %s", name()); | |
| 628 tty->print_cr("----------------------"); | |
| 629 CompileTask* task = _first; | |
| 630 while (task != NULL) { | |
| 631 task->print_line(); | |
| 632 task = task->next(); | |
| 633 } | |
| 634 tty->print_cr("----------------------"); | |
| 635 } | |
| 636 | |
| 637 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
| 638 | |
| 639 _current_method[0] = '\0'; | |
| 640 _compile_type = CompileBroker::no_compile; | |
| 641 | |
| 642 if (UsePerfData) { | |
| 643 ResourceMark rm; | |
| 644 | |
| 645 // create the thread instance name space string - don't create an | |
| 646 // instance subspace if instance is -1 - keeps the adapterThread | |
| 647 // counters from having a ".0" namespace. | |
| 648 const char* thread_i = (instance == -1) ? thread_name : | |
| 649 PerfDataManager::name_space(thread_name, instance); | |
| 650 | |
| 651 | |
| 652 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
| 653 _perf_current_method = | |
| 654 PerfDataManager::create_string_variable(SUN_CI, name, | |
| 655 cmname_buffer_length, | |
| 656 _current_method, CHECK); | |
| 657 | |
| 658 name = PerfDataManager::counter_name(thread_i, "type"); | |
| 659 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
| 660 PerfData::U_None, | |
| 661 (jlong)_compile_type, | |
| 662 CHECK); | |
| 663 | |
| 664 name = PerfDataManager::counter_name(thread_i, "time"); | |
| 665 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
| 666 PerfData::U_Ticks, CHECK); | |
| 667 | |
| 668 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
| 669 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
| 670 PerfData::U_Events, CHECK); | |
| 671 } | |
| 672 } | |
| 673 | |
| 674 // ------------------------------------------------------------------ | |
| 675 // CompileBroker::compilation_init | |
| 676 // | |
| 677 // Initialize the Compilation object | |
| 678 void CompileBroker::compilation_init() { | |
| 679 _last_method_compiled[0] = '\0'; | |
| 680 | |
| 1970 | 681 #ifndef SHARK |
| 0 | 682 // Set the interface to the current compiler(s). |
| 1783 | 683 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
| 684 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
|
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685 #ifdef GRAAL |
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686 _compilers[0] = new GraalCompiler(); |
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687 #else |
| 0 | 688 #ifdef COMPILER1 |
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689 if (c1_count > 0) { |
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690 _compilers[0] = new Compiler(); |
| 1783 | 691 } |
| 0 | 692 #endif // COMPILER1 |
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693 #endif |
| 0 | 694 |
| 695 #ifdef COMPILER2 | |
| 1783 | 696 if (c2_count > 0) { |
| 697 _compilers[1] = new C2Compiler(); | |
| 698 } | |
| 0 | 699 #endif // COMPILER2 |
| 700 | |
| 1970 | 701 #else // SHARK |
| 702 int c1_count = 0; | |
| 703 int c2_count = 1; | |
| 704 | |
| 705 _compilers[1] = new SharkCompiler(); | |
| 706 #endif // SHARK | |
| 1692 | 707 |
| 0 | 708 // Initialize the CompileTask free list |
| 709 _task_free_list = NULL; | |
| 710 | |
| 711 // Start the CompilerThreads | |
| 1783 | 712 init_compiler_threads(c1_count, c2_count); |
| 0 | 713 // totalTime performance counter is always created as it is required |
| 714 // by the implementation of java.lang.management.CompilationMBean. | |
| 715 { | |
| 716 EXCEPTION_MARK; | |
| 717 _perf_total_compilation = | |
| 718 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
| 719 PerfData::U_Ticks, CHECK); | |
| 720 } | |
| 721 | |
| 722 | |
| 723 if (UsePerfData) { | |
| 724 | |
| 725 EXCEPTION_MARK; | |
| 726 | |
| 727 // create the jvmstat performance counters | |
| 728 _perf_osr_compilation = | |
| 729 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
| 730 PerfData::U_Ticks, CHECK); | |
| 731 | |
| 732 _perf_standard_compilation = | |
| 733 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
| 734 PerfData::U_Ticks, CHECK); | |
| 735 | |
| 736 _perf_total_bailout_count = | |
| 737 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
| 738 PerfData::U_Events, CHECK); | |
| 739 | |
| 740 _perf_total_invalidated_count = | |
| 741 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
| 742 PerfData::U_Events, CHECK); | |
| 743 | |
| 744 _perf_total_compile_count = | |
| 745 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
| 746 PerfData::U_Events, CHECK); | |
| 747 _perf_total_osr_compile_count = | |
| 748 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
| 749 PerfData::U_Events, CHECK); | |
| 750 | |
| 751 _perf_total_standard_compile_count = | |
| 752 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
| 753 PerfData::U_Events, CHECK); | |
| 754 | |
| 755 _perf_sum_osr_bytes_compiled = | |
| 756 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
| 757 PerfData::U_Bytes, CHECK); | |
| 758 | |
| 759 _perf_sum_standard_bytes_compiled = | |
| 760 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
| 761 PerfData::U_Bytes, CHECK); | |
| 762 | |
| 763 _perf_sum_nmethod_size = | |
| 764 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
| 765 PerfData::U_Bytes, CHECK); | |
| 766 | |
| 767 _perf_sum_nmethod_code_size = | |
| 768 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
| 769 PerfData::U_Bytes, CHECK); | |
| 770 | |
| 771 _perf_last_method = | |
| 772 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
| 773 CompilerCounters::cmname_buffer_length, | |
| 774 "", CHECK); | |
| 775 | |
| 776 _perf_last_failed_method = | |
| 777 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
| 778 CompilerCounters::cmname_buffer_length, | |
| 779 "", CHECK); | |
| 780 | |
| 781 _perf_last_invalidated_method = | |
| 782 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
| 783 CompilerCounters::cmname_buffer_length, | |
| 784 "", CHECK); | |
| 785 | |
| 786 _perf_last_compile_type = | |
| 787 PerfDataManager::create_variable(SUN_CI, "lastType", | |
| 788 PerfData::U_None, | |
| 789 (jlong)CompileBroker::no_compile, | |
| 790 CHECK); | |
| 791 | |
| 792 _perf_last_compile_size = | |
| 793 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
| 794 PerfData::U_Bytes, | |
| 795 (jlong)CompileBroker::no_compile, | |
| 796 CHECK); | |
| 797 | |
| 798 | |
| 799 _perf_last_failed_type = | |
| 800 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
| 801 PerfData::U_None, | |
| 802 (jlong)CompileBroker::no_compile, | |
| 803 CHECK); | |
| 804 | |
| 805 _perf_last_invalidated_type = | |
| 806 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
| 807 PerfData::U_None, | |
| 808 (jlong)CompileBroker::no_compile, | |
| 809 CHECK); | |
| 810 } | |
| 811 | |
| 812 _initialized = true; | |
| 813 } | |
| 814 | |
| 815 | |
| 816 | |
| 817 // ------------------------------------------------------------------ | |
| 818 // CompileBroker::make_compiler_thread | |
| 819 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS) { | |
| 820 CompilerThread* compiler_thread = NULL; | |
| 821 | |
| 822 klassOop k = | |
|
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823 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_Thread(), |
| 0 | 824 true, CHECK_0); |
| 825 instanceKlassHandle klass (THREAD, k); | |
| 826 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
| 827 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
| 828 | |
| 829 // Initialize thread_oop to put it into the system threadGroup | |
| 830 Handle thread_group (THREAD, Universe::system_thread_group()); | |
| 831 JavaValue result(T_VOID); | |
| 832 JavaCalls::call_special(&result, thread_oop, | |
| 833 klass, | |
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834 vmSymbols::object_initializer_name(), |
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835 vmSymbols::threadgroup_string_void_signature(), |
| 0 | 836 thread_group, |
| 837 string, | |
| 838 CHECK_0); | |
| 839 | |
| 840 { | |
| 841 MutexLocker mu(Threads_lock, THREAD); | |
| 842 compiler_thread = new CompilerThread(queue, counters); | |
| 843 // At this point the new CompilerThread data-races with this startup | |
| 844 // thread (which I believe is the primoridal thread and NOT the VM | |
| 845 // thread). This means Java bytecodes being executed at startup can | |
| 846 // queue compile jobs which will run at whatever default priority the | |
| 847 // newly created CompilerThread runs at. | |
| 848 | |
| 849 | |
| 850 // At this point it may be possible that no osthread was created for the | |
