Mercurial > hg > graal-compiler
annotate src/share/vm/compiler/compileBroker.cpp @ 7568:140d4d4ab3b9
added per-compiler compilation speed statistics for C1 and C2 (included in output produced by -XX:+CITime)
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Wed, 30 Jan 2013 21:36:28 +0100 |
| parents | 989155e2d07a |
| children | 3ac7d10a6572 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "classfile/vmSymbols.hpp" | |
| 28 #include "code/codeCache.hpp" | |
| 29 #include "compiler/compileBroker.hpp" | |
| 30 #include "compiler/compileLog.hpp" | |
| 31 #include "compiler/compilerOracle.hpp" | |
| 32 #include "interpreter/linkResolver.hpp" | |
| 33 #include "memory/allocation.inline.hpp" | |
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34 #include "oops/methodData.hpp" |
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35 #include "oops/method.hpp" |
| 1972 | 36 #include "oops/oop.inline.hpp" |
| 37 #include "prims/nativeLookup.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
| 39 #include "runtime/compilationPolicy.hpp" | |
| 40 #include "runtime/init.hpp" | |
| 41 #include "runtime/interfaceSupport.hpp" | |
| 42 #include "runtime/javaCalls.hpp" | |
| 43 #include "runtime/os.hpp" | |
| 44 #include "runtime/sharedRuntime.hpp" | |
| 45 #include "runtime/sweeper.hpp" | |
| 46 #include "utilities/dtrace.hpp" | |
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47 #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 | |
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54 #ifdef GRAAL |
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55 #include "graal/graalCompiler.hpp" |
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56 #endif |
| 1972 | 57 #ifdef COMPILER2 |
| 58 #include "opto/c2compiler.hpp" | |
| 59 #endif | |
| 60 #ifdef SHARK | |
| 61 #include "shark/sharkCompiler.hpp" | |
| 62 #endif | |
| 0 | 63 |
| 64 #ifdef DTRACE_ENABLED | |
| 65 | |
| 66 // Only bother with this argument setup if dtrace is available | |
| 67 | |
| 4006 | 68 #ifndef USDT2 |
| 0 | 69 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, |
| 70 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
| 71 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
| 72 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
| 73 | |
| 74 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 75 { \ | |
| 76 char* comp_name = (char*)(compiler)->name(); \ | |
|
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77 Symbol* klass_name = (method)->klass_name(); \ |
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78 Symbol* name = (method)->name(); \ |
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79 Symbol* signature = (method)->signature(); \ |
| 0 | 80 HS_DTRACE_PROBE8(hotspot, method__compile__begin, \ |
| 81 comp_name, strlen(comp_name), \ | |
| 82 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 83 name->bytes(), name->utf8_length(), \ | |
| 84 signature->bytes(), signature->utf8_length()); \ | |
| 85 } | |
| 86 | |
| 87 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 88 { \ | |
| 89 char* comp_name = (char*)(compiler)->name(); \ | |
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90 Symbol* klass_name = (method)->klass_name(); \ |
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91 Symbol* name = (method)->name(); \ |
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92 Symbol* signature = (method)->signature(); \ |
| 0 | 93 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ |
| 94 comp_name, strlen(comp_name), \ | |
| 95 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 96 name->bytes(), name->utf8_length(), \ | |
| 97 signature->bytes(), signature->utf8_length(), (success)); \ | |
| 98 } | |
| 99 | |
| 4006 | 100 #else /* USDT2 */ |
| 101 | |
| 102 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 103 { \ | |
| 104 char* comp_name = (char*)(compiler)->name(); \ | |
| 105 Symbol* klass_name = (method)->klass_name(); \ | |
| 106 Symbol* name = (method)->name(); \ | |
| 107 Symbol* signature = (method)->signature(); \ | |
| 108 HOTSPOT_METHOD_COMPILE_BEGIN( \ | |
| 109 comp_name, strlen(comp_name), \ | |
| 110 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 111 (char *) name->bytes(), name->utf8_length(), \ | |
| 112 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 113 } | |
| 114 | |
| 115 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 116 { \ | |
| 117 char* comp_name = (char*)(compiler)->name(); \ | |
| 118 Symbol* klass_name = (method)->klass_name(); \ | |
| 119 Symbol* name = (method)->name(); \ | |
| 120 Symbol* signature = (method)->signature(); \ | |
| 121 HOTSPOT_METHOD_COMPILE_END( \ | |
| 122 comp_name, strlen(comp_name), \ | |
| 123 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 124 (char *) name->bytes(), name->utf8_length(), \ | |
| 125 (char *) signature->bytes(), signature->utf8_length(), (success)); \ | |
| 126 } | |
| 127 #endif /* USDT2 */ | |
| 128 | |
| 0 | 129 #else // ndef DTRACE_ENABLED |
| 130 | |
| 131 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) | |
| 132 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) | |
| 133 | |
| 134 #endif // ndef DTRACE_ENABLED | |
| 135 | |
| 136 bool CompileBroker::_initialized = false; | |
| 137 volatile bool CompileBroker::_should_block = false; | |
| 1202 | 138 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
| 0 | 139 |
| 140 // The installed compiler(s) | |
| 141 AbstractCompiler* CompileBroker::_compilers[2]; | |
| 142 | |
| 143 // These counters are used for assigning id's to each compilation | |
| 144 uint CompileBroker::_compilation_id = 0; | |
| 145 uint CompileBroker::_osr_compilation_id = 0; | |
| 146 | |
| 147 // Debugging information | |
| 148 int CompileBroker::_last_compile_type = no_compile; | |
| 149 int CompileBroker::_last_compile_level = CompLevel_none; | |
| 150 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
| 151 | |
| 152 // Performance counters | |
| 153 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
| 154 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
| 155 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
| 156 | |
| 157 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
| 158 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
| 159 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
| 160 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
| 161 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
| 162 | |
| 163 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
| 164 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
| 165 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
| 166 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
| 167 | |
| 168 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
| 169 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
| 170 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
| 171 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
| 172 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
| 173 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
| 174 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
| 175 | |
| 176 // Timers and counters for generating statistics | |
| 177 elapsedTimer CompileBroker::_t_total_compilation; | |
| 178 elapsedTimer CompileBroker::_t_osr_compilation; | |
| 179 elapsedTimer CompileBroker::_t_standard_compilation; | |
| 180 | |
| 181 int CompileBroker::_total_bailout_count = 0; | |
| 182 int CompileBroker::_total_invalidated_count = 0; | |
| 183 int CompileBroker::_total_compile_count = 0; | |
| 184 int CompileBroker::_total_osr_compile_count = 0; | |
| 185 int CompileBroker::_total_standard_compile_count = 0; | |
| 186 | |
| 187 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
| 188 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
| 189 int CompileBroker::_sum_nmethod_size = 0; | |
| 190 int CompileBroker::_sum_nmethod_code_size = 0; | |
| 191 | |
| 1783 | 192 CompileQueue* CompileBroker::_c2_method_queue = NULL; |
| 193 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
| 0 | 194 CompileTask* CompileBroker::_task_free_list = NULL; |
| 195 | |
| 196 GrowableArray<CompilerThread*>* CompileBroker::_method_threads = NULL; | |
| 197 | |
| 198 | |
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199 class CompilationLog : public StringEventLog { |
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200 public: |
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201 CompilationLog() : StringEventLog("Compilation events") { |
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202 } |
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203 |
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204 void log_compile(JavaThread* thread, CompileTask* task) { |
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205 StringLogMessage lm; |
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206 stringStream sstr = lm.stream(); |
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207 // msg.time_stamp().update_to(tty->time_stamp().ticks()); |
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208 task->print_compilation(&sstr, NULL, true); |
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209 log(thread, "%s", (const char*)lm); |
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210 } |
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211 |
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212 void log_nmethod(JavaThread* thread, nmethod* nm) { |
| 4944 | 213 log(thread, "nmethod %d%s " INTPTR_FORMAT " code ["INTPTR_FORMAT ", " INTPTR_FORMAT "]", |
| 214 nm->compile_id(), nm->is_osr_method() ? "%" : "", | |
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215 nm, nm->code_begin(), nm->code_end()); |
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216 } |
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217 |
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218 void log_failure(JavaThread* thread, CompileTask* task, const char* reason, const char* retry_message) { |
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219 StringLogMessage lm; |
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220 lm.print("%4d COMPILE SKIPPED: %s", task->compile_id(), reason); |
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221 if (retry_message != NULL) { |
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222 lm.append(" (%s)", retry_message); |
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223 } |
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224 lm.print("\n"); |
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225 log(thread, "%s", (const char*)lm); |
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226 } |
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227 }; |
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228 |
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229 static CompilationLog* _compilation_log = NULL; |
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230 |
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231 void compileBroker_init() { |
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232 if (LogEvents) { |
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233 _compilation_log = new CompilationLog(); |
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234 } |
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235 } |
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236 |
| 0 | 237 CompileTaskWrapper::CompileTaskWrapper(CompileTask* task) { |
| 238 CompilerThread* thread = CompilerThread::current(); | |
| 239 thread->set_task(task); | |
| 240 CompileLog* log = thread->log(); | |
| 241 if (log != NULL) task->log_task_start(log); | |
| 242 } | |
| 243 | |
| 244 CompileTaskWrapper::~CompileTaskWrapper() { | |
| 245 CompilerThread* thread = CompilerThread::current(); | |
| 246 CompileTask* task = thread->task(); | |
| 247 CompileLog* log = thread->log(); | |
| 248 if (log != NULL) task->log_task_done(log); | |
| 249 thread->set_task(NULL); | |
| 250 task->set_code_handle(NULL); | |
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251 thread->set_env(NULL); |
| 0 | 252 if (task->is_blocking()) { |
| 253 MutexLocker notifier(task->lock(), thread); | |
| 254 task->mark_complete(); | |
