Mercurial > hg > graal-compiler
annotate src/share/vm/compiler/compileBroker.cpp @ 4122:cc81b9c09bbb
7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE
Summary: Fixed several EA issues with Connection Graph construction.
Reviewed-by: never, twisti
| author | kvn |
|---|---|
| date | Mon, 28 Nov 2011 15:46:31 -0800 |
| parents | 670a74b863fc |
| children | 04b9a2566eec 20334ed5ed3c de268c8a8075 |
| 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" | |
| 47 #ifdef COMPILER1 | |
| 48 #include "c1/c1_Compiler.hpp" | |
| 49 #endif | |
| 50 #ifdef COMPILER2 | |
| 51 #include "opto/c2compiler.hpp" | |
| 52 #endif | |
| 53 #ifdef SHARK | |
| 54 #include "shark/sharkCompiler.hpp" | |
| 55 #endif | |
| 0 | 56 |
| 57 #ifdef DTRACE_ENABLED | |
| 58 | |
| 59 // Only bother with this argument setup if dtrace is available | |
| 60 | |
| 4006 | 61 #ifndef USDT2 |
| 0 | 62 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, |
| 63 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
| 64 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
| 65 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
| 66 | |
| 67 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 68 { \ | |
| 69 char* comp_name = (char*)(compiler)->name(); \ | |
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70 Symbol* klass_name = (method)->klass_name(); \ |
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71 Symbol* name = (method)->name(); \ |
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72 Symbol* signature = (method)->signature(); \ |
| 0 | 73 HS_DTRACE_PROBE8(hotspot, method__compile__begin, \ |
| 74 comp_name, strlen(comp_name), \ | |
| 75 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 76 name->bytes(), name->utf8_length(), \ | |
| 77 signature->bytes(), signature->utf8_length()); \ | |
| 78 } | |
| 79 | |
| 80 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 81 { \ | |
| 82 char* comp_name = (char*)(compiler)->name(); \ | |
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83 Symbol* klass_name = (method)->klass_name(); \ |
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84 Symbol* name = (method)->name(); \ |
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85 Symbol* signature = (method)->signature(); \ |
| 0 | 86 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ |
| 87 comp_name, strlen(comp_name), \ | |
| 88 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 89 name->bytes(), name->utf8_length(), \ | |
| 90 signature->bytes(), signature->utf8_length(), (success)); \ | |
| 91 } | |
| 92 | |
| 4006 | 93 #else /* USDT2 */ |
| 94 | |
| 95 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 96 { \ | |
| 97 char* comp_name = (char*)(compiler)->name(); \ | |
| 98 Symbol* klass_name = (method)->klass_name(); \ | |
| 99 Symbol* name = (method)->name(); \ | |
| 100 Symbol* signature = (method)->signature(); \ | |
| 101 HOTSPOT_METHOD_COMPILE_BEGIN( \ | |
| 102 comp_name, strlen(comp_name), \ | |
| 103 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 104 (char *) name->bytes(), name->utf8_length(), \ | |
| 105 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 106 } | |
| 107 | |
| 108 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 109 { \ | |
| 110 char* comp_name = (char*)(compiler)->name(); \ | |
| 111 Symbol* klass_name = (method)->klass_name(); \ | |
| 112 Symbol* name = (method)->name(); \ | |
| 113 Symbol* signature = (method)->signature(); \ | |
| 114 HOTSPOT_METHOD_COMPILE_END( \ | |
| 115 comp_name, strlen(comp_name), \ | |
| 116 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 117 (char *) name->bytes(), name->utf8_length(), \ | |
| 118 (char *) signature->bytes(), signature->utf8_length(), (success)); \ | |
| 119 } | |
| 120 #endif /* USDT2 */ | |
| 121 | |
| 0 | 122 #else // ndef DTRACE_ENABLED |
| 123 | |
| 124 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) | |
| 125 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) | |
| 126 | |
| 127 #endif // ndef DTRACE_ENABLED | |
| 128 | |
| 129 bool CompileBroker::_initialized = false; | |
| 130 volatile bool CompileBroker::_should_block = false; | |
| 1202 | 131 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
| 0 | 132 |
| 133 // The installed compiler(s) | |
| 134 AbstractCompiler* CompileBroker::_compilers[2]; | |
| 135 | |
| 136 // These counters are used for assigning id's to each compilation | |
| 137 uint CompileBroker::_compilation_id = 0; | |
| 138 uint CompileBroker::_osr_compilation_id = 0; | |
| 139 | |
| 140 // Debugging information | |
| 141 int CompileBroker::_last_compile_type = no_compile; | |
| 142 int CompileBroker::_last_compile_level = CompLevel_none; | |
| 143 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
| 144 | |
| 145 // Performance counters | |
| 146 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
| 147 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
| 148 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
| 149 | |
| 150 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
| 151 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
| 152 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
| 153 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
| 154 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
| 155 | |
| 156 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
| 157 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
| 158 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
| 159 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
| 160 | |
| 161 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
| 162 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
| 163 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
| 164 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
| 165 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
| 166 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
| 167 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
| 168 | |
| 169 // Timers and counters for generating statistics | |
| 170 elapsedTimer CompileBroker::_t_total_compilation; | |
| 171 elapsedTimer CompileBroker::_t_osr_compilation; | |
| 172 elapsedTimer CompileBroker::_t_standard_compilation; | |
| 173 | |
| 174 int CompileBroker::_total_bailout_count = 0; | |
| 175 int CompileBroker::_total_invalidated_count = 0; | |
| 176 int CompileBroker::_total_compile_count = 0; | |
| 177 int CompileBroker::_total_osr_compile_count = 0; | |
| 178 int CompileBroker::_total_standard_compile_count = 0; | |
| 179 | |
| 180 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
| 181 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
| 182 int CompileBroker::_sum_nmethod_size = 0; | |
| 183 int CompileBroker::_sum_nmethod_code_size = 0; | |
| 184 | |
| 1783 | 185 CompileQueue* CompileBroker::_c2_method_queue = NULL; |
| 186 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
| 0 | 187 CompileTask* CompileBroker::_task_free_list = NULL; |
| 188 | |
| 189 GrowableArray<CompilerThread*>* CompileBroker::_method_threads = NULL; | |
| 190 | |
| 191 | |
| 192 CompileTaskWrapper::CompileTaskWrapper(CompileTask* task) { | |
| 193 CompilerThread* thread = CompilerThread::current(); | |
| 194 thread->set_task(task); | |
| 195 CompileLog* log = thread->log(); | |
| 196 if (log != NULL) task->log_task_start(log); | |
| 197 } | |
| 198 | |
| 199 CompileTaskWrapper::~CompileTaskWrapper() { | |
| 200 CompilerThread* thread = CompilerThread::current(); | |
| 201 CompileTask* task = thread->task(); | |
| 202 CompileLog* log = thread->log(); | |
| 203 if (log != NULL) task->log_task_done(log); | |
| 204 thread->set_task(NULL); | |
| 205 task->set_code_handle(NULL); | |
| 206 DEBUG_ONLY(thread->set_env((ciEnv*)badAddress)); | |
| 207 if (task->is_blocking()) { | |
| 208 MutexLocker notifier(task->lock(), thread); | |
| 209 task->mark_complete(); | |
| 210 // Notify the waiting thread that the compilation has completed. | |
| 211 task->lock()->notify_all(); | |
| 212 } else { | |
| 213 task->mark_complete(); | |
| 214 | |
| 215 // By convention, the compiling thread is responsible for | |
| 216 // recycling a non-blocking CompileTask. | |
| 217 CompileBroker::free_task(task); | |
| 218 } | |
| 219 } | |
| 220 | |
| 221 | |
| 222 // ------------------------------------------------------------------ | |
| 223 // CompileTask::initialize | |
| 224 void CompileTask::initialize(int compile_id, | |
| 225 methodHandle method, | |
| 226 int osr_bci, | |
| 227 int comp_level, | |
| 228 methodHandle hot_method, | |
| 229 int hot_count, | |
| 230 const char* comment, | |
| 231 bool is_blocking) { | |
| 232 assert(!_lock->is_locked(), "bad locking"); | |
| 233 | |
| 234 _compile_id = compile_id; | |
| 235 _method = JNIHandles::make_global(method); | |
| 236 _osr_bci = osr_bci; | |
| 237 _is_blocking = is_blocking; | |
| 238 _comp_level = comp_level; | |
| 239 _num_inlined_bytecodes = 0; | |
| 240 | |
| 241 _is_complete = false; | |
| 242 _is_success = false; | |
| 243 _code_handle = NULL; | |
| 244 | |
| 245 _hot_method = NULL; | |
| 246 _hot_count = hot_count; | |
| 247 _time_queued = 0; // tidy | |
| 248 _comment = comment; | |
| 249 | |
| 250 if (LogCompilation) { | |
| 251 _time_queued = os::elapsed_counter(); | |
| 252 if (hot_method.not_null()) { | |
| 253 if (hot_method == method) { | |
| 254 _hot_method = _method; | |
| 255 } else { | |
| 256 _hot_method = JNIHandles::make_global(hot_method); | |
| 257 } | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 _next = NULL; | |
| 262 } | |
| 263 | |
| 264 // ------------------------------------------------------------------ | |
| 265 // CompileTask::code/set_code | |
| 266 nmethod* CompileTask::code() const { | |
| 267 if (_code_handle == NULL) return NULL; | |
| 268 return _code_handle->code(); | |
| 269 } | |
| 270 void CompileTask::set_code(nmethod* nm) { | |
| 271 if (_code_handle == NULL && nm == NULL) return; | |
| 272 guarantee(_code_handle != NULL, ""); | |
| 273 _code_handle->set_code(nm); | |
| 274 if (nm == NULL) _code_handle = NULL; // drop the handle also | |
| 275 } | |
| 276 | |
| 277 // ------------------------------------------------------------------ | |
| 278 // CompileTask::free | |
| 279 void CompileTask::free() { | |
| 280 set_code(NULL); | |
| 281 assert(!_lock->is_locked(), "Should not be locked when freed"); | |
| 282 if (_hot_method != NULL && _hot_method != _method) { | |
| 283 JNIHandles::destroy_global(_hot_method); | |
| 284 } | |
| 285 JNIHandles::destroy_global(_method); | |
| 286 } | |
| 287 | |
| 288 | |
| 289 // ------------------------------------------------------------------ | |
| 290 // CompileTask::print | |
| 291 void CompileTask::print() { | |
| 292 tty->print("<CompileTask compile_id=%d ", _compile_id); | |
| 293 tty->print("method="); | |
| 294 ((methodOop)JNIHandles::resolve(_method))->print_name(tty); | |
| 295 tty->print_cr(" osr_bci=%d is_blocking=%s is_complete=%s is_success=%s>", | |
| 296 _osr_bci, bool_to_str(_is_blocking), | |
| 297 bool_to_str(_is_complete), bool_to_str(_is_success)); | |
| 298 } | |
| 299 | |
| 1783 | 300 |
| 0 | 301 // ------------------------------------------------------------------ |
| 302 // CompileTask::print_line_on_error | |
| 303 // | |
| 304 // This function is called by fatal error handler when the thread | |
| 305 // causing troubles is a compiler thread. | |
| 306 // | |
| 307 // Do not grab any lock, do not allocate memory. | |
| 308 // | |
| 309 // Otherwise it's the same as CompileTask::print_line() | |
| 310 // | |
| 311 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) { | |
| 312 // print compiler name | |