| 851 // JavaThread due to lack of memory. We would have to throw an exception | |
| 852 // in that case. However, since this must work and we do not allow | |
| 853 // exceptions anyway, check and abort if this fails. | |
| 854 | |
| 855 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
| 856 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
| 857 "unable to create new native thread"); | |
| 858 } | |
| 859 | |
| 860 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
| 861 | |
| 862 // Note that this only sets the JavaThread _priority field, which by | |
| 863 // definition is limited to Java priorities and not OS priorities. | |
| 864 // The os-priority is set in the CompilerThread startup code itself | |
| 865 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); | |
| 866 // CLEANUP PRIORITIES: This -if- statement hids a bug whereby the compiler | |
| 867 // threads never have their OS priority set. The assumption here is to | |
| 868 // enable the Performance group to do flag tuning, figure out a suitable | |
| 869 // CompilerThreadPriority, and then remove this 'if' statement (and | |
| 870 // comment) and unconditionally set the priority. | |
| 871 | |
| 872 // Compiler Threads should be at the highest Priority | |
| 873 if ( CompilerThreadPriority != -1 ) | |
| 874 os::set_native_priority( compiler_thread, CompilerThreadPriority ); | |
| 875 else | |
| 876 os::set_native_priority( compiler_thread, os::java_to_os_priority[NearMaxPriority]); | |
| 877 | |
| 878 // Note that I cannot call os::set_priority because it expects Java | |
| 879 // priorities and I am *explicitly* using OS priorities so that it's | |
| 880 // possible to set the compiler thread priority higher than any Java | |
| 881 // thread. | |
| 882 | |
| 883 java_lang_Thread::set_daemon(thread_oop()); | |
| 884 | |
| 885 compiler_thread->set_threadObj(thread_oop()); | |
| 886 Threads::add(compiler_thread); | |
| 887 Thread::start(compiler_thread); | |
| 888 } | |
| 889 // Let go of Threads_lock before yielding | |
| 890 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
| 891 | |
| 892 return compiler_thread; | |
| 893 } | |
| 894 | |
| 895 | |
| 896 // ------------------------------------------------------------------ | |
| 897 // CompileBroker::init_compiler_threads | |
| 898 // | |
| 899 // Initialize the compilation queue | |
| 1783 | 900 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
| 0 | 901 EXCEPTION_MARK; |
| 2447 | 902 #if !defined(ZERO) && !defined(SHARK) |
| 1783 | 903 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
| 2447 | 904 #endif // !ZERO && !SHARK |
| 1783 | 905 if (c2_compiler_count > 0) { |
| 906 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
| 907 } | |
| 908 if (c1_compiler_count > 0) { | |
| 909 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
| 910 } | |
| 0 | 911 |
| 1783 | 912 int compiler_count = c1_compiler_count + c2_compiler_count; |
| 913 | |
| 0 | 914 _method_threads = |
| 915 new (ResourceObj::C_HEAP) GrowableArray<CompilerThread*>(compiler_count, true); | |
| 916 | |
| 917 char name_buffer[256]; | |
| 1783 | 918 for (int i = 0; i < c2_compiler_count; i++) { |
| 0 | 919 // Create a name for our thread. |
| 1783 | 920 sprintf(name_buffer, "C2 CompilerThread%d", i); |
| 0 | 921 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
| 1783 | 922 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, CHECK); |
| 0 | 923 _method_threads->append(new_thread); |
| 924 } | |
| 1783 | 925 |
| 926 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
| 927 // Create a name for our thread. | |
| 928 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
| 929 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
| 930 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, CHECK); | |
| 931 _method_threads->append(new_thread); | |
| 932 } | |
| 933 | |
| 0 | 934 if (UsePerfData) { |
| 935 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, | |
| 936 compiler_count, CHECK); | |
| 937 } | |
| 938 } | |
| 939 | |
| 940 // ------------------------------------------------------------------ | |
| 941 // CompileBroker::is_idle | |
| 942 bool CompileBroker::is_idle() { | |
|
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943 #ifndef GRAAL |
| 1783 | 944 if (_c2_method_queue != NULL && !_c2_method_queue->is_empty()) { |
| 945 return false; | |
| 946 } else if (_c1_method_queue != NULL && !_c1_method_queue->is_empty()) { | |
| 0 | 947 return false; |
| 948 } else { | |
| 949 int num_threads = _method_threads->length(); | |
| 950 for (int i=0; i<num_threads; i++) { | |
| 951 if (_method_threads->at(i)->task() != NULL) { | |
| 952 return false; | |
| 953 } | |
| 954 } | |
| 955 } | |
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956 #endif |
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957 // No pending or active compilations. |
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958 return true; |
| 0 | 959 } |
| 960 | |
| 961 | |
| 962 // ------------------------------------------------------------------ | |
| 963 // CompileBroker::compile_method | |
| 964 // | |
| 965 // Request compilation of a method. | |
| 966 void CompileBroker::compile_method_base(methodHandle method, | |
| 967 int osr_bci, | |
| 968 int comp_level, | |
| 969 methodHandle hot_method, | |
| 970 int hot_count, | |
| 971 const char* comment, | |
| 972 TRAPS) { | |
| 973 // do nothing if compiler thread(s) is not available | |
| 974 if (!_initialized ) { | |
| 975 return; | |
| 976 } | |
| 977 | |
| 978 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
| 979 assert(method->method_holder()->klass_part()->oop_is_instance(), | |
| 980 "sanity check"); | |
| 981 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), | |
| 982 "method holder must be initialized"); | |
| 983 | |
| 984 if (CIPrintRequests) { | |
| 985 tty->print("request: "); | |
| 986 method->print_short_name(tty); | |
| 987 if (osr_bci != InvocationEntryBci) { | |
| 988 tty->print(" osr_bci: %d", osr_bci); | |
| 989 } | |
| 990 tty->print(" comment: %s count: %d", comment, hot_count); | |
| 991 if (!hot_method.is_null()) { | |
| 992 tty->print(" hot: "); | |
| 993 if (hot_method() != method()) { | |
| 994 hot_method->print_short_name(tty); | |
| 995 } else { | |
| 996 tty->print("yes"); | |
| 997 } | |
| 998 } | |
| 999 tty->cr(); | |
| 1000 } | |
| 1001 | |
| 1002 // A request has been made for compilation. Before we do any | |
| 1003 // real work, check to see if the method has been compiled | |
| 1004 // in the meantime with a definitive result. | |
| 1005 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1006 return; | |
| 1007 } | |
| 1008 | |
| 2403 | 1009 #ifndef PRODUCT |
| 1010 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) { | |
| 1011 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) { | |
| 1012 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI. | |
| 1013 return; | |
| 1014 } | |
| 1015 } | |
| 1016 #endif | |
| 1783 | 1017 |
| 0 | 1018 // If this method is already in the compile queue, then |
| 1019 // we do not block the current thread. | |
| 1020 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1021 // We may want to decay our counter a bit here to prevent | |
| 1022 // multiple denied requests for compilation. This is an | |
| 1023 // open compilation policy issue. Note: The other possibility, | |
| 1024 // in the case that this is a blocking compile request, is to have | |
| 1025 // all subsequent blocking requesters wait for completion of | |
| 1026 // ongoing compiles. Note that in this case we'll need a protocol | |
| 1027 // for freeing the associated compile tasks. [Or we could have | |
| 1028 // a single static monitor on which all these waiters sleep.] | |
| 1029 return; | |
| 1030 } | |
| 1031 | |
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1032 // If the requesting thread is holding the pending list lock |
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1033 // then we just return. We can't risk blocking while holding |
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1034 // the pending list lock or a 3-way deadlock may occur |
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1035 // between the reference handler thread, a GC (instigated |
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1036 // by a compiler thread), and compiled method registration. |
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1037 if (instanceRefKlass::owns_pending_list_lock(JavaThread::current())) { |
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1038 return; |
