Mercurial > hg > graal-compiler
annotate src/share/vm/compiler/compileBroker.cpp @ 4977:532be189cf09
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| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Mon, 27 Feb 2012 17:06:18 +0100 |
| parents | 33df1aeaebbf |
| children | 1b8d02e10ee8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "classfile/vmSymbols.hpp" | |
| 28 #include "code/codeCache.hpp" | |
| 29 #include "compiler/compileBroker.hpp" | |
| 30 #include "compiler/compileLog.hpp" | |
| 31 #include "compiler/compilerOracle.hpp" | |
| 32 #include "interpreter/linkResolver.hpp" | |
| 33 #include "memory/allocation.inline.hpp" | |
| 34 #include "oops/methodDataOop.hpp" | |
| 35 #include "oops/methodOop.hpp" | |
| 36 #include "oops/oop.inline.hpp" | |
| 37 #include "prims/nativeLookup.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
| 39 #include "runtime/compilationPolicy.hpp" | |
| 40 #include "runtime/init.hpp" | |
| 41 #include "runtime/interfaceSupport.hpp" | |
| 42 #include "runtime/javaCalls.hpp" | |
| 43 #include "runtime/os.hpp" | |
| 44 #include "runtime/sharedRuntime.hpp" | |
| 45 #include "runtime/sweeper.hpp" | |
| 46 #include "utilities/dtrace.hpp" | |
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47 #ifdef GRAAL |
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48 #include "graal/graalCompiler.hpp" |
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49 #endif |
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50 #include "utilities/events.hpp" |
| 1972 | 51 #ifdef COMPILER1 |
| 52 #include "c1/c1_Compiler.hpp" | |
| 53 #endif | |
| 54 #ifdef COMPILER2 | |
| 55 #include "opto/c2compiler.hpp" | |
| 56 #endif | |
| 57 #ifdef SHARK | |
| 58 #include "shark/sharkCompiler.hpp" | |
| 59 #endif | |
| 0 | 60 |
| 61 #ifdef DTRACE_ENABLED | |
| 62 | |
| 63 // Only bother with this argument setup if dtrace is available | |
| 64 | |
| 4006 | 65 #ifndef USDT2 |
| 0 | 66 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, |
| 67 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
| 68 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
| 69 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
| 70 | |
| 71 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 72 { \ | |
| 73 char* comp_name = (char*)(compiler)->name(); \ | |
|
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74 Symbol* klass_name = (method)->klass_name(); \ |
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75 Symbol* name = (method)->name(); \ |
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76 Symbol* signature = (method)->signature(); \ |
| 0 | 77 HS_DTRACE_PROBE8(hotspot, method__compile__begin, \ |
| 78 comp_name, strlen(comp_name), \ | |
| 79 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 80 name->bytes(), name->utf8_length(), \ | |
| 81 signature->bytes(), signature->utf8_length()); \ | |
| 82 } | |
| 83 | |
| 84 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 85 { \ | |
| 86 char* comp_name = (char*)(compiler)->name(); \ | |
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87 Symbol* klass_name = (method)->klass_name(); \ |
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88 Symbol* name = (method)->name(); \ |
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89 Symbol* signature = (method)->signature(); \ |
| 0 | 90 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ |
| 91 comp_name, strlen(comp_name), \ | |
| 92 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 93 name->bytes(), name->utf8_length(), \ | |
| 94 signature->bytes(), signature->utf8_length(), (success)); \ | |
| 95 } | |
| 96 | |
| 4006 | 97 #else /* USDT2 */ |
| 98 | |
| 99 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 100 { \ | |
| 101 char* comp_name = (char*)(compiler)->name(); \ | |
| 102 Symbol* klass_name = (method)->klass_name(); \ | |
| 103 Symbol* name = (method)->name(); \ | |
| 104 Symbol* signature = (method)->signature(); \ | |
| 105 HOTSPOT_METHOD_COMPILE_BEGIN( \ | |
| 106 comp_name, strlen(comp_name), \ | |
| 107 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 108 (char *) name->bytes(), name->utf8_length(), \ | |
| 109 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 110 } | |
| 111 | |
| 112 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 113 { \ | |
| 114 char* comp_name = (char*)(compiler)->name(); \ | |
| 115 Symbol* klass_name = (method)->klass_name(); \ | |
| 116 Symbol* name = (method)->name(); \ | |
| 117 Symbol* signature = (method)->signature(); \ | |
| 118 HOTSPOT_METHOD_COMPILE_END( \ | |
| 119 comp_name, strlen(comp_name), \ | |
| 120 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 121 (char *) name->bytes(), name->utf8_length(), \ | |
| 122 (char *) signature->bytes(), signature->utf8_length(), (success)); \ | |
| 123 } | |
| 124 #endif /* USDT2 */ | |
| 125 | |
| 0 | 126 #else // ndef DTRACE_ENABLED |
| 127 | |
| 128 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) | |
| 129 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) | |
| 130 | |
| 131 #endif // ndef DTRACE_ENABLED | |
| 132 | |
| 133 bool CompileBroker::_initialized = false; | |
| 134 volatile bool CompileBroker::_should_block = false; | |
| 1202 | 135 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
| 0 | 136 |
| 137 // The installed compiler(s) | |
| 138 AbstractCompiler* CompileBroker::_compilers[2]; | |
| 139 | |
| 140 // These counters are used for assigning id's to each compilation | |
| 141 uint CompileBroker::_compilation_id = 0; | |
| 142 uint CompileBroker::_osr_compilation_id = 0; | |
| 143 | |
| 144 // Debugging information | |
| 145 int CompileBroker::_last_compile_type = no_compile; | |
| 146 int CompileBroker::_last_compile_level = CompLevel_none; | |
| 147 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
| 148 | |
| 149 // Performance counters | |
| 150 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
| 151 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
| 152 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
| 153 | |
| 154 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
| 155 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
| 156 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
| 157 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
| 158 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
| 159 | |
| 160 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
| 161 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
| 162 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
| 163 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
| 164 | |
| 165 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
| 166 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
| 167 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
| 168 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
| 169 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
| 170 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
| 171 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
| 172 | |
| 173 // Timers and counters for generating statistics | |
| 174 elapsedTimer CompileBroker::_t_total_compilation; | |
| 175 elapsedTimer CompileBroker::_t_osr_compilation; | |
| 176 elapsedTimer CompileBroker::_t_standard_compilation; | |
| 177 | |
| 178 int CompileBroker::_total_bailout_count = 0; | |
| 179 int CompileBroker::_total_invalidated_count = 0; | |
| 180 int CompileBroker::_total_compile_count = 0; | |
| 181 int CompileBroker::_total_osr_compile_count = 0; | |
| 182 int CompileBroker::_total_standard_compile_count = 0; | |
| 183 | |
| 184 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
| 185 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
| 186 int CompileBroker::_sum_nmethod_size = 0; | |
| 187 int CompileBroker::_sum_nmethod_code_size = 0; | |
| 188 | |
| 1783 | 189 CompileQueue* CompileBroker::_c2_method_queue = NULL; |
| 190 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
| 0 | 191 CompileTask* CompileBroker::_task_free_list = NULL; |
| 192 | |
| 193 GrowableArray<CompilerThread*>* CompileBroker::_method_threads = NULL; | |
| 194 | |
| 195 | |
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196 class CompilationLog : public StringEventLog { |
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197 public: |
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198 CompilationLog() : StringEventLog("Compilation events") { |
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199 } |
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200 |
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201 void log_compile(JavaThread* thread, CompileTask* task) { |
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202 StringLogMessage lm; |
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203 stringStream msg = lm.stream(); |
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204 // msg.time_stamp().update_to(tty->time_stamp().ticks()); |
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205 task->print_compilation(&msg, true); |
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206 log(thread, "%s", (const char*)lm); |
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207 } |
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208 |
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209 void log_nmethod(JavaThread* thread, nmethod* nm) { |
| 4944 | 210 log(thread, "nmethod %d%s " INTPTR_FORMAT " code ["INTPTR_FORMAT ", " INTPTR_FORMAT "]", |
| 211 nm->compile_id(), nm->is_osr_method() ? "%" : "", | |
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212 nm, nm->code_begin(), nm->code_end()); |
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213 } |
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214 |
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215 void log_failure(JavaThread* thread, CompileTask* task, const char* reason, const char* retry_message) { |
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216 StringLogMessage lm; |
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217 lm.print("%4d COMPILE SKIPPED: %s", task->compile_id(), reason); |
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218 if (retry_message != NULL) { |
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219 lm.append(" (%s)", retry_message); |
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220 } |
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221 lm.print("\n"); |
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222 log(thread, "%s", (const char*)lm); |
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223 } |
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224 }; |
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225 |
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226 static CompilationLog* _compilation_log = NULL; |
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227 |
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228 void compileBroker_init() { |
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229 if (LogEvents) { |
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230 _compilation_log = new CompilationLog(); |
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231 } |
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232 } |
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233 |
| 0 | 234 CompileTaskWrapper::CompileTaskWrapper(CompileTask* task) { |
| 235 CompilerThread* thread = CompilerThread::current(); | |
| 236 thread->set_task(task); | |
| 237 CompileLog* log = thread->log(); | |
| 238 if (log != NULL) task->log_task_start(log); | |
| 239 } | |
| 240 | |
| 241 CompileTaskWrapper::~CompileTaskWrapper() { | |
| 242 CompilerThread* thread = CompilerThread::current(); | |
| 243 CompileTask* task = thread->task(); | |
| 244 CompileLog* log = thread->log(); | |
| 245 if (log != NULL) task->log_task_done(log); | |
| 246 thread->set_task(NULL); | |
| 247 task->set_code_handle(NULL); | |
| 248 DEBUG_ONLY(thread->set_env((ciEnv*)badAddress)); | |
| 249 if (task->is_blocking()) { | |
| 250 MutexLocker notifier(task->lock(), thread); | |
| 251 task->mark_complete(); | |
| 252 // Notify the waiting thread that the compilation has completed. | |
| 253 task->lock()->notify_all(); | |
| 254 } else { | |
| 255 task->mark_complete(); | |
| 256 | |
| 257 // By convention, the compiling thread is responsible for | |
| 258 // recycling a non-blocking CompileTask. | |
| 259 CompileBroker::free_task(task); | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 | |
| 264 // ------------------------------------------------------------------ | |
| 265 // CompileTask::initialize | |
| 266 void CompileTask::initialize(int compile_id, | |
| 267 methodHandle method, | |
| 268 int osr_bci, | |
| 269 int comp_level, | |
| 270 methodHandle hot_method, | |