| 313 st->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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314 print_compilation(st); |
| 0 | 315 } |
| 316 | |
| 317 // ------------------------------------------------------------------ | |
| 318 // CompileTask::print_line | |
| 319 void CompileTask::print_line() { | |
| 320 ttyLocker ttyl; // keep the following output all in one block | |
| 321 // print compiler name if requested | |
| 322 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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323 print_compilation(); |
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324 } |
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325 |
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326 |
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327 // ------------------------------------------------------------------ |
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328 // CompileTask::print_compilation_impl |
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329 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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330 st->print("%7d ", (int) st->time_stamp().milliseconds()); // print timestamp |
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331 st->print("%4d ", compile_id); // print compilation number |
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332 |
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333 // For unloaded methods the transition to zombie occurs after the |
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334 // method is cleared so it's impossible to report accurate |
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335 // information for that case. |
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336 bool is_synchronized = false; |
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337 bool has_exception_handler = false; |
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338 bool is_native = false; |
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339 if (method != NULL) { |
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340 is_synchronized = method->is_synchronized(); |
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341 has_exception_handler = method->has_exception_handler(); |
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342 is_native = method->is_native(); |
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343 } |
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344 // method attributes |
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345 const char compile_type = is_osr_method ? '%' : ' '; |
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346 const char sync_char = is_synchronized ? 's' : ' '; |
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347 const char exception_char = has_exception_handler ? '!' : ' '; |
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348 const char blocking_char = is_blocking ? 'b' : ' '; |
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349 const char native_char = is_native ? 'n' : ' '; |
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350 |
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351 // print method attributes |
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352 st->print("%c%c%c%c%c ", compile_type, sync_char, exception_char, blocking_char, native_char); |
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353 |
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354 if (TieredCompilation) { |
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355 if (comp_level != -1) st->print("%d ", comp_level); |
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356 else st->print("- "); |
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357 } |
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358 st->print(" "); // more indent |
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359 |
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360 if (method == NULL) { |
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361 st->print("(method)"); |
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362 } else { |
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363 method->print_short_name(st); |
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364 if (is_osr_method) { |
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365 st->print(" @ %d", osr_bci); |
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366 } |
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367 st->print(" (%d bytes)", method->code_size()); |
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368 } |
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369 |
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370 if (msg != NULL) { |
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371 st->print(" %s", msg); |
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372 } |
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373 st->cr(); |
| 0 | 374 } |
| 375 | |
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376 // ------------------------------------------------------------------ |
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377 // CompileTask::print_inlining |
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378 void CompileTask::print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg) { |
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379 // 1234567 |
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380 st->print(" "); // print timestamp |
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381 // 1234 |
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382 st->print(" "); // print compilation number |
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383 |
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384 // method attributes |
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385 const char sync_char = method->is_synchronized() ? 's' : ' '; |
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386 const char exception_char = method->has_exception_handlers() ? '!' : ' '; |
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387 const char monitors_char = method->has_monitor_bytecodes() ? 'm' : ' '; |
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388 |
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389 // print method attributes |
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390 st->print(" %c%c%c ", sync_char, exception_char, monitors_char); |
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391 |
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392 if (TieredCompilation) { |
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393 st->print(" "); |
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394 } |
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395 st->print(" "); // more indent |
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396 st->print(" "); // initial inlining indent |
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397 |
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398 for (int i = 0; i < inline_level; i++) st->print(" "); |
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399 |
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400 st->print("@ %d ", bci); // print bci |
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401 method->print_short_name(st); |
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402 st->print(" (%d bytes)", method->code_size()); |
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403 |
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404 if (msg != NULL) { |
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405 st->print(" %s", msg); |
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406 } |
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407 st->cr(); |
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408 } |
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409 |
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410 // ------------------------------------------------------------------ |
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411 // CompileTask::print_inline_indent |
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412 void CompileTask::print_inline_indent(int inline_level, outputStream* st) { |
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413 // 1234567 |
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414 st->print(" "); // print timestamp |
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415 // 1234 |
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416 st->print(" "); // print compilation number |
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417 // %s!bn |
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418 st->print(" "); // print method attributes |
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419 if (TieredCompilation) { |
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420 st->print(" "); |
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421 } |
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422 st->print(" "); // more indent |
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423 st->print(" "); // initial inlining indent |
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424 for (int i = 0; i < inline_level; i++) st->print(" "); |
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425 } |
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426 |
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427 // ------------------------------------------------------------------ |
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428 // CompileTask::print_compilation |
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429 void CompileTask::print_compilation(outputStream* st) { |
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430 oop rem = JNIHandles::resolve(method_handle()); |
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431 assert(rem != NULL && rem->is_method(), "must be"); |
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432 methodOop method = (methodOop) rem; |
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433 bool is_osr_method = osr_bci() != InvocationEntryBci; |
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434 print_compilation_impl(st, method, compile_id(), comp_level(), is_osr_method, osr_bci(), is_blocking()); |
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435 } |
| 0 | 436 |
| 437 // ------------------------------------------------------------------ | |
| 438 // CompileTask::log_task | |
| 439 void CompileTask::log_task(xmlStream* log) { | |
| 440 Thread* thread = Thread::current(); | |
| 441 methodHandle method(thread, | |
| 442 (methodOop)JNIHandles::resolve(method_handle())); | |
| 443 ResourceMark rm(thread); | |
| 444 | |
| 445 // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'> | |
| 446 if (_compile_id != 0) log->print(" compile_id='%d'", _compile_id); | |
| 447 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 448 log->print(" compile_kind='osr'"); // same as nmethod::compile_kind | |
| 449 } // else compile_kind='c2c' | |
| 450 if (!method.is_null()) log->method(method); | |
| 451 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 452 log->print(" osr_bci='%d'", _osr_bci); | |
| 453 } | |
| 454 if (_comp_level != CompLevel_highest_tier) { | |
| 455 log->print(" level='%d'", _comp_level); | |
| 456 } | |
| 457 if (_is_blocking) { | |
| 458 log->print(" blocking='1'"); | |
| 459 } | |
| 460 log->stamp(); | |
| 461 } | |
| 462 | |
| 463 | |
| 464 // ------------------------------------------------------------------ | |