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1039 } |
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1040 |
| 0 | 1041 // Outputs from the following MutexLocker block: |
| 1042 CompileTask* task = NULL; | |
| 1043 bool blocking = false; | |
| 1783 | 1044 CompileQueue* queue = compile_queue(comp_level); |
| 0 | 1045 |
| 1046 // Acquire our lock. | |
| 1047 { | |
| 1783 | 1048 MutexLocker locker(queue->lock(), THREAD); |
| 0 | 1049 |
|
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1050 if (JavaThread::current()->is_compiling() && !BackgroundCompilation) { |
|
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1051 #ifdef GRAAL |
|
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1052 TRACE_graal_1("Recursive compile %s!", method->name_and_sig_as_C_string()); |
|
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1053 #endif |
|
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1054 method->set_not_compilable(); |
|
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1055 return; |
|
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|
1056 } |
|
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|
1057 |
| 0 | 1058 // Make sure the method has not slipped into the queues since |
| 1059 // last we checked; note that those checks were "fast bail-outs". | |
| 1060 // Here we need to be more careful, see 14012000 below. | |
| 1061 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1062 return; | |
| 1063 } | |
| 1064 | |
| 1065 // We need to check again to see if the compilation has | |
| 1066 // completed. A previous compilation may have registered | |
| 1067 // some result. | |
| 1068 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1069 return; | |
| 1070 } | |
| 1071 | |
| 1072 // We now know that this compilation is not pending, complete, | |
| 1073 // or prohibited. Assign a compile_id to this compilation | |
| 1074 // and check to see if it is in our [Start..Stop) range. | |
| 1075 uint compile_id = assign_compile_id(method, osr_bci); | |
| 1076 if (compile_id == 0) { | |
| 1077 // The compilation falls outside the allowed range. | |
| 1078 return; | |
| 1079 } | |
| 1080 | |
| 1081 // Should this thread wait for completion of the compile? | |
| 1082 blocking = is_compile_blocking(method, osr_bci); | |
| 1083 | |
| 1084 // We will enter the compilation in the queue. | |
| 1085 // 14012000: Note that this sets the queued_for_compile bits in | |
| 1086 // the target method. We can now reason that a method cannot be | |
| 1087 // queued for compilation more than once, as follows: | |
| 1088 // Before a thread queues a task for compilation, it first acquires | |
| 1089 // the compile queue lock, then checks if the method's queued bits | |
| 1090 // are set or it has already been compiled. Thus there can not be two | |
| 1091 // instances of a compilation task for the same method on the | |
| 1092 // compilation queue. Consider now the case where the compilation | |
| 1093 // thread has already removed a task for that method from the queue | |
| 1094 // and is in the midst of compiling it. In this case, the | |
| 1095 // queued_for_compile bits must be set in the method (and these | |
| 1096 // will be visible to the current thread, since the bits were set | |
| 1097 // under protection of the compile queue lock, which we hold now. | |
| 1098 // When the compilation completes, the compiler thread first sets | |
| 1099 // the compilation result and then clears the queued_for_compile | |
| 1100 // bits. Neither of these actions are protected by a barrier (or done | |
| 1101 // under the protection of a lock), so the only guarantee we have | |
| 1102 // (on machines with TSO (Total Store Order)) is that these values | |
| 1103 // will update in that order. As a result, the only combinations of | |
| 1104 // these bits that the current thread will see are, in temporal order: | |
| 1105 // <RESULT, QUEUE> : | |
| 1106 // <0, 1> : in compile queue, but not yet compiled | |
| 1107 // <1, 1> : compiled but queue bit not cleared | |
| 1108 // <1, 0> : compiled and queue bit cleared | |
| 1109 // Because we first check the queue bits then check the result bits, | |
| 1110 // we are assured that we cannot introduce a duplicate task. | |
| 1111 // Note that if we did the tests in the reverse order (i.e. check | |
| 1112 // result then check queued bit), we could get the result bit before | |
| 1113 // the compilation completed, and the queue bit after the compilation | |
| 1114 // completed, and end up introducing a "duplicate" (redundant) task. | |
| 1115 // In that case, the compiler thread should first check if a method | |
| 1116 // has already been compiled before trying to compile it. | |
| 1117 // NOTE: in the event that there are multiple compiler threads and | |
| 1118 // there is de-optimization/recompilation, things will get hairy, | |
| 1119 // and in that case it's best to protect both the testing (here) of | |
| 1120 // these bits, and their updating (here and elsewhere) under a | |
| 1121 // common lock. | |
|
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1122 #ifndef GRAAL |
|
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1123 task = create_compile_task(queue, |
| 0 | 1124 compile_id, method, |
| 1125 osr_bci, comp_level, | |
| 1126 hot_method, hot_count, comment, | |
|
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|
1127 blocking); |
|
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|
1128 #endif |
| 0 | 1129 } |
| 1130 | |
|
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3c21eee8ab4d
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|
1131 #ifdef GRAAL |
|
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|
1132 if (!JavaThread::current()->is_compiling()) { |
|
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|
1133 method->set_queued_for_compilation(); |
|
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|
1134 GraalCompiler::instance()->compile_method(method, osr_bci, blocking); |
|
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|
1135 } else { |
|
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|
1136 // Recursive compile request => ignore. |
|
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|
1137 } |
|
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|
1138 #endif |
|
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|
1139 #ifndef GRAAL |
|
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|
1140 if (blocking) { |
| 0 | 1141 wait_for_completion(task); |
|
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|
1142 } |
|
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|
1143 #endif |
| 0 | 1144 } |
| 1145 | |
| 1146 | |
| 1147 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
| 1783 | 1148 int comp_level, |
| 0 | 1149 methodHandle hot_method, int hot_count, |
| 1150 const char* comment, TRAPS) { | |
| 1151 // make sure arguments make sense | |
| 1152 assert(method->method_holder()->klass_part()->oop_is_instance(), "not an instance method"); | |
| 1153 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); | |
| 1154 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
| 1155 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), "method holder must be initialized"); | |
| 1156 | |
| 1783 | 1157 if (!TieredCompilation) { |
| 1158 comp_level = CompLevel_highest_tier; | |
| 0 | 1159 } |
| 1160 | |
| 1161 // return quickly if possible | |
| 1162 | |
| 1163 // lock, make sure that the compilation | |
| 1164 // isn't prohibited in a straightforward way. | |
| 1165 | |
| 1166 if (compiler(comp_level) == NULL || compilation_is_prohibited(method, osr_bci, comp_level)) { | |
| 1167 return NULL; | |
| 1168 } | |
| 1169 | |
| 1170 if (osr_bci == InvocationEntryBci) { | |
| 1171 // standard compilation | |
| 1172 nmethod* method_code = method->code(); | |
| 1783 | 1173 if (method_code != NULL) { |
| 1174 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1175 return method_code; | |
| 1176 } | |
| 0 | 1177 } |
| 1178 if (method->is_not_compilable(comp_level)) return NULL; | |
| 1202 | 1179 |
|
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|
1180 if (UseCodeCacheFlushing) { |
|
428a9c451986
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1181 nmethod* saved = CodeCache::find_and_remove_saved_code(method()); |
|
428a9c451986
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1182 if (saved != NULL) { |
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1183 method->set_code(method, saved); |
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|
1184 return saved; |