| 271 int hot_count, | |
| 272 const char* comment, | |
| 273 bool is_blocking) { | |
| 274 assert(!_lock->is_locked(), "bad locking"); | |
| 275 | |
| 276 _compile_id = compile_id; | |
| 277 _method = JNIHandles::make_global(method); | |
| 278 _osr_bci = osr_bci; | |
| 279 _is_blocking = is_blocking; | |
| 280 _comp_level = comp_level; | |
| 281 _num_inlined_bytecodes = 0; | |
| 282 | |
| 283 _is_complete = false; | |
| 284 _is_success = false; | |
| 285 _code_handle = NULL; | |
| 286 | |
| 287 _hot_method = NULL; | |
| 288 _hot_count = hot_count; | |
| 289 _time_queued = 0; // tidy | |
| 290 _comment = comment; | |
| 291 | |
| 292 if (LogCompilation) { | |
| 293 _time_queued = os::elapsed_counter(); | |
| 294 if (hot_method.not_null()) { | |
| 295 if (hot_method == method) { | |
| 296 _hot_method = _method; | |
| 297 } else { | |
| 298 _hot_method = JNIHandles::make_global(hot_method); | |
| 299 } | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 _next = NULL; | |
| 304 } | |
| 305 | |
| 306 // ------------------------------------------------------------------ | |
| 307 // CompileTask::code/set_code | |
| 308 nmethod* CompileTask::code() const { | |
| 309 if (_code_handle == NULL) return NULL; | |
| 310 return _code_handle->code(); | |
| 311 } | |
| 312 void CompileTask::set_code(nmethod* nm) { | |
| 313 if (_code_handle == NULL && nm == NULL) return; | |
| 314 guarantee(_code_handle != NULL, ""); | |
| 315 _code_handle->set_code(nm); | |
| 316 if (nm == NULL) _code_handle = NULL; // drop the handle also | |
| 317 } | |
| 318 | |
| 319 // ------------------------------------------------------------------ | |
| 320 // CompileTask::free | |
| 321 void CompileTask::free() { | |
| 322 set_code(NULL); | |
| 323 assert(!_lock->is_locked(), "Should not be locked when freed"); | |
| 324 if (_hot_method != NULL && _hot_method != _method) { | |
| 325 JNIHandles::destroy_global(_hot_method); | |
| 326 } | |
| 327 JNIHandles::destroy_global(_method); | |
| 328 } | |
| 329 | |
| 330 | |
| 331 // ------------------------------------------------------------------ | |
| 332 // CompileTask::print | |
| 333 void CompileTask::print() { | |
| 334 tty->print("<CompileTask compile_id=%d ", _compile_id); | |
| 335 tty->print("method="); | |
| 336 ((methodOop)JNIHandles::resolve(_method))->print_name(tty); | |
| 337 tty->print_cr(" osr_bci=%d is_blocking=%s is_complete=%s is_success=%s>", | |
| 338 _osr_bci, bool_to_str(_is_blocking), | |
| 339 bool_to_str(_is_complete), bool_to_str(_is_success)); | |
| 340 } | |
| 341 | |
| 1783 | 342 |
| 0 | 343 // ------------------------------------------------------------------ |
| 344 // CompileTask::print_line_on_error | |
| 345 // | |
| 346 // This function is called by fatal error handler when the thread | |
| 347 // causing troubles is a compiler thread. | |
| 348 // | |
| 349 // Do not grab any lock, do not allocate memory. | |
| 350 // | |
| 351 // Otherwise it's the same as CompileTask::print_line() | |
| 352 // | |
| 353 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) { | |
| 354 // print compiler name | |
| 355 st->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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356 print_compilation(st); |
| 0 | 357 } |
| 358 | |
| 359 // ------------------------------------------------------------------ | |
| 360 // CompileTask::print_line | |
| 361 void CompileTask::print_line() { | |
| 362 ttyLocker ttyl; // keep the following output all in one block | |
| 363 // print compiler name if requested | |
| 364 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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365 print_compilation(); |
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366 } |
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367 |
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368 |
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369 // ------------------------------------------------------------------ |
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370 // CompileTask::print_compilation_impl |
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371 void CompileTask::print_compilation_impl(outputStream* st, methodOop method, int compile_id, int comp_level, |
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372 bool is_osr_method, int osr_bci, bool is_blocking, |
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373 const char* msg, bool short_form) { |
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374 if (!short_form) { |
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375 st->print("%7d ", (int) st->time_stamp().milliseconds()); // print timestamp |
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376 } |
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377 st->print("%4d ", compile_id); // print compilation number |
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378 |
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379 // For unloaded methods the transition to zombie occurs after the |
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380 // method is cleared so it's impossible to report accurate |
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381 // information for that case. |
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382 bool is_synchronized = false; |
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383 bool has_exception_handler = false; |
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384 bool is_native = false; |
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385 if (method != NULL) { |
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386 is_synchronized = method->is_synchronized(); |
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387 has_exception_handler = method->has_exception_handler(); |
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388 is_native = method->is_native(); |
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389 } |
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390 // method attributes |
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391 const char compile_type = is_osr_method ? '%' : ' '; |
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392 const char sync_char = is_synchronized ? 's' : ' '; |
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393 const char exception_char = has_exception_handler ? '!' : ' '; |
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394 const char blocking_char = is_blocking ? 'b' : ' '; |
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395 const char native_char = is_native ? 'n' : ' '; |
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396 |
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397 // print method attributes |
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398 st->print("%c%c%c%c%c ", compile_type, sync_char, exception_char, blocking_char, native_char); |
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399 |
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400 if (TieredCompilation) { |
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401 if (comp_level != -1) st->print("%d ", comp_level); |
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402 else st->print("- "); |
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403 } |
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404 st->print(" "); // more indent |
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405 |
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406 if (method == NULL) { |
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407 st->print("(method)"); |
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408 } else { |
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409 method->print_short_name(st); |
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410 if (is_osr_method) { |
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411 st->print(" @ %d", osr_bci); |
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412 } |
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413 st->print(" (%d bytes)", method->code_size()); |
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414 } |
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415 |
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416 if (msg != NULL) { |
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417 st->print(" %s", msg); |
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418 } |
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419 if (!short_form) { |
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420 st->cr(); |
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421 } |
| 0 | 422 } |
| 423 | |
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424 // ------------------------------------------------------------------ |
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425 // CompileTask::print_inlining |
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426 void CompileTask::print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg) { |
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427 // 1234567 |
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428 st->print(" "); // print timestamp |
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429 // 1234 |
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430 st->print(" "); // print compilation number |
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431 |
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432 // method attributes |
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433 const char sync_char = method->is_synchronized() ? 's' : ' '; |
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434 const char exception_char = method->has_exception_handlers() ? '!' : ' '; |
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435 const char monitors_char = method->has_monitor_bytecodes() ? 'm' : ' '; |
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436 |
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437 // print method attributes |
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438 st->print(" %c%c%c ", sync_char, exception_char, monitors_char); |
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439 |
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440 if (TieredCompilation) { |
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441 st->print(" "); |
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442 } |
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443 st->print(" "); // more indent |
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444 st->print(" "); // initial inlining indent |
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445 |
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446 for (int i = 0; i < inline_level; i++) st->print(" "); |
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447 |
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448 st->print("@ %d ", bci); // print bci |
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449 method->print_short_name(st); |
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450 st->print(" (%d bytes)", method->code_size()); |
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451 |
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452 if (msg != NULL) { |
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453 st->print(" %s", msg); |
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454 } |
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455 st->cr(); |
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456 } |
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457 |
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458 // ------------------------------------------------------------------ |
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459 // CompileTask::print_inline_indent |
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460 void CompileTask::print_inline_indent(int inline_level, outputStream* st) { |
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461 // 1234567 |
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462 st->print(" "); // print timestamp |
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463 // 1234 |
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464 st->print(" "); // print compilation number |
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465 // %s!bn |
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466 st->print(" "); // print method attributes |
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467 if (TieredCompilation) { |
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468 st->print(" "); |
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469 } |
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470 st->print(" "); // more indent |