| 255 // Notify the waiting thread that the compilation has completed. | |
| 256 task->lock()->notify_all(); | |
| 257 } else { | |
| 258 task->mark_complete(); | |
| 259 | |
| 260 // By convention, the compiling thread is responsible for | |
| 261 // recycling a non-blocking CompileTask. | |
| 262 CompileBroker::free_task(task); | |
| 263 } | |
| 264 } | |
| 265 | |
| 266 | |
| 267 // ------------------------------------------------------------------ | |
| 268 // CompileTask::initialize | |
| 269 void CompileTask::initialize(int compile_id, | |
| 270 methodHandle method, | |
| 271 int osr_bci, | |
| 272 int comp_level, | |
| 273 methodHandle hot_method, | |
| 274 int hot_count, | |
| 275 const char* comment, | |
| 276 bool is_blocking) { | |
| 277 assert(!_lock->is_locked(), "bad locking"); | |
| 278 | |
| 279 _compile_id = compile_id; | |
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280 _method = method(); |
| 7409 | 281 _method_holder = JNIHandles::make_global(method->method_holder()->klass_holder()); |
| 0 | 282 _osr_bci = osr_bci; |
| 283 _is_blocking = is_blocking; | |
| 284 _comp_level = comp_level; | |
| 285 _num_inlined_bytecodes = 0; | |
| 286 | |
| 287 _is_complete = false; | |
| 288 _is_success = false; | |
| 289 _code_handle = NULL; | |
| 290 | |
| 291 _hot_method = NULL; | |
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292 _hot_method_holder = NULL; |
| 0 | 293 _hot_count = hot_count; |
| 294 _time_queued = 0; // tidy | |
| 295 _comment = comment; | |
| 296 | |
| 297 if (LogCompilation) { | |
| 298 _time_queued = os::elapsed_counter(); | |
| 299 if (hot_method.not_null()) { | |
| 300 if (hot_method == method) { | |
| 301 _hot_method = _method; | |
| 302 } else { | |
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303 _hot_method = hot_method(); |
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304 // only add loader or mirror if different from _method_holder |
| 7409 | 305 _hot_method_holder = JNIHandles::make_global(hot_method->method_holder()->klass_holder()); |
| 0 | 306 } |
| 307 } | |
| 308 } | |
| 309 | |
| 310 _next = NULL; | |
| 311 } | |
| 312 | |
| 313 // ------------------------------------------------------------------ | |
| 314 // CompileTask::code/set_code | |
| 315 nmethod* CompileTask::code() const { | |
| 316 if (_code_handle == NULL) return NULL; | |
| 317 return _code_handle->code(); | |
| 318 } | |
| 319 void CompileTask::set_code(nmethod* nm) { | |
| 320 if (_code_handle == NULL && nm == NULL) return; | |
| 321 guarantee(_code_handle != NULL, ""); | |
| 322 _code_handle->set_code(nm); | |
| 323 if (nm == NULL) _code_handle = NULL; // drop the handle also | |
| 324 } | |
| 325 | |
| 326 // ------------------------------------------------------------------ | |
| 327 // CompileTask::free | |
| 328 void CompileTask::free() { | |
| 329 set_code(NULL); | |
| 330 assert(!_lock->is_locked(), "Should not be locked when freed"); | |
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331 JNIHandles::destroy_global(_method_holder); |
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332 JNIHandles::destroy_global(_hot_method_holder); |
| 0 | 333 } |
| 334 | |
| 335 | |
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336 void CompileTask::mark_on_stack() { |
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337 // Mark these methods as something redefine classes cannot remove. |
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338 _method->set_on_stack(true); |
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339 if (_hot_method != NULL) { |
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340 _hot_method->set_on_stack(true); |
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341 } |
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342 } |
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343 |
| 0 | 344 // ------------------------------------------------------------------ |
| 345 // CompileTask::print | |
| 346 void CompileTask::print() { | |
| 347 tty->print("<CompileTask compile_id=%d ", _compile_id); | |
| 348 tty->print("method="); | |
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349 _method->print_name(tty); |
| 0 | 350 tty->print_cr(" osr_bci=%d is_blocking=%s is_complete=%s is_success=%s>", |
| 351 _osr_bci, bool_to_str(_is_blocking), | |
| 352 bool_to_str(_is_complete), bool_to_str(_is_success)); | |
| 353 } | |
| 354 | |
| 1783 | 355 |
| 0 | 356 // ------------------------------------------------------------------ |
| 357 // CompileTask::print_line_on_error | |
| 358 // | |
| 359 // This function is called by fatal error handler when the thread | |
| 360 // causing troubles is a compiler thread. | |
| 361 // | |
| 362 // Do not grab any lock, do not allocate memory. | |
| 363 // | |
| 364 // Otherwise it's the same as CompileTask::print_line() | |
| 365 // | |
| 366 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) { | |
| 367 // print compiler name | |
| 368 st->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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369 print_compilation(st); |
| 0 | 370 } |
| 371 | |
| 372 // ------------------------------------------------------------------ | |
| 373 // CompileTask::print_line | |
| 374 void CompileTask::print_line() { | |
| 375 ttyLocker ttyl; // keep the following output all in one block | |
| 376 // print compiler name if requested | |
| 377 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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378 print_compilation(); |
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379 } |
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380 |
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381 |
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382 // ------------------------------------------------------------------ |
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383 // CompileTask::print_compilation_impl |
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384 void CompileTask::print_compilation_impl(outputStream* st, Method* method, int compile_id, int comp_level, |
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385 bool is_osr_method, int osr_bci, bool is_blocking, |
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386 const char* msg, bool short_form) { |
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387 if (!short_form) { |
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388 st->print("%7d ", (int) st->time_stamp().milliseconds()); // print timestamp |
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389 } |
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390 st->print("%4d ", compile_id); // print compilation number |
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391 |
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392 // For unloaded methods the transition to zombie occurs after the |
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393 // method is cleared so it's impossible to report accurate |
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394 // information for that case. |
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395 bool is_synchronized = false; |
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396 bool has_exception_handler = false; |
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397 bool is_native = false; |
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398 if (method != NULL) { |
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399 is_synchronized = method->is_synchronized(); |
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400 has_exception_handler = method->has_exception_handler(); |
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401 is_native = method->is_native(); |
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402 } |
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403 // method attributes |
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404 const char compile_type = is_osr_method ? '%' : ' '; |
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405 const char sync_char = is_synchronized ? 's' : ' '; |
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406 const char exception_char = has_exception_handler ? '!' : ' '; |
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407 const char blocking_char = is_blocking ? 'b' : ' '; |
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408 const char native_char = is_native ? 'n' : ' '; |
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409 |
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410 // print method attributes |
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411 st->print("%c%c%c%c%c ", compile_type, sync_char, exception_char, blocking_char, native_char); |
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412 |
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413 if (TieredCompilation) { |
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414 if (comp_level != -1) st->print("%d ", comp_level); |
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415 else st->print("- "); |
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416 } |
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417 st->print(" "); // more indent |
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418 |
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419 if (method == NULL) { |
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420 st->print("(method)"); |
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421 } else { |
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422 method->print_short_name(st); |
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423 if (is_osr_method) { |
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424 st->print(" @ %d", osr_bci); |
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425 } |
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426 if (method->is_native()) |
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427 st->print(" (native)"); |
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428 else |
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429 st->print(" (%d bytes)", method->code_size()); |
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430 } |
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431 |
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432 if (msg != NULL) { |
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433 st->print(" %s", msg); |
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434 } |
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435 if (!short_form) { |
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436 st->cr(); |
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437 } |
| 0 | 438 } |
| 439 | |
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440 // ------------------------------------------------------------------ |
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441 // CompileTask::print_inlining |
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442 void CompileTask::print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg) { |
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443 // 1234567 |
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444 st->print(" "); // print timestamp |
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445 // 1234 |
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446 st->print(" "); // print compilation number |
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447 |
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448 // method attributes |
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449 if (method->is_loaded()) { |
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450 const char sync_char = method->is_synchronized() ? 's' : ' '; |
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451 const char exception_char = method->has_exception_handlers() ? '!' : ' '; |
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452 const char monitors_char = method->has_monitor_bytecodes() ? 'm' : ' '; |
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453 |
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454 // print method attributes |