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|
1185 } |
| 1202 | 1186 } |
| 1187 | |
| 0 | 1188 } else { |
| 1189 // osr compilation | |
| 1190 #ifndef TIERED | |
| 1191 // seems like an assert of dubious value | |
| 1783 | 1192 assert(comp_level == CompLevel_highest_tier, |
| 0 | 1193 "all OSR compiles are assumed to be at a single compilation lavel"); |
| 1194 #endif // TIERED | |
| 1783 | 1195 // We accept a higher level osr method |
| 1196 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1197 if (nm != NULL) return nm; |
| 1198 if (method->is_not_osr_compilable()) return NULL; | |
| 1199 } | |
| 1200 | |
| 1201 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
| 1202 // some prerequisites that are compiler specific | |
| 2447 | 1203 if (compiler(comp_level)->is_c2() || compiler(comp_level)->is_shark()) { |
| 0 | 1204 method->constants()->resolve_string_constants(CHECK_0); |
| 1205 // Resolve all classes seen in the signature of the method | |
| 1206 // we are compiling. | |
| 1207 methodOopDesc::load_signature_classes(method, CHECK_0); | |
| 1208 } | |
| 1209 | |
| 1210 // If the method is native, do the lookup in the thread requesting | |
| 1211 // the compilation. Native lookups can load code, which is not | |
| 1212 // permitted during compilation. | |
| 1213 // | |
| 1214 // Note: A native method implies non-osr compilation which is | |
| 1215 // checked with an assertion at the entry of this method. | |
| 1216 if (method->is_native()) { | |
| 1217 bool in_base_library; | |
| 1218 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
| 1219 if (HAS_PENDING_EXCEPTION) { | |
| 1220 // In case of an exception looking up the method, we just forget | |
| 1221 // about it. The interpreter will kick-in and throw the exception. | |
| 1222 method->set_not_compilable(); // implies is_not_osr_compilable() | |
| 1223 CLEAR_PENDING_EXCEPTION; | |
| 1224 return NULL; | |
| 1225 } | |
| 1226 assert(method->has_native_function(), "must have native code by now"); | |
| 1227 } | |
| 1228 | |
| 1229 // RedefineClasses() has replaced this method; just return | |
| 1230 if (method->is_old()) { | |
| 1231 return NULL; | |
| 1232 } | |
| 1233 | |
| 1234 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
| 1235 // a lock the compiling thread can not acquire. Prefetch it here. | |
| 1236 if (JvmtiExport::should_post_compiled_method_load()) { | |
| 1237 method->jmethod_id(); | |
| 1238 } | |
| 1239 | |
| 1202 | 1240 // If the compiler is shut off due to code cache flushing or otherwise, |
| 1241 // fail out now so blocking compiles dont hang the java thread | |
| 1242 if (!should_compile_new_jobs() || (UseCodeCacheFlushing && CodeCache::needs_flushing())) { | |
| 1783 | 1243 CompilationPolicy::policy()->delay_compilation(method()); |
| 1202 | 1244 return NULL; |
| 1245 } | |
| 1246 | |
| 0 | 1247 // do the compilation |
| 1248 if (method->is_native()) { | |
| 1249 if (!PreferInterpreterNativeStubs) { | |
|
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|
1250 // Acquire our lock. |
|
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diff
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|
1251 int compile_id; |
|
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diff
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|
1252 { |
|
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|
1253 MutexLocker locker(MethodCompileQueue_lock, THREAD); |
|
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1254 compile_id = assign_compile_id(method, standard_entry_bci); |
|
3d58a4983660
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1255 } |
|
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|
1256 (void) AdapterHandlerLibrary::create_native_wrapper(method, compile_id); |
| 0 | 1257 } else { |
| 1258 return NULL; | |
| 1259 } | |
| 1260 } else { | |
| 1261 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, CHECK_0); | |
| 1262 } | |
| 1263 | |
| 1264 // return requested nmethod | |
| 1783 | 1265 // We accept a higher level osr method |
| 1266 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1267 } |
| 1268 | |
| 1269 | |
| 1270 // ------------------------------------------------------------------ | |
| 1271 // CompileBroker::compilation_is_complete | |
| 1272 // | |
| 1273 // See if compilation of this method is already complete. | |
| 1274 bool CompileBroker::compilation_is_complete(methodHandle method, | |
| 1275 int osr_bci, | |
| 1276 int comp_level) { | |
| 1277 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1278 if (is_osr) { | |
| 1279 if (method->is_not_osr_compilable()) { | |
| 1280 return true; | |
| 1281 } else { | |
| 1783 | 1282 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
| 0 | 1283 return (result != NULL); |
| 1284 } | |
| 1285 } else { | |
| 1286 if (method->is_not_compilable(comp_level)) { | |
| 1287 return true; | |
| 1288 } else { | |
| 1289 nmethod* result = method->code(); | |
| 1290 if (result == NULL) return false; | |
| 1783 | 1291 return comp_level == result->comp_level(); |
| 0 | 1292 } |
| 1293 } | |
| 1294 } | |
| 1295 | |
| 1296 | |
| 1297 // ------------------------------------------------------------------ | |
| 1298 // CompileBroker::compilation_is_in_queue | |
| 1299 // | |
| 1300 // See if this compilation is already requested. | |
| 1301 // | |
| 1302 // Implementation note: there is only a single "is in queue" bit | |
| 1303 // for each method. This means that the check below is overly | |
| 1304 // conservative in the sense that an osr compilation in the queue | |
| 1305 // will block a normal compilation from entering the queue (and vice | |
| 1306 // versa). This can be remedied by a full queue search to disambiguate | |
| 1307 // cases. If it is deemed profitible, this may be done. | |
| 1308 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
| 1783 | 1309 int osr_bci) { |
| 0 | 1310 return method->queued_for_compilation(); |
| 1311 } | |
| 1312 | |
| 1313 // ------------------------------------------------------------------ | |
| 1314 // CompileBroker::compilation_is_prohibited | |
| 1315 // | |
| 1316 // See if this compilation is not allowed. | |
| 1317 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
| 1318 bool is_native = method->is_native(); | |
| 1319 // Some compilers may not support the compilation of natives. | |
| 1320 if (is_native && | |
| 1321 (!CICompileNatives || !compiler(comp_level)->supports_native())) { | |
| 1783 | 1322 method->set_not_compilable_quietly(comp_level); |
| 0 | 1323 return true; |
| 1324 } | |
| 1325 | |
| 1326 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1327 // Some compilers may not support on stack replacement. | |
| 1328 if (is_osr && | |
| 1329 (!CICompileOSR || !compiler(comp_level)->supports_osr())) { | |
| 1330 method->set_not_osr_compilable(); | |
| 1331 return true; | |
| 1332 } | |
| 1333 | |
| 1334 // The method may be explicitly excluded by the user. | |
| 1335 bool quietly; | |
| 1336 if (CompilerOracle::should_exclude(method, quietly)) { | |
| 1337 if (!quietly) { | |
| 1338 // This does not happen quietly... | |
| 1339 ResourceMark rm; | |
| 1340 tty->print("### Excluding %s:%s", | |
| 1341 method->is_native() ? "generation of native wrapper" : "compile", | |
| 1342 (method->is_static() ? " static" : "")); | |
| 1343 method->print_short_name(tty); | |
| 1344 tty->cr(); | |
| 1345 } | |
|
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1346 method->set_not_compilable_quietly(); |
| 0 | 1347 } |
| 1348 | |
| 1349 return false; | |
| 1350 } | |
| 1351 | |
| 1352 | |
| 1353 // ------------------------------------------------------------------ | |
| 1354 // CompileBroker::assign_compile_id | |
| 1355 // | |
| 1356 // Assign a serialized id number to this compilation request. If the | |
| 1357 // number falls out of the allowed range, return a 0. OSR | |
| 1358 // compilations may be numbered separately from regular compilations | |
| 1359 // if certain debugging flags are used. | |
| 1360 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
| 1783 | 1361 assert(MethodCompileQueue_lock->owner() == Thread::current(), |
| 0 | 1362 "must hold the compilation queue lock"); |
| 1363 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1364 uint id; | |
| 1365 if (CICountOSR && is_osr) { | |
| 1366 id = ++_osr_compilation_id; | |
| 1367 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
| 1368 return id; | |
| 1369 } | |
| 1370 } else { | |
| 1371 id = ++_compilation_id; | |
| 1372 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
| 1373 return id; | |