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471 st->print(" "); // initial inlining indent |
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472 for (int i = 0; i < inline_level; i++) st->print(" "); |
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473 } |
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474 |
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475 // ------------------------------------------------------------------ |
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476 // CompileTask::print_compilation |
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477 void CompileTask::print_compilation(outputStream* st, bool short_form) { |
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478 oop rem = JNIHandles::resolve(method_handle()); |
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479 assert(rem != NULL && rem->is_method(), "must be"); |
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480 methodOop method = (methodOop) rem; |
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481 bool is_osr_method = osr_bci() != InvocationEntryBci; |
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482 print_compilation_impl(st, method, compile_id(), comp_level(), is_osr_method, osr_bci(), is_blocking(), NULL, short_form); |
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483 } |
| 0 | 484 |
| 485 // ------------------------------------------------------------------ | |
| 486 // CompileTask::log_task | |
| 487 void CompileTask::log_task(xmlStream* log) { | |
| 488 Thread* thread = Thread::current(); | |
| 489 methodHandle method(thread, | |
| 490 (methodOop)JNIHandles::resolve(method_handle())); | |
| 491 ResourceMark rm(thread); | |
| 492 | |
| 493 // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'> | |
| 494 if (_compile_id != 0) log->print(" compile_id='%d'", _compile_id); | |
| 495 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 496 log->print(" compile_kind='osr'"); // same as nmethod::compile_kind | |
| 497 } // else compile_kind='c2c' | |
| 498 if (!method.is_null()) log->method(method); | |
| 499 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 500 log->print(" osr_bci='%d'", _osr_bci); | |
| 501 } | |
| 502 if (_comp_level != CompLevel_highest_tier) { | |
| 503 log->print(" level='%d'", _comp_level); | |
| 504 } | |
| 505 if (_is_blocking) { | |
| 506 log->print(" blocking='1'"); | |
| 507 } | |
| 508 log->stamp(); | |
| 509 } | |
| 510 | |
| 511 | |
| 512 // ------------------------------------------------------------------ | |
| 513 // CompileTask::log_task_queued | |
| 514 void CompileTask::log_task_queued() { | |
| 515 Thread* thread = Thread::current(); | |
| 516 ttyLocker ttyl; | |
| 517 ResourceMark rm(thread); | |
| 518 | |
| 519 xtty->begin_elem("task_queued"); | |
| 520 log_task(xtty); | |
| 521 if (_comment != NULL) { | |
| 522 xtty->print(" comment='%s'", _comment); | |
| 523 } | |
| 524 if (_hot_method != NULL) { | |
| 525 methodHandle hot(thread, | |
| 526 (methodOop)JNIHandles::resolve(_hot_method)); | |
| 527 methodHandle method(thread, | |
| 528 (methodOop)JNIHandles::resolve(_method)); | |
| 529 if (hot() != method()) { | |
| 530 xtty->method(hot); | |
| 531 } | |
| 532 } | |
| 533 if (_hot_count != 0) { | |
| 534 xtty->print(" hot_count='%d'", _hot_count); | |
| 535 } | |
| 536 xtty->end_elem(); | |
| 537 } | |
| 538 | |
| 539 | |
| 540 // ------------------------------------------------------------------ | |
| 541 // CompileTask::log_task_start | |
| 542 void CompileTask::log_task_start(CompileLog* log) { | |
| 543 log->begin_head("task"); | |
| 544 log_task(log); | |
| 545 log->end_head(); | |
| 546 } | |
| 547 | |
| 548 | |
| 549 // ------------------------------------------------------------------ | |
| 550 // CompileTask::log_task_done | |
| 551 void CompileTask::log_task_done(CompileLog* log) { | |
| 552 Thread* thread = Thread::current(); | |
| 553 methodHandle method(thread, | |
| 554 (methodOop)JNIHandles::resolve(method_handle())); | |
| 555 ResourceMark rm(thread); | |
| 556 | |
| 557 // <task_done ... stamp='1.234'> </task> | |
| 558 nmethod* nm = code(); | |
| 559 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
| 1748 | 560 _is_success, nm == NULL ? 0 : nm->content_size(), |
| 0 | 561 method->invocation_count()); |
| 562 int bec = method->backedge_count(); | |
| 563 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
| 564 // Note: "_is_complete" is about to be set, but is not. | |
| 565 if (_num_inlined_bytecodes != 0) { | |
| 566 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
| 567 } | |
| 568 log->stamp(); | |
| 569 log->end_elem(); | |
| 570 log->tail("task"); | |
| 571 log->clear_identities(); // next task will have different CI | |
| 572 if (log->unflushed_count() > 2000) { | |
| 573 log->flush(); | |
| 574 } | |
| 575 log->mark_file_end(); | |
| 576 } | |
| 577 | |
| 578 | |
| 579 | |
| 580 // ------------------------------------------------------------------ | |
| 581 // CompileQueue::add | |
| 582 // | |
| 583 // Add a CompileTask to a CompileQueue | |
| 584 void CompileQueue::add(CompileTask* task) { | |
| 585 assert(lock()->owned_by_self(), "must own lock"); | |
| 586 | |
| 587 task->set_next(NULL); | |
| 1783 | 588 task->set_prev(NULL); |
| 0 | 589 |
| 590 if (_last == NULL) { | |
| 591 // The compile queue is empty. | |
| 592 assert(_first == NULL, "queue is empty"); | |
| 593 _first = task; | |
| 594 _last = task; | |
| 595 } else { | |
| 596 // Append the task to the queue. | |
| 597 assert(_last->next() == NULL, "not last"); | |
| 598 _last->set_next(task); | |
| 1783 | 599 task->set_prev(_last); |
| 0 | 600 _last = task; |
| 601 } | |
| 1783 | 602 ++_size; |
| 0 | 603 |
| 604 // Mark the method as being in the compile queue. | |
| 605 ((methodOop)JNIHandles::resolve(task->method_handle()))->set_queued_for_compilation(); | |
| 606 | |
| 607 if (CIPrintCompileQueue) { | |
| 608 print(); | |
| 609 } | |
| 610 | |
| 611 if (LogCompilation && xtty != NULL) { | |
| 612 task->log_task_queued(); | |
| 613 } | |
| 614 | |
| 615 // Notify CompilerThreads that a task is available. | |
| 1783 | 616 lock()->notify_all(); |
| 0 | 617 } |
| 618 | |
| 619 // ------------------------------------------------------------------ | |
| 620 // CompileQueue::get | |
| 621 // | |
| 622 // Get the next CompileTask from a CompileQueue | |
| 623 CompileTask* CompileQueue::get() { | |
|
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624 NMethodSweeper::possibly_sweep(); |
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625 |
| 0 | 626 MutexLocker locker(lock()); |
| 627 // Wait for an available CompileTask. | |
| 628 while (_first == NULL) { | |
| 629 // There is no work to be done right now. Wait. | |
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630 if (UseCodeCacheFlushing && (!CompileBroker::should_compile_new_jobs() || CodeCache::needs_flushing())) { |
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631 // During the emergency sweeping periods, wake up and sweep occasionally |
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632 bool timedout = lock()->wait(!Mutex::_no_safepoint_check_flag, NmethodSweepCheckInterval*1000); |
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633 if (timedout) { |
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634 MutexUnlocker ul(lock()); |
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635 // When otherwise not busy, run nmethod sweeping |
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636 NMethodSweeper::possibly_sweep(); |
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637 } |
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638 } else { |
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639 // During normal operation no need to wake up on timer |
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640 lock()->wait(); |
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641 } |
| 0 | 642 } |
| 1783 | 643 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
| 644 remove(task); | |
| 645 return task; | |
| 646 } | |
| 0 | 647 |
| 1783 | 648 void CompileQueue::remove(CompileTask* task) |
| 649 { | |
| 650 assert(lock()->owned_by_self(), "must own lock"); | |
| 651 if (task->prev() != NULL) { | |
| 652 task->prev()->set_next(task->next()); | |
| 653 } else { | |
| 654 // max is the first element | |
| 655 assert(task == _first, "Sanity"); | |
| 656 _first = task->next(); | |
| 0 | 657 } |
| 658 | |
| 1783 | 659 if (task->next() != NULL) { |
| 660 task->next()->set_prev(task->prev()); | |
| 661 } else { | |
| 662 // max is the last element | |
| 663 assert(task == _last, "Sanity"); | |
| 664 _last = task->prev(); | |
| 665 } | |
| 666 --_size; | |
| 0 | 667 } |
| 668 | |
| 669 // ------------------------------------------------------------------ | |
| 670 // CompileQueue::print | |
| 671 void CompileQueue::print() { | |
| 672 tty->print_cr("Contents of %s", name()); | |
| 673 tty->print_cr("----------------------"); | |
| 674 CompileTask* task = _first; | |
| 675 while (task != NULL) { | |
| 676 task->print_line(); | |
| 677 task = task->next(); | |
| 678 } | |
| 679 tty->print_cr("----------------------"); | |
| 680 } | |
| 681 | |
| 682 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
| 683 | |
| 684 _current_method[0] = '\0'; | |
| 685 _compile_type = CompileBroker::no_compile; | |
| 686 | |
| 687 if (UsePerfData) { | |
| 688 ResourceMark rm; | |
| 689 | |
| 690 // create the thread instance name space string - don't create an | |
| 691 // instance subspace if instance is -1 - keeps the adapterThread | |
| 692 // counters from having a ".0" namespace. | |
| 693 const char* thread_i = (instance == -1) ? thread_name : | |
| 694 PerfDataManager::name_space(thread_name, instance); | |
| 695 | |
| 696 | |
| 697 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
| 698 _perf_current_method = | |
| 699 PerfDataManager::create_string_variable(SUN_CI, name, | |
| 700 cmname_buffer_length, | |
| 701 _current_method, CHECK); | |
| 702 | |
| 703 name = PerfDataManager::counter_name(thread_i, "type"); | |
| 704 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
| 705 PerfData::U_None, | |
| 706 (jlong)_compile_type, | |
| 707 CHECK); | |
| 708 | |
| 709 name = PerfDataManager::counter_name(thread_i, "time"); | |
| 710 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
| 711 PerfData::U_Ticks, CHECK); | |
| 712 | |
| 713 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
| 714 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
| 715 PerfData::U_Events, CHECK); | |
| 716 } | |
| 717 } | |
| 718 | |
| 719 // ------------------------------------------------------------------ | |
| 720 // CompileBroker::compilation_init | |
| 721 // | |
| 722 // Initialize the Compilation object | |
| 723 void CompileBroker::compilation_init() { | |
| 724 _last_method_compiled[0] = '\0'; | |
| 725 | |
| 1970 | 726 #ifndef SHARK |
| 0 | 727 // Set the interface to the current compiler(s). |
| 1783 | 728 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
| 729 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
|
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730 #if defined(GRAAL) |
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731 _compilers[0] = new GraalCompiler(); |
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732 #elif defined(COMPILER1) |
| 1783 | 733 if (c1_count > 0) { |
| 734 _compilers[0] = new Compiler(); | |
| 735 } | |
| 0 | 736 #endif // COMPILER1 |
| 737 | |
| 738 #ifdef COMPILER2 | |
| 1783 | 739 if (c2_count > 0) { |
| 740 _compilers[1] = new C2Compiler(); | |
| 741 } | |
| 0 | 742 #endif // COMPILER2 |
| 743 | |
| 1970 | 744 #else // SHARK |
| 745 int c1_count = 0; | |
| 746 int c2_count = 1; | |
| 747 | |
| 748 _compilers[1] = new SharkCompiler(); | |
| 749 #endif // SHARK | |
| 1692 | 750 |
| 0 | 751 // Initialize the CompileTask free list |
| 752 _task_free_list = NULL; | |
| 753 | |
| 754 // Start the CompilerThreads | |
| 1783 | 755 init_compiler_threads(c1_count, c2_count); |
| 0 | 756 // totalTime performance counter is always created as it is required |
| 757 // by the implementation of java.lang.management.CompilationMBean. | |
| 758 { | |
| 759 EXCEPTION_MARK; | |
| 760 _perf_total_compilation = | |
| 761 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
| 762 PerfData::U_Ticks, CHECK); | |
| 763 } | |
| 764 | |
| 765 | |
| 766 if (UsePerfData) { | |
| 767 | |
| 768 EXCEPTION_MARK; | |
| 769 | |
| 770 // create the jvmstat performance counters | |
| 771 _perf_osr_compilation = | |
| 772 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
| 773 PerfData::U_Ticks, CHECK); | |
| 774 | |
| 775 _perf_standard_compilation = | |