| 465 // CompileTask::log_task_queued | |
| 466 void CompileTask::log_task_queued() { | |
| 467 Thread* thread = Thread::current(); | |
| 468 ttyLocker ttyl; | |
| 469 ResourceMark rm(thread); | |
| 470 | |
| 471 xtty->begin_elem("task_queued"); | |
| 472 log_task(xtty); | |
| 473 if (_comment != NULL) { | |
| 474 xtty->print(" comment='%s'", _comment); | |
| 475 } | |
| 476 if (_hot_method != NULL) { | |
| 477 methodHandle hot(thread, | |
| 478 (methodOop)JNIHandles::resolve(_hot_method)); | |
| 479 methodHandle method(thread, | |
| 480 (methodOop)JNIHandles::resolve(_method)); | |
| 481 if (hot() != method()) { | |
| 482 xtty->method(hot); | |
| 483 } | |
| 484 } | |
| 485 if (_hot_count != 0) { | |
| 486 xtty->print(" hot_count='%d'", _hot_count); | |
| 487 } | |
| 488 xtty->end_elem(); | |
| 489 } | |
| 490 | |
| 491 | |
| 492 // ------------------------------------------------------------------ | |
| 493 // CompileTask::log_task_start | |
| 494 void CompileTask::log_task_start(CompileLog* log) { | |
| 495 log->begin_head("task"); | |
| 496 log_task(log); | |
| 497 log->end_head(); | |
| 498 } | |
| 499 | |
| 500 | |
| 501 // ------------------------------------------------------------------ | |
| 502 // CompileTask::log_task_done | |
| 503 void CompileTask::log_task_done(CompileLog* log) { | |
| 504 Thread* thread = Thread::current(); | |
| 505 methodHandle method(thread, | |
| 506 (methodOop)JNIHandles::resolve(method_handle())); | |
| 507 ResourceMark rm(thread); | |
| 508 | |
| 509 // <task_done ... stamp='1.234'> </task> | |
| 510 nmethod* nm = code(); | |
| 511 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
| 1748 | 512 _is_success, nm == NULL ? 0 : nm->content_size(), |
| 0 | 513 method->invocation_count()); |
| 514 int bec = method->backedge_count(); | |
| 515 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
| 516 // Note: "_is_complete" is about to be set, but is not. | |
| 517 if (_num_inlined_bytecodes != 0) { | |
| 518 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
| 519 } | |
| 520 log->stamp(); | |
| 521 log->end_elem(); | |
| 522 log->tail("task"); | |
| 523 log->clear_identities(); // next task will have different CI | |
| 524 if (log->unflushed_count() > 2000) { | |
| 525 log->flush(); | |
| 526 } | |
| 527 log->mark_file_end(); | |
| 528 } | |
| 529 | |
| 530 | |
| 531 | |
| 532 // ------------------------------------------------------------------ | |
| 533 // CompileQueue::add | |
| 534 // | |
| 535 // Add a CompileTask to a CompileQueue | |
| 536 void CompileQueue::add(CompileTask* task) { | |
| 537 assert(lock()->owned_by_self(), "must own lock"); | |
| 538 | |
| 539 task->set_next(NULL); | |
| 1783 | 540 task->set_prev(NULL); |
| 0 | 541 |
| 542 if (_last == NULL) { | |
| 543 // The compile queue is empty. | |
| 544 assert(_first == NULL, "queue is empty"); | |
| 545 _first = task; | |
| 546 _last = task; | |
| 547 } else { | |
| 548 // Append the task to the queue. | |
| 549 assert(_last->next() == NULL, "not last"); | |
| 550 _last->set_next(task); | |
| 1783 | 551 task->set_prev(_last); |
| 0 | 552 _last = task; |
| 553 } | |
| 1783 | 554 ++_size; |
| 0 | 555 |
| 556 // Mark the method as being in the compile queue. | |
| 557 ((methodOop)JNIHandles::resolve(task->method_handle()))->set_queued_for_compilation(); | |
| 558 | |
| 559 if (CIPrintCompileQueue) { | |
| 560 print(); | |
| 561 } | |
| 562 | |
| 563 if (LogCompilation && xtty != NULL) { | |
| 564 task->log_task_queued(); | |
| 565 } | |
| 566 | |
| 567 // Notify CompilerThreads that a task is available. | |
| 1783 | 568 lock()->notify_all(); |
| 0 | 569 } |
| 570 | |
| 571 // ------------------------------------------------------------------ | |
| 572 // CompileQueue::get | |
| 573 // | |
| 574 // Get the next CompileTask from a CompileQueue | |
| 575 CompileTask* CompileQueue::get() { | |
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576 NMethodSweeper::possibly_sweep(); |
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577 |
| 0 | 578 MutexLocker locker(lock()); |
| 579 // Wait for an available CompileTask. | |
| 580 while (_first == NULL) { | |
| 581 // There is no work to be done right now. Wait. | |
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582 if (UseCodeCacheFlushing && (!CompileBroker::should_compile_new_jobs() || CodeCache::needs_flushing())) { |
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583 // During the emergency sweeping periods, wake up and sweep occasionally |
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584 bool timedout = lock()->wait(!Mutex::_no_safepoint_check_flag, NmethodSweepCheckInterval*1000); |
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585 if (timedout) { |
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586 MutexUnlocker ul(lock()); |
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587 // When otherwise not busy, run nmethod sweeping |
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588 NMethodSweeper::possibly_sweep(); |
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589 } |
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590 } else { |
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591 // During normal operation no need to wake up on timer |
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592 lock()->wait(); |
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593 } |
| 0 | 594 } |
| 1783 | 595 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
| 596 remove(task); | |
| 597 return task; | |
| 598 } | |
| 0 | 599 |
| 1783 | 600 void CompileQueue::remove(CompileTask* task) |
| 601 { | |
| 602 assert(lock()->owned_by_self(), "must own lock"); | |
| 603 if (task->prev() != NULL) { | |
| 604 task->prev()->set_next(task->next()); | |
| 605 } else { | |
| 606 // max is the first element | |
| 607 assert(task == _first, "Sanity"); | |
| 608 _first = task->next(); | |
| 0 | 609 } |
| 610 | |
| 1783 | 611 if (task->next() != NULL) { |
| 612 task->next()->set_prev(task->prev()); | |
| 613 } else { | |
| 614 // max is the last element | |
| 615 assert(task == _last, "Sanity"); | |
| 616 _last = task->prev(); | |
| 617 } | |
| 618 --_size; | |
| 0 | 619 } |
| 620 | |
| 621 // ------------------------------------------------------------------ | |
| 622 // CompileQueue::print | |
| 623 void CompileQueue::print() { | |
| 624 tty->print_cr("Contents of %s", name()); | |
| 625 tty->print_cr("----------------------"); | |
| 626 CompileTask* task = _first; | |
| 627 while (task != NULL) { | |
| 628 task->print_line(); | |
| 629 task = task->next(); | |
| 630 } | |
| 631 tty->print_cr("----------------------"); | |
| 632 } | |
| 633 | |
| 634 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
| 635 | |
| 636 _current_method[0] = '\0'; | |
| 637 _compile_type = CompileBroker::no_compile; | |
| 638 | |
| 639 if (UsePerfData) { | |
| 640 ResourceMark rm; | |
| 641 | |
| 642 // create the thread instance name space string - don't create an | |
| 643 // instance subspace if instance is -1 - keeps the adapterThread | |
| 644 // counters from having a ".0" namespace. | |
| 645 const char* thread_i = (instance == -1) ? thread_name : | |
| 646 PerfDataManager::name_space(thread_name, instance); | |
| 647 | |
| 648 | |
| 649 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
| 650 _perf_current_method = | |
| 651 PerfDataManager::create_string_variable(SUN_CI, name, | |
| 652 cmname_buffer_length, | |
| 653 _current_method, CHECK); | |
| 654 | |
| 655 name = PerfDataManager::counter_name(thread_i, "type"); | |
| 656 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
| 657 PerfData::U_None, | |
| 658 (jlong)_compile_type, | |
| 659 CHECK); | |
| 660 | |
| 661 name = PerfDataManager::counter_name(thread_i, "time"); | |
| 662 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
| 663 PerfData::U_Ticks, CHECK); | |
| 664 | |
| 665 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
| 666 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
| 667 PerfData::U_Events, CHECK); | |
| 668 } | |
| 669 } | |
| 670 | |
| 671 // ------------------------------------------------------------------ | |
| 672 // CompileBroker::compilation_init | |
| 673 // | |
| 674 // Initialize the Compilation object | |
| 675 void CompileBroker::compilation_init() { | |
| 676 _last_method_compiled[0] = '\0'; | |
| 677 | |
| 1970 | 678 #ifndef SHARK |
| 0 | 679 // Set the interface to the current compiler(s). |
| 1783 | 680 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
| 681 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
| 0 | 682 #ifdef COMPILER1 |
| 1783 | 683 if (c1_count > 0) { |
| 684 _compilers[0] = new Compiler(); | |
| 685 } | |
| 0 | 686 #endif // COMPILER1 |
| 687 | |
| 688 #ifdef COMPILER2 | |
| 1783 | 689 if (c2_count > 0) { |
| 690 _compilers[1] = new C2Compiler(); | |
| 691 } | |
| 0 | 692 #endif // COMPILER2 |
| 693 | |
| 1970 | 694 #else // SHARK |
| 695 int c1_count = 0; | |
| 696 int c2_count = 1; | |
| 697 | |
| 698 _compilers[1] = new SharkCompiler(); | |
| 699 #endif // SHARK | |
| 1692 | 700 |
| 0 | 701 // Initialize the CompileTask free list |
| 702 _task_free_list = NULL; | |
| 703 | |
| 704 // Start the CompilerThreads | |
| 1783 | 705 init_compiler_threads(c1_count, c2_count); |
| 0 | 706 // totalTime performance counter is always created as it is required |
| 707 // by the implementation of java.lang.management.CompilationMBean. | |
| 708 { | |
| 709 EXCEPTION_MARK; | |
| 710 _perf_total_compilation = | |
| 711 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
| 712 PerfData::U_Ticks, CHECK); | |
| 713 } | |
| 714 | |
| 715 | |
| 716 if (UsePerfData) { | |
| 717 | |
| 718 EXCEPTION_MARK; | |
| 719 | |
| 720 // create the jvmstat performance counters | |
| 721 _perf_osr_compilation = | |
| 722 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
| 723 PerfData::U_Ticks, CHECK); | |
| 724 | |
| 725 _perf_standard_compilation = | |
| 726 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
| 727 PerfData::U_Ticks, CHECK); | |
| 728 | |
| 729 _perf_total_bailout_count = | |
| 730 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
| 731 PerfData::U_Events, CHECK); | |
| 732 | |
| 733 _perf_total_invalidated_count = | |
| 734 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
| 735 PerfData::U_Events, CHECK); | |
| 736 | |
| 737 _perf_total_compile_count = | |
| 738 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
| 739 PerfData::U_Events, CHECK); | |
| 740 _perf_total_osr_compile_count = | |
| 741 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
| 742 PerfData::U_Events, CHECK); | |
| 743 | |
| 744 _perf_total_standard_compile_count = | |
| 745 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
| 746 PerfData::U_Events, CHECK); | |
| 747 | |
| 748 _perf_sum_osr_bytes_compiled = | |
| 749 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
| 750 PerfData::U_Bytes, CHECK); | |
| 751 | |
| 752 _perf_sum_standard_bytes_compiled = | |
| 753 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
| 754 PerfData::U_Bytes, CHECK); | |
| 755 | |
| 756 _perf_sum_nmethod_size = | |
| 757 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
| 758 PerfData::U_Bytes, CHECK); | |
| 759 | |
| 760 _perf_sum_nmethod_code_size = | |
| 761 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
| 762 PerfData::U_Bytes, CHECK); | |
| 763 | |
| 764 _perf_last_method = | |
| 765 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
| 766 CompilerCounters::cmname_buffer_length, | |
| 767 "", CHECK); | |
| 768 | |
| 769 _perf_last_failed_method = | |
| 770 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
| 771 CompilerCounters::cmname_buffer_length, | |