| 1374 } | |
| 1375 } | |
| 1376 | |
| 1377 // Method was not in the appropriate compilation range. | |
|
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|
1378 method->set_not_compilable_quietly(); |
| 0 | 1379 return 0; |
| 1380 } | |
| 1381 | |
| 1382 | |
| 1383 // ------------------------------------------------------------------ | |
| 1384 // CompileBroker::is_compile_blocking | |
| 1385 // | |
| 1386 // Should the current thread be blocked until this compilation request | |
| 1387 // has been fulfilled? | |
| 1388 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
|
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|
1389 assert(!instanceRefKlass::owns_pending_list_lock(JavaThread::current()), "possible deadlock"); |
|
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|
1390 return !BackgroundCompilation; |
| 0 | 1391 } |
| 1392 | |
| 1393 | |
| 1394 // ------------------------------------------------------------------ | |
| 1395 // CompileBroker::preload_classes | |
| 1396 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
| 1397 // Move this code over from c1_Compiler.cpp | |
| 1398 ShouldNotReachHere(); | |
| 1399 } | |
| 1400 | |
| 1401 | |
| 1402 // ------------------------------------------------------------------ | |
| 1403 // CompileBroker::create_compile_task | |
| 1404 // | |
| 1405 // Create a CompileTask object representing the current request for | |
| 1406 // compilation. Add this task to the queue. | |
| 1407 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
| 1408 int compile_id, | |
| 1409 methodHandle method, | |
| 1410 int osr_bci, | |
| 1411 int comp_level, | |
| 1412 methodHandle hot_method, | |
| 1413 int hot_count, | |
| 1414 const char* comment, | |
| 1415 bool blocking) { | |
| 1416 CompileTask* new_task = allocate_task(); | |
| 1417 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
| 1418 hot_method, hot_count, comment, | |
| 1419 blocking); | |
| 1420 queue->add(new_task); | |
| 1421 return new_task; | |
| 1422 } | |
| 1423 | |
| 1424 | |
| 1425 // ------------------------------------------------------------------ | |
| 1426 // CompileBroker::allocate_task | |
| 1427 // | |
| 1428 // Allocate a CompileTask, from the free list if possible. | |
| 1429 CompileTask* CompileBroker::allocate_task() { | |
| 1430 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1431 CompileTask* task = NULL; | |
| 1432 if (_task_free_list != NULL) { | |
| 1433 task = _task_free_list; | |
| 1434 _task_free_list = task->next(); | |
| 1435 task->set_next(NULL); | |
| 1436 } else { | |
| 1437 task = new CompileTask(); | |
| 1438 task->set_next(NULL); | |
| 1439 } | |
| 1440 return task; | |
| 1441 } | |
| 1442 | |
| 1443 | |
| 1444 // ------------------------------------------------------------------ | |
| 1445 // CompileBroker::free_task | |
| 1446 // | |
| 1447 // Add a task to the free list. | |
| 1448 void CompileBroker::free_task(CompileTask* task) { | |
| 1449 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1450 task->free(); | |
| 1451 task->set_next(_task_free_list); | |
| 1452 _task_free_list = task; | |
| 1453 } | |
| 1454 | |
| 1455 | |
| 1456 // ------------------------------------------------------------------ | |
| 1457 // CompileBroker::wait_for_completion | |
| 1458 // | |
| 1459 // Wait for the given method CompileTask to complete. | |
| 1460 void CompileBroker::wait_for_completion(CompileTask* task) { | |
| 1461 if (CIPrintCompileQueue) { | |
| 1462 tty->print_cr("BLOCKING FOR COMPILE"); | |
| 1463 } | |
| 1464 | |
| 1465 assert(task->is_blocking(), "can only wait on blocking task"); | |
| 1466 | |
| 1467 JavaThread *thread = JavaThread::current(); | |
| 1468 thread->set_blocked_on_compilation(true); | |
| 1469 | |
| 1470 methodHandle method(thread, | |
| 1471 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1472 { | |
| 1473 MutexLocker waiter(task->lock(), thread); | |
| 1474 | |
| 1475 while (!task->is_complete()) | |
| 1476 task->lock()->wait(); | |
| 1477 } | |
| 1478 // It is harmless to check this status without the lock, because | |
| 1479 // completion is a stable property (until the task object is recycled). | |
| 1480 assert(task->is_complete(), "Compilation should have completed"); | |
| 1481 assert(task->code_handle() == NULL, "must be reset"); | |
| 1482 | |
| 1483 thread->set_blocked_on_compilation(false); | |
| 1484 | |
| 1485 // By convention, the waiter is responsible for recycling a | |
| 1486 // blocking CompileTask. Since there is only one waiter ever | |
| 1487 // waiting on a CompileTask, we know that no one else will | |
| 1488 // be using this CompileTask; we can free it. | |
| 1489 free_task(task); | |
| 1490 } | |
| 1491 | |
| 1492 // ------------------------------------------------------------------ | |
| 1493 // CompileBroker::compiler_thread_loop | |
| 1494 // | |
| 1495 // The main loop run by a CompilerThread. | |
| 1496 void CompileBroker::compiler_thread_loop() { | |
| 1497 CompilerThread* thread = CompilerThread::current(); | |
| 1498 CompileQueue* queue = thread->queue(); | |
| 1499 | |
| 1500 // For the thread that initializes the ciObjectFactory | |
| 1501 // this resource mark holds all the shared objects | |
| 1502 ResourceMark rm; | |
| 1503 | |
| 1504 // First thread to get here will initialize the compiler interface | |
| 1505 | |
| 1506 if (!ciObjectFactory::is_initialized()) { | |
| 1507 ASSERT_IN_VM; | |
| 1508 MutexLocker only_one (CompileThread_lock, thread); | |
| 1509 if (!ciObjectFactory::is_initialized()) { | |
| 1510 ciObjectFactory::initialize(); | |
| 1511 } | |
| 1512 } | |
| 1513 | |
| 1514 // Open a log. | |
| 1515 if (LogCompilation) { | |
| 1516 init_compiler_thread_log(); | |
| 1517 } | |
| 1518 CompileLog* log = thread->log(); | |
| 1519 if (log != NULL) { | |
| 1520 log->begin_elem("start_compile_thread thread='" UINTX_FORMAT "' process='%d'", | |
| 1521 os::current_thread_id(), | |
| 1522 os::current_process_id()); | |
| 1523 log->stamp(); | |
| 1524 log->end_elem(); | |
| 1525 } | |
| 1526 | |
| 1527 while (true) { | |
| 1528 { | |
| 1529 // We need this HandleMark to avoid leaking VM handles. | |
| 1530 HandleMark hm(thread); | |
| 1202 | 1531 |
|
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1532 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) { |
| 1202 | 1533 // the code cache is really full |
| 1534 handle_full_code_cache(); | |
| 1535 } else if (UseCodeCacheFlushing && CodeCache::needs_flushing()) { | |
| 1536 // Attempt to start cleaning the code cache while there is still a little headroom | |
| 1537 NMethodSweeper::handle_full_code_cache(false); | |
| 0 | 1538 } |
| 1539 | |
|
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1540 CompileTask* task = queue->get(); |
| 0 | 1541 |
|
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1542 // Give compiler threads an extra quanta. They tend to be bursty and |
|
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1543 // this helps the compiler to finish up the job. |
|
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|
1544 if( CompilerThreadHintNoPreempt ) |
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|
1545 os::hint_no_preempt(); |
| 0 | 1546 |
|
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1547 // trace per thread time and compile statistics |
|
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1548 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); |
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1549 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); |
| 0 | 1550 |
|
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1551 // Assign the task to the current thread. Mark this compilation |
|
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1552 // thread as active for the profiler. |
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|
1553 CompileTaskWrapper ctw(task); |
|
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1554 nmethodLocker result_handle; // (handle for the nmethod produced by this task) |
|
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1555 task->set_code_handle(&result_handle); |
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1556 methodHandle method(thread, |
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1557 (methodOop)JNIHandles::resolve(task->method_handle())); |
| 0 | 1558 |
|
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1559 // Never compile a method if breakpoints are present in it |
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1560 if (method()->number_of_breakpoints() == 0) { |