| 776 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
| 777 PerfData::U_Ticks, CHECK); | |
| 778 | |
| 779 _perf_total_bailout_count = | |
| 780 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
| 781 PerfData::U_Events, CHECK); | |
| 782 | |
| 783 _perf_total_invalidated_count = | |
| 784 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
| 785 PerfData::U_Events, CHECK); | |
| 786 | |
| 787 _perf_total_compile_count = | |
| 788 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
| 789 PerfData::U_Events, CHECK); | |
| 790 _perf_total_osr_compile_count = | |
| 791 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
| 792 PerfData::U_Events, CHECK); | |
| 793 | |
| 794 _perf_total_standard_compile_count = | |
| 795 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
| 796 PerfData::U_Events, CHECK); | |
| 797 | |
| 798 _perf_sum_osr_bytes_compiled = | |
| 799 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
| 800 PerfData::U_Bytes, CHECK); | |
| 801 | |
| 802 _perf_sum_standard_bytes_compiled = | |
| 803 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
| 804 PerfData::U_Bytes, CHECK); | |
| 805 | |
| 806 _perf_sum_nmethod_size = | |
| 807 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
| 808 PerfData::U_Bytes, CHECK); | |
| 809 | |
| 810 _perf_sum_nmethod_code_size = | |
| 811 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
| 812 PerfData::U_Bytes, CHECK); | |
| 813 | |
| 814 _perf_last_method = | |
| 815 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
| 816 CompilerCounters::cmname_buffer_length, | |
| 817 "", CHECK); | |
| 818 | |
| 819 _perf_last_failed_method = | |
| 820 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
| 821 CompilerCounters::cmname_buffer_length, | |
| 822 "", CHECK); | |
| 823 | |
| 824 _perf_last_invalidated_method = | |
| 825 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
| 826 CompilerCounters::cmname_buffer_length, | |
| 827 "", CHECK); | |
| 828 | |
| 829 _perf_last_compile_type = | |
| 830 PerfDataManager::create_variable(SUN_CI, "lastType", | |
| 831 PerfData::U_None, | |
| 832 (jlong)CompileBroker::no_compile, | |
| 833 CHECK); | |
| 834 | |
| 835 _perf_last_compile_size = | |
| 836 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
| 837 PerfData::U_Bytes, | |
| 838 (jlong)CompileBroker::no_compile, | |
| 839 CHECK); | |
| 840 | |
| 841 | |
| 842 _perf_last_failed_type = | |
| 843 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
| 844 PerfData::U_None, | |
| 845 (jlong)CompileBroker::no_compile, | |
| 846 CHECK); | |
| 847 | |
| 848 _perf_last_invalidated_type = | |
| 849 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
| 850 PerfData::U_None, | |
| 851 (jlong)CompileBroker::no_compile, | |
| 852 CHECK); | |
| 853 } | |
| 854 | |
| 855 _initialized = true; | |
| 856 } | |
| 857 | |
| 858 | |
| 859 | |
| 860 // ------------------------------------------------------------------ | |
| 861 // CompileBroker::make_compiler_thread | |
| 862 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS) { | |
| 863 CompilerThread* compiler_thread = NULL; | |
| 864 | |
| 865 klassOop k = | |
|
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866 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_Thread(), |
| 0 | 867 true, CHECK_0); |
| 868 instanceKlassHandle klass (THREAD, k); | |
| 869 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
| 870 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
| 871 | |
| 872 // Initialize thread_oop to put it into the system threadGroup | |
| 873 Handle thread_group (THREAD, Universe::system_thread_group()); | |
| 874 JavaValue result(T_VOID); | |
| 875 JavaCalls::call_special(&result, thread_oop, | |
| 876 klass, | |
|
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877 vmSymbols::object_initializer_name(), |
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878 vmSymbols::threadgroup_string_void_signature(), |
| 0 | 879 thread_group, |
| 880 string, | |
| 881 CHECK_0); | |
| 882 | |
| 883 { | |
| 884 MutexLocker mu(Threads_lock, THREAD); | |
| 885 compiler_thread = new CompilerThread(queue, counters); | |
| 886 // At this point the new CompilerThread data-races with this startup | |
| 887 // thread (which I believe is the primoridal thread and NOT the VM | |
| 888 // thread). This means Java bytecodes being executed at startup can | |
| 889 // queue compile jobs which will run at whatever default priority the | |
| 890 // newly created CompilerThread runs at. | |
| 891 | |
| 892 | |
| 893 // At this point it may be possible that no osthread was created for the | |
| 894 // JavaThread due to lack of memory. We would have to throw an exception | |
| 895 // in that case. However, since this must work and we do not allow | |
| 896 // exceptions anyway, check and abort if this fails. | |
| 897 | |
| 898 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
| 899 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
| 900 "unable to create new native thread"); | |
| 901 } | |
| 902 | |
| 903 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
| 904 | |
| 905 // Note that this only sets the JavaThread _priority field, which by | |
| 906 // definition is limited to Java priorities and not OS priorities. | |
| 907 // The os-priority is set in the CompilerThread startup code itself | |
|
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908 |
| 0 | 909 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); |
|
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910 |
|
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911 // Note that we cannot call os::set_priority because it expects Java |
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912 // priorities and we are *explicitly* using OS priorities so that it's |
|
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913 // possible to set the compiler thread priority higher than any Java |
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914 // thread. |
| 0 | 915 |
|
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916 int native_prio = CompilerThreadPriority; |
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917 if (native_prio == -1) { |
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918 if (UseCriticalCompilerThreadPriority) { |
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919 native_prio = os::java_to_os_priority[CriticalPriority]; |
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920 } else { |
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921 native_prio = os::java_to_os_priority[NearMaxPriority]; |
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922 } |
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923 } |
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924 os::set_native_priority(compiler_thread, native_prio); |
| 0 | 925 |
| 926 java_lang_Thread::set_daemon(thread_oop()); | |
| 927 | |
| 928 compiler_thread->set_threadObj(thread_oop()); | |
| 929 Threads::add(compiler_thread); | |
| 930 Thread::start(compiler_thread); | |
| 931 } | |
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932 |
| 0 | 933 // Let go of Threads_lock before yielding |
| 934 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
| 935 | |
| 936 return compiler_thread; | |
| 937 } | |
| 938 | |
| 939 | |
| 940 // ------------------------------------------------------------------ | |
| 941 // CompileBroker::init_compiler_threads | |
| 942 // | |
| 943 // Initialize the compilation queue | |
| 1783 | 944 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
| 0 | 945 EXCEPTION_MARK; |
| 2447 | 946 #if !defined(ZERO) && !defined(SHARK) |
| 1783 | 947 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
| 2447 | 948 #endif // !ZERO && !SHARK |
| 1783 | 949 if (c2_compiler_count > 0) { |
| 950 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
| 951 } | |
| 952 if (c1_compiler_count > 0) { | |
| 953 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
| 954 } | |
| 0 | 955 |
| 1783 | 956 int compiler_count = c1_compiler_count + c2_compiler_count; |
| 957 | |
| 0 | 958 _method_threads = |
| 959 new (ResourceObj::C_HEAP) GrowableArray<CompilerThread*>(compiler_count, true); | |
| 960 | |
| 961 char name_buffer[256]; | |
| 1783 | 962 for (int i = 0; i < c2_compiler_count; i++) { |
| 0 | 963 // Create a name for our thread. |
| 1783 | 964 sprintf(name_buffer, "C2 CompilerThread%d", i); |
| 0 | 965 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
| 1783 | 966 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, CHECK); |
| 0 | 967 _method_threads->append(new_thread); |
| 968 } | |
| 1783 | 969 |
| 970 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
| 971 // Create a name for our thread. | |
| 972 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
| 973 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
| 974 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, CHECK); | |
| 975 _method_threads->append(new_thread); | |
| 976 } | |
| 977 | |
| 0 | 978 if (UsePerfData) { |
| 979 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, | |
| 980 compiler_count, CHECK); | |
| 981 } | |
| 982 } | |
| 983 | |
| 984 // ------------------------------------------------------------------ | |
| 985 // CompileBroker::is_idle | |
| 986 bool CompileBroker::is_idle() { | |
|
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987 #ifndef GRAAL |
| 1783 | 988 if (_c2_method_queue != NULL && !_c2_method_queue->is_empty()) { |
| 989 return false; | |
| 990 } else if (_c1_method_queue != NULL && !_c1_method_queue->is_empty()) { | |
| 0 | 991 return false; |
| 992 } else { | |
| 993 int num_threads = _method_threads->length(); | |
| 994 for (int i=0; i<num_threads; i++) { | |
| 995 if (_method_threads->at(i)->task() != NULL) { | |
| 996 return false; | |
| 997 } | |
| 998 } | |
| 999 } | |
|
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1000 #endif |
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1001 // No pending or active compilations. |
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1002 return true; |
| 0 | 1003 } |
| 1004 | |
| 1005 | |
| 1006 // ------------------------------------------------------------------ | |
| 1007 // CompileBroker::compile_method | |
| 1008 // | |
| 1009 // Request compilation of a method. | |
| 1010 void CompileBroker::compile_method_base(methodHandle method, | |
| 1011 int osr_bci, | |
| 1012 int comp_level, | |
| 1013 methodHandle hot_method, | |
| 1014 int hot_count, | |
| 1015 const char* comment, | |
|
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1016 Thread* thread) { |
| 0 | 1017 // do nothing if compiler thread(s) is not available |
| 1018 if (!_initialized ) { | |
| 1019 return; | |
| 1020 } | |
| 1021 | |
| 1022 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
| 1023 assert(method->method_holder()->klass_part()->oop_is_instance(), | |
| 1024 "sanity check"); | |
| 1025 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), | |
| 1026 "method holder must be initialized"); | |
| 1027 | |
| 1028 if (CIPrintRequests) { | |
| 1029 tty->print("request: "); | |
| 1030 method->print_short_name(tty); | |
| 1031 if (osr_bci != InvocationEntryBci) { | |
| 1032 tty->print(" osr_bci: %d", osr_bci); | |
| 1033 } | |
| 1034 tty->print(" comment: %s count: %d", comment, hot_count); | |
| 1035 if (!hot_method.is_null()) { | |
| 1036 tty->print(" hot: "); | |
| 1037 if (hot_method() != method()) { | |
| 1038 hot_method->print_short_name(tty); | |
| 1039 } else { | |
| 1040 tty->print("yes"); | |
| 1041 } | |
| 1042 } | |
| 1043 tty->cr(); | |
| 1044 } | |
| 1045 | |
| 1046 // A request has been made for compilation. Before we do any | |
| 1047 // real work, check to see if the method has been compiled | |
| 1048 // in the meantime with a definitive result. | |
| 1049 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1050 return; | |
| 1051 } | |
| 1052 | |
| 2403 | 1053 #ifndef PRODUCT |
| 1054 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) { | |
| 1055 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) { | |
| 1056 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI. | |
| 1057 return; | |
| 1058 } | |
| 1059 } | |
| 1060 #endif | |
| 1783 | 1061 |
| 0 | 1062 // If this method is already in the compile queue, then |
| 1063 // we do not block the current thread. | |
| 1064 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1065 // We may want to decay our counter a bit here to prevent | |
| 1066 // multiple denied requests for compilation. This is an | |
| 1067 // open compilation policy issue. Note: The other possibility, | |
| 1068 // in the case that this is a blocking compile request, is to have | |
| 1069 // all subsequent blocking requesters wait for completion of | |
| 1070 // ongoing compiles. Note that in this case we'll need a protocol | |