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455 st->print(" %c%c%c ", sync_char, exception_char, monitors_char); |
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456 } else { |
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457 // %s!bn |
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458 st->print(" "); // print method attributes |
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459 } |
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460 |
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461 if (TieredCompilation) { |
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462 st->print(" "); |
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463 } |
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464 st->print(" "); // more indent |
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465 st->print(" "); // initial inlining indent |
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466 |
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467 for (int i = 0; i < inline_level; i++) st->print(" "); |
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468 |
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469 st->print("@ %d ", bci); // print bci |
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470 method->print_short_name(st); |
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471 if (method->is_loaded()) |
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472 st->print(" (%d bytes)", method->code_size()); |
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473 else |
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474 st->print(" (not loaded)"); |
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475 |
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476 if (msg != NULL) { |
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477 st->print(" %s", msg); |
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478 } |
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479 st->cr(); |
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480 } |
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481 |
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482 // ------------------------------------------------------------------ |
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483 // CompileTask::print_inline_indent |
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484 void CompileTask::print_inline_indent(int inline_level, outputStream* st) { |
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485 // 1234567 |
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486 st->print(" "); // print timestamp |
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487 // 1234 |
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488 st->print(" "); // print compilation number |
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489 // %s!bn |
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490 st->print(" "); // print method attributes |
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491 if (TieredCompilation) { |
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492 st->print(" "); |
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493 } |
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494 st->print(" "); // more indent |
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495 st->print(" "); // initial inlining indent |
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496 for (int i = 0; i < inline_level; i++) st->print(" "); |
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497 } |
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498 |
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499 // ------------------------------------------------------------------ |
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500 // CompileTask::print_compilation |
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501 void CompileTask::print_compilation(outputStream* st, const char* msg, bool short_form) { |
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502 bool is_osr_method = osr_bci() != InvocationEntryBci; |
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503 print_compilation_impl(st, method(), compile_id(), comp_level(), is_osr_method, osr_bci(), is_blocking(), msg, short_form); |
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504 } |
| 0 | 505 |
| 506 // ------------------------------------------------------------------ | |
| 507 // CompileTask::log_task | |
| 508 void CompileTask::log_task(xmlStream* log) { | |
| 509 Thread* thread = Thread::current(); | |
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510 methodHandle method(thread, this->method()); |
| 0 | 511 ResourceMark rm(thread); |
| 512 | |
| 513 // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'> | |
| 514 if (_compile_id != 0) log->print(" compile_id='%d'", _compile_id); | |
| 515 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 516 log->print(" compile_kind='osr'"); // same as nmethod::compile_kind | |
| 517 } // else compile_kind='c2c' | |
| 518 if (!method.is_null()) log->method(method); | |
| 519 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 520 log->print(" osr_bci='%d'", _osr_bci); | |
| 521 } | |
| 522 if (_comp_level != CompLevel_highest_tier) { | |
| 523 log->print(" level='%d'", _comp_level); | |
| 524 } | |
| 525 if (_is_blocking) { | |
| 526 log->print(" blocking='1'"); | |
| 527 } | |
| 528 log->stamp(); | |
| 529 } | |
| 530 | |
| 531 | |
| 532 // ------------------------------------------------------------------ | |
| 533 // CompileTask::log_task_queued | |
| 534 void CompileTask::log_task_queued() { | |
| 535 Thread* thread = Thread::current(); | |
| 536 ttyLocker ttyl; | |
| 537 ResourceMark rm(thread); | |
| 538 | |
| 539 xtty->begin_elem("task_queued"); | |
| 540 log_task(xtty); | |
| 541 if (_comment != NULL) { | |
| 542 xtty->print(" comment='%s'", _comment); | |
| 543 } | |
| 544 if (_hot_method != NULL) { | |
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545 methodHandle hot(thread, _hot_method); |
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546 methodHandle method(thread, _method); |
| 0 | 547 if (hot() != method()) { |
| 548 xtty->method(hot); | |
| 549 } | |
| 550 } | |
| 551 if (_hot_count != 0) { | |
| 552 xtty->print(" hot_count='%d'", _hot_count); | |
| 553 } | |
| 554 xtty->end_elem(); | |
| 555 } | |
| 556 | |
| 557 | |
| 558 // ------------------------------------------------------------------ | |
| 559 // CompileTask::log_task_start | |
| 560 void CompileTask::log_task_start(CompileLog* log) { | |
| 561 log->begin_head("task"); | |
| 562 log_task(log); | |
| 563 log->end_head(); | |
| 564 } | |
| 565 | |
| 566 | |
| 567 // ------------------------------------------------------------------ | |
| 568 // CompileTask::log_task_done | |
| 569 void CompileTask::log_task_done(CompileLog* log) { | |
| 570 Thread* thread = Thread::current(); | |
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571 methodHandle method(thread, this->method()); |
| 0 | 572 ResourceMark rm(thread); |
| 573 | |
| 574 // <task_done ... stamp='1.234'> </task> | |
| 575 nmethod* nm = code(); | |
| 576 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
| 1748 | 577 _is_success, nm == NULL ? 0 : nm->content_size(), |
| 0 | 578 method->invocation_count()); |
| 579 int bec = method->backedge_count(); | |
| 580 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
| 581 // Note: "_is_complete" is about to be set, but is not. | |
| 582 if (_num_inlined_bytecodes != 0) { | |
| 583 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
| 584 } | |
| 585 log->stamp(); | |
| 586 log->end_elem(); | |
| 587 log->tail("task"); | |
| 588 log->clear_identities(); // next task will have different CI | |
| 589 if (log->unflushed_count() > 2000) { | |
| 590 log->flush(); | |
| 591 } | |
| 592 log->mark_file_end(); | |
| 593 } | |
| 594 | |
| 595 | |
| 596 | |
| 597 // ------------------------------------------------------------------ | |
| 598 // CompileQueue::add | |
| 599 // | |
| 600 // Add a CompileTask to a CompileQueue | |
| 601 void CompileQueue::add(CompileTask* task) { | |
| 602 assert(lock()->owned_by_self(), "must own lock"); | |
| 603 | |
| 604 task->set_next(NULL); | |
| 1783 | 605 task->set_prev(NULL); |
| 0 | 606 |
| 607 if (_last == NULL) { | |
| 608 // The compile queue is empty. | |
| 609 assert(_first == NULL, "queue is empty"); | |
| 610 _first = task; | |
| 611 _last = task; | |
| 612 } else { | |
| 613 // Append the task to the queue. | |
| 614 assert(_last->next() == NULL, "not last"); | |
| 615 _last->set_next(task); | |
| 1783 | 616 task->set_prev(_last); |
| 0 | 617 _last = task; |
| 618 } | |
| 1783 | 619 ++_size; |
| 0 | 620 |
| 621 // Mark the method as being in the compile queue. | |
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622 task->method()->set_queued_for_compilation(); |
| 0 | 623 |
| 624 if (CIPrintCompileQueue) { | |
| 625 print(); | |
| 626 } | |
| 627 | |
| 628 if (LogCompilation && xtty != NULL) { | |
| 629 task->log_task_queued(); | |
| 630 } | |
| 631 | |
| 632 // Notify CompilerThreads that a task is available. | |
| 1783 | 633 lock()->notify_all(); |
| 0 | 634 } |
| 635 | |
| 636 // ------------------------------------------------------------------ | |
| 637 // CompileQueue::get | |
| 638 // | |
| 639 // Get the next CompileTask from a CompileQueue | |
| 640 CompileTask* CompileQueue::get() { | |
|
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641 NMethodSweeper::possibly_sweep(); |
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642 |
| 0 | 643 MutexLocker locker(lock()); |
| 644 // Wait for an available CompileTask. | |
| 645 while (_first == NULL) { | |
| 646 // There is no work to be done right now. Wait. | |
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647 if (UseCodeCacheFlushing && (!CompileBroker::should_compile_new_jobs() || CodeCache::needs_flushing())) { |
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648 // During the emergency sweeping periods, wake up and sweep occasionally |
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649 bool timedout = lock()->wait(!Mutex::_no_safepoint_check_flag, NmethodSweepCheckInterval*1000); |
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650 if (timedout) { |
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651 MutexUnlocker ul(lock()); |
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652 // When otherwise not busy, run nmethod sweeping |
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653 NMethodSweeper::possibly_sweep(); |
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654 } |
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655 } else { |
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656 // During normal operation no need to wake up on timer |
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657 lock()->wait(); |
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658 } |
| 0 | 659 } |
| 1783 | 660 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
| 661 remove(task); | |
| 662 return task; | |
| 663 } | |
| 0 | 664 |
| 1783 | 665 void CompileQueue::remove(CompileTask* task) |
| 666 { | |
| 667 assert(lock()->owned_by_self(), "must own lock"); | |
| 668 if (task->prev() != NULL) { | |
| 669 task->prev()->set_next(task->next()); | |
| 670 } else { | |
| 671 // max is the first element | |
| 672 assert(task == _first, "Sanity"); | |
| 673 _first = task->next(); | |
| 0 | 674 } |
| 675 | |
| 1783 | 676 if (task->next() != NULL) { |
| 677 task->next()->set_prev(task->prev()); | |
| 678 } else { | |
| 679 // max is the last element | |
| 680 assert(task == _last, "Sanity"); | |
| 681 _last = task->prev(); | |
| 682 } | |
| 683 --_size; | |
| 0 | 684 } |
| 685 | |
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686 // methods in the compile queue need to be marked as used on the stack |
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687 // so that they don't get reclaimed by Redefine Classes |
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688 void CompileQueue::mark_on_stack() { |
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689 CompileTask* task = _first; |