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1561 // Compile the method. |
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1562 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
|
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1563 #ifdef COMPILER1 |
|
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1564 // Allow repeating compilations for the purpose of benchmarking |
|
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1565 // compile speed. This is not useful for customers. |
|
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1566 if (CompilationRepeat != 0) { |
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1567 int compile_count = CompilationRepeat; |
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1568 while (compile_count > 0) { |
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1569 invoke_compiler_on_method(task); |
|
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1570 nmethod* nm = method->code(); |
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1571 if (nm != NULL) { |
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1572 nm->make_zombie(); |
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1573 method->clear_code(); |
| 0 | 1574 } |
|
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1575 compile_count--; |
| 0 | 1576 } |
| 1577 } | |
|
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1578 #endif /* COMPILER1 */ |
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1579 invoke_compiler_on_method(task); |
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1580 } else { |
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1581 // After compilation is disabled, remove remaining methods from queue |
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1582 method->clear_queued_for_compilation(); |
| 0 | 1583 } |
| 1584 } | |
| 1585 } | |
| 1586 } | |
| 1587 } | |
| 1588 | |
| 1589 | |
| 1590 // ------------------------------------------------------------------ | |
| 1591 // CompileBroker::init_compiler_thread_log | |
| 1592 // | |
| 1593 // Set up state required by +LogCompilation. | |
| 1594 void CompileBroker::init_compiler_thread_log() { | |
| 1595 CompilerThread* thread = CompilerThread::current(); | |
| 1596 char fileBuf[4*K]; | |
| 1597 FILE* fp = NULL; | |
| 1598 char* file = NULL; | |
| 1599 intx thread_id = os::current_thread_id(); | |
| 1600 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
| 1601 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
|
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1602 if (dir == NULL) { |
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1603 jio_snprintf(fileBuf, sizeof(fileBuf), "hs_c" UINTX_FORMAT "_pid%u.log", |
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1604 thread_id, os::current_process_id()); |
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1605 } else { |
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1606 jio_snprintf(fileBuf, sizeof(fileBuf), |
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1607 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
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1608 os::file_separator(), thread_id, os::current_process_id()); |
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1609 } |
| 0 | 1610 fp = fopen(fileBuf, "at"); |
| 1611 if (fp != NULL) { | |
| 1612 file = NEW_C_HEAP_ARRAY(char, strlen(fileBuf)+1); | |
| 1613 strcpy(file, fileBuf); | |
| 1614 break; | |
| 1615 } | |
| 1616 } | |
| 1617 if (fp == NULL) { | |
| 1618 warning("Cannot open log file: %s", fileBuf); | |
| 1619 } else { | |
| 1620 if (LogCompilation && Verbose) | |
| 1621 tty->print_cr("Opening compilation log %s", file); | |
| 1622 CompileLog* log = new(ResourceObj::C_HEAP) CompileLog(file, fp, thread_id); | |
| 1623 thread->init_log(log); | |
| 1624 | |
| 1625 if (xtty != NULL) { | |
| 1626 ttyLocker ttyl; | |
| 1627 | |
| 1628 // Record any per thread log files | |
| 1629 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file); | |
| 1630 } | |
| 1631 } | |
| 1632 } | |
| 1633 | |
| 1634 // ------------------------------------------------------------------ | |
| 1635 // CompileBroker::set_should_block | |
| 1636 // | |
| 1637 // Set _should_block. | |
| 1638 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
| 1639 void CompileBroker::set_should_block() { | |
| 1640 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
| 1641 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
| 1642 #ifndef PRODUCT | |
| 1643 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1644 tty->print_cr("notifying compiler thread pool to block"); | |
| 1645 #endif | |
| 1646 _should_block = true; | |
| 1647 } | |
| 1648 | |
| 1649 // ------------------------------------------------------------------ | |
| 1650 // CompileBroker::maybe_block | |
| 1651 // | |
| 1652 // Call this from the compiler at convenient points, to poll for _should_block. | |
| 1653 void CompileBroker::maybe_block() { | |
| 1654 if (_should_block) { | |
| 1655 #ifndef PRODUCT | |
| 1656 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1657 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
| 1658 #endif | |
| 1659 ThreadInVMfromNative tivfn(JavaThread::current()); | |
| 1660 } | |
| 1661 } | |
| 1662 | |
| 1663 | |
| 1664 // ------------------------------------------------------------------ | |
| 1665 // CompileBroker::invoke_compiler_on_method | |
| 1666 // | |
| 1667 // Compile a method. | |
| 1668 // | |
| 1669 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
| 1670 if (PrintCompilation) { | |
| 1671 ResourceMark rm; | |
| 1672 task->print_line(); | |
| 1673 } | |
| 1674 elapsedTimer time; | |
| 1675 | |
| 1676 CompilerThread* thread = CompilerThread::current(); | |
| 1677 ResourceMark rm(thread); | |
| 1678 | |
| 1679 // Common flags. | |
| 1680 uint compile_id = task->compile_id(); | |
| 1681 int osr_bci = task->osr_bci(); | |
| 1682 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1683 bool should_log = (thread->log() != NULL); | |
| 1684 bool should_break = false; | |
| 1685 { | |
| 1686 // create the handle inside it's own block so it can't | |
| 1687 // accidentally be referenced once the thread transitions to | |
| 1688 // native. The NoHandleMark before the transition should catch | |
| 1689 // any cases where this occurs in the future. | |
| 1690 methodHandle method(thread, | |
| 1691 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1692 should_break = check_break_at(method, compile_id, is_osr); | |
| 1693 if (should_log && !CompilerOracle::should_log(method)) { | |
| 1694 should_log = false; | |
| 1695 } | |
| 1696 assert(!method->is_native(), "no longer compile natives"); | |
| 1697 | |
| 1698 // Save information about this method in case of failure. | |
| 1699 set_last_compile(thread, method, is_osr, task->comp_level()); | |
| 1700 | |
| 1701 DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task->comp_level()), method); | |
| 1702 } | |
| 1703 | |
| 1704 // Allocate a new set of JNI handles. | |
| 1705 push_jni_handle_block(); | |
| 1706 jobject target_handle = JNIHandles::make_local(thread, JNIHandles::resolve(task->method_handle())); | |
|
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1707 int compilable = ciEnv::MethodCompilable; |
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1708 { |
| 0 | 1709 int system_dictionary_modification_counter; |
| 1710 { | |
| 1711 MutexLocker locker(Compile_lock, thread); | |
| 1712 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
| 1713 } | |
| 1714 | |
|
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1715 NoHandleMark nhm; |
| 0 | 1716 ThreadToNativeFromVM ttn(thread); |
| 1717 | |
| 1718 ciEnv ci_env(task, system_dictionary_modification_counter); | |
| 1719 if (should_break) { | |
| 1720 ci_env.set_break_at_compile(true); | |
| 1721 } | |
| 1722 if (should_log) { | |
| 1723 ci_env.set_log(thread->log()); | |
| 1724 } | |
| 1725 assert(thread->env() == &ci_env, "set by ci_env"); | |
| 1726 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
| 1727 | |
|
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1728 // Cache Jvmti state |
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1729 ci_env.cache_jvmti_state(); |
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1730 |
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1731 // Cache DTrace flags |
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1732 ci_env.cache_dtrace_flags(); |
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1733 |
| 0 | 1734 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