| 772 "", CHECK); | |
| 773 | |
| 774 _perf_last_invalidated_method = | |
| 775 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
| 776 CompilerCounters::cmname_buffer_length, | |
| 777 "", CHECK); | |
| 778 | |
| 779 _perf_last_compile_type = | |
| 780 PerfDataManager::create_variable(SUN_CI, "lastType", | |
| 781 PerfData::U_None, | |
| 782 (jlong)CompileBroker::no_compile, | |
| 783 CHECK); | |
| 784 | |
| 785 _perf_last_compile_size = | |
| 786 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
| 787 PerfData::U_Bytes, | |
| 788 (jlong)CompileBroker::no_compile, | |
| 789 CHECK); | |
| 790 | |
| 791 | |
| 792 _perf_last_failed_type = | |
| 793 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
| 794 PerfData::U_None, | |
| 795 (jlong)CompileBroker::no_compile, | |
| 796 CHECK); | |
| 797 | |
| 798 _perf_last_invalidated_type = | |
| 799 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
| 800 PerfData::U_None, | |
| 801 (jlong)CompileBroker::no_compile, | |
| 802 CHECK); | |
| 803 } | |
| 804 | |
| 805 _initialized = true; | |
| 806 } | |
| 807 | |
| 808 | |
| 809 | |
| 810 // ------------------------------------------------------------------ | |
| 811 // CompileBroker::make_compiler_thread | |
| 812 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS) { | |
| 813 CompilerThread* compiler_thread = NULL; | |
| 814 | |
| 815 klassOop k = | |
|
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816 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_Thread(), |
| 0 | 817 true, CHECK_0); |
| 818 instanceKlassHandle klass (THREAD, k); | |
| 819 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
| 820 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
| 821 | |
| 822 // Initialize thread_oop to put it into the system threadGroup | |
| 823 Handle thread_group (THREAD, Universe::system_thread_group()); | |
| 824 JavaValue result(T_VOID); | |
| 825 JavaCalls::call_special(&result, thread_oop, | |
| 826 klass, | |
|
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827 vmSymbols::object_initializer_name(), |
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828 vmSymbols::threadgroup_string_void_signature(), |
| 0 | 829 thread_group, |
| 830 string, | |
| 831 CHECK_0); | |
| 832 | |
| 833 { | |
| 834 MutexLocker mu(Threads_lock, THREAD); | |
| 835 compiler_thread = new CompilerThread(queue, counters); | |
| 836 // At this point the new CompilerThread data-races with this startup | |
| 837 // thread (which I believe is the primoridal thread and NOT the VM | |
| 838 // thread). This means Java bytecodes being executed at startup can | |
| 839 // queue compile jobs which will run at whatever default priority the | |
| 840 // newly created CompilerThread runs at. | |
| 841 | |
| 842 | |
| 843 // At this point it may be possible that no osthread was created for the | |
| 844 // JavaThread due to lack of memory. We would have to throw an exception | |
| 845 // in that case. However, since this must work and we do not allow | |
| 846 // exceptions anyway, check and abort if this fails. | |
| 847 | |
| 848 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
| 849 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
| 850 "unable to create new native thread"); | |
| 851 } | |
| 852 | |
| 853 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
| 854 | |
| 855 // Note that this only sets the JavaThread _priority field, which by | |
| 856 // definition is limited to Java priorities and not OS priorities. | |
| 857 // The os-priority is set in the CompilerThread startup code itself | |
| 858 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); | |
| 859 // CLEANUP PRIORITIES: This -if- statement hids a bug whereby the compiler | |
| 860 // threads never have their OS priority set. The assumption here is to | |
| 861 // enable the Performance group to do flag tuning, figure out a suitable | |
| 862 // CompilerThreadPriority, and then remove this 'if' statement (and | |
| 863 // comment) and unconditionally set the priority. | |
| 864 | |
| 865 // Compiler Threads should be at the highest Priority | |
| 866 if ( CompilerThreadPriority != -1 ) | |
| 867 os::set_native_priority( compiler_thread, CompilerThreadPriority ); | |
| 868 else | |
| 869 os::set_native_priority( compiler_thread, os::java_to_os_priority[NearMaxPriority]); | |
| 870 | |
| 871 // Note that I cannot call os::set_priority because it expects Java | |
| 872 // priorities and I am *explicitly* using OS priorities so that it's | |
| 873 // possible to set the compiler thread priority higher than any Java | |
| 874 // thread. | |
| 875 | |
| 876 java_lang_Thread::set_daemon(thread_oop()); | |
| 877 | |
| 878 compiler_thread->set_threadObj(thread_oop()); | |
| 879 Threads::add(compiler_thread); | |
| 880 Thread::start(compiler_thread); | |
| 881 } | |
| 882 // Let go of Threads_lock before yielding | |
| 883 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
| 884 | |
| 885 return compiler_thread; | |
| 886 } | |
| 887 | |
| 888 | |
| 889 // ------------------------------------------------------------------ | |
| 890 // CompileBroker::init_compiler_threads | |
| 891 // | |
| 892 // Initialize the compilation queue | |
| 1783 | 893 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
| 0 | 894 EXCEPTION_MARK; |
| 2447 | 895 #if !defined(ZERO) && !defined(SHARK) |
| 1783 | 896 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
| 2447 | 897 #endif // !ZERO && !SHARK |
| 1783 | 898 if (c2_compiler_count > 0) { |
| 899 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
| 900 } | |
| 901 if (c1_compiler_count > 0) { | |
| 902 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
| 903 } | |
| 0 | 904 |
| 1783 | 905 int compiler_count = c1_compiler_count + c2_compiler_count; |
| 906 | |
| 0 | 907 _method_threads = |
| 908 new (ResourceObj::C_HEAP) GrowableArray<CompilerThread*>(compiler_count, true); | |
| 909 | |
| 910 char name_buffer[256]; | |
| 1783 | 911 for (int i = 0; i < c2_compiler_count; i++) { |
| 0 | 912 // Create a name for our thread. |
| 1783 | 913 sprintf(name_buffer, "C2 CompilerThread%d", i); |
| 0 | 914 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
| 1783 | 915 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, CHECK); |
| 0 | 916 _method_threads->append(new_thread); |
| 917 } | |
| 1783 | 918 |
| 919 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
| 920 // Create a name for our thread. | |
| 921 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
| 922 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
| 923 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, CHECK); | |
| 924 _method_threads->append(new_thread); | |
| 925 } | |
| 926 | |
| 0 | 927 if (UsePerfData) { |
| 928 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, | |
| 929 compiler_count, CHECK); | |
| 930 } | |
| 931 } | |
| 932 | |
| 933 // ------------------------------------------------------------------ | |
| 934 // CompileBroker::is_idle | |
| 935 bool CompileBroker::is_idle() { | |
| 1783 | 936 if (_c2_method_queue != NULL && !_c2_method_queue->is_empty()) { |
| 937 return false; | |
| 938 } else if (_c1_method_queue != NULL && !_c1_method_queue->is_empty()) { | |
| 0 | 939 return false; |
| 940 } else { | |
| 941 int num_threads = _method_threads->length(); | |
| 942 for (int i=0; i<num_threads; i++) { | |
| 943 if (_method_threads->at(i)->task() != NULL) { | |
| 944 return false; | |
| 945 } | |
| 946 } | |
| 947 | |
| 948 // No pending or active compilations. | |
| 949 return true; | |
| 950 } | |
| 951 } | |
| 952 | |
| 953 | |
| 954 // ------------------------------------------------------------------ | |
| 955 // CompileBroker::compile_method | |
| 956 // | |
| 957 // Request compilation of a method. | |
| 958 void CompileBroker::compile_method_base(methodHandle method, | |
| 959 int osr_bci, | |
| 960 int comp_level, | |
| 961 methodHandle hot_method, | |
| 962 int hot_count, | |
| 963 const char* comment, | |
| 964 TRAPS) { | |
| 965 // do nothing if compiler thread(s) is not available | |
| 966 if (!_initialized ) { | |
| 967 return; | |
| 968 } | |
| 969 | |
| 970 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
| 971 assert(method->method_holder()->klass_part()->oop_is_instance(), | |
| 972 "sanity check"); | |
| 973 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), | |
| 974 "method holder must be initialized"); | |
| 975 | |
| 976 if (CIPrintRequests) { | |
| 977 tty->print("request: "); | |
| 978 method->print_short_name(tty); | |
| 979 if (osr_bci != InvocationEntryBci) { | |
| 980 tty->print(" osr_bci: %d", osr_bci); | |
| 981 } | |
| 982 tty->print(" comment: %s count: %d", comment, hot_count); | |
| 983 if (!hot_method.is_null()) { | |
| 984 tty->print(" hot: "); | |
| 985 if (hot_method() != method()) { | |
| 986 hot_method->print_short_name(tty); | |
| 987 } else { | |
| 988 tty->print("yes"); | |
| 989 } | |
| 990 } | |
| 991 tty->cr(); | |
| 992 } | |
| 993 | |
| 994 // A request has been made for compilation. Before we do any | |
| 995 // real work, check to see if the method has been compiled | |
| 996 // in the meantime with a definitive result. | |
| 997 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 998 return; | |
| 999 } | |
| 1000 | |
| 2403 | 1001 #ifndef PRODUCT |
| 1002 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) { | |
| 1003 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) { | |
| 1004 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI. | |
| 1005 return; | |
| 1006 } | |
| 1007 } | |
| 1008 #endif | |
| 1783 | 1009 |
| 0 | 1010 // If this method is already in the compile queue, then |
| 1011 // we do not block the current thread. | |
| 1012 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1013 // We may want to decay our counter a bit here to prevent | |
| 1014 // multiple denied requests for compilation. This is an | |
| 1015 // open compilation policy issue. Note: The other possibility, | |
| 1016 // in the case that this is a blocking compile request, is to have | |
| 1017 // all subsequent blocking requesters wait for completion of | |
| 1018 // ongoing compiles. Note that in this case we'll need a protocol | |
| 1019 // for freeing the associated compile tasks. [Or we could have | |
| 1020 // a single static monitor on which all these waiters sleep.] | |
| 1021 return; | |
| 1022 } | |
| 1023 | |
|
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1024 // If the requesting thread is holding the pending list lock |
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1025 // then we just return. We can't risk blocking while holding |
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1026 // the pending list lock or a 3-way deadlock may occur |
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1027 // between the reference handler thread, a GC (instigated |
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1028 // by a compiler thread), and compiled method registration. |
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1029 if (instanceRefKlass::owns_pending_list_lock(JavaThread::current())) { |
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1030 return; |
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1031 } |
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1032 |
| 0 | 1033 // Outputs from the following MutexLocker block: |
| 1034 CompileTask* task = NULL; | |
| 1035 bool blocking = false; | |
| 1783 | 1036 CompileQueue* queue = compile_queue(comp_level); |
| 0 | 1037 |
| 1038 // Acquire our lock. | |
| 1039 { | |
| 1783 | 1040 MutexLocker locker(queue->lock(), THREAD); |
| 0 | 1041 |