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690 while (task != NULL) { |
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691 task->mark_on_stack(); |
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692 task = task->next(); |
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693 } |
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694 } |
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695 |
| 0 | 696 // ------------------------------------------------------------------ |
| 697 // CompileQueue::print | |
| 698 void CompileQueue::print() { | |
| 699 tty->print_cr("Contents of %s", name()); | |
| 700 tty->print_cr("----------------------"); | |
| 701 CompileTask* task = _first; | |
| 702 while (task != NULL) { | |
| 703 task->print_line(); | |
| 704 task = task->next(); | |
| 705 } | |
| 706 tty->print_cr("----------------------"); | |
| 707 } | |
| 708 | |
| 709 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
| 710 | |
| 711 _current_method[0] = '\0'; | |
| 712 _compile_type = CompileBroker::no_compile; | |
| 713 | |
| 714 if (UsePerfData) { | |
| 715 ResourceMark rm; | |
| 716 | |
| 717 // create the thread instance name space string - don't create an | |
| 718 // instance subspace if instance is -1 - keeps the adapterThread | |
| 719 // counters from having a ".0" namespace. | |
| 720 const char* thread_i = (instance == -1) ? thread_name : | |
| 721 PerfDataManager::name_space(thread_name, instance); | |
| 722 | |
| 723 | |
| 724 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
| 725 _perf_current_method = | |
| 726 PerfDataManager::create_string_variable(SUN_CI, name, | |
| 727 cmname_buffer_length, | |
| 728 _current_method, CHECK); | |
| 729 | |
| 730 name = PerfDataManager::counter_name(thread_i, "type"); | |
| 731 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
| 732 PerfData::U_None, | |
| 733 (jlong)_compile_type, | |
| 734 CHECK); | |
| 735 | |
| 736 name = PerfDataManager::counter_name(thread_i, "time"); | |
| 737 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
| 738 PerfData::U_Ticks, CHECK); | |
| 739 | |
| 740 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
| 741 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
| 742 PerfData::U_Events, CHECK); | |
| 743 } | |
| 744 } | |
| 745 | |
| 746 // ------------------------------------------------------------------ | |
| 747 // CompileBroker::compilation_init | |
| 748 // | |
| 749 // Initialize the Compilation object | |
| 750 void CompileBroker::compilation_init() { | |
| 751 _last_method_compiled[0] = '\0'; | |
| 752 | |
| 1970 | 753 #ifndef SHARK |
| 0 | 754 // Set the interface to the current compiler(s). |
| 1783 | 755 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
| 756 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
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757 |
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758 #ifdef GRAAL |
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759 GraalCompiler* graal = new GraalCompiler(); |
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760 #endif |
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761 |
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762 #if defined(GRAALVM) |
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763 _compilers[0] = graal; |
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764 c1_count = 0; |
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765 c2_count = 0; |
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766 #elif defined(COMPILER1) |
| 1783 | 767 if (c1_count > 0) { |
| 768 _compilers[0] = new Compiler(); | |
| 769 } | |
| 0 | 770 #endif // COMPILER1 |
| 771 | |
| 772 #ifdef COMPILER2 | |
| 1783 | 773 if (c2_count > 0) { |
| 774 _compilers[1] = new C2Compiler(); | |
| 775 } | |
| 0 | 776 #endif // COMPILER2 |
| 777 | |
| 1970 | 778 #else // SHARK |
| 779 int c1_count = 0; | |
| 780 int c2_count = 1; | |
| 781 | |
| 782 _compilers[1] = new SharkCompiler(); | |
| 783 #endif // SHARK | |
| 1692 | 784 |
| 0 | 785 // Initialize the CompileTask free list |
| 786 _task_free_list = NULL; | |
| 787 | |
| 788 // Start the CompilerThreads | |
| 1783 | 789 init_compiler_threads(c1_count, c2_count); |
| 0 | 790 // totalTime performance counter is always created as it is required |
| 791 // by the implementation of java.lang.management.CompilationMBean. | |
| 792 { | |
| 793 EXCEPTION_MARK; | |
| 794 _perf_total_compilation = | |
| 795 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
| 796 PerfData::U_Ticks, CHECK); | |
| 797 } | |
| 798 | |
| 799 | |
| 800 if (UsePerfData) { | |
| 801 | |
| 802 EXCEPTION_MARK; | |
| 803 | |
| 804 // create the jvmstat performance counters | |
| 805 _perf_osr_compilation = | |
| 806 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
| 807 PerfData::U_Ticks, CHECK); | |
| 808 | |
| 809 _perf_standard_compilation = | |
| 810 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
| 811 PerfData::U_Ticks, CHECK); | |
| 812 | |
| 813 _perf_total_bailout_count = | |
| 814 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
| 815 PerfData::U_Events, CHECK); | |
| 816 | |
| 817 _perf_total_invalidated_count = | |
| 818 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
| 819 PerfData::U_Events, CHECK); | |
| 820 | |
| 821 _perf_total_compile_count = | |
| 822 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
| 823 PerfData::U_Events, CHECK); | |
| 824 _perf_total_osr_compile_count = | |
| 825 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
| 826 PerfData::U_Events, CHECK); | |
| 827 | |
| 828 _perf_total_standard_compile_count = | |
| 829 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
| 830 PerfData::U_Events, CHECK); | |
| 831 | |
| 832 _perf_sum_osr_bytes_compiled = | |
| 833 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
| 834 PerfData::U_Bytes, CHECK); | |
| 835 | |
| 836 _perf_sum_standard_bytes_compiled = | |
| 837 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
| 838 PerfData::U_Bytes, CHECK); | |
| 839 | |
| 840 _perf_sum_nmethod_size = | |
| 841 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
| 842 PerfData::U_Bytes, CHECK); | |
| 843 | |
| 844 _perf_sum_nmethod_code_size = | |
| 845 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
| 846 PerfData::U_Bytes, CHECK); | |
| 847 | |
| 848 _perf_last_method = | |
| 849 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
| 850 CompilerCounters::cmname_buffer_length, | |
| 851 "", CHECK); | |
| 852 | |
| 853 _perf_last_failed_method = | |
| 854 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
| 855 CompilerCounters::cmname_buffer_length, | |
| 856 "", CHECK); | |
| 857 | |
| 858 _perf_last_invalidated_method = | |
| 859 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
| 860 CompilerCounters::cmname_buffer_length, | |
| 861 "", CHECK); | |
| 862 | |
| 863 _perf_last_compile_type = | |
| 864 PerfDataManager::create_variable(SUN_CI, "lastType", | |
| 865 PerfData::U_None, | |
| 866 (jlong)CompileBroker::no_compile, | |
| 867 CHECK); | |
| 868 | |
| 869 _perf_last_compile_size = | |
| 870 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
| 871 PerfData::U_Bytes, | |
| 872 (jlong)CompileBroker::no_compile, | |
| 873 CHECK); | |
| 874 | |
| 875 | |
| 876 _perf_last_failed_type = | |
| 877 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
| 878 PerfData::U_None, | |
| 879 (jlong)CompileBroker::no_compile, | |
| 880 CHECK); | |
| 881 | |
| 882 _perf_last_invalidated_type = | |
| 883 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
| 884 PerfData::U_None, | |
| 885 (jlong)CompileBroker::no_compile, | |
| 886 CHECK); | |
| 887 } | |
| 888 | |
| 889 _initialized = true; | |
| 890 } | |
| 891 | |
| 892 | |
| 893 | |
| 894 // ------------------------------------------------------------------ | |
| 895 // CompileBroker::make_compiler_thread | |
| 896 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS) { | |
| 897 CompilerThread* compiler_thread = NULL; | |
| 898 | |
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899 Klass* k = |
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900 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_Thread(), |
| 0 | 901 true, CHECK_0); |
| 902 instanceKlassHandle klass (THREAD, k); | |
| 903 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
| 904 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
| 905 | |
| 906 // Initialize thread_oop to put it into the system threadGroup | |
| 907 Handle thread_group (THREAD, Universe::system_thread_group()); | |
| 908 JavaValue result(T_VOID); | |
| 909 JavaCalls::call_special(&result, thread_oop, | |
| 910 klass, | |
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911 vmSymbols::object_initializer_name(), |
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912 vmSymbols::threadgroup_string_void_signature(), |
| 0 | 913 thread_group, |
| 914 string, | |
| 915 CHECK_0); | |
| 916 | |
| 917 { | |
| 918 MutexLocker mu(Threads_lock, THREAD); | |
| 919 compiler_thread = new CompilerThread(queue, counters); | |
| 920 // At this point the new CompilerThread data-races with this startup | |
| 921 // thread (which I believe is the primoridal thread and NOT the VM | |
| 922 // thread). This means Java bytecodes being executed at startup can | |
| 923 // queue compile jobs which will run at whatever default priority the | |
| 924 // newly created CompilerThread runs at. | |
| 925 | |
| 926 | |
| 927 // At this point it may be possible that no osthread was created for the | |
| 928 // JavaThread due to lack of memory. We would have to throw an exception | |
| 929 // in that case. However, since this must work and we do not allow | |
| 930 // exceptions anyway, check and abort if this fails. | |
| 931 | |
| 932 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
| 933 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
| 934 "unable to create new native thread"); | |
| 935 } | |
| 936 | |
| 937 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
| 938 | |
| 939 // Note that this only sets the JavaThread _priority field, which by | |
| 940 // definition is limited to Java priorities and not OS priorities. | |
| 941 // The os-priority is set in the CompilerThread startup code itself | |
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942 |
| 0 | 943 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); |
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944 |
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945 // Note that we cannot call os::set_priority because it expects Java |
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946 // priorities and we are *explicitly* using OS priorities so that it's |
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947 // possible to set the compiler thread priority higher than any Java |
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948 // thread. |
| 0 | 949 |
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950 int native_prio = CompilerThreadPriority; |
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951 if (native_prio == -1) { |
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952 if (UseCriticalCompilerThreadPriority) { |
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953 native_prio = os::java_to_os_priority[CriticalPriority]; |
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954 } else { |
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955 native_prio = os::java_to_os_priority[NearMaxPriority]; |
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956 } |
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957 } |
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958 os::set_native_priority(compiler_thread, native_prio); |
| 0 | 959 |
| 960 java_lang_Thread::set_daemon(thread_oop()); | |
| 961 | |
| 962 compiler_thread->set_threadObj(thread_oop()); | |
| 963 Threads::add(compiler_thread); | |
| 964 Thread::start(compiler_thread); | |
| 965 } | |
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966 |
| 0 | 967 // Let go of Threads_lock before yielding |
| 968 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
| 969 | |
| 970 return compiler_thread; | |
| 971 } | |
| 972 | |
| 973 | |
| 974 // ------------------------------------------------------------------ | |