| 1071 // for freeing the associated compile tasks. [Or we could have | |
| 1072 // a single static monitor on which all these waiters sleep.] | |
| 1073 return; | |
| 1074 } | |
| 1075 | |
|
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1076 // If the requesting thread is holding the pending list lock |
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1077 // then we just return. We can't risk blocking while holding |
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1078 // the pending list lock or a 3-way deadlock may occur |
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1079 // between the reference handler thread, a GC (instigated |
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1080 // by a compiler thread), and compiled method registration. |
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1081 if (instanceRefKlass::owns_pending_list_lock(JavaThread::current())) { |
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1082 return; |
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1083 } |
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1084 |
| 0 | 1085 // Outputs from the following MutexLocker block: |
| 1086 CompileTask* task = NULL; | |
| 1087 bool blocking = false; | |
| 1783 | 1088 CompileQueue* queue = compile_queue(comp_level); |
| 0 | 1089 |
| 1090 // Acquire our lock. | |
| 1091 { | |
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1092 MutexLocker locker(queue->lock(), thread); |
| 0 | 1093 |
|
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1094 #ifdef GRAAL |
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1095 if (JavaThread::current()->is_compiling() && !BackgroundCompilation) { |
|
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1096 TRACE_graal_1("Recursive compile %s!", method->name_and_sig_as_C_string()); |
|
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1097 method->set_not_compilable(); |
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1098 return; |
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1099 } |
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1100 #endif |
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1101 |
| 0 | 1102 // Make sure the method has not slipped into the queues since |
| 1103 // last we checked; note that those checks were "fast bail-outs". | |
| 1104 // Here we need to be more careful, see 14012000 below. | |
| 1105 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1106 return; | |
| 1107 } | |
| 1108 | |
| 1109 // We need to check again to see if the compilation has | |
| 1110 // completed. A previous compilation may have registered | |
| 1111 // some result. | |
| 1112 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1113 return; | |
| 1114 } | |
| 1115 | |
| 1116 // We now know that this compilation is not pending, complete, | |
| 1117 // or prohibited. Assign a compile_id to this compilation | |
| 1118 // and check to see if it is in our [Start..Stop) range. | |
| 1119 uint compile_id = assign_compile_id(method, osr_bci); | |
| 1120 if (compile_id == 0) { | |
| 1121 // The compilation falls outside the allowed range. | |
| 1122 return; | |
| 1123 } | |
| 1124 | |
| 1125 // Should this thread wait for completion of the compile? | |
| 1126 blocking = is_compile_blocking(method, osr_bci); | |
| 1127 | |
| 1128 // We will enter the compilation in the queue. | |
| 1129 // 14012000: Note that this sets the queued_for_compile bits in | |
| 1130 // the target method. We can now reason that a method cannot be | |
| 1131 // queued for compilation more than once, as follows: | |
| 1132 // Before a thread queues a task for compilation, it first acquires | |
| 1133 // the compile queue lock, then checks if the method's queued bits | |
| 1134 // are set or it has already been compiled. Thus there can not be two | |
| 1135 // instances of a compilation task for the same method on the | |
| 1136 // compilation queue. Consider now the case where the compilation | |
| 1137 // thread has already removed a task for that method from the queue | |
| 1138 // and is in the midst of compiling it. In this case, the | |
| 1139 // queued_for_compile bits must be set in the method (and these | |
| 1140 // will be visible to the current thread, since the bits were set | |
| 1141 // under protection of the compile queue lock, which we hold now. | |
| 1142 // When the compilation completes, the compiler thread first sets | |
| 1143 // the compilation result and then clears the queued_for_compile | |
| 1144 // bits. Neither of these actions are protected by a barrier (or done | |
| 1145 // under the protection of a lock), so the only guarantee we have | |
| 1146 // (on machines with TSO (Total Store Order)) is that these values | |
| 1147 // will update in that order. As a result, the only combinations of | |
| 1148 // these bits that the current thread will see are, in temporal order: | |
| 1149 // <RESULT, QUEUE> : | |
| 1150 // <0, 1> : in compile queue, but not yet compiled | |
| 1151 // <1, 1> : compiled but queue bit not cleared | |
| 1152 // <1, 0> : compiled and queue bit cleared | |
| 1153 // Because we first check the queue bits then check the result bits, | |
| 1154 // we are assured that we cannot introduce a duplicate task. | |
| 1155 // Note that if we did the tests in the reverse order (i.e. check | |
| 1156 // result then check queued bit), we could get the result bit before | |
| 1157 // the compilation completed, and the queue bit after the compilation | |
| 1158 // completed, and end up introducing a "duplicate" (redundant) task. | |
| 1159 // In that case, the compiler thread should first check if a method | |
| 1160 // has already been compiled before trying to compile it. | |
| 1161 // NOTE: in the event that there are multiple compiler threads and | |
| 1162 // there is de-optimization/recompilation, things will get hairy, | |
| 1163 // and in that case it's best to protect both the testing (here) of | |
| 1164 // these bits, and their updating (here and elsewhere) under a | |
| 1165 // common lock. | |
|
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1166 #ifndef GRAAL |
| 1783 | 1167 task = create_compile_task(queue, |
| 0 | 1168 compile_id, method, |
| 1169 osr_bci, comp_level, | |
| 1170 hot_method, hot_count, comment, | |
| 1171 blocking); | |
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1172 #endif |
| 0 | 1173 } |
| 1174 | |
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1175 #ifdef GRAAL |
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1176 if (!JavaThread::current()->is_compiling()) { |
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1177 method->set_queued_for_compilation(); |
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1178 GraalCompiler::instance()->compile_method(method, osr_bci, blocking); |
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1179 } else { |
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1180 // Recursive compile request => ignore. |
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1181 } |
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1182 #else |
| 0 | 1183 if (blocking) { |
| 1184 wait_for_completion(task); | |
| 1185 } | |
|
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1186 #endif |
| 0 | 1187 } |
| 1188 | |
| 1189 | |
| 1190 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
| 1783 | 1191 int comp_level, |
| 0 | 1192 methodHandle hot_method, int hot_count, |
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1193 const char* comment, Thread* THREAD) { |
| 0 | 1194 // make sure arguments make sense |
| 1195 assert(method->method_holder()->klass_part()->oop_is_instance(), "not an instance method"); | |
| 1196 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); | |
| 1197 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
| 1198 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), "method holder must be initialized"); | |
| 1199 | |
| 1783 | 1200 if (!TieredCompilation) { |
| 1201 comp_level = CompLevel_highest_tier; | |
| 0 | 1202 } |
| 1203 | |
| 1204 // return quickly if possible | |
| 1205 | |
| 1206 // lock, make sure that the compilation | |
| 1207 // isn't prohibited in a straightforward way. | |
| 1208 | |
| 1209 if (compiler(comp_level) == NULL || compilation_is_prohibited(method, osr_bci, comp_level)) { | |
| 1210 return NULL; | |
| 1211 } | |
| 1212 | |
| 1213 if (osr_bci == InvocationEntryBci) { | |
| 1214 // standard compilation | |
| 1215 nmethod* method_code = method->code(); | |
| 1783 | 1216 if (method_code != NULL) { |
| 1217 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1218 return method_code; | |
| 1219 } | |
| 0 | 1220 } |
| 1221 if (method->is_not_compilable(comp_level)) return NULL; | |
| 1202 | 1222 |
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1223 if (UseCodeCacheFlushing) { |
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1224 nmethod* saved = CodeCache::find_and_remove_saved_code(method()); |
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1225 if (saved != NULL) { |
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1226 method->set_code(method, saved); |
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1227 return saved; |
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1228 } |
| 1202 | 1229 } |
| 1230 | |
| 0 | 1231 } else { |
| 1232 // osr compilation | |
| 1233 #ifndef TIERED | |
| 1234 // seems like an assert of dubious value | |
| 1783 | 1235 assert(comp_level == CompLevel_highest_tier, |
| 0 | 1236 "all OSR compiles are assumed to be at a single compilation lavel"); |
| 1237 #endif // TIERED | |
| 1783 | 1238 // We accept a higher level osr method |
| 1239 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1240 if (nm != NULL) return nm; |
| 1241 if (method->is_not_osr_compilable()) return NULL; | |
| 1242 } | |
| 1243 | |
| 1244 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
| 1245 // some prerequisites that are compiler specific | |
| 2447 | 1246 if (compiler(comp_level)->is_c2() || compiler(comp_level)->is_shark()) { |
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1247 method->constants()->resolve_string_constants(CHECK_AND_CLEAR_NULL); |
| 0 | 1248 // Resolve all classes seen in the signature of the method |
| 1249 // we are compiling. | |
|
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1250 methodOopDesc::load_signature_classes(method, CHECK_AND_CLEAR_NULL); |
| 0 | 1251 } |
| 1252 | |
| 1253 // If the method is native, do the lookup in the thread requesting | |
| 1254 // the compilation. Native lookups can load code, which is not | |
| 1255 // permitted during compilation. | |
| 1256 // | |
| 1257 // Note: A native method implies non-osr compilation which is | |
| 1258 // checked with an assertion at the entry of this method. | |
| 1259 if (method->is_native()) { | |
| 1260 bool in_base_library; | |
| 1261 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
| 1262 if (HAS_PENDING_EXCEPTION) { | |
| 1263 // In case of an exception looking up the method, we just forget | |
| 1264 // about it. The interpreter will kick-in and throw the exception. | |
| 1265 method->set_not_compilable(); // implies is_not_osr_compilable() | |
| 1266 CLEAR_PENDING_EXCEPTION; | |
| 1267 return NULL; | |
| 1268 } | |
| 1269 assert(method->has_native_function(), "must have native code by now"); | |
| 1270 } | |
| 1271 | |
| 1272 // RedefineClasses() has replaced this method; just return | |
| 1273 if (method->is_old()) { | |
| 1274 return NULL; | |
| 1275 } | |
| 1276 | |
| 1277 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
| 1278 // a lock the compiling thread can not acquire. Prefetch it here. | |
| 1279 if (JvmtiExport::should_post_compiled_method_load()) { | |
| 1280 method->jmethod_id(); | |
| 1281 } | |
| 1282 | |
| 1202 | 1283 // If the compiler is shut off due to code cache flushing or otherwise, |
| 1284 // fail out now so blocking compiles dont hang the java thread | |
| 1285 if (!should_compile_new_jobs() || (UseCodeCacheFlushing && CodeCache::needs_flushing())) { | |
| 1783 | 1286 CompilationPolicy::policy()->delay_compilation(method()); |
| 1202 | 1287 return NULL; |
| 1288 } | |
| 1289 | |
| 0 | 1290 // do the compilation |
| 1291 if (method->is_native()) { | |
| 1292 if (!PreferInterpreterNativeStubs) { | |
|
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1293 // Acquire our lock. |
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1294 int compile_id; |
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1295 { |
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1296 MutexLocker locker(MethodCompileQueue_lock, THREAD); |
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1297 compile_id = assign_compile_id(method, standard_entry_bci); |
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1298 } |