| 1042 // Make sure the method has not slipped into the queues since | |
| 1043 // last we checked; note that those checks were "fast bail-outs". | |
| 1044 // Here we need to be more careful, see 14012000 below. | |
| 1045 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1046 return; | |
| 1047 } | |
| 1048 | |
| 1049 // We need to check again to see if the compilation has | |
| 1050 // completed. A previous compilation may have registered | |
| 1051 // some result. | |
| 1052 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1053 return; | |
| 1054 } | |
| 1055 | |
| 1056 // We now know that this compilation is not pending, complete, | |
| 1057 // or prohibited. Assign a compile_id to this compilation | |
| 1058 // and check to see if it is in our [Start..Stop) range. | |
| 1059 uint compile_id = assign_compile_id(method, osr_bci); | |
| 1060 if (compile_id == 0) { | |
| 1061 // The compilation falls outside the allowed range. | |
| 1062 return; | |
| 1063 } | |
| 1064 | |
| 1065 // Should this thread wait for completion of the compile? | |
| 1066 blocking = is_compile_blocking(method, osr_bci); | |
| 1067 | |
| 1068 // We will enter the compilation in the queue. | |
| 1069 // 14012000: Note that this sets the queued_for_compile bits in | |
| 1070 // the target method. We can now reason that a method cannot be | |
| 1071 // queued for compilation more than once, as follows: | |
| 1072 // Before a thread queues a task for compilation, it first acquires | |
| 1073 // the compile queue lock, then checks if the method's queued bits | |
| 1074 // are set or it has already been compiled. Thus there can not be two | |
| 1075 // instances of a compilation task for the same method on the | |
| 1076 // compilation queue. Consider now the case where the compilation | |
| 1077 // thread has already removed a task for that method from the queue | |
| 1078 // and is in the midst of compiling it. In this case, the | |
| 1079 // queued_for_compile bits must be set in the method (and these | |
| 1080 // will be visible to the current thread, since the bits were set | |
| 1081 // under protection of the compile queue lock, which we hold now. | |
| 1082 // When the compilation completes, the compiler thread first sets | |
| 1083 // the compilation result and then clears the queued_for_compile | |
| 1084 // bits. Neither of these actions are protected by a barrier (or done | |
| 1085 // under the protection of a lock), so the only guarantee we have | |
| 1086 // (on machines with TSO (Total Store Order)) is that these values | |
| 1087 // will update in that order. As a result, the only combinations of | |
| 1088 // these bits that the current thread will see are, in temporal order: | |
| 1089 // <RESULT, QUEUE> : | |
| 1090 // <0, 1> : in compile queue, but not yet compiled | |
| 1091 // <1, 1> : compiled but queue bit not cleared | |
| 1092 // <1, 0> : compiled and queue bit cleared | |
| 1093 // Because we first check the queue bits then check the result bits, | |
| 1094 // we are assured that we cannot introduce a duplicate task. | |
| 1095 // Note that if we did the tests in the reverse order (i.e. check | |
| 1096 // result then check queued bit), we could get the result bit before | |
| 1097 // the compilation completed, and the queue bit after the compilation | |
| 1098 // completed, and end up introducing a "duplicate" (redundant) task. | |
| 1099 // In that case, the compiler thread should first check if a method | |
| 1100 // has already been compiled before trying to compile it. | |
| 1101 // NOTE: in the event that there are multiple compiler threads and | |
| 1102 // there is de-optimization/recompilation, things will get hairy, | |
| 1103 // and in that case it's best to protect both the testing (here) of | |
| 1104 // these bits, and their updating (here and elsewhere) under a | |
| 1105 // common lock. | |
| 1783 | 1106 task = create_compile_task(queue, |
| 0 | 1107 compile_id, method, |
| 1108 osr_bci, comp_level, | |
| 1109 hot_method, hot_count, comment, | |
| 1110 blocking); | |
| 1111 } | |
| 1112 | |
| 1113 if (blocking) { | |
| 1114 wait_for_completion(task); | |
| 1115 } | |
| 1116 } | |
| 1117 | |
| 1118 | |
| 1119 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
| 1783 | 1120 int comp_level, |
| 0 | 1121 methodHandle hot_method, int hot_count, |
| 1122 const char* comment, TRAPS) { | |
| 1123 // make sure arguments make sense | |
| 1124 assert(method->method_holder()->klass_part()->oop_is_instance(), "not an instance method"); | |
| 1125 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); | |
| 1126 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
| 1127 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), "method holder must be initialized"); | |
| 1128 | |
| 1783 | 1129 if (!TieredCompilation) { |
| 1130 comp_level = CompLevel_highest_tier; | |
| 0 | 1131 } |
| 1132 | |
| 1133 // return quickly if possible | |
| 1134 | |
| 1135 // lock, make sure that the compilation | |
| 1136 // isn't prohibited in a straightforward way. | |
| 1137 | |
| 1138 if (compiler(comp_level) == NULL || compilation_is_prohibited(method, osr_bci, comp_level)) { | |
| 1139 return NULL; | |
| 1140 } | |
| 1141 | |
| 1142 if (osr_bci == InvocationEntryBci) { | |
| 1143 // standard compilation | |
| 1144 nmethod* method_code = method->code(); | |
| 1783 | 1145 if (method_code != NULL) { |
| 1146 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1147 return method_code; | |
| 1148 } | |
| 0 | 1149 } |
| 1150 if (method->is_not_compilable(comp_level)) return NULL; | |
| 1202 | 1151 |
|
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1152 if (UseCodeCacheFlushing) { |
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1153 nmethod* saved = CodeCache::find_and_remove_saved_code(method()); |
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1154 if (saved != NULL) { |
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1155 method->set_code(method, saved); |
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1156 return saved; |
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|
1157 } |
| 1202 | 1158 } |
| 1159 | |
| 0 | 1160 } else { |
| 1161 // osr compilation | |
| 1162 #ifndef TIERED | |
| 1163 // seems like an assert of dubious value | |
| 1783 | 1164 assert(comp_level == CompLevel_highest_tier, |
| 0 | 1165 "all OSR compiles are assumed to be at a single compilation lavel"); |
| 1166 #endif // TIERED | |
| 1783 | 1167 // We accept a higher level osr method |
| 1168 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1169 if (nm != NULL) return nm; |
| 1170 if (method->is_not_osr_compilable()) return NULL; | |
| 1171 } | |
| 1172 | |
| 1173 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
| 1174 // some prerequisites that are compiler specific | |
| 2447 | 1175 if (compiler(comp_level)->is_c2() || compiler(comp_level)->is_shark()) { |
| 0 | 1176 method->constants()->resolve_string_constants(CHECK_0); |
| 1177 // Resolve all classes seen in the signature of the method | |
| 1178 // we are compiling. | |
| 1179 methodOopDesc::load_signature_classes(method, CHECK_0); | |
| 1180 } | |
| 1181 | |
| 1182 // If the method is native, do the lookup in the thread requesting | |
| 1183 // the compilation. Native lookups can load code, which is not | |
| 1184 // permitted during compilation. | |
| 1185 // | |
| 1186 // Note: A native method implies non-osr compilation which is | |
| 1187 // checked with an assertion at the entry of this method. | |
| 1188 if (method->is_native()) { | |
| 1189 bool in_base_library; | |
| 1190 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
| 1191 if (HAS_PENDING_EXCEPTION) { | |
| 1192 // In case of an exception looking up the method, we just forget | |
| 1193 // about it. The interpreter will kick-in and throw the exception. | |
| 1194 method->set_not_compilable(); // implies is_not_osr_compilable() | |
| 1195 CLEAR_PENDING_EXCEPTION; | |
| 1196 return NULL; | |
| 1197 } | |
| 1198 assert(method->has_native_function(), "must have native code by now"); | |
| 1199 } | |
| 1200 | |
| 1201 // RedefineClasses() has replaced this method; just return | |
| 1202 if (method->is_old()) { | |
| 1203 return NULL; | |
| 1204 } | |
| 1205 | |
| 1206 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
| 1207 // a lock the compiling thread can not acquire. Prefetch it here. | |
| 1208 if (JvmtiExport::should_post_compiled_method_load()) { | |
| 1209 method->jmethod_id(); | |
| 1210 } | |
| 1211 | |
| 1202 | 1212 // If the compiler is shut off due to code cache flushing or otherwise, |
| 1213 // fail out now so blocking compiles dont hang the java thread | |
| 1214 if (!should_compile_new_jobs() || (UseCodeCacheFlushing && CodeCache::needs_flushing())) { | |
| 1783 | 1215 CompilationPolicy::policy()->delay_compilation(method()); |
| 1202 | 1216 return NULL; |
| 1217 } | |
| 1218 | |
| 0 | 1219 // do the compilation |
| 1220 if (method->is_native()) { | |
| 1221 if (!PreferInterpreterNativeStubs) { | |
|
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1222 // Acquire our lock. |
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1223 int compile_id; |
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1224 { |
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1225 MutexLocker locker(MethodCompileQueue_lock, THREAD); |
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1226 compile_id = assign_compile_id(method, standard_entry_bci); |
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1227 } |
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1228 (void) AdapterHandlerLibrary::create_native_wrapper(method, compile_id); |
| 0 | 1229 } else { |
| 1230 return NULL; | |
| 1231 } | |
| 1232 } else { | |
| 1233 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, CHECK_0); | |
| 1234 } | |
| 1235 | |
| 1236 // return requested nmethod | |
| 1783 | 1237 // We accept a higher level osr method |
| 1238 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1239 } |
| 1240 | |
| 1241 | |
| 1242 // ------------------------------------------------------------------ | |
| 1243 // CompileBroker::compilation_is_complete | |
| 1244 // | |
| 1245 // See if compilation of this method is already complete. | |
| 1246 bool CompileBroker::compilation_is_complete(methodHandle method, | |
| 1247 int osr_bci, | |
| 1248 int comp_level) { | |
| 1249 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1250 if (is_osr) { | |
| 1251 if (method->is_not_osr_compilable()) { | |
| 1252 return true; | |
| 1253 } else { | |
| 1783 | 1254 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
| 0 | 1255 return (result != NULL); |
| 1256 } | |
| 1257 } else { | |
| 1258 if (method->is_not_compilable(comp_level)) { | |
| 1259 return true; | |
| 1260 } else { | |
| 1261 nmethod* result = method->code(); | |
| 1262 if (result == NULL) return false; | |
| 1783 | 1263 return comp_level == result->comp_level(); |
| 0 | 1264 } |
| 1265 } | |
| 1266 } | |
| 1267 | |
| 1268 | |
| 1269 // ------------------------------------------------------------------ | |
| 1270 // CompileBroker::compilation_is_in_queue | |
| 1271 // | |
| 1272 // See if this compilation is already requested. | |
| 1273 // | |
| 1274 // Implementation note: there is only a single "is in queue" bit | |
| 1275 // for each method. This means that the check below is overly | |
| 1276 // conservative in the sense that an osr compilation in the queue | |
| 1277 // will block a normal compilation from entering the queue (and vice | |
| 1278 // versa). This can be remedied by a full queue search to disambiguate | |
| 1279 // cases. If it is deemed profitible, this may be done. | |