| 975 // CompileBroker::init_compiler_threads | |
| 976 // | |
| 977 // Initialize the compilation queue | |
| 1783 | 978 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
| 0 | 979 EXCEPTION_MARK; |
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980 #if !defined(ZERO) && !defined(SHARK) && !defined(GRAALVM) |
| 1783 | 981 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
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982 #endif // !ZERO && !SHARK && !GRAALVM |
| 1783 | 983 if (c2_compiler_count > 0) { |
| 984 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
| 985 } | |
| 986 if (c1_compiler_count > 0) { | |
| 987 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
| 988 } | |
| 0 | 989 |
| 1783 | 990 int compiler_count = c1_compiler_count + c2_compiler_count; |
| 991 | |
| 0 | 992 _method_threads = |
| 6197 | 993 new (ResourceObj::C_HEAP, mtCompiler) GrowableArray<CompilerThread*>(compiler_count, true); |
| 0 | 994 |
| 995 char name_buffer[256]; | |
| 1783 | 996 for (int i = 0; i < c2_compiler_count; i++) { |
| 0 | 997 // Create a name for our thread. |
| 1783 | 998 sprintf(name_buffer, "C2 CompilerThread%d", i); |
| 0 | 999 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
| 1783 | 1000 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, CHECK); |
| 0 | 1001 _method_threads->append(new_thread); |
| 1002 } | |
| 1783 | 1003 |
| 1004 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
| 1005 // Create a name for our thread. | |
| 1006 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
| 1007 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
| 1008 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, CHECK); | |
| 1009 _method_threads->append(new_thread); | |
| 1010 } | |
| 1011 | |
| 0 | 1012 if (UsePerfData) { |
| 1013 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, | |
| 1014 compiler_count, CHECK); | |
| 1015 } | |
| 1016 } | |
| 1017 | |
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1018 |
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1019 // Set the methods on the stack as on_stack so that redefine classes doesn't |
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1020 // reclaim them |
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1021 void CompileBroker::mark_on_stack() { |
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1022 if (_c2_method_queue != NULL) { |
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1023 _c2_method_queue->mark_on_stack(); |
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1024 } |
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1025 if (_c1_method_queue != NULL) { |
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1026 _c1_method_queue->mark_on_stack(); |
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1027 } |
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1028 } |
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1029 |
| 0 | 1030 // ------------------------------------------------------------------ |
| 1031 // CompileBroker::is_idle | |
| 1032 bool CompileBroker::is_idle() { | |
| 1783 | 1033 if (_c2_method_queue != NULL && !_c2_method_queue->is_empty()) { |
| 1034 return false; | |
| 1035 } else if (_c1_method_queue != NULL && !_c1_method_queue->is_empty()) { | |
| 0 | 1036 return false; |
| 1037 } else { | |
| 1038 int num_threads = _method_threads->length(); | |
| 1039 for (int i=0; i<num_threads; i++) { | |
| 1040 if (_method_threads->at(i)->task() != NULL) { | |
| 1041 return false; | |
| 1042 } | |
| 1043 } | |
| 1044 } | |
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1045 // No pending or active compilations. |
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1046 return true; |
| 0 | 1047 } |
| 1048 | |
| 1049 | |
| 1050 // ------------------------------------------------------------------ | |
| 1051 // CompileBroker::compile_method | |
| 1052 // | |
| 1053 // Request compilation of a method. | |
| 1054 void CompileBroker::compile_method_base(methodHandle method, | |
| 1055 int osr_bci, | |
| 1056 int comp_level, | |
| 1057 methodHandle hot_method, | |
| 1058 int hot_count, | |
| 1059 const char* comment, | |
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1060 Thread* thread) { |
| 0 | 1061 // do nothing if compiler thread(s) is not available |
| 1062 if (!_initialized ) { | |
| 1063 return; | |
| 1064 } | |
| 1065 | |
| 1066 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
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1067 assert(method->method_holder()->oop_is_instance(), |
| 0 | 1068 "sanity check"); |
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1069 assert(!method->method_holder()->is_not_initialized(), |
| 0 | 1070 "method holder must be initialized"); |
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1071 assert(!method->is_method_handle_intrinsic(), "do not enqueue these guys"); |
| 0 | 1072 |
| 1073 if (CIPrintRequests) { | |
| 1074 tty->print("request: "); | |
| 1075 method->print_short_name(tty); | |
| 1076 if (osr_bci != InvocationEntryBci) { | |
| 1077 tty->print(" osr_bci: %d", osr_bci); | |
| 1078 } | |
| 1079 tty->print(" comment: %s count: %d", comment, hot_count); | |
| 1080 if (!hot_method.is_null()) { | |
| 1081 tty->print(" hot: "); | |
| 1082 if (hot_method() != method()) { | |
| 1083 hot_method->print_short_name(tty); | |
| 1084 } else { | |
| 1085 tty->print("yes"); | |
| 1086 } | |
| 1087 } | |
| 1088 tty->cr(); | |
| 1089 } | |
| 1090 | |
| 1091 // A request has been made for compilation. Before we do any | |
| 1092 // real work, check to see if the method has been compiled | |
| 1093 // in the meantime with a definitive result. | |
| 1094 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1095 return; | |
| 1096 } | |
| 1097 | |
| 2403 | 1098 #ifndef PRODUCT |
| 1099 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) { | |
| 1100 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) { | |
| 1101 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI. | |
| 1102 return; | |
| 1103 } | |
| 1104 } | |
| 1105 #endif | |
| 1783 | 1106 |
| 0 | 1107 // If this method is already in the compile queue, then |
| 1108 // we do not block the current thread. | |
| 1109 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1110 // We may want to decay our counter a bit here to prevent | |
| 1111 // multiple denied requests for compilation. This is an | |
| 1112 // open compilation policy issue. Note: The other possibility, | |
| 1113 // in the case that this is a blocking compile request, is to have | |
| 1114 // all subsequent blocking requesters wait for completion of | |
| 1115 // ongoing compiles. Note that in this case we'll need a protocol | |
| 1116 // for freeing the associated compile tasks. [Or we could have | |
| 1117 // a single static monitor on which all these waiters sleep.] | |
| 1118 return; | |
| 1119 } | |
| 1120 | |
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1121 // If the requesting thread is holding the pending list lock |
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1122 // then we just return. We can't risk blocking while holding |
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1123 // the pending list lock or a 3-way deadlock may occur |
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1124 // between the reference handler thread, a GC (instigated |
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1125 // by a compiler thread), and compiled method registration. |
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1126 if (InstanceRefKlass::owns_pending_list_lock(JavaThread::current())) { |
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1127 return; |
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1128 } |
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1129 #ifdef GRAALVM |
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1130 if (!JavaThread::current()->is_compiling()) { |
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1131 method->set_queued_for_compilation(); |
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1132 GraalCompiler::instance()->compile_method(method, osr_bci, is_compile_blocking(method, osr_bci)); |
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1133 } else { |
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1134 // Recursive compile request => ignore. |
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1135 } |
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1136 #else |
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1137 |
| 0 | 1138 // Outputs from the following MutexLocker block: |
| 1139 CompileTask* task = NULL; | |
| 1140 bool blocking = false; | |
| 1783 | 1141 CompileQueue* queue = compile_queue(comp_level); |
| 0 | 1142 |
| 1143 // Acquire our lock. | |
| 1144 { | |
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1145 MutexLocker locker(queue->lock(), thread); |
| 0 | 1146 |
| 1147 // Make sure the method has not slipped into the queues since | |
| 1148 // last we checked; note that those checks were "fast bail-outs". | |
| 1149 // Here we need to be more careful, see 14012000 below. | |
| 1150 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1151 return; | |
| 1152 } | |
| 1153 | |
| 1154 // We need to check again to see if the compilation has | |
| 1155 // completed. A previous compilation may have registered | |
| 1156 // some result. | |
| 1157 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1158 return; | |
| 1159 } | |
| 1160 | |
| 1161 // We now know that this compilation is not pending, complete, | |
| 1162 // or prohibited. Assign a compile_id to this compilation | |
| 1163 // and check to see if it is in our [Start..Stop) range. | |
| 1164 uint compile_id = assign_compile_id(method, osr_bci); | |
| 1165 if (compile_id == 0) { | |
| 1166 // The compilation falls outside the allowed range. | |
| 1167 return; | |
| 1168 } | |
| 1169 | |
| 1170 // Should this thread wait for completion of the compile? | |
| 1171 blocking = is_compile_blocking(method, osr_bci); | |
| 1172 | |
| 1173 // We will enter the compilation in the queue. | |
| 1174 // 14012000: Note that this sets the queued_for_compile bits in | |
| 1175 // the target method. We can now reason that a method cannot be | |
| 1176 // queued for compilation more than once, as follows: | |
| 1177 // Before a thread queues a task for compilation, it first acquires | |
| 1178 // the compile queue lock, then checks if the method's queued bits | |
| 1179 // are set or it has already been compiled. Thus there can not be two | |
| 1180 // instances of a compilation task for the same method on the | |
| 1181 // compilation queue. Consider now the case where the compilation | |
| 1182 // thread has already removed a task for that method from the queue | |
| 1183 // and is in the midst of compiling it. In this case, the | |
| 1184 // queued_for_compile bits must be set in the method (and these | |
| 1185 // will be visible to the current thread, since the bits were set | |
| 1186 // under protection of the compile queue lock, which we hold now. | |
| 1187 // When the compilation completes, the compiler thread first sets | |
| 1188 // the compilation result and then clears the queued_for_compile | |
| 1189 // bits. Neither of these actions are protected by a barrier (or done | |
| 1190 // under the protection of a lock), so the only guarantee we have | |
| 1191 // (on machines with TSO (Total Store Order)) is that these values | |
| 1192 // will update in that order. As a result, the only combinations of | |
| 1193 // these bits that the current thread will see are, in temporal order: | |
| 1194 // <RESULT, QUEUE> : | |
| 1195 // <0, 1> : in compile queue, but not yet compiled | |
| 1196 // <1, 1> : compiled but queue bit not cleared | |
| 1197 // <1, 0> : compiled and queue bit cleared | |
| 1198 // Because we first check the queue bits then check the result bits, | |
| 1199 // we are assured that we cannot introduce a duplicate task. | |
| 1200 // Note that if we did the tests in the reverse order (i.e. check | |
| 1201 // result then check queued bit), we could get the result bit before | |
| 1202 // the compilation completed, and the queue bit after the compilation | |