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1299 (void) AdapterHandlerLibrary::create_native_wrapper(method, compile_id); |
| 0 | 1300 } else { |
| 1301 return NULL; | |
| 1302 } | |
| 1303 } else { | |
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1304 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, THREAD); |
| 0 | 1305 } |
| 1306 | |
| 1307 // return requested nmethod | |
| 1783 | 1308 // We accept a higher level osr method |
| 1309 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1310 } |
| 1311 | |
| 1312 | |
| 1313 // ------------------------------------------------------------------ | |
| 1314 // CompileBroker::compilation_is_complete | |
| 1315 // | |
| 1316 // See if compilation of this method is already complete. | |
| 1317 bool CompileBroker::compilation_is_complete(methodHandle method, | |
| 1318 int osr_bci, | |
| 1319 int comp_level) { | |
| 1320 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1321 if (is_osr) { | |
| 1322 if (method->is_not_osr_compilable()) { | |
| 1323 return true; | |
| 1324 } else { | |
| 1783 | 1325 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
| 0 | 1326 return (result != NULL); |
| 1327 } | |
| 1328 } else { | |
| 1329 if (method->is_not_compilable(comp_level)) { | |
| 1330 return true; | |
| 1331 } else { | |
| 1332 nmethod* result = method->code(); | |
| 1333 if (result == NULL) return false; | |
| 1783 | 1334 return comp_level == result->comp_level(); |
| 0 | 1335 } |
| 1336 } | |
| 1337 } | |
| 1338 | |
| 1339 | |
| 1340 // ------------------------------------------------------------------ | |
| 1341 // CompileBroker::compilation_is_in_queue | |
| 1342 // | |
| 1343 // See if this compilation is already requested. | |
| 1344 // | |
| 1345 // Implementation note: there is only a single "is in queue" bit | |
| 1346 // for each method. This means that the check below is overly | |
| 1347 // conservative in the sense that an osr compilation in the queue | |
| 1348 // will block a normal compilation from entering the queue (and vice | |
| 1349 // versa). This can be remedied by a full queue search to disambiguate | |
| 1350 // cases. If it is deemed profitible, this may be done. | |
| 1351 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
| 1783 | 1352 int osr_bci) { |
| 0 | 1353 return method->queued_for_compilation(); |
| 1354 } | |
| 1355 | |
| 1356 // ------------------------------------------------------------------ | |
| 1357 // CompileBroker::compilation_is_prohibited | |
| 1358 // | |
| 1359 // See if this compilation is not allowed. | |
| 1360 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
| 1361 bool is_native = method->is_native(); | |
| 1362 // Some compilers may not support the compilation of natives. | |
| 1363 if (is_native && | |
| 1364 (!CICompileNatives || !compiler(comp_level)->supports_native())) { | |
| 1783 | 1365 method->set_not_compilable_quietly(comp_level); |
| 0 | 1366 return true; |
| 1367 } | |
| 1368 | |
| 1369 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1370 // Some compilers may not support on stack replacement. | |
| 1371 if (is_osr && | |
| 1372 (!CICompileOSR || !compiler(comp_level)->supports_osr())) { | |
| 1373 method->set_not_osr_compilable(); | |
| 1374 return true; | |
| 1375 } | |
| 1376 | |
| 1377 // The method may be explicitly excluded by the user. | |
| 1378 bool quietly; | |
| 1379 if (CompilerOracle::should_exclude(method, quietly)) { | |
| 1380 if (!quietly) { | |
| 1381 // This does not happen quietly... | |
| 1382 ResourceMark rm; | |
| 1383 tty->print("### Excluding %s:%s", | |
| 1384 method->is_native() ? "generation of native wrapper" : "compile", | |
| 1385 (method->is_static() ? " static" : "")); | |
| 1386 method->print_short_name(tty); | |
| 1387 tty->cr(); | |
| 1388 } | |
|
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1389 method->set_not_compilable_quietly(); |
| 0 | 1390 } |
| 1391 | |
| 1392 return false; | |
| 1393 } | |
| 1394 | |
| 1395 | |
| 1396 // ------------------------------------------------------------------ | |
| 1397 // CompileBroker::assign_compile_id | |
| 1398 // | |
| 1399 // Assign a serialized id number to this compilation request. If the | |
| 1400 // number falls out of the allowed range, return a 0. OSR | |
| 1401 // compilations may be numbered separately from regular compilations | |
| 1402 // if certain debugging flags are used. | |
| 1403 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
| 1783 | 1404 assert(MethodCompileQueue_lock->owner() == Thread::current(), |
| 0 | 1405 "must hold the compilation queue lock"); |
| 1406 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1407 uint id; | |
| 1408 if (CICountOSR && is_osr) { | |
| 1409 id = ++_osr_compilation_id; | |
| 1410 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
| 1411 return id; | |
| 1412 } | |
| 1413 } else { | |
| 1414 id = ++_compilation_id; | |
| 1415 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
| 1416 return id; | |
| 1417 } | |
| 1418 } | |
| 1419 | |
| 1420 // Method was not in the appropriate compilation range. | |
|
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1421 method->set_not_compilable_quietly(); |
| 0 | 1422 return 0; |
| 1423 } | |
| 1424 | |
| 1425 | |
| 1426 // ------------------------------------------------------------------ | |
| 1427 // CompileBroker::is_compile_blocking | |
| 1428 // | |
| 1429 // Should the current thread be blocked until this compilation request | |
| 1430 // has been fulfilled? | |
| 1431 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
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1432 assert(!instanceRefKlass::owns_pending_list_lock(JavaThread::current()), "possible deadlock"); |
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1433 return !BackgroundCompilation; |
| 0 | 1434 } |
| 1435 | |
| 1436 | |
| 1437 // ------------------------------------------------------------------ | |
| 1438 // CompileBroker::preload_classes | |
| 1439 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
| 1440 // Move this code over from c1_Compiler.cpp | |
| 1441 ShouldNotReachHere(); | |
| 1442 } | |
| 1443 | |
| 1444 | |
| 1445 // ------------------------------------------------------------------ | |
| 1446 // CompileBroker::create_compile_task | |
| 1447 // | |
| 1448 // Create a CompileTask object representing the current request for | |
| 1449 // compilation. Add this task to the queue. | |
| 1450 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
| 1451 int compile_id, | |
| 1452 methodHandle method, | |
| 1453 int osr_bci, | |
| 1454 int comp_level, | |
| 1455 methodHandle hot_method, | |
| 1456 int hot_count, | |
| 1457 const char* comment, | |
| 1458 bool blocking) { | |
| 1459 CompileTask* new_task = allocate_task(); | |
| 1460 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
| 1461 hot_method, hot_count, comment, | |
| 1462 blocking); | |
| 1463 queue->add(new_task); | |
| 1464 return new_task; | |
| 1465 } | |
| 1466 | |
| 1467 | |
| 1468 // ------------------------------------------------------------------ | |
| 1469 // CompileBroker::allocate_task | |
| 1470 // | |
| 1471 // Allocate a CompileTask, from the free list if possible. | |
| 1472 CompileTask* CompileBroker::allocate_task() { | |
| 1473 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1474 CompileTask* task = NULL; | |
| 1475 if (_task_free_list != NULL) { | |
| 1476 task = _task_free_list; | |
| 1477 _task_free_list = task->next(); | |
| 1478 task->set_next(NULL); | |
| 1479 } else { | |
| 1480 task = new CompileTask(); | |
| 1481 task->set_next(NULL); | |
| 1482 } | |
| 1483 return task; | |
| 1484 } | |
| 1485 | |
| 1486 | |
| 1487 // ------------------------------------------------------------------ | |
| 1488 // CompileBroker::free_task | |
| 1489 // | |
| 1490 // Add a task to the free list. | |
| 1491 void CompileBroker::free_task(CompileTask* task) { | |
| 1492 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1493 task->free(); | |
| 1494 task->set_next(_task_free_list); | |
| 1495 _task_free_list = task; | |
| 1496 } | |
| 1497 | |
| 1498 | |
| 1499 // ------------------------------------------------------------------ | |
| 1500 // CompileBroker::wait_for_completion | |
| 1501 // | |
| 1502 // Wait for the given method CompileTask to complete. | |
| 1503 void CompileBroker::wait_for_completion(CompileTask* task) { | |
| 1504 if (CIPrintCompileQueue) { | |
| 1505 tty->print_cr("BLOCKING FOR COMPILE"); | |
| 1506 } | |
| 1507 | |
| 1508 assert(task->is_blocking(), "can only wait on blocking task"); | |
| 1509 | |
| 1510 JavaThread *thread = JavaThread::current(); | |
| 1511 thread->set_blocked_on_compilation(true); | |
| 1512 | |
| 1513 methodHandle method(thread, | |
| 1514 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1515 { | |
| 1516 MutexLocker waiter(task->lock(), thread); | |
| 1517 | |
| 1518 while (!task->is_complete()) | |
| 1519 task->lock()->wait(); | |
| 1520 } | |
| 1521 // It is harmless to check this status without the lock, because | |
| 1522 // completion is a stable property (until the task object is recycled). | |
| 1523 assert(task->is_complete(), "Compilation should have completed"); | |
| 1524 assert(task->code_handle() == NULL, "must be reset"); | |
| 1525 | |
| 1526 thread->set_blocked_on_compilation(false); | |
| 1527 | |
| 1528 // By convention, the waiter is responsible for recycling a | |
| 1529 // blocking CompileTask. Since there is only one waiter ever | |
| 1530 // waiting on a CompileTask, we know that no one else will | |
| 1531 // be using this CompileTask; we can free it. | |
| 1532 free_task(task); | |
| 1533 } | |
| 1534 | |
| 1535 // ------------------------------------------------------------------ | |
| 1536 // CompileBroker::compiler_thread_loop | |
| 1537 // | |
| 1538 // The main loop run by a CompilerThread. | |
| 1539 void CompileBroker::compiler_thread_loop() { | |
| 1540 CompilerThread* thread = CompilerThread::current(); | |
| 1541 CompileQueue* queue = thread->queue(); | |
| 1542 | |
| 1543 // For the thread that initializes the ciObjectFactory | |
| 1544 // this resource mark holds all the shared objects | |
| 1545 ResourceMark rm; | |
| 1546 | |
| 1547 // First thread to get here will initialize the compiler interface | |
| 1548 | |
| 1549 if (!ciObjectFactory::is_initialized()) { | |
| 1550 ASSERT_IN_VM; | |
| 1551 MutexLocker only_one (CompileThread_lock, thread); | |
| 1552 if (!ciObjectFactory::is_initialized()) { | |
| 1553 ciObjectFactory::initialize(); | |
| 1554 } | |
| 1555 } | |
| 1556 | |
| 1557 // Open a log. | |
| 1558 if (LogCompilation) { | |
| 1559 init_compiler_thread_log(); | |
| 1560 } | |
| 1561 CompileLog* log = thread->log(); | |
| 1562 if (log != NULL) { | |
| 1563 log->begin_elem("start_compile_thread thread='" UINTX_FORMAT "' process='%d'", | |
| 1564 os::current_thread_id(), | |
| 1565 os::current_process_id()); | |
| 1566 log->stamp(); | |
| 1567 log->end_elem(); | |
| 1568 } | |
| 1569 | |
| 1570 while (true) { | |
| 1571 { | |
| 1572 // We need this HandleMark to avoid leaking VM handles. | |
| 1573 HandleMark hm(thread); | |
| 1202 | 1574 |
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1575 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) { |
| 1202 | 1576 // the code cache is really full |
| 1577 handle_full_code_cache(); | |
| 1578 } else if (UseCodeCacheFlushing && CodeCache::needs_flushing()) { | |
| 1579 // Attempt to start cleaning the code cache while there is still a little headroom | |
| 1580 NMethodSweeper::handle_full_code_cache(false); | |
| 0 | 1581 } |
| 1582 | |
| 1583 CompileTask* task = queue->get(); | |
| 1584 | |
| 1585 // Give compiler threads an extra quanta. They tend to be bursty and | |
| 1586 // this helps the compiler to finish up the job. | |
| 1587 if( CompilerThreadHintNoPreempt ) | |
| 1588 os::hint_no_preempt(); | |
| 1589 | |
| 1590 // trace per thread time and compile statistics | |
| 1591 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); | |
| 1592 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); | |
| 1593 | |
| 1594 // Assign the task to the current thread. Mark this compilation | |
| 1595 // thread as active for the profiler. | |
| 1596 CompileTaskWrapper ctw(task); | |
| 1597 nmethodLocker result_handle; // (handle for the nmethod produced by this task) | |
| 1598 task->set_code_handle(&result_handle); | |
| 1599 methodHandle method(thread, | |
| 1600 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1601 | |
| 1602 // Never compile a method if breakpoints are present in it | |
| 1603 if (method()->number_of_breakpoints() == 0) { | |
| 1604 // Compile the method. | |
| 1202 | 1605 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