| 1280 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
| 1783 | 1281 int osr_bci) { |
| 0 | 1282 return method->queued_for_compilation(); |
| 1283 } | |
| 1284 | |
| 1285 // ------------------------------------------------------------------ | |
| 1286 // CompileBroker::compilation_is_prohibited | |
| 1287 // | |
| 1288 // See if this compilation is not allowed. | |
| 1289 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
| 1290 bool is_native = method->is_native(); | |
| 1291 // Some compilers may not support the compilation of natives. | |
| 1292 if (is_native && | |
| 1293 (!CICompileNatives || !compiler(comp_level)->supports_native())) { | |
| 1783 | 1294 method->set_not_compilable_quietly(comp_level); |
| 0 | 1295 return true; |
| 1296 } | |
| 1297 | |
| 1298 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1299 // Some compilers may not support on stack replacement. | |
| 1300 if (is_osr && | |
| 1301 (!CICompileOSR || !compiler(comp_level)->supports_osr())) { | |
| 1302 method->set_not_osr_compilable(); | |
| 1303 return true; | |
| 1304 } | |
| 1305 | |
| 1306 // The method may be explicitly excluded by the user. | |
| 1307 bool quietly; | |
| 1308 if (CompilerOracle::should_exclude(method, quietly)) { | |
| 1309 if (!quietly) { | |
| 1310 // This does not happen quietly... | |
| 1311 ResourceMark rm; | |
| 1312 tty->print("### Excluding %s:%s", | |
| 1313 method->is_native() ? "generation of native wrapper" : "compile", | |
| 1314 (method->is_static() ? " static" : "")); | |
| 1315 method->print_short_name(tty); | |
| 1316 tty->cr(); | |
| 1317 } | |
|
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1318 method->set_not_compilable_quietly(); |
| 0 | 1319 } |
| 1320 | |
| 1321 return false; | |
| 1322 } | |
| 1323 | |
| 1324 | |
| 1325 // ------------------------------------------------------------------ | |
| 1326 // CompileBroker::assign_compile_id | |
| 1327 // | |
| 1328 // Assign a serialized id number to this compilation request. If the | |
| 1329 // number falls out of the allowed range, return a 0. OSR | |
| 1330 // compilations may be numbered separately from regular compilations | |
| 1331 // if certain debugging flags are used. | |
| 1332 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
| 1783 | 1333 assert(MethodCompileQueue_lock->owner() == Thread::current(), |
| 0 | 1334 "must hold the compilation queue lock"); |
| 1335 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1336 uint id; | |
| 1337 if (CICountOSR && is_osr) { | |
| 1338 id = ++_osr_compilation_id; | |
| 1339 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
| 1340 return id; | |
| 1341 } | |
| 1342 } else { | |
| 1343 id = ++_compilation_id; | |
| 1344 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
| 1345 return id; | |
| 1346 } | |
| 1347 } | |
| 1348 | |
| 1349 // Method was not in the appropriate compilation range. | |
|
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1350 method->set_not_compilable_quietly(); |
| 0 | 1351 return 0; |
| 1352 } | |
| 1353 | |
| 1354 | |
| 1355 // ------------------------------------------------------------------ | |
| 1356 // CompileBroker::is_compile_blocking | |
| 1357 // | |
| 1358 // Should the current thread be blocked until this compilation request | |
| 1359 // has been fulfilled? | |
| 1360 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
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1361 assert(!instanceRefKlass::owns_pending_list_lock(JavaThread::current()), "possible deadlock"); |
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1362 return !BackgroundCompilation; |
| 0 | 1363 } |
| 1364 | |
| 1365 | |
| 1366 // ------------------------------------------------------------------ | |
| 1367 // CompileBroker::preload_classes | |
| 1368 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
| 1369 // Move this code over from c1_Compiler.cpp | |
| 1370 ShouldNotReachHere(); | |
| 1371 } | |
| 1372 | |
| 1373 | |
| 1374 // ------------------------------------------------------------------ | |
| 1375 // CompileBroker::create_compile_task | |
| 1376 // | |
| 1377 // Create a CompileTask object representing the current request for | |
| 1378 // compilation. Add this task to the queue. | |
| 1379 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
| 1380 int compile_id, | |
| 1381 methodHandle method, | |
| 1382 int osr_bci, | |
| 1383 int comp_level, | |
| 1384 methodHandle hot_method, | |
| 1385 int hot_count, | |
| 1386 const char* comment, | |
| 1387 bool blocking) { | |
| 1388 CompileTask* new_task = allocate_task(); | |
| 1389 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
| 1390 hot_method, hot_count, comment, | |
| 1391 blocking); | |
| 1392 queue->add(new_task); | |
| 1393 return new_task; | |
| 1394 } | |
| 1395 | |
| 1396 | |
| 1397 // ------------------------------------------------------------------ | |
| 1398 // CompileBroker::allocate_task | |
| 1399 // | |
| 1400 // Allocate a CompileTask, from the free list if possible. | |
| 1401 CompileTask* CompileBroker::allocate_task() { | |
| 1402 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1403 CompileTask* task = NULL; | |
| 1404 if (_task_free_list != NULL) { | |
| 1405 task = _task_free_list; | |
| 1406 _task_free_list = task->next(); | |
| 1407 task->set_next(NULL); | |
| 1408 } else { | |
| 1409 task = new CompileTask(); | |
| 1410 task->set_next(NULL); | |
| 1411 } | |
| 1412 return task; | |
| 1413 } | |
| 1414 | |
| 1415 | |
| 1416 // ------------------------------------------------------------------ | |
| 1417 // CompileBroker::free_task | |
| 1418 // | |
| 1419 // Add a task to the free list. | |
| 1420 void CompileBroker::free_task(CompileTask* task) { | |
| 1421 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1422 task->free(); | |
| 1423 task->set_next(_task_free_list); | |
| 1424 _task_free_list = task; | |
| 1425 } | |
| 1426 | |
| 1427 | |
| 1428 // ------------------------------------------------------------------ | |
| 1429 // CompileBroker::wait_for_completion | |
| 1430 // | |
| 1431 // Wait for the given method CompileTask to complete. | |
| 1432 void CompileBroker::wait_for_completion(CompileTask* task) { | |
| 1433 if (CIPrintCompileQueue) { | |
| 1434 tty->print_cr("BLOCKING FOR COMPILE"); | |
| 1435 } | |
| 1436 | |
| 1437 assert(task->is_blocking(), "can only wait on blocking task"); | |
| 1438 | |
| 1439 JavaThread *thread = JavaThread::current(); | |
| 1440 thread->set_blocked_on_compilation(true); | |
| 1441 | |
| 1442 methodHandle method(thread, | |
| 1443 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1444 { | |
| 1445 MutexLocker waiter(task->lock(), thread); | |
| 1446 | |
| 1447 while (!task->is_complete()) | |
| 1448 task->lock()->wait(); | |
| 1449 } | |
| 1450 // It is harmless to check this status without the lock, because | |
| 1451 // completion is a stable property (until the task object is recycled). | |
| 1452 assert(task->is_complete(), "Compilation should have completed"); | |
| 1453 assert(task->code_handle() == NULL, "must be reset"); | |
| 1454 | |
| 1455 thread->set_blocked_on_compilation(false); | |
| 1456 | |
| 1457 // By convention, the waiter is responsible for recycling a | |
| 1458 // blocking CompileTask. Since there is only one waiter ever | |
| 1459 // waiting on a CompileTask, we know that no one else will | |
| 1460 // be using this CompileTask; we can free it. | |
| 1461 free_task(task); | |
| 1462 } | |
| 1463 | |
| 1464 // ------------------------------------------------------------------ | |
| 1465 // CompileBroker::compiler_thread_loop | |
| 1466 // | |
| 1467 // The main loop run by a CompilerThread. | |
| 1468 void CompileBroker::compiler_thread_loop() { | |
| 1469 CompilerThread* thread = CompilerThread::current(); | |
| 1470 CompileQueue* queue = thread->queue(); | |
| 1471 | |
| 1472 // For the thread that initializes the ciObjectFactory | |
| 1473 // this resource mark holds all the shared objects | |
| 1474 ResourceMark rm; | |
| 1475 | |
| 1476 // First thread to get here will initialize the compiler interface | |
| 1477 | |
| 1478 if (!ciObjectFactory::is_initialized()) { | |
| 1479 ASSERT_IN_VM; | |
| 1480 MutexLocker only_one (CompileThread_lock, thread); | |
| 1481 if (!ciObjectFactory::is_initialized()) { | |
| 1482 ciObjectFactory::initialize(); | |
| 1483 } | |
| 1484 } | |
| 1485 | |
| 1486 // Open a log. | |
| 1487 if (LogCompilation) { | |
| 1488 init_compiler_thread_log(); | |
| 1489 } | |
| 1490 CompileLog* log = thread->log(); | |
| 1491 if (log != NULL) { | |
| 1492 log->begin_elem("start_compile_thread thread='" UINTX_FORMAT "' process='%d'", | |
| 1493 os::current_thread_id(), | |
| 1494 os::current_process_id()); | |
| 1495 log->stamp(); | |
| 1496 log->end_elem(); | |
| 1497 } | |
| 1498 | |
| 1499 while (true) { | |
| 1500 { | |
| 1501 // We need this HandleMark to avoid leaking VM handles. | |
| 1502 HandleMark hm(thread); | |
| 1202 | 1503 |
|
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1504 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) { |
| 1202 | 1505 // the code cache is really full |
| 1506 handle_full_code_cache(); | |
| 1507 } else if (UseCodeCacheFlushing && CodeCache::needs_flushing()) { | |
| 1508 // Attempt to start cleaning the code cache while there is still a little headroom | |
| 1509 NMethodSweeper::handle_full_code_cache(false); | |
| 0 | 1510 } |
| 1511 | |
| 1512 CompileTask* task = queue->get(); | |
| 1513 | |
| 1514 // Give compiler threads an extra quanta. They tend to be bursty and | |
| 1515 // this helps the compiler to finish up the job. | |
| 1516 if( CompilerThreadHintNoPreempt ) | |
| 1517 os::hint_no_preempt(); | |
| 1518 | |
| 1519 // trace per thread time and compile statistics | |
| 1520 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); | |
| 1521 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); | |
| 1522 | |
| 1523 // Assign the task to the current thread. Mark this compilation | |
| 1524 // thread as active for the profiler. | |
| 1525 CompileTaskWrapper ctw(task); | |
| 1526 nmethodLocker result_handle; // (handle for the nmethod produced by this task) | |
| 1527 task->set_code_handle(&result_handle); | |
| 1528 methodHandle method(thread, | |
| 1529 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1530 | |
| 1531 // Never compile a method if breakpoints are present in it | |
| 1532 if (method()->number_of_breakpoints() == 0) { | |
| 1533 // Compile the method. | |
| 1202 | 1534 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
| 0 | 1535 #ifdef COMPILER1 |
| 1536 // Allow repeating compilations for the purpose of benchmarking | |
| 1537 // compile speed. This is not useful for customers. | |
| 1538 if (CompilationRepeat != 0) { | |
| 1539 int compile_count = CompilationRepeat; | |
| 1540 while (compile_count > 0) { | |
| 1541 invoke_compiler_on_method(task); | |
| 1542 nmethod* nm = method->code(); | |
| 1543 if (nm != NULL) { | |
| 1544 nm->make_zombie(); | |
| 1545 method->clear_code(); | |
| 1546 } | |
| 1547 compile_count--; | |
| 1548 } | |
| 1549 } | |
| 1550 #endif /* COMPILER1 */ | |
| 1551 invoke_compiler_on_method(task); | |
| 1552 } else { | |
| 1553 // After compilation is disabled, remove remaining methods from queue | |
| 1554 method->clear_queued_for_compilation(); | |
| 1555 } | |
| 1556 } | |
| 1557 } | |
| 1558 } | |
| 1559 } | |
| 1560 | |
| 1561 | |
| 1562 // ------------------------------------------------------------------ | |
| 1563 // CompileBroker::init_compiler_thread_log | |
| 1564 // | |
| 1565 // Set up state required by +LogCompilation. | |