| 1203 // completed, and end up introducing a "duplicate" (redundant) task. | |
| 1204 // In that case, the compiler thread should first check if a method | |
| 1205 // has already been compiled before trying to compile it. | |
| 1206 // NOTE: in the event that there are multiple compiler threads and | |
| 1207 // there is de-optimization/recompilation, things will get hairy, | |
| 1208 // and in that case it's best to protect both the testing (here) of | |
| 1209 // these bits, and their updating (here and elsewhere) under a | |
| 1210 // common lock. | |
| 1783 | 1211 task = create_compile_task(queue, |
| 0 | 1212 compile_id, method, |
| 1213 osr_bci, comp_level, | |
| 1214 hot_method, hot_count, comment, | |
| 1215 blocking); | |
| 1216 } | |
| 1217 | |
| 1218 if (blocking) { | |
| 1219 wait_for_completion(task); | |
| 1220 } | |
|
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1221 #endif |
| 0 | 1222 } |
| 1223 | |
| 1224 | |
| 1225 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
| 1783 | 1226 int comp_level, |
| 0 | 1227 methodHandle hot_method, int hot_count, |
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1228 const char* comment, Thread* THREAD) { |
| 0 | 1229 // make sure arguments make sense |
|
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1230 assert(method->method_holder()->oop_is_instance(), "not an instance method"); |
| 0 | 1231 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); |
| 1232 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
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1233 assert(!method->method_holder()->is_not_initialized(), "method holder must be initialized"); |
| 0 | 1234 |
| 1783 | 1235 if (!TieredCompilation) { |
| 1236 comp_level = CompLevel_highest_tier; | |
| 0 | 1237 } |
| 1238 | |
| 1239 // return quickly if possible | |
| 1240 | |
| 1241 // lock, make sure that the compilation | |
| 1242 // isn't prohibited in a straightforward way. | |
| 1243 | |
| 1244 if (compiler(comp_level) == NULL || compilation_is_prohibited(method, osr_bci, comp_level)) { | |
| 1245 return NULL; | |
| 1246 } | |
| 1247 | |
| 1248 if (osr_bci == InvocationEntryBci) { | |
| 1249 // standard compilation | |
| 1250 nmethod* method_code = method->code(); | |
| 1783 | 1251 if (method_code != NULL) { |
| 1252 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1253 return method_code; | |
| 1254 } | |
| 0 | 1255 } |
| 1256 if (method->is_not_compilable(comp_level)) return NULL; | |
| 1202 | 1257 |
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1258 if (UseCodeCacheFlushing) { |
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1259 nmethod* saved = CodeCache::find_and_remove_saved_code(method()); |
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1260 if (saved != NULL) { |
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1261 method->set_code(method, saved); |
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1262 return saved; |
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1263 } |
| 1202 | 1264 } |
| 1265 | |
| 0 | 1266 } else { |
| 1267 // osr compilation | |
| 1268 #ifndef TIERED | |
| 1269 // seems like an assert of dubious value | |
| 1783 | 1270 assert(comp_level == CompLevel_highest_tier, |
| 0 | 1271 "all OSR compiles are assumed to be at a single compilation lavel"); |
| 1272 #endif // TIERED | |
| 1783 | 1273 // We accept a higher level osr method |
| 1274 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1275 if (nm != NULL) return nm; |
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1276 if (method->is_not_osr_compilable(comp_level)) return NULL; |
| 0 | 1277 } |
| 1278 | |
| 1279 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
| 1280 // some prerequisites that are compiler specific | |
| 2447 | 1281 if (compiler(comp_level)->is_c2() || compiler(comp_level)->is_shark()) { |
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1282 method->constants()->resolve_string_constants(CHECK_AND_CLEAR_NULL); |
| 0 | 1283 // Resolve all classes seen in the signature of the method |
| 1284 // we are compiling. | |
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1285 Method::load_signature_classes(method, CHECK_AND_CLEAR_NULL); |
| 0 | 1286 } |
| 1287 | |
| 1288 // If the method is native, do the lookup in the thread requesting | |
| 1289 // the compilation. Native lookups can load code, which is not | |
| 1290 // permitted during compilation. | |
| 1291 // | |
| 1292 // Note: A native method implies non-osr compilation which is | |
| 1293 // checked with an assertion at the entry of this method. | |
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1294 if (method->is_native() && !method->is_method_handle_intrinsic()) { |
| 0 | 1295 bool in_base_library; |
| 1296 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
| 1297 if (HAS_PENDING_EXCEPTION) { | |
| 1298 // In case of an exception looking up the method, we just forget | |
| 1299 // about it. The interpreter will kick-in and throw the exception. | |
| 1300 method->set_not_compilable(); // implies is_not_osr_compilable() | |
| 1301 CLEAR_PENDING_EXCEPTION; | |
| 1302 return NULL; | |
| 1303 } | |
| 1304 assert(method->has_native_function(), "must have native code by now"); | |
| 1305 } | |
| 1306 | |
| 1307 // RedefineClasses() has replaced this method; just return | |
| 1308 if (method->is_old()) { | |
| 1309 return NULL; | |
| 1310 } | |
| 1311 | |
| 1312 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
| 1313 // a lock the compiling thread can not acquire. Prefetch it here. | |
| 1314 if (JvmtiExport::should_post_compiled_method_load()) { | |
| 1315 method->jmethod_id(); | |
| 1316 } | |
| 1317 | |
| 1202 | 1318 // If the compiler is shut off due to code cache flushing or otherwise, |
| 1319 // fail out now so blocking compiles dont hang the java thread | |
| 1320 if (!should_compile_new_jobs() || (UseCodeCacheFlushing && CodeCache::needs_flushing())) { | |
| 1783 | 1321 CompilationPolicy::policy()->delay_compilation(method()); |
| 1202 | 1322 return NULL; |
| 1323 } | |
| 1324 | |
| 0 | 1325 // do the compilation |
| 1326 if (method->is_native()) { | |
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1327 if (!PreferInterpreterNativeStubs || method->is_method_handle_intrinsic()) { |
|
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1328 // Acquire our lock. |
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1329 int compile_id; |
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1330 { |
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1331 MutexLocker locker(MethodCompileQueue_lock, THREAD); |
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1332 compile_id = assign_compile_id(method, standard_entry_bci); |
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1333 } |
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1334 (void) AdapterHandlerLibrary::create_native_wrapper(method, compile_id); |
| 0 | 1335 } else { |
| 1336 return NULL; | |
| 1337 } | |
| 1338 } else { | |
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1339 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, THREAD); |
| 0 | 1340 } |
| 1341 | |
| 1342 // return requested nmethod | |
| 1783 | 1343 // We accept a higher level osr method |
| 1344 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1345 } |
| 1346 | |
| 1347 | |
| 1348 // ------------------------------------------------------------------ | |
| 1349 // CompileBroker::compilation_is_complete | |
| 1350 // | |
| 1351 // See if compilation of this method is already complete. | |
| 1352 bool CompileBroker::compilation_is_complete(methodHandle method, | |
| 1353 int osr_bci, | |
| 1354 int comp_level) { | |
| 1355 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1356 if (is_osr) { | |
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1357 if (method->is_not_osr_compilable(comp_level)) { |
| 0 | 1358 return true; |
| 1359 } else { | |
| 1783 | 1360 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
| 0 | 1361 return (result != NULL); |
| 1362 } | |
| 1363 } else { | |
| 1364 if (method->is_not_compilable(comp_level)) { | |
| 1365 return true; | |
| 1366 } else { | |
| 1367 nmethod* result = method->code(); | |
| 1368 if (result == NULL) return false; | |
| 1783 | 1369 return comp_level == result->comp_level(); |
| 0 | 1370 } |
| 1371 } | |
| 1372 } | |
| 1373 | |
| 1374 | |
| 1375 // ------------------------------------------------------------------ | |
| 1376 // CompileBroker::compilation_is_in_queue | |
| 1377 // | |
| 1378 // See if this compilation is already requested. | |
| 1379 // | |
| 1380 // Implementation note: there is only a single "is in queue" bit | |
| 1381 // for each method. This means that the check below is overly | |
| 1382 // conservative in the sense that an osr compilation in the queue | |
| 1383 // will block a normal compilation from entering the queue (and vice | |
| 1384 // versa). This can be remedied by a full queue search to disambiguate | |
| 1385 // cases. If it is deemed profitible, this may be done. | |
| 1386 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
| 1783 | 1387 int osr_bci) { |
| 0 | 1388 return method->queued_for_compilation(); |
| 1389 } | |
| 1390 | |
| 1391 // ------------------------------------------------------------------ | |
| 1392 // CompileBroker::compilation_is_prohibited | |
| 1393 // | |
| 1394 // See if this compilation is not allowed. | |
| 1395 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
| 1396 bool is_native = method->is_native(); | |
| 1397 // Some compilers may not support the compilation of natives. | |
| 1398 if (is_native && | |
| 1399 (!CICompileNatives || !compiler(comp_level)->supports_native())) { | |
| 1783 | 1400 method->set_not_compilable_quietly(comp_level); |
| 0 | 1401 return true; |
| 1402 } | |
| 1403 | |
| 1404 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1405 // Some compilers may not support on stack replacement. | |
| 1406 if (is_osr && | |
| 1407 (!CICompileOSR || !compiler(comp_level)->supports_osr())) { | |
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1408 method->set_not_osr_compilable(comp_level); |
| 0 | 1409 return true; |
| 1410 } | |
| 1411 | |
| 1412 // The method may be explicitly excluded by the user. | |
| 1413 bool quietly; | |
| 1414 if (CompilerOracle::should_exclude(method, quietly)) { | |
| 1415 if (!quietly) { | |
| 1416 // This does not happen quietly... | |
| 1417 ResourceMark rm; | |
| 1418 tty->print("### Excluding %s:%s", | |
| 1419 method->is_native() ? "generation of native wrapper" : "compile", | |
| 1420 (method->is_static() ? " static" : "")); | |
| 1421 method->print_short_name(tty); | |
| 1422 tty->cr(); | |
| 1423 } | |
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1424 method->set_not_compilable_quietly(); |
| 0 | 1425 } |
| 1426 | |
| 1427 return false; | |
| 1428 } | |
| 1429 | |
| 1430 | |
| 1431 // ------------------------------------------------------------------ | |
| 1432 // CompileBroker::assign_compile_id | |
| 1433 // | |
| 1434 // Assign a serialized id number to this compilation request. If the | |
| 1435 // number falls out of the allowed range, return a 0. OSR | |
| 1436 // compilations may be numbered separately from regular compilations | |
| 1437 // if certain debugging flags are used. | |
| 1438 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
| 1783 | 1439 assert(MethodCompileQueue_lock->owner() == Thread::current(), |
| 0 | 1440 "must hold the compilation queue lock"); |
| 1441 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1442 uint id; | |
| 1443 if (CICountOSR && is_osr) { | |
| 1444 id = ++_osr_compilation_id; | |
| 1445 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
| 1446 return id; | |
| 1447 } | |
| 1448 } else { | |
| 1449 id = ++_compilation_id; | |
| 1450 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
| 1451 return id; | |
| 1452 } | |
| 1453 } | |
| 1454 | |
| 1455 // Method was not in the appropriate compilation range. | |
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1456 method->set_not_compilable_quietly(); |
| 0 | 1457 return 0; |
| 1458 } | |
| 1459 | |
| 1460 | |
| 1461 // ------------------------------------------------------------------ | |