| 0 | 1606 #ifdef COMPILER1 |
| 1607 // Allow repeating compilations for the purpose of benchmarking | |
| 1608 // compile speed. This is not useful for customers. | |
| 1609 if (CompilationRepeat != 0) { | |
| 1610 int compile_count = CompilationRepeat; | |
| 1611 while (compile_count > 0) { | |
| 1612 invoke_compiler_on_method(task); | |
| 1613 nmethod* nm = method->code(); | |
| 1614 if (nm != NULL) { | |
| 1615 nm->make_zombie(); | |
| 1616 method->clear_code(); | |
| 1617 } | |
| 1618 compile_count--; | |
| 1619 } | |
| 1620 } | |
| 1621 #endif /* COMPILER1 */ | |
| 1622 invoke_compiler_on_method(task); | |
| 1623 } else { | |
| 1624 // After compilation is disabled, remove remaining methods from queue | |
| 1625 method->clear_queued_for_compilation(); | |
| 1626 } | |
| 1627 } | |
| 1628 } | |
| 1629 } | |
| 1630 } | |
| 1631 | |
| 1632 | |
| 1633 // ------------------------------------------------------------------ | |
| 1634 // CompileBroker::init_compiler_thread_log | |
| 1635 // | |
| 1636 // Set up state required by +LogCompilation. | |
| 1637 void CompileBroker::init_compiler_thread_log() { | |
| 1638 CompilerThread* thread = CompilerThread::current(); | |
| 1639 char fileBuf[4*K]; | |
| 1640 FILE* fp = NULL; | |
| 1641 char* file = NULL; | |
| 1642 intx thread_id = os::current_thread_id(); | |
| 1643 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
| 1644 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
|
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1645 if (dir == NULL) { |
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1646 jio_snprintf(fileBuf, sizeof(fileBuf), "hs_c" UINTX_FORMAT "_pid%u.log", |
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1647 thread_id, os::current_process_id()); |
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1648 } else { |
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1649 jio_snprintf(fileBuf, sizeof(fileBuf), |
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1650 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
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1651 os::file_separator(), thread_id, os::current_process_id()); |
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1652 } |
| 0 | 1653 fp = fopen(fileBuf, "at"); |
| 1654 if (fp != NULL) { | |
| 1655 file = NEW_C_HEAP_ARRAY(char, strlen(fileBuf)+1); | |
| 1656 strcpy(file, fileBuf); | |
| 1657 break; | |
| 1658 } | |
| 1659 } | |
| 1660 if (fp == NULL) { | |
| 1661 warning("Cannot open log file: %s", fileBuf); | |
| 1662 } else { | |
| 1663 if (LogCompilation && Verbose) | |
| 1664 tty->print_cr("Opening compilation log %s", file); | |
| 1665 CompileLog* log = new(ResourceObj::C_HEAP) CompileLog(file, fp, thread_id); | |
| 1666 thread->init_log(log); | |
| 1667 | |
| 1668 if (xtty != NULL) { | |
| 1669 ttyLocker ttyl; | |
| 1670 | |
| 1671 // Record any per thread log files | |
| 1672 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file); | |
| 1673 } | |
| 1674 } | |
| 1675 } | |
| 1676 | |
| 1677 // ------------------------------------------------------------------ | |
| 1678 // CompileBroker::set_should_block | |
| 1679 // | |
| 1680 // Set _should_block. | |
| 1681 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
| 1682 void CompileBroker::set_should_block() { | |
| 1683 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
| 1684 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
| 1685 #ifndef PRODUCT | |
| 1686 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1687 tty->print_cr("notifying compiler thread pool to block"); | |
| 1688 #endif | |
| 1689 _should_block = true; | |
| 1690 } | |
| 1691 | |
| 1692 // ------------------------------------------------------------------ | |
| 1693 // CompileBroker::maybe_block | |
| 1694 // | |
| 1695 // Call this from the compiler at convenient points, to poll for _should_block. | |
| 1696 void CompileBroker::maybe_block() { | |
| 1697 if (_should_block) { | |
| 1698 #ifndef PRODUCT | |
| 1699 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1700 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
| 1701 #endif | |
| 1702 ThreadInVMfromNative tivfn(JavaThread::current()); | |
| 1703 } | |
| 1704 } | |
| 1705 | |
| 1706 | |
| 1707 // ------------------------------------------------------------------ | |
| 1708 // CompileBroker::invoke_compiler_on_method | |
| 1709 // | |
| 1710 // Compile a method. | |
| 1711 // | |
| 1712 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
| 1713 if (PrintCompilation) { | |
| 1714 ResourceMark rm; | |
| 1715 task->print_line(); | |
| 1716 } | |
| 1717 elapsedTimer time; | |
| 1718 | |
| 1719 CompilerThread* thread = CompilerThread::current(); | |
| 1720 ResourceMark rm(thread); | |
| 1721 | |
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1722 if (LogEvents) { |
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1723 _compilation_log->log_compile(thread, task); |
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1724 } |
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1725 |
| 0 | 1726 // Common flags. |
| 1727 uint compile_id = task->compile_id(); | |
| 1728 int osr_bci = task->osr_bci(); | |
| 1729 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1730 bool should_log = (thread->log() != NULL); | |
| 1731 bool should_break = false; | |
| 1732 { | |
| 1733 // create the handle inside it's own block so it can't | |
| 1734 // accidentally be referenced once the thread transitions to | |
| 1735 // native. The NoHandleMark before the transition should catch | |
| 1736 // any cases where this occurs in the future. | |
| 1737 methodHandle method(thread, | |
| 1738 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1739 should_break = check_break_at(method, compile_id, is_osr); | |
| 1740 if (should_log && !CompilerOracle::should_log(method)) { | |
| 1741 should_log = false; | |
| 1742 } | |
| 1743 assert(!method->is_native(), "no longer compile natives"); | |
| 1744 | |
| 1745 // Save information about this method in case of failure. | |
| 1746 set_last_compile(thread, method, is_osr, task->comp_level()); | |
| 1747 | |
| 1748 DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task->comp_level()), method); | |
| 1749 } | |
| 1750 | |
| 1751 // Allocate a new set of JNI handles. | |
| 1752 push_jni_handle_block(); | |
| 1753 jobject target_handle = JNIHandles::make_local(thread, JNIHandles::resolve(task->method_handle())); | |
| 1754 int compilable = ciEnv::MethodCompilable; | |
| 1755 { | |
| 1756 int system_dictionary_modification_counter; | |
| 1757 { | |
| 1758 MutexLocker locker(Compile_lock, thread); | |
| 1759 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
| 1760 } | |
| 1761 | |
| 1762 NoHandleMark nhm; | |
| 1763 ThreadToNativeFromVM ttn(thread); | |
| 1764 | |
| 1765 ciEnv ci_env(task, system_dictionary_modification_counter); | |
| 1766 if (should_break) { | |
| 1767 ci_env.set_break_at_compile(true); | |
| 1768 } | |
| 1769 if (should_log) { | |
| 1770 ci_env.set_log(thread->log()); | |
| 1771 } | |
| 1772 assert(thread->env() == &ci_env, "set by ci_env"); | |
| 1773 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
| 1774 | |
|
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1775 // Cache Jvmti state |
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1776 ci_env.cache_jvmti_state(); |
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1777 |
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1778 // Cache DTrace flags |
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1779 ci_env.cache_dtrace_flags(); |
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1780 |
| 0 | 1781 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
| 1782 | |
| 1783 TraceTime t1("compilation", &time); | |
| 1784 | |
| 1785 compiler(task->comp_level())->compile_method(&ci_env, target, osr_bci); | |
| 1786 | |
| 1787 if (!ci_env.failing() && task->code() == NULL) { | |
| 1788 //assert(false, "compiler should always document failure"); | |
| 1789 // The compiler elected, without comment, not to register a result. | |
| 1790 // Do not attempt further compilations of this method. | |
|
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1791 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
| 0 | 1792 } |
| 1793 | |
|
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1794 // Copy this bit to the enclosing block: |
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1795 compilable = ci_env.compilable(); |
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1796 |
| 0 | 1797 if (ci_env.failing()) { |
|
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1798 const char* retry_message = ci_env.retry_message(); |
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1799 if (_compilation_log != NULL) { |
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1800 _compilation_log->log_failure(thread, task, ci_env.failure_reason(), retry_message); |
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1801 } |
| 0 | 1802 if (PrintCompilation) { |
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1803 tty->print("%4d COMPILE SKIPPED: %s", compile_id, ci_env.failure_reason()); |
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1804 if (retry_message != NULL) { |
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1805 tty->print(" (%s)", retry_message); |
| 0 | 1806 } |
|
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1807 tty->cr(); |
| 0 | 1808 } |
| 1809 } else { | |
| 1810 task->mark_success(); | |
| 1811 task->set_num_inlined_bytecodes(ci_env.num_inlined_bytecodes()); | |
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1812 if (_compilation_log != NULL) { |
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1813 nmethod* code = task->code(); |
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1814 if (code != NULL) { |
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1815 _compilation_log->log_nmethod(thread, code); |
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1816 } |
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1817 } |
| 0 | 1818 } |
| 1819 } | |
| 1820 pop_jni_handle_block(); | |
| 1821 | |
| 1822 methodHandle method(thread, | |
| 1823 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1824 | |
| 1825 DTRACE_METHOD_COMPILE_END_PROBE(compiler(task->comp_level()), method, task->is_success()); | |
| 1826 | |
| 1827 collect_statistics(thread, time, task); | |
| 1828 | |
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1829 if (PrintCompilation && PrintCompilation2) { |
| 4047 | 1830 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); // print timestamp |
| 1831 tty->print("%4d ", compile_id); // print compilation number | |
| 1832 tty->print("%s ", (is_osr ? "%" : " ")); | |
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1833 int code_size = (task->code() == NULL) ? 0 : task->code()->total_size(); |
|
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1834 tty->print_cr("size: %d time: %d inlined: %d bytes", code_size, (int)time.milliseconds(), task->num_inlined_bytecodes()); |
| 4047 | 1835 } |
| 1836 | |
| 0 | 1837 if (compilable == ciEnv::MethodCompilable_never) { |
| 1838 if (is_osr) { | |
| 1839 method->set_not_osr_compilable(); | |
| 1840 } else { | |
|
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1841 method->set_not_compilable_quietly(); |
| 0 | 1842 } |
| 1843 } else if (compilable == ciEnv::MethodCompilable_not_at_tier) { | |
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1844 method->set_not_compilable_quietly(task->comp_level()); |
| 0 | 1845 } |
| 1846 | |
| 1847 // Note that the queued_for_compilation bits are cleared without | |
| 1848 // protection of a mutex. [They were set by the requester thread, | |
| 1849 // when adding the task to the complie queue -- at which time the | |
| 1850 // compile queue lock was held. Subsequently, we acquired the compile | |
| 1851 // queue lock to get this task off the compile queue; thus (to belabour | |
| 1852 // the point somewhat) our clearing of the bits must be occurring | |
| 1853 // only after the setting of the bits. See also 14012000 above. | |
| 1854 method->clear_queued_for_compilation(); | |
| 1855 | |
| 1856 #ifdef ASSERT | |
| 1857 if (CollectedHeap::fired_fake_oom()) { | |
| 1858 // The current compile received a fake OOM during compilation so | |
| 1859 // go ahead and exit the VM since the test apparently succeeded | |
| 1860 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
| 1861 vm_exit(0); | |
| 1862 } | |
| 1863 #endif | |
| 1864 } | |
| 1865 | |
| 1866 // ------------------------------------------------------------------ | |
| 1202 | 1867 // CompileBroker::handle_full_code_cache |
| 1868 // | |
| 1869 // The CodeCache is full. Print out warning and disable compilation or | |