| 1566 void CompileBroker::init_compiler_thread_log() { | |
| 1567 CompilerThread* thread = CompilerThread::current(); | |
| 1568 char fileBuf[4*K]; | |
| 1569 FILE* fp = NULL; | |
| 1570 char* file = NULL; | |
| 1571 intx thread_id = os::current_thread_id(); | |
| 1572 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
| 1573 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
|
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1574 if (dir == NULL) { |
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1575 jio_snprintf(fileBuf, sizeof(fileBuf), "hs_c" UINTX_FORMAT "_pid%u.log", |
|
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1576 thread_id, os::current_process_id()); |
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1577 } else { |
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1578 jio_snprintf(fileBuf, sizeof(fileBuf), |
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1579 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
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1580 os::file_separator(), thread_id, os::current_process_id()); |
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|
1581 } |
| 0 | 1582 fp = fopen(fileBuf, "at"); |
| 1583 if (fp != NULL) { | |
| 1584 file = NEW_C_HEAP_ARRAY(char, strlen(fileBuf)+1); | |
| 1585 strcpy(file, fileBuf); | |
| 1586 break; | |
| 1587 } | |
| 1588 } | |
| 1589 if (fp == NULL) { | |
| 1590 warning("Cannot open log file: %s", fileBuf); | |
| 1591 } else { | |
| 1592 if (LogCompilation && Verbose) | |
| 1593 tty->print_cr("Opening compilation log %s", file); | |
| 1594 CompileLog* log = new(ResourceObj::C_HEAP) CompileLog(file, fp, thread_id); | |
| 1595 thread->init_log(log); | |
| 1596 | |
| 1597 if (xtty != NULL) { | |
| 1598 ttyLocker ttyl; | |
| 1599 | |
| 1600 // Record any per thread log files | |
| 1601 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file); | |
| 1602 } | |
| 1603 } | |
| 1604 } | |
| 1605 | |
| 1606 // ------------------------------------------------------------------ | |
| 1607 // CompileBroker::set_should_block | |
| 1608 // | |
| 1609 // Set _should_block. | |
| 1610 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
| 1611 void CompileBroker::set_should_block() { | |
| 1612 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
| 1613 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
| 1614 #ifndef PRODUCT | |
| 1615 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1616 tty->print_cr("notifying compiler thread pool to block"); | |
| 1617 #endif | |
| 1618 _should_block = true; | |
| 1619 } | |
| 1620 | |
| 1621 // ------------------------------------------------------------------ | |
| 1622 // CompileBroker::maybe_block | |
| 1623 // | |
| 1624 // Call this from the compiler at convenient points, to poll for _should_block. | |
| 1625 void CompileBroker::maybe_block() { | |
| 1626 if (_should_block) { | |
| 1627 #ifndef PRODUCT | |
| 1628 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1629 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
| 1630 #endif | |
| 1631 ThreadInVMfromNative tivfn(JavaThread::current()); | |
| 1632 } | |
| 1633 } | |
| 1634 | |
| 1635 | |
| 1636 // ------------------------------------------------------------------ | |
| 1637 // CompileBroker::invoke_compiler_on_method | |
| 1638 // | |
| 1639 // Compile a method. | |
| 1640 // | |
| 1641 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
| 1642 if (PrintCompilation) { | |
| 1643 ResourceMark rm; | |
| 1644 task->print_line(); | |
| 1645 } | |
| 1646 elapsedTimer time; | |
| 1647 | |
| 1648 CompilerThread* thread = CompilerThread::current(); | |
| 1649 ResourceMark rm(thread); | |
| 1650 | |
| 1651 // Common flags. | |
| 1652 uint compile_id = task->compile_id(); | |
| 1653 int osr_bci = task->osr_bci(); | |
| 1654 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1655 bool should_log = (thread->log() != NULL); | |
| 1656 bool should_break = false; | |
| 1657 { | |
| 1658 // create the handle inside it's own block so it can't | |
| 1659 // accidentally be referenced once the thread transitions to | |
| 1660 // native. The NoHandleMark before the transition should catch | |
| 1661 // any cases where this occurs in the future. | |
| 1662 methodHandle method(thread, | |
| 1663 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1664 should_break = check_break_at(method, compile_id, is_osr); | |
| 1665 if (should_log && !CompilerOracle::should_log(method)) { | |
| 1666 should_log = false; | |
| 1667 } | |
| 1668 assert(!method->is_native(), "no longer compile natives"); | |
| 1669 | |
| 1670 // Save information about this method in case of failure. | |
| 1671 set_last_compile(thread, method, is_osr, task->comp_level()); | |
| 1672 | |
| 1673 DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task->comp_level()), method); | |
| 1674 } | |
| 1675 | |
| 1676 // Allocate a new set of JNI handles. | |
| 1677 push_jni_handle_block(); | |
| 1678 jobject target_handle = JNIHandles::make_local(thread, JNIHandles::resolve(task->method_handle())); | |
| 1679 int compilable = ciEnv::MethodCompilable; | |
| 1680 { | |
| 1681 int system_dictionary_modification_counter; | |
| 1682 { | |
| 1683 MutexLocker locker(Compile_lock, thread); | |
| 1684 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
| 1685 } | |
| 1686 | |
| 1687 NoHandleMark nhm; | |
| 1688 ThreadToNativeFromVM ttn(thread); | |
| 1689 | |
| 1690 ciEnv ci_env(task, system_dictionary_modification_counter); | |
| 1691 if (should_break) { | |
| 1692 ci_env.set_break_at_compile(true); | |
| 1693 } | |
| 1694 if (should_log) { | |
| 1695 ci_env.set_log(thread->log()); | |
| 1696 } | |
| 1697 assert(thread->env() == &ci_env, "set by ci_env"); | |
| 1698 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
| 1699 | |
|
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1700 // Cache Jvmti state |
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1701 ci_env.cache_jvmti_state(); |
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1702 |
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1703 // Cache DTrace flags |
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1704 ci_env.cache_dtrace_flags(); |
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1705 |
| 0 | 1706 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
| 1707 | |
| 1708 TraceTime t1("compilation", &time); | |
| 1709 | |
| 1710 compiler(task->comp_level())->compile_method(&ci_env, target, osr_bci); | |
| 1711 | |
| 1712 if (!ci_env.failing() && task->code() == NULL) { | |
| 1713 //assert(false, "compiler should always document failure"); | |
| 1714 // The compiler elected, without comment, not to register a result. | |
| 1715 // Do not attempt further compilations of this method. | |
|
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1716 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
| 0 | 1717 } |
| 1718 | |
| 1719 if (ci_env.failing()) { | |
| 1720 // Copy this bit to the enclosing block: | |
| 1721 compilable = ci_env.compilable(); | |
| 1722 if (PrintCompilation) { | |
| 1723 const char* reason = ci_env.failure_reason(); | |
| 1724 if (compilable == ciEnv::MethodCompilable_not_at_tier) { | |
| 4047 | 1725 tty->print_cr("%4d COMPILE SKIPPED: %s (retry at different tier)", compile_id, reason); |
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1726 } else if (compilable == ciEnv::MethodCompilable_never) { |
| 4047 | 1727 tty->print_cr("%4d COMPILE SKIPPED: %s (not retryable)", compile_id, reason); |
| 0 | 1728 } else if (compilable == ciEnv::MethodCompilable) { |
| 4047 | 1729 tty->print_cr("%4d COMPILE SKIPPED: %s", compile_id, reason); |
| 0 | 1730 } |
| 1731 } | |
| 1732 } else { | |
| 1733 task->mark_success(); | |
| 1734 task->set_num_inlined_bytecodes(ci_env.num_inlined_bytecodes()); | |
| 1735 } | |
| 1736 } | |
| 1737 pop_jni_handle_block(); | |
| 1738 | |
| 1739 methodHandle method(thread, | |
| 1740 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1741 | |
| 1742 DTRACE_METHOD_COMPILE_END_PROBE(compiler(task->comp_level()), method, task->is_success()); | |
| 1743 | |
| 1744 collect_statistics(thread, time, task); | |
| 1745 | |
|
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1746 if (PrintCompilation && PrintCompilation2) { |
| 4047 | 1747 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); // print timestamp |
| 1748 tty->print("%4d ", compile_id); // print compilation number | |
| 1749 tty->print("%s ", (is_osr ? "%" : " ")); | |
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1750 int code_size = (task->code() == NULL) ? 0 : task->code()->total_size(); |
|
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1751 tty->print_cr("size: %d time: %d inlined: %d bytes", code_size, (int)time.milliseconds(), task->num_inlined_bytecodes()); |
| 4047 | 1752 } |
| 1753 | |
| 0 | 1754 if (compilable == ciEnv::MethodCompilable_never) { |
| 1755 if (is_osr) { | |
| 1756 method->set_not_osr_compilable(); | |
| 1757 } else { | |
|
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1758 method->set_not_compilable_quietly(); |
| 0 | 1759 } |
| 1760 } else if (compilable == ciEnv::MethodCompilable_not_at_tier) { | |
|
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1761 method->set_not_compilable_quietly(task->comp_level()); |
| 0 | 1762 } |
| 1763 | |
| 1764 // Note that the queued_for_compilation bits are cleared without | |
| 1765 // protection of a mutex. [They were set by the requester thread, | |
| 1766 // when adding the task to the complie queue -- at which time the | |
| 1767 // compile queue lock was held. Subsequently, we acquired the compile | |
| 1768 // queue lock to get this task off the compile queue; thus (to belabour | |
| 1769 // the point somewhat) our clearing of the bits must be occurring | |
| 1770 // only after the setting of the bits. See also 14012000 above. | |
| 1771 method->clear_queued_for_compilation(); | |
| 1772 | |
| 1773 #ifdef ASSERT | |
| 1774 if (CollectedHeap::fired_fake_oom()) { | |
| 1775 // The current compile received a fake OOM during compilation so | |
| 1776 // go ahead and exit the VM since the test apparently succeeded | |
| 1777 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
| 1778 vm_exit(0); | |
| 1779 } | |
| 1780 #endif | |
| 1781 } | |
| 1782 | |
| 1783 // ------------------------------------------------------------------ | |
| 1202 | 1784 // CompileBroker::handle_full_code_cache |
| 1785 // | |
| 1786 // The CodeCache is full. Print out warning and disable compilation or | |
| 1787 // try code cache cleaning so compilation can continue later. | |
| 1788 void CompileBroker::handle_full_code_cache() { | |
| 1789 UseInterpreter = true; | |
| 1790 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
|
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1791 if (xtty != NULL) { |
|
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1792 stringStream s; |
|
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1793 // Dump code cache state into a buffer before locking the tty, |
|
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1794 // because log_state() will use locks causing lock conflicts. |
|
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1795 CodeCache::log_state(&s); |
|
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1796 // Lock to prevent tearing |
|
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1797 ttyLocker ttyl; |
|
1728
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1798 xtty->begin_elem("code_cache_full"); |
|
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1799 xtty->print(s.as_string()); |
|
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1800 xtty->stamp(); |