| 1462 // CompileBroker::is_compile_blocking | |
| 1463 // | |
| 1464 // Should the current thread be blocked until this compilation request | |
| 1465 // has been fulfilled? | |
| 1466 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
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1467 assert(!InstanceRefKlass::owns_pending_list_lock(JavaThread::current()), "possible deadlock"); |
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1468 return !BackgroundCompilation; |
| 0 | 1469 } |
| 1470 | |
| 1471 | |
| 1472 // ------------------------------------------------------------------ | |
| 1473 // CompileBroker::preload_classes | |
| 1474 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
| 1475 // Move this code over from c1_Compiler.cpp | |
| 1476 ShouldNotReachHere(); | |
| 1477 } | |
| 1478 | |
| 1479 | |
| 1480 // ------------------------------------------------------------------ | |
| 1481 // CompileBroker::create_compile_task | |
| 1482 // | |
| 1483 // Create a CompileTask object representing the current request for | |
| 1484 // compilation. Add this task to the queue. | |
| 1485 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
| 1486 int compile_id, | |
| 1487 methodHandle method, | |
| 1488 int osr_bci, | |
| 1489 int comp_level, | |
| 1490 methodHandle hot_method, | |
| 1491 int hot_count, | |
| 1492 const char* comment, | |
| 1493 bool blocking) { | |
| 1494 CompileTask* new_task = allocate_task(); | |
| 1495 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
| 1496 hot_method, hot_count, comment, | |
| 1497 blocking); | |
| 1498 queue->add(new_task); | |
| 1499 return new_task; | |
| 1500 } | |
| 1501 | |
| 1502 | |
| 1503 // ------------------------------------------------------------------ | |
| 1504 // CompileBroker::allocate_task | |
| 1505 // | |
| 1506 // Allocate a CompileTask, from the free list if possible. | |
| 1507 CompileTask* CompileBroker::allocate_task() { | |
| 1508 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1509 CompileTask* task = NULL; | |
| 1510 if (_task_free_list != NULL) { | |
| 1511 task = _task_free_list; | |
| 1512 _task_free_list = task->next(); | |
| 1513 task->set_next(NULL); | |
| 1514 } else { | |
| 1515 task = new CompileTask(); | |
| 1516 task->set_next(NULL); | |
| 1517 } | |
| 1518 return task; | |
| 1519 } | |
| 1520 | |
| 1521 | |
| 1522 // ------------------------------------------------------------------ | |
| 1523 // CompileBroker::free_task | |
| 1524 // | |
| 1525 // Add a task to the free list. | |
| 1526 void CompileBroker::free_task(CompileTask* task) { | |
| 1527 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1528 task->free(); | |
| 1529 task->set_next(_task_free_list); | |
| 1530 _task_free_list = task; | |
| 1531 } | |
| 1532 | |
| 1533 | |
| 1534 // ------------------------------------------------------------------ | |
| 1535 // CompileBroker::wait_for_completion | |
| 1536 // | |
| 1537 // Wait for the given method CompileTask to complete. | |
| 1538 void CompileBroker::wait_for_completion(CompileTask* task) { | |
| 1539 if (CIPrintCompileQueue) { | |
| 1540 tty->print_cr("BLOCKING FOR COMPILE"); | |
| 1541 } | |
| 1542 | |
| 1543 assert(task->is_blocking(), "can only wait on blocking task"); | |
| 1544 | |
| 1545 JavaThread *thread = JavaThread::current(); | |
| 1546 thread->set_blocked_on_compilation(true); | |
| 1547 | |
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1548 methodHandle method(thread, task->method()); |
| 0 | 1549 { |
| 1550 MutexLocker waiter(task->lock(), thread); | |
| 1551 | |
| 1552 while (!task->is_complete()) | |
| 1553 task->lock()->wait(); | |
| 1554 } | |
| 1555 // It is harmless to check this status without the lock, because | |
| 1556 // completion is a stable property (until the task object is recycled). | |
| 1557 assert(task->is_complete(), "Compilation should have completed"); | |
| 1558 assert(task->code_handle() == NULL, "must be reset"); | |
| 1559 | |
| 1560 thread->set_blocked_on_compilation(false); | |
| 1561 | |
| 1562 // By convention, the waiter is responsible for recycling a | |
| 1563 // blocking CompileTask. Since there is only one waiter ever | |
| 1564 // waiting on a CompileTask, we know that no one else will | |
| 1565 // be using this CompileTask; we can free it. | |
| 1566 free_task(task); | |
| 1567 } | |
| 1568 | |
| 1569 // ------------------------------------------------------------------ | |
| 1570 // CompileBroker::compiler_thread_loop | |
| 1571 // | |
| 1572 // The main loop run by a CompilerThread. | |
| 1573 void CompileBroker::compiler_thread_loop() { | |
| 1574 CompilerThread* thread = CompilerThread::current(); | |
| 1575 CompileQueue* queue = thread->queue(); | |
| 1576 | |
| 1577 // For the thread that initializes the ciObjectFactory | |
| 1578 // this resource mark holds all the shared objects | |
| 1579 ResourceMark rm; | |
| 1580 | |
| 1581 // First thread to get here will initialize the compiler interface | |
| 1582 | |
| 1583 if (!ciObjectFactory::is_initialized()) { | |
| 1584 ASSERT_IN_VM; | |
| 1585 MutexLocker only_one (CompileThread_lock, thread); | |
| 1586 if (!ciObjectFactory::is_initialized()) { | |
| 1587 ciObjectFactory::initialize(); | |
| 1588 } | |
| 1589 } | |
| 1590 | |
| 1591 // Open a log. | |
| 1592 if (LogCompilation) { | |
| 1593 init_compiler_thread_log(); | |
| 1594 } | |
| 1595 CompileLog* log = thread->log(); | |
| 1596 if (log != NULL) { | |
| 6843 | 1597 log->begin_elem("start_compile_thread name='%s' thread='" UINTX_FORMAT "' process='%d'", |
| 1598 thread->name(), | |
| 0 | 1599 os::current_thread_id(), |
| 1600 os::current_process_id()); | |
| 1601 log->stamp(); | |
| 1602 log->end_elem(); | |
| 1603 } | |
| 1604 | |
| 1605 while (true) { | |
| 1606 { | |
| 1607 // We need this HandleMark to avoid leaking VM handles. | |
| 1608 HandleMark hm(thread); | |
| 1202 | 1609 |
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1610 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) { |
| 1202 | 1611 // the code cache is really full |
| 1612 handle_full_code_cache(); | |
| 1613 } else if (UseCodeCacheFlushing && CodeCache::needs_flushing()) { | |
| 1614 // Attempt to start cleaning the code cache while there is still a little headroom | |
| 1615 NMethodSweeper::handle_full_code_cache(false); | |
| 0 | 1616 } |
| 1617 | |
| 1618 CompileTask* task = queue->get(); | |
| 1619 | |
| 1620 // Give compiler threads an extra quanta. They tend to be bursty and | |
| 1621 // this helps the compiler to finish up the job. | |
| 1622 if( CompilerThreadHintNoPreempt ) | |
| 1623 os::hint_no_preempt(); | |
| 1624 | |
| 1625 // trace per thread time and compile statistics | |
| 1626 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); | |
| 1627 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); | |
| 1628 | |
| 1629 // Assign the task to the current thread. Mark this compilation | |
| 1630 // thread as active for the profiler. | |
| 1631 CompileTaskWrapper ctw(task); | |
| 1632 nmethodLocker result_handle; // (handle for the nmethod produced by this task) | |
| 1633 task->set_code_handle(&result_handle); | |
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1634 methodHandle method(thread, task->method()); |
| 0 | 1635 |
| 1636 // Never compile a method if breakpoints are present in it | |
| 1637 if (method()->number_of_breakpoints() == 0) { | |
| 1638 // Compile the method. | |
| 1202 | 1639 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
| 0 | 1640 #ifdef COMPILER1 |
| 1641 // Allow repeating compilations for the purpose of benchmarking | |
| 1642 // compile speed. This is not useful for customers. | |
| 1643 if (CompilationRepeat != 0) { | |
| 1644 int compile_count = CompilationRepeat; | |
| 1645 while (compile_count > 0) { | |
| 1646 invoke_compiler_on_method(task); | |
| 1647 nmethod* nm = method->code(); | |
| 1648 if (nm != NULL) { | |
| 1649 nm->make_zombie(); | |
| 1650 method->clear_code(); | |
| 1651 } | |
| 1652 compile_count--; | |
| 1653 } | |
| 1654 } | |
| 1655 #endif /* COMPILER1 */ | |
| 1656 invoke_compiler_on_method(task); | |
| 1657 } else { | |
| 1658 // After compilation is disabled, remove remaining methods from queue | |
| 1659 method->clear_queued_for_compilation(); | |
| 1660 } | |
| 1661 } | |
| 1662 } | |
| 1663 } | |
| 1664 } | |
| 1665 | |
| 1666 | |
| 1667 // ------------------------------------------------------------------ | |
| 1668 // CompileBroker::init_compiler_thread_log | |
| 1669 // | |
| 1670 // Set up state required by +LogCompilation. | |
| 1671 void CompileBroker::init_compiler_thread_log() { | |
| 1672 CompilerThread* thread = CompilerThread::current(); | |
| 1673 char fileBuf[4*K]; | |
| 1674 FILE* fp = NULL; | |
| 1675 char* file = NULL; | |
| 1676 intx thread_id = os::current_thread_id(); | |
| 1677 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
| 1678 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
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1679 if (dir == NULL) { |
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1680 jio_snprintf(fileBuf, sizeof(fileBuf), "hs_c" UINTX_FORMAT "_pid%u.log", |
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1681 thread_id, os::current_process_id()); |
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1682 } else { |
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1683 jio_snprintf(fileBuf, sizeof(fileBuf), |
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1684 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
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1685 os::file_separator(), thread_id, os::current_process_id()); |
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1686 } |
| 0 | 1687 fp = fopen(fileBuf, "at"); |
| 1688 if (fp != NULL) { | |
| 6197 | 1689 file = NEW_C_HEAP_ARRAY(char, strlen(fileBuf)+1, mtCompiler); |
| 0 | 1690 strcpy(file, fileBuf); |
| 1691 break; | |
| 1692 } | |
| 1693 } | |
| 1694 if (fp == NULL) { | |
| 1695 warning("Cannot open log file: %s", fileBuf); | |
| 1696 } else { | |
| 1697 if (LogCompilation && Verbose) | |
| 1698 tty->print_cr("Opening compilation log %s", file); | |
| 6197 | 1699 CompileLog* log = new(ResourceObj::C_HEAP, mtCompiler) CompileLog(file, fp, thread_id); |
| 0 | 1700 thread->init_log(log); |
| 1701 | |
| 1702 if (xtty != NULL) { | |
| 1703 ttyLocker ttyl; | |
| 1704 | |
| 1705 // Record any per thread log files | |
| 1706 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file); | |
| 1707 } | |
| 1708 } | |
| 1709 } | |
| 1710 | |
| 1711 // ------------------------------------------------------------------ | |
| 1712 // CompileBroker::set_should_block | |
| 1713 // | |
| 1714 // Set _should_block. | |
| 1715 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
| 1716 void CompileBroker::set_should_block() { | |
| 1717 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
| 1718 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
| 1719 #ifndef PRODUCT | |
| 1720 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1721 tty->print_cr("notifying compiler thread pool to block"); | |
| 1722 #endif | |
| 1723 _should_block = true; | |
| 1724 } | |
| 1725 | |
| 1726 // ------------------------------------------------------------------ | |
| 1727 // CompileBroker::maybe_block | |
| 1728 // | |
| 1729 // Call this from the compiler at convenient points, to poll for _should_block. | |
| 1730 void CompileBroker::maybe_block() { | |
| 1731 if (_should_block) { | |
| 1732 #ifndef PRODUCT | |
| 1733 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1734 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
| 1735 #endif | |
| 1736 ThreadInVMfromNative tivfn(JavaThread::current()); | |
| 1737 } | |
| 1738 } | |
| 1739 | |
| 1740 // ------------------------------------------------------------------ | |
| 1741 // CompileBroker::invoke_compiler_on_method | |
| 1742 // | |
| 1743 // Compile a method. | |
| 1744 // | |
| 1745 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
| 1746 if (PrintCompilation) { | |
| 1747 ResourceMark rm; | |
| 1748 task->print_line(); | |
| 1749 } | |
| 1750 elapsedTimer time; | |
| 1751 | |
| 1752 CompilerThread* thread = CompilerThread::current(); | |