| 1735 | |
| 1736 TraceTime t1("compilation", &time); | |
| 1737 | |
| 1738 compiler(task->comp_level())->compile_method(&ci_env, target, osr_bci); | |
| 1739 | |
|
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|
1740 if (!ci_env.failing() && task->code() == NULL) { |
| 0 | 1741 //assert(false, "compiler should always document failure"); |
| 1742 // The compiler elected, without comment, not to register a result. | |
| 1743 // Do not attempt further compilations of this method. | |
|
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1744 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
|
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|
1745 } |
| 0 | 1746 |
| 1747 if (ci_env.failing()) { | |
| 1748 // Copy this bit to the enclosing block: | |
| 1749 compilable = ci_env.compilable(); | |
| 1750 if (PrintCompilation) { | |
| 1751 const char* reason = ci_env.failure_reason(); | |
| 1752 if (compilable == ciEnv::MethodCompilable_not_at_tier) { | |
| 4047 | 1753 tty->print_cr("%4d COMPILE SKIPPED: %s (retry at different tier)", compile_id, reason); |
|
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1754 } else if (compilable == ciEnv::MethodCompilable_never) { |
| 4047 | 1755 tty->print_cr("%4d COMPILE SKIPPED: %s (not retryable)", compile_id, reason); |
| 0 | 1756 } else if (compilable == ciEnv::MethodCompilable) { |
| 4047 | 1757 tty->print_cr("%4d COMPILE SKIPPED: %s", compile_id, reason); |
| 0 | 1758 } |
| 1759 } | |
| 1760 } else { | |
| 1761 task->mark_success(); | |
| 1762 task->set_num_inlined_bytecodes(ci_env.num_inlined_bytecodes()); | |
| 1763 } | |
| 1764 } | |
| 1765 pop_jni_handle_block(); | |
| 1766 | |
| 1767 methodHandle method(thread, | |
| 1768 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1769 | |
| 1770 DTRACE_METHOD_COMPILE_END_PROBE(compiler(task->comp_level()), method, task->is_success()); | |
| 1771 | |
| 1772 collect_statistics(thread, time, task); | |
| 1773 | |
|
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1774 if (PrintCompilation && PrintCompilation2) { |
| 4047 | 1775 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); // print timestamp |
| 1776 tty->print("%4d ", compile_id); // print compilation number | |
| 1777 tty->print("%s ", (is_osr ? "%" : " ")); | |
|
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1778 int code_size = (task->code() == NULL) ? 0 : task->code()->total_size(); |
|
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1779 tty->print_cr("size: %d time: %d inlined: %d bytes", code_size, (int)time.milliseconds(), task->num_inlined_bytecodes()); |
| 4047 | 1780 } |
| 1781 | |
| 0 | 1782 if (compilable == ciEnv::MethodCompilable_never) { |
| 1783 if (is_osr) { | |
| 1784 method->set_not_osr_compilable(); | |
| 1785 } else { | |
|
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1786 method->set_not_compilable_quietly(); |
| 0 | 1787 } |
| 1788 } else if (compilable == ciEnv::MethodCompilable_not_at_tier) { | |
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1789 method->set_not_compilable_quietly(task->comp_level()); |
| 0 | 1790 } |
| 1791 | |
| 1792 // Note that the queued_for_compilation bits are cleared without | |
| 1793 // protection of a mutex. [They were set by the requester thread, | |
| 1794 // when adding the task to the complie queue -- at which time the | |
| 1795 // compile queue lock was held. Subsequently, we acquired the compile | |
| 1796 // queue lock to get this task off the compile queue; thus (to belabour | |
| 1797 // the point somewhat) our clearing of the bits must be occurring | |
| 1798 // only after the setting of the bits. See also 14012000 above. | |
| 1799 method->clear_queued_for_compilation(); | |
| 1800 | |
| 1801 #ifdef ASSERT | |
| 1802 if (CollectedHeap::fired_fake_oom()) { | |
| 1803 // The current compile received a fake OOM during compilation so | |
| 1804 // go ahead and exit the VM since the test apparently succeeded | |
| 1805 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
| 1806 vm_exit(0); | |
| 1807 } | |
| 1808 #endif | |
| 1809 } | |
| 1810 | |
| 1811 // ------------------------------------------------------------------ | |
| 1202 | 1812 // CompileBroker::handle_full_code_cache |
| 1813 // | |
| 1814 // The CodeCache is full. Print out warning and disable compilation or | |
| 1815 // try code cache cleaning so compilation can continue later. | |
| 1816 void CompileBroker::handle_full_code_cache() { | |
| 1817 UseInterpreter = true; | |
| 1818 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
|
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1819 if (xtty != NULL) { |
|
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1820 stringStream s; |
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1821 // Dump code cache state into a buffer before locking the tty, |
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1822 // because log_state() will use locks causing lock conflicts. |
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1823 CodeCache::log_state(&s); |
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1824 // Lock to prevent tearing |
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1825 ttyLocker ttyl; |
|
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1826 xtty->begin_elem("code_cache_full"); |
|
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1827 xtty->print(s.as_string()); |
|
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1828 xtty->stamp(); |
|
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1829 xtty->end_elem(); |
| 1202 | 1830 } |
|
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1831 warning("CodeCache is full. Compiler has been disabled."); |
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|
1832 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
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1833 CodeCache::print_bounds(tty); |
|
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1834 #ifndef PRODUCT |
| 1202 | 1835 if (CompileTheWorld || ExitOnFullCodeCache) { |
| 1836 before_exit(JavaThread::current()); | |
| 1837 exit_globals(); // will delete tty | |
| 1838 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
| 1839 } | |
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1840 #endif |
| 1202 | 1841 if (UseCodeCacheFlushing) { |
| 1842 NMethodSweeper::handle_full_code_cache(true); | |
| 1843 } else { | |
| 1844 UseCompiler = false; | |
| 1845 AlwaysCompileLoopMethods = false; | |
| 1846 } | |
| 1847 } | |
| 1848 } | |
| 1849 | |
| 1850 // ------------------------------------------------------------------ | |
| 0 | 1851 // CompileBroker::set_last_compile |
| 1852 // | |
| 1853 // Record this compilation for debugging purposes. | |
| 1854 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
| 1855 ResourceMark rm; | |
| 1856 char* method_name = method->name()->as_C_string(); | |
| 1857 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
| 1858 char current_method[CompilerCounters::cmname_buffer_length]; | |
| 1859 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
| 1860 | |
| 1861 if (UsePerfData) { | |
| 1862 const char* class_name = method->method_holder()->klass_part()->name()->as_C_string(); | |
| 1863 | |
| 1864 size_t s1len = strlen(class_name); | |
| 1865 size_t s2len = strlen(method_name); | |
| 1866 | |
| 1867 // check if we need to truncate the string | |
| 1868 if (s1len + s2len + 2 > maxLen) { | |
| 1869 | |
| 1870 // the strategy is to lop off the leading characters of the | |
| 1871 // class name and the trailing characters of the method name. | |
| 1872 | |
| 1873 if (s2len + 2 > maxLen) { | |
| 1874 // lop of the entire class name string, let snprintf handle | |
| 1875 // truncation of the method name. | |
| 1876 class_name += s1len; // null string | |
| 1877 } | |
| 1878 else { | |
| 1879 // lop off the extra characters from the front of the class name | |
| 1880 class_name += ((s1len + s2len + 2) - maxLen); | |
| 1881 } | |
| 1882 } | |
| 1883 | |
| 1884 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
| 1885 } | |
| 1886 | |
| 1887 if (CICountOSR && is_osr) { | |
| 1888 _last_compile_type = osr_compile; | |
| 1889 } else { | |
| 1890 _last_compile_type = normal_compile; | |
| 1891 } | |
| 1892 _last_compile_level = comp_level; | |
| 1893 | |
| 1894 if (UsePerfData) { | |
| 1895 CompilerCounters* counters = thread->counters(); | |
| 1896 counters->set_current_method(current_method); | |
| 1897 counters->set_compile_type((jlong)_last_compile_type); | |
| 1898 } | |
| 1899 } | |
| 1900 | |
| 1901 | |