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1801 xtty->end_elem(); |
| 1202 | 1802 } |
|
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1803 warning("CodeCache is full. Compiler has been disabled."); |
|
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1804 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
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1805 CodeCache::print_bounds(tty); |
|
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1806 #ifndef PRODUCT |
| 1202 | 1807 if (CompileTheWorld || ExitOnFullCodeCache) { |
| 1808 before_exit(JavaThread::current()); | |
| 1809 exit_globals(); // will delete tty | |
| 1810 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
| 1811 } | |
|
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1812 #endif |
| 1202 | 1813 if (UseCodeCacheFlushing) { |
| 1814 NMethodSweeper::handle_full_code_cache(true); | |
| 1815 } else { | |
| 1816 UseCompiler = false; | |
| 1817 AlwaysCompileLoopMethods = false; | |
| 1818 } | |
| 1819 } | |
| 1820 } | |
| 1821 | |
| 1822 // ------------------------------------------------------------------ | |
| 0 | 1823 // CompileBroker::set_last_compile |
| 1824 // | |
| 1825 // Record this compilation for debugging purposes. | |
| 1826 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
| 1827 ResourceMark rm; | |
| 1828 char* method_name = method->name()->as_C_string(); | |
| 1829 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
| 1830 char current_method[CompilerCounters::cmname_buffer_length]; | |
| 1831 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
| 1832 | |
| 1833 if (UsePerfData) { | |
| 1834 const char* class_name = method->method_holder()->klass_part()->name()->as_C_string(); | |
| 1835 | |
| 1836 size_t s1len = strlen(class_name); | |
| 1837 size_t s2len = strlen(method_name); | |
| 1838 | |
| 1839 // check if we need to truncate the string | |
| 1840 if (s1len + s2len + 2 > maxLen) { | |
| 1841 | |
| 1842 // the strategy is to lop off the leading characters of the | |
| 1843 // class name and the trailing characters of the method name. | |
| 1844 | |
| 1845 if (s2len + 2 > maxLen) { | |
| 1846 // lop of the entire class name string, let snprintf handle | |
| 1847 // truncation of the method name. | |
| 1848 class_name += s1len; // null string | |
| 1849 } | |
| 1850 else { | |
| 1851 // lop off the extra characters from the front of the class name | |
| 1852 class_name += ((s1len + s2len + 2) - maxLen); | |
| 1853 } | |
| 1854 } | |
| 1855 | |
| 1856 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
| 1857 } | |
| 1858 | |
| 1859 if (CICountOSR && is_osr) { | |
| 1860 _last_compile_type = osr_compile; | |
| 1861 } else { | |
| 1862 _last_compile_type = normal_compile; | |
| 1863 } | |
| 1864 _last_compile_level = comp_level; | |
| 1865 | |
| 1866 if (UsePerfData) { | |
| 1867 CompilerCounters* counters = thread->counters(); | |
| 1868 counters->set_current_method(current_method); | |
| 1869 counters->set_compile_type((jlong)_last_compile_type); | |
| 1870 } | |
| 1871 } | |
| 1872 | |
| 1873 | |
| 1874 // ------------------------------------------------------------------ | |
| 1875 // CompileBroker::push_jni_handle_block | |
| 1876 // | |
| 1877 // Push on a new block of JNI handles. | |
| 1878 void CompileBroker::push_jni_handle_block() { | |
| 1879 JavaThread* thread = JavaThread::current(); | |
| 1880 | |
| 1881 // Allocate a new block for JNI handles. | |
| 1882 // Inlined code from jni_PushLocalFrame() | |
| 1883 JNIHandleBlock* java_handles = thread->active_handles(); | |
| 1884 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
| 1885 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
| 1886 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
| 1887 thread->set_active_handles(compile_handles); | |
| 1888 } | |
| 1889 | |
| 1890 | |
| 1891 // ------------------------------------------------------------------ | |
| 1892 // CompileBroker::pop_jni_handle_block | |
| 1893 // | |
| 1894 // Pop off the current block of JNI handles. | |
| 1895 void CompileBroker::pop_jni_handle_block() { | |
| 1896 JavaThread* thread = JavaThread::current(); | |
| 1897 | |
| 1898 // Release our JNI handle block | |
| 1899 JNIHandleBlock* compile_handles = thread->active_handles(); | |
| 1900 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
| 1901 thread->set_active_handles(java_handles); | |
| 1902 compile_handles->set_pop_frame_link(NULL); | |
| 1903 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
| 1904 } | |
| 1905 | |
| 1906 | |
| 1907 // ------------------------------------------------------------------ | |
| 1908 // CompileBroker::check_break_at | |
| 1909 // | |
| 1910 // Should the compilation break at the current compilation. | |
| 1911 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
| 1912 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
| 1913 return true; | |
| 1914 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
| 1915 return true; | |
| 1916 } else { | |
| 1917 return (compile_id == CIBreakAt); | |
| 1918 } | |
| 1919 } | |
| 1920 | |
| 1921 // ------------------------------------------------------------------ | |
| 1922 // CompileBroker::collect_statistics | |
| 1923 // | |
| 1924 // Collect statistics about the compilation. | |
| 1925 | |
| 1926 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
| 1927 bool success = task->is_success(); | |
| 1928 methodHandle method (thread, (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1929 uint compile_id = task->compile_id(); | |
| 1930 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
| 1931 nmethod* code = task->code(); | |
| 1932 CompilerCounters* counters = thread->counters(); | |
| 1933 | |
| 1934 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
| 1935 MutexLocker locker(CompileStatistics_lock); | |
| 1936 | |
| 1937 // _perf variables are production performance counters which are | |
| 1938 // updated regardless of the setting of the CITime and CITimeEach flags | |
| 1939 // | |
| 1940 if (!success) { | |
| 1941 _total_bailout_count++; | |
| 1942 if (UsePerfData) { | |
| 1943 _perf_last_failed_method->set_value(counters->current_method()); | |
| 1944 _perf_last_failed_type->set_value(counters->compile_type()); | |
| 1945 _perf_total_bailout_count->inc(); | |
| 1946 } | |
| 1947 } else if (code == NULL) { | |
| 1948 if (UsePerfData) { | |
| 1949 _perf_last_invalidated_method->set_value(counters->current_method()); | |
| 1950 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
| 1951 _perf_total_invalidated_count->inc(); | |
| 1952 } | |
| 1953 _total_invalidated_count++; | |
| 1954 } else { | |
| 1955 // Compilation succeeded | |
| 1956 | |
| 1957 // update compilation ticks - used by the implementation of | |
| 1958 // java.lang.management.CompilationMBean | |
| 1959 _perf_total_compilation->inc(time.ticks()); | |
| 1960 | |
| 1961 if (CITime) { | |
| 1962 _t_total_compilation.add(time); | |
| 1963 if (is_osr) { | |
| 1964 _t_osr_compilation.add(time); | |
| 1965 _sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 1966 } else { | |
| 1967 _t_standard_compilation.add(time); | |
| 1968 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 1969 } | |
| 1970 } | |
| 1971 | |
| 1972 if (UsePerfData) { | |
| 1973 // save the name of the last method compiled | |
| 1974 _perf_last_method->set_value(counters->current_method()); | |
| 1975 _perf_last_compile_type->set_value(counters->compile_type()); | |
| 1976 _perf_last_compile_size->set_value(method->code_size() + | |
| 1977 task->num_inlined_bytecodes()); | |
| 1978 if (is_osr) { | |
| 1979 _perf_osr_compilation->inc(time.ticks()); | |
| 1980 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 1981 } else { | |
| 1982 _perf_standard_compilation->inc(time.ticks()); | |
| 1983 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 1984 } | |
| 1985 } | |
| 1986 | |
| 1987 if (CITimeEach) { | |
| 1988 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
| 1989 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
| 1990 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
| 1991 } | |
| 1992 | |
| 1993 // Collect counts of successful compilations | |
| 1748 | 1994 _sum_nmethod_size += code->total_size(); |
| 1995 _sum_nmethod_code_size += code->insts_size(); | |
| 0 | 1996 _total_compile_count++; |
| 1997 | |
| 1998 if (UsePerfData) { | |
| 1748 | 1999 _perf_sum_nmethod_size->inc( code->total_size()); |
| 2000 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
| 0 | 2001 _perf_total_compile_count->inc(); |
| 2002 } | |
| 2003 | |
| 2004 if (is_osr) { | |
| 2005 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
| 2006 _total_osr_compile_count++; | |
| 2007 } else { | |
| 2008 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
| 2009 _total_standard_compile_count++; | |
| 2010 } | |
| 2011 } | |
| 2012 // set the current method for the thread to null | |
| 2013 if (UsePerfData) counters->set_current_method(""); | |
| 2014 } | |
| 2015 | |
| 2016 | |
| 2017 | |
| 2018 void CompileBroker::print_times() { | |
| 2019 tty->cr(); | |
| 2020 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
| 2021 tty->print_cr("------------------------------------------------"); | |
| 2022 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
| 2023 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
| 2024 tty->print_cr(" Total compilation time : %6.3f s", CompileBroker::_t_total_compilation.seconds()); | |
| 2025 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", | |
| 2026 CompileBroker::_t_standard_compilation.seconds(), | |
| 2027 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count); | |
| 2028 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 | 2029 |
| 1783 | 2030 if (compiler(CompLevel_simple) != NULL) { |
| 2031 compiler(CompLevel_simple)->print_timers(); | |
| 0 | 2032 } |
| 1783 | 2033 if (compiler(CompLevel_full_optimization) != NULL) { |
| 2034 compiler(CompLevel_full_optimization)->print_timers(); | |
| 2035 } | |
| 0 | 2036 tty->cr(); |
| 2037 int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled; | |
| 2038 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); | |
| 2039 tty->print_cr(" Standard compilation : %6d bytes", CompileBroker::_sum_standard_bytes_compiled); | |
| 2040 tty->print_cr(" On stack replacement : %6d bytes", CompileBroker::_sum_osr_bytes_compiled); | |
| 2041 int bps = (int)(tcb / CompileBroker::_t_total_compilation.seconds()); | |
| 2042 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); | |
| 2043 tty->cr(); | |
| 2044 tty->print_cr(" nmethod code size : %6d bytes", CompileBroker::_sum_nmethod_code_size); | |
| 2045 tty->print_cr(" nmethod total size : %6d bytes", CompileBroker::_sum_nmethod_size); | |
| 2046 } | |
| 2047 | |
| 2048 | |
| 2049 // Debugging output for failure | |
| 2050 void CompileBroker::print_last_compile() { | |
| 2051 if ( _last_compile_level != CompLevel_none && | |
| 2052 compiler(_last_compile_level) != NULL && | |
| 2053 _last_method_compiled != NULL && | |
| 2054 _last_compile_type != no_compile) { | |
| 2055 if (_last_compile_type == osr_compile) { | |
| 2056 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
| 2057 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
| 2058 } else { | |
| 2059 tty->print_cr("Last parse: %d+++(%d) %s", | |
| 2060 _compilation_id, _last_compile_level, _last_method_compiled); | |
| 2061 } | |
| 2062 } | |
| 2063 } | |
| 2064 | |
| 2065 | |
| 2066 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
| 2067 #ifndef PRODUCT | |
| 2068 st->print_cr("Compiler thread printing unimplemented."); | |
| 2069 st->cr(); | |
| 2070 #endif | |
| 2071 } |