| 1870 // try code cache cleaning so compilation can continue later. | |
| 1871 void CompileBroker::handle_full_code_cache() { | |
| 1872 UseInterpreter = true; | |
| 1873 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
|
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1874 if (xtty != NULL) { |
|
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1875 stringStream s; |
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1876 // Dump code cache state into a buffer before locking the tty, |
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1877 // because log_state() will use locks causing lock conflicts. |
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1878 CodeCache::log_state(&s); |
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1879 // Lock to prevent tearing |
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1880 ttyLocker ttyl; |
|
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1881 xtty->begin_elem("code_cache_full"); |
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1882 xtty->print(s.as_string()); |
|
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1883 xtty->stamp(); |
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1884 xtty->end_elem(); |
| 1202 | 1885 } |
|
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1886 warning("CodeCache is full. Compiler has been disabled."); |
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1887 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
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1888 CodeCache::print_bounds(tty); |
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1889 #ifndef PRODUCT |
| 1202 | 1890 if (CompileTheWorld || ExitOnFullCodeCache) { |
| 1891 before_exit(JavaThread::current()); | |
| 1892 exit_globals(); // will delete tty | |
| 1893 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
| 1894 } | |
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1895 #endif |
| 1202 | 1896 if (UseCodeCacheFlushing) { |
| 1897 NMethodSweeper::handle_full_code_cache(true); | |
| 1898 } else { | |
| 1899 UseCompiler = false; | |
| 1900 AlwaysCompileLoopMethods = false; | |
| 1901 } | |
| 1902 } | |
| 1903 } | |
| 1904 | |
| 1905 // ------------------------------------------------------------------ | |
| 0 | 1906 // CompileBroker::set_last_compile |
| 1907 // | |
| 1908 // Record this compilation for debugging purposes. | |
| 1909 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
| 1910 ResourceMark rm; | |
| 1911 char* method_name = method->name()->as_C_string(); | |
| 1912 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
| 1913 char current_method[CompilerCounters::cmname_buffer_length]; | |
| 1914 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
| 1915 | |
| 1916 if (UsePerfData) { | |
| 1917 const char* class_name = method->method_holder()->klass_part()->name()->as_C_string(); | |
| 1918 | |
| 1919 size_t s1len = strlen(class_name); | |
| 1920 size_t s2len = strlen(method_name); | |
| 1921 | |
| 1922 // check if we need to truncate the string | |
| 1923 if (s1len + s2len + 2 > maxLen) { | |
| 1924 | |
| 1925 // the strategy is to lop off the leading characters of the | |
| 1926 // class name and the trailing characters of the method name. | |
| 1927 | |
| 1928 if (s2len + 2 > maxLen) { | |
| 1929 // lop of the entire class name string, let snprintf handle | |
| 1930 // truncation of the method name. | |
| 1931 class_name += s1len; // null string | |
| 1932 } | |
| 1933 else { | |
| 1934 // lop off the extra characters from the front of the class name | |
| 1935 class_name += ((s1len + s2len + 2) - maxLen); | |
| 1936 } | |
| 1937 } | |
| 1938 | |
| 1939 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
| 1940 } | |
| 1941 | |
| 1942 if (CICountOSR && is_osr) { | |
| 1943 _last_compile_type = osr_compile; | |
| 1944 } else { | |
| 1945 _last_compile_type = normal_compile; | |
| 1946 } | |
| 1947 _last_compile_level = comp_level; | |
| 1948 | |
| 1949 if (UsePerfData) { | |
| 1950 CompilerCounters* counters = thread->counters(); | |
| 1951 counters->set_current_method(current_method); | |
| 1952 counters->set_compile_type((jlong)_last_compile_type); | |
| 1953 } | |
| 1954 } | |
| 1955 | |
| 1956 | |
| 1957 // ------------------------------------------------------------------ | |
| 1958 // CompileBroker::push_jni_handle_block | |
| 1959 // | |
| 1960 // Push on a new block of JNI handles. | |
| 1961 void CompileBroker::push_jni_handle_block() { | |
| 1962 JavaThread* thread = JavaThread::current(); | |
| 1963 | |
| 1964 // Allocate a new block for JNI handles. | |
| 1965 // Inlined code from jni_PushLocalFrame() | |
| 1966 JNIHandleBlock* java_handles = thread->active_handles(); | |
| 1967 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
| 1968 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
| 1969 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
| 1970 thread->set_active_handles(compile_handles); | |
| 1971 } | |
| 1972 | |
| 1973 | |
| 1974 // ------------------------------------------------------------------ | |
| 1975 // CompileBroker::pop_jni_handle_block | |
| 1976 // | |
| 1977 // Pop off the current block of JNI handles. | |
| 1978 void CompileBroker::pop_jni_handle_block() { | |
| 1979 JavaThread* thread = JavaThread::current(); | |
| 1980 | |
| 1981 // Release our JNI handle block | |
| 1982 JNIHandleBlock* compile_handles = thread->active_handles(); | |
| 1983 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
| 1984 thread->set_active_handles(java_handles); | |
| 1985 compile_handles->set_pop_frame_link(NULL); | |
| 1986 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
| 1987 } | |
| 1988 | |
| 1989 | |
| 1990 // ------------------------------------------------------------------ | |
| 1991 // CompileBroker::check_break_at | |
| 1992 // | |
| 1993 // Should the compilation break at the current compilation. | |
| 1994 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
| 1995 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
| 1996 return true; | |
| 1997 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
| 1998 return true; | |
| 1999 } else { | |
| 2000 return (compile_id == CIBreakAt); | |
| 2001 } | |
| 2002 } | |
| 2003 | |
| 2004 // ------------------------------------------------------------------ | |
| 2005 // CompileBroker::collect_statistics | |
| 2006 // | |
| 2007 // Collect statistics about the compilation. | |
| 2008 | |
| 2009 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
| 2010 bool success = task->is_success(); | |
| 2011 methodHandle method (thread, (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 2012 uint compile_id = task->compile_id(); | |
| 2013 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
| 2014 nmethod* code = task->code(); | |
| 2015 CompilerCounters* counters = thread->counters(); | |
| 2016 | |
| 2017 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
| 2018 MutexLocker locker(CompileStatistics_lock); | |
| 2019 | |
| 2020 // _perf variables are production performance counters which are | |
| 2021 // updated regardless of the setting of the CITime and CITimeEach flags | |
| 2022 // | |
| 2023 if (!success) { | |
| 2024 _total_bailout_count++; | |
| 2025 if (UsePerfData) { | |
| 2026 _perf_last_failed_method->set_value(counters->current_method()); | |
| 2027 _perf_last_failed_type->set_value(counters->compile_type()); | |
| 2028 _perf_total_bailout_count->inc(); | |
| 2029 } | |
| 2030 } else if (code == NULL) { | |
| 2031 if (UsePerfData) { | |
| 2032 _perf_last_invalidated_method->set_value(counters->current_method()); | |
| 2033 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
| 2034 _perf_total_invalidated_count->inc(); | |
| 2035 } | |
| 2036 _total_invalidated_count++; | |
| 2037 } else { | |
| 2038 // Compilation succeeded | |
| 2039 | |
| 2040 // update compilation ticks - used by the implementation of | |
| 2041 // java.lang.management.CompilationMBean | |
| 2042 _perf_total_compilation->inc(time.ticks()); | |
| 2043 | |
| 2044 if (CITime) { | |
| 2045 _t_total_compilation.add(time); | |
| 2046 if (is_osr) { | |
| 2047 _t_osr_compilation.add(time); | |
| 2048 _sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 2049 } else { | |
| 2050 _t_standard_compilation.add(time); | |
| 2051 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 2052 } | |
| 2053 } | |
| 2054 | |
| 2055 if (UsePerfData) { | |
| 2056 // save the name of the last method compiled | |
| 2057 _perf_last_method->set_value(counters->current_method()); | |
| 2058 _perf_last_compile_type->set_value(counters->compile_type()); | |
| 2059 _perf_last_compile_size->set_value(method->code_size() + | |
| 2060 task->num_inlined_bytecodes()); | |
| 2061 if (is_osr) { | |
| 2062 _perf_osr_compilation->inc(time.ticks()); | |
| 2063 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2064 } else { | |
| 2065 _perf_standard_compilation->inc(time.ticks()); | |
| 2066 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2067 } | |
| 2068 } | |
| 2069 | |
| 2070 if (CITimeEach) { | |
| 2071 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
| 2072 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
| 2073 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
| 2074 } | |
| 2075 | |
| 2076 // Collect counts of successful compilations | |
| 1748 | 2077 _sum_nmethod_size += code->total_size(); |
| 2078 _sum_nmethod_code_size += code->insts_size(); | |
| 0 | 2079 _total_compile_count++; |
| 2080 | |
| 2081 if (UsePerfData) { | |
| 1748 | 2082 _perf_sum_nmethod_size->inc( code->total_size()); |
| 2083 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
| 0 | 2084 _perf_total_compile_count->inc(); |
| 2085 } | |
| 2086 | |
| 2087 if (is_osr) { | |
| 2088 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
| 2089 _total_osr_compile_count++; | |
| 2090 } else { | |
| 2091 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
| 2092 _total_standard_compile_count++; | |
| 2093 } | |
| 2094 } | |
| 2095 // set the current method for the thread to null | |
| 2096 if (UsePerfData) counters->set_current_method(""); | |
| 2097 } | |
| 2098 | |
| 2099 | |
| 2100 | |
| 2101 void CompileBroker::print_times() { | |
| 2102 tty->cr(); | |
| 2103 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
| 2104 tty->print_cr("------------------------------------------------"); | |
| 2105 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
| 2106 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
| 2107 tty->print_cr(" Total compilation time : %6.3f s", CompileBroker::_t_total_compilation.seconds()); | |
| 2108 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", | |
| 2109 CompileBroker::_t_standard_compilation.seconds(), | |
| 2110 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count); | |
| 2111 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 | 2112 |
| 1783 | 2113 if (compiler(CompLevel_simple) != NULL) { |
| 2114 compiler(CompLevel_simple)->print_timers(); | |
| 0 | 2115 } |
| 1783 | 2116 if (compiler(CompLevel_full_optimization) != NULL) { |
| 2117 compiler(CompLevel_full_optimization)->print_timers(); | |
| 2118 } | |
| 0 | 2119 tty->cr(); |
| 2120 int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled; | |
| 2121 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); | |
| 2122 tty->print_cr(" Standard compilation : %6d bytes", CompileBroker::_sum_standard_bytes_compiled); | |
| 2123 tty->print_cr(" On stack replacement : %6d bytes", CompileBroker::_sum_osr_bytes_compiled); | |
| 2124 int bps = (int)(tcb / CompileBroker::_t_total_compilation.seconds()); | |
| 2125 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); | |
| 2126 tty->cr(); | |
| 2127 tty->print_cr(" nmethod code size : %6d bytes", CompileBroker::_sum_nmethod_code_size); | |
| 2128 tty->print_cr(" nmethod total size : %6d bytes", CompileBroker::_sum_nmethod_size); | |
| 2129 } | |
| 2130 | |
| 2131 | |
| 2132 // Debugging output for failure | |
| 2133 void CompileBroker::print_last_compile() { | |
| 2134 if ( _last_compile_level != CompLevel_none && | |
| 2135 compiler(_last_compile_level) != NULL && | |
| 2136 _last_method_compiled != NULL && | |
| 2137 _last_compile_type != no_compile) { | |
| 2138 if (_last_compile_type == osr_compile) { | |
| 2139 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
| 2140 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
| 2141 } else { | |
| 2142 tty->print_cr("Last parse: %d+++(%d) %s", | |
| 2143 _compilation_id, _last_compile_level, _last_method_compiled); | |
| 2144 } | |
| 2145 } | |
| 2146 } | |
| 2147 | |
| 2148 | |
| 2149 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
| 2150 #ifndef PRODUCT | |
| 2151 st->print_cr("Compiler thread printing unimplemented."); | |
| 2152 st->cr(); | |
| 2153 #endif | |
| 2154 } |