| 1902 // ------------------------------------------------------------------ | |
| 1903 // CompileBroker::push_jni_handle_block | |
| 1904 // | |
| 1905 // Push on a new block of JNI handles. | |
| 1906 void CompileBroker::push_jni_handle_block() { | |
| 1907 JavaThread* thread = JavaThread::current(); | |
| 1908 | |
| 1909 // Allocate a new block for JNI handles. | |
| 1910 // Inlined code from jni_PushLocalFrame() | |
| 1911 JNIHandleBlock* java_handles = thread->active_handles(); | |
| 1912 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
| 1913 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
| 1914 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
| 1915 thread->set_active_handles(compile_handles); | |
| 1916 } | |
| 1917 | |
| 1918 | |
| 1919 // ------------------------------------------------------------------ | |
| 1920 // CompileBroker::pop_jni_handle_block | |
| 1921 // | |
| 1922 // Pop off the current block of JNI handles. | |
| 1923 void CompileBroker::pop_jni_handle_block() { | |
| 1924 JavaThread* thread = JavaThread::current(); | |
| 1925 | |
| 1926 // Release our JNI handle block | |
| 1927 JNIHandleBlock* compile_handles = thread->active_handles(); | |
| 1928 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
| 1929 thread->set_active_handles(java_handles); | |
| 1930 compile_handles->set_pop_frame_link(NULL); | |
| 1931 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
| 1932 } | |
| 1933 | |
| 1934 | |
| 1935 // ------------------------------------------------------------------ | |
| 1936 // CompileBroker::check_break_at | |
| 1937 // | |
| 1938 // Should the compilation break at the current compilation. | |
| 1939 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
| 1940 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
| 1941 return true; | |
| 1942 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
| 1943 return true; | |
| 1944 } else { | |
| 1945 return (compile_id == CIBreakAt); | |
| 1946 } | |
| 1947 } | |
| 1948 | |
| 1949 // ------------------------------------------------------------------ | |
| 1950 // CompileBroker::collect_statistics | |
| 1951 // | |
| 1952 // Collect statistics about the compilation. | |
| 1953 | |
| 1954 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
| 1955 bool success = task->is_success(); | |
| 1956 methodHandle method (thread, (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1957 uint compile_id = task->compile_id(); | |
| 1958 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
| 1959 nmethod* code = task->code(); | |
| 1960 CompilerCounters* counters = thread->counters(); | |
| 1961 | |
| 1962 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
| 1963 MutexLocker locker(CompileStatistics_lock); | |
| 1964 | |
| 1965 // _perf variables are production performance counters which are | |
| 1966 // updated regardless of the setting of the CITime and CITimeEach flags | |
| 1967 // | |
| 1968 if (!success) { | |
| 1969 _total_bailout_count++; | |
| 1970 if (UsePerfData) { | |
| 1971 _perf_last_failed_method->set_value(counters->current_method()); | |
| 1972 _perf_last_failed_type->set_value(counters->compile_type()); | |
| 1973 _perf_total_bailout_count->inc(); | |
| 1974 } | |
| 1975 } else if (code == NULL) { | |
| 1976 if (UsePerfData) { | |
| 1977 _perf_last_invalidated_method->set_value(counters->current_method()); | |
| 1978 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
| 1979 _perf_total_invalidated_count->inc(); | |
| 1980 } | |
| 1981 _total_invalidated_count++; | |
| 1982 } else { | |
| 1983 // Compilation succeeded | |
| 1984 | |
| 1985 // update compilation ticks - used by the implementation of | |
| 1986 // java.lang.management.CompilationMBean | |
| 1987 _perf_total_compilation->inc(time.ticks()); | |
| 1988 | |
| 1989 if (CITime) { | |
| 1990 _t_total_compilation.add(time); | |
| 1991 if (is_osr) { | |
| 1992 _t_osr_compilation.add(time); | |
| 1993 _sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 1994 } else { | |
| 1995 _t_standard_compilation.add(time); | |
| 1996 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 1997 } | |
| 1998 } | |
| 1999 | |
| 2000 if (UsePerfData) { | |
| 2001 // save the name of the last method compiled | |
| 2002 _perf_last_method->set_value(counters->current_method()); | |
| 2003 _perf_last_compile_type->set_value(counters->compile_type()); | |
| 2004 _perf_last_compile_size->set_value(method->code_size() + | |
| 2005 task->num_inlined_bytecodes()); | |
| 2006 if (is_osr) { | |
| 2007 _perf_osr_compilation->inc(time.ticks()); | |
| 2008 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2009 } else { | |
| 2010 _perf_standard_compilation->inc(time.ticks()); | |
| 2011 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2012 } | |
| 2013 } | |
| 2014 | |
| 2015 if (CITimeEach) { | |
| 2016 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
| 2017 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
| 2018 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
| 2019 } | |
| 2020 | |
| 2021 // Collect counts of successful compilations | |
| 1748 | 2022 _sum_nmethod_size += code->total_size(); |
| 2023 _sum_nmethod_code_size += code->insts_size(); | |
| 0 | 2024 _total_compile_count++; |
| 2025 | |
| 2026 if (UsePerfData) { | |
| 1748 | 2027 _perf_sum_nmethod_size->inc( code->total_size()); |
| 2028 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
| 0 | 2029 _perf_total_compile_count->inc(); |
| 2030 } | |
| 2031 | |
| 2032 if (is_osr) { | |
| 2033 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
| 2034 _total_osr_compile_count++; | |
| 2035 } else { | |
| 2036 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
| 2037 _total_standard_compile_count++; | |
| 2038 } | |
| 2039 } | |
| 2040 // set the current method for the thread to null | |
| 2041 if (UsePerfData) counters->set_current_method(""); | |
| 2042 } | |
| 2043 | |
| 2044 | |
| 2045 | |
| 2046 void CompileBroker::print_times() { | |
| 2047 tty->cr(); | |
| 2048 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
| 2049 tty->print_cr("------------------------------------------------"); | |
| 2050 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
| 2051 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
| 2052 tty->print_cr(" Total compilation time : %6.3f s", CompileBroker::_t_total_compilation.seconds()); | |
| 2053 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", | |
| 2054 CompileBroker::_t_standard_compilation.seconds(), | |
| 2055 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count); | |
| 2056 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 | 2057 |
| 1783 | 2058 if (compiler(CompLevel_simple) != NULL) { |
| 2059 compiler(CompLevel_simple)->print_timers(); | |
| 0 | 2060 } |
| 1783 | 2061 if (compiler(CompLevel_full_optimization) != NULL) { |
| 2062 compiler(CompLevel_full_optimization)->print_timers(); | |
| 2063 } | |
| 0 | 2064 tty->cr(); |
| 2065 int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled; | |
| 2066 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); | |
| 2067 tty->print_cr(" Standard compilation : %6d bytes", CompileBroker::_sum_standard_bytes_compiled); | |
| 2068 tty->print_cr(" On stack replacement : %6d bytes", CompileBroker::_sum_osr_bytes_compiled); | |
| 2069 int bps = (int)(tcb / CompileBroker::_t_total_compilation.seconds()); | |
| 2070 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); | |
| 2071 tty->cr(); | |
| 2072 tty->print_cr(" nmethod code size : %6d bytes", CompileBroker::_sum_nmethod_code_size); | |
| 2073 tty->print_cr(" nmethod total size : %6d bytes", CompileBroker::_sum_nmethod_size); | |
| 2074 } | |
| 2075 | |
| 2076 | |
| 2077 // Debugging output for failure | |
| 2078 void CompileBroker::print_last_compile() { | |
| 2079 if ( _last_compile_level != CompLevel_none && | |
| 2080 compiler(_last_compile_level) != NULL && | |
| 2081 _last_method_compiled != NULL && | |
| 2082 _last_compile_type != no_compile) { | |
| 2083 if (_last_compile_type == osr_compile) { | |
| 2084 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
| 2085 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
| 2086 } else { | |
| 2087 tty->print_cr("Last parse: %d+++(%d) %s", | |
| 2088 _compilation_id, _last_compile_level, _last_method_compiled); | |
| 2089 } | |
| 2090 } | |
| 2091 } | |
| 2092 | |
| 2093 | |
| 2094 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
| 2095 #ifndef PRODUCT | |
| 2096 st->print_cr("Compiler thread printing unimplemented."); | |
| 2097 st->cr(); | |
| 2098 #endif | |
| 2099 } |