| 1753 ResourceMark rm(thread); | |
| 1754 | |
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1755 if (LogEvents) { |
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1756 _compilation_log->log_compile(thread, task); |
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1757 } |
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1758 |
| 0 | 1759 // Common flags. |
| 1760 uint compile_id = task->compile_id(); | |
| 1761 int osr_bci = task->osr_bci(); | |
| 1762 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1763 bool should_log = (thread->log() != NULL); | |
| 1764 bool should_break = false; | |
| 1765 { | |
| 1766 // create the handle inside it's own block so it can't | |
| 1767 // accidentally be referenced once the thread transitions to | |
| 1768 // native. The NoHandleMark before the transition should catch | |
| 1769 // any cases where this occurs in the future. | |
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1770 methodHandle method(thread, task->method()); |
| 0 | 1771 should_break = check_break_at(method, compile_id, is_osr); |
| 1772 if (should_log && !CompilerOracle::should_log(method)) { | |
| 1773 should_log = false; | |
| 1774 } | |
| 1775 assert(!method->is_native(), "no longer compile natives"); | |
| 1776 | |
| 1777 // Save information about this method in case of failure. | |
| 1778 set_last_compile(thread, method, is_osr, task->comp_level()); | |
| 1779 | |
| 1780 DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task->comp_level()), method); | |
| 1781 } | |
| 1782 | |
| 1783 // Allocate a new set of JNI handles. | |
| 1784 push_jni_handle_block(); | |
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1785 Method* target_handle = task->method(); |
| 0 | 1786 int compilable = ciEnv::MethodCompilable; |
| 1787 { | |
| 1788 int system_dictionary_modification_counter; | |
| 1789 { | |
| 1790 MutexLocker locker(Compile_lock, thread); | |
| 1791 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
| 1792 } | |
| 1793 | |
| 1794 NoHandleMark nhm; | |
| 1795 ThreadToNativeFromVM ttn(thread); | |
| 1796 | |
| 1797 ciEnv ci_env(task, system_dictionary_modification_counter); | |
| 1798 if (should_break) { | |
| 1799 ci_env.set_break_at_compile(true); | |
| 1800 } | |
| 1801 if (should_log) { | |
| 1802 ci_env.set_log(thread->log()); | |
| 1803 } | |
| 1804 assert(thread->env() == &ci_env, "set by ci_env"); | |
| 1805 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
| 1806 | |
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1807 // Cache Jvmti state |
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1808 ci_env.cache_jvmti_state(); |
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1809 |
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1810 // Cache DTrace flags |
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1811 ci_env.cache_dtrace_flags(); |
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1812 |
| 0 | 1813 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
| 1814 | |
| 1815 TraceTime t1("compilation", &time); | |
| 1816 | |
| 1817 compiler(task->comp_level())->compile_method(&ci_env, target, osr_bci); | |
| 1818 | |
| 1819 if (!ci_env.failing() && task->code() == NULL) { | |
| 1820 //assert(false, "compiler should always document failure"); | |
| 1821 // The compiler elected, without comment, not to register a result. | |
| 1822 // Do not attempt further compilations of this method. | |
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1823 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
| 0 | 1824 } |
| 1825 | |
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1826 // Copy this bit to the enclosing block: |
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1827 compilable = ci_env.compilable(); |
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1828 |
| 0 | 1829 if (ci_env.failing()) { |
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1830 const char* retry_message = ci_env.retry_message(); |
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1831 if (_compilation_log != NULL) { |
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1832 _compilation_log->log_failure(thread, task, ci_env.failure_reason(), retry_message); |
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1833 } |
| 0 | 1834 if (PrintCompilation) { |
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1835 FormatBufferResource msg = retry_message != NULL ? |
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1836 err_msg_res("COMPILE SKIPPED: %s (%s)", ci_env.failure_reason(), retry_message) : |
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1837 err_msg_res("COMPILE SKIPPED: %s", ci_env.failure_reason()); |
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1838 task->print_compilation(tty, msg); |
| 0 | 1839 } |
| 1840 } else { | |
| 1841 task->mark_success(); | |
| 1842 task->set_num_inlined_bytecodes(ci_env.num_inlined_bytecodes()); | |
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1843 if (_compilation_log != NULL) { |
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1844 nmethod* code = task->code(); |
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1845 if (code != NULL) { |
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1846 _compilation_log->log_nmethod(thread, code); |
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1847 } |
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1848 } |
| 0 | 1849 } |
| 1850 } | |
| 1851 pop_jni_handle_block(); | |
| 1852 | |
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1853 methodHandle method(thread, task->method()); |
| 0 | 1854 |
| 1855 DTRACE_METHOD_COMPILE_END_PROBE(compiler(task->comp_level()), method, task->is_success()); | |
| 1856 | |
| 1857 collect_statistics(thread, time, task); | |
| 1858 | |
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1859 if (PrintCompilation && PrintCompilation2) { |
| 4047 | 1860 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); // print timestamp |
| 1861 tty->print("%4d ", compile_id); // print compilation number | |
| 1862 tty->print("%s ", (is_osr ? "%" : " ")); | |
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1863 int code_size = (task->code() == NULL) ? 0 : task->code()->total_size(); |
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1864 tty->print_cr("size: %d time: %d inlined: %d bytes", code_size, (int)time.milliseconds(), task->num_inlined_bytecodes()); |
| 4047 | 1865 } |
| 1866 | |
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1867 // Disable compilation, if required. |
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1868 switch (compilable) { |
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1869 case ciEnv::MethodCompilable_never: |
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1870 if (is_osr) |
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1871 method->set_not_osr_compilable_quietly(); |
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1872 else |
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1873 method->set_not_compilable_quietly(); |
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1874 break; |
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1875 case ciEnv::MethodCompilable_not_at_tier: |
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1876 if (is_osr) |
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1877 method->set_not_osr_compilable_quietly(task->comp_level()); |
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1878 else |
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1879 method->set_not_compilable_quietly(task->comp_level()); |
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1880 break; |
| 0 | 1881 } |
| 1882 | |
| 1883 // Note that the queued_for_compilation bits are cleared without | |
| 1884 // protection of a mutex. [They were set by the requester thread, | |
| 1885 // when adding the task to the complie queue -- at which time the | |
| 1886 // compile queue lock was held. Subsequently, we acquired the compile | |
| 1887 // queue lock to get this task off the compile queue; thus (to belabour | |
| 1888 // the point somewhat) our clearing of the bits must be occurring | |
| 1889 // only after the setting of the bits. See also 14012000 above. | |
| 1890 method->clear_queued_for_compilation(); | |
| 1891 | |
| 1892 #ifdef ASSERT | |
| 1893 if (CollectedHeap::fired_fake_oom()) { | |
| 1894 // The current compile received a fake OOM during compilation so | |
| 1895 // go ahead and exit the VM since the test apparently succeeded | |
| 1896 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
| 1897 vm_exit(0); | |
| 1898 } | |
| 1899 #endif | |
| 1900 } | |
| 1901 | |
| 1902 // ------------------------------------------------------------------ | |
| 1202 | 1903 // CompileBroker::handle_full_code_cache |
| 1904 // | |
| 1905 // The CodeCache is full. Print out warning and disable compilation or | |
| 1906 // try code cache cleaning so compilation can continue later. | |
| 1907 void CompileBroker::handle_full_code_cache() { | |
| 1908 UseInterpreter = true; | |
| 1909 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
|
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1910 if (xtty != NULL) { |
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1911 stringStream s; |
|
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1912 // Dump code cache state into a buffer before locking the tty, |
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1913 // because log_state() will use locks causing lock conflicts. |
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1914 CodeCache::log_state(&s); |
|
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1915 // Lock to prevent tearing |
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1916 ttyLocker ttyl; |
|
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1917 xtty->begin_elem("code_cache_full"); |
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1918 xtty->print(s.as_string()); |
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1919 xtty->stamp(); |
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1920 xtty->end_elem(); |
| 1202 | 1921 } |
|
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1922 warning("CodeCache is full. Compiler has been disabled."); |
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1923 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
|
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1924 CodeCache::print_bounds(tty); |
|
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1925 #ifndef PRODUCT |
| 1202 | 1926 if (CompileTheWorld || ExitOnFullCodeCache) { |
| 1927 before_exit(JavaThread::current()); | |
| 1928 exit_globals(); // will delete tty | |
| 1929 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
| 1930 } | |
|
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1931 #endif |
| 1202 | 1932 if (UseCodeCacheFlushing) { |
| 1933 NMethodSweeper::handle_full_code_cache(true); | |
| 1934 } else { | |
| 1935 UseCompiler = false; | |
| 1936 AlwaysCompileLoopMethods = false; | |
| 1937 } | |
| 1938 } | |
| 1939 } | |
| 1940 | |
| 1941 // ------------------------------------------------------------------ | |
| 0 | 1942 // CompileBroker::set_last_compile |
| 1943 // | |
| 1944 // Record this compilation for debugging purposes. | |
| 1945 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
| 1946 ResourceMark rm; | |
| 1947 char* method_name = method->name()->as_C_string(); | |
| 1948 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
| 1949 char current_method[CompilerCounters::cmname_buffer_length]; | |
| 1950 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
| 1951 | |
| 1952 if (UsePerfData) { | |
|
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1953 const char* class_name = method->method_holder()->name()->as_C_string(); |
| 0 | 1954 |
| 1955 size_t s1len = strlen(class_name); | |
| 1956 size_t s2len = strlen(method_name); | |
| 1957 | |
| 1958 // check if we need to truncate the string | |
| 1959 if (s1len + s2len + 2 > maxLen) { | |
| 1960 | |
| 1961 // the strategy is to lop off the leading characters of the | |
| 1962 // class name and the trailing characters of the method name. | |
| 1963 | |
| 1964 if (s2len + 2 > maxLen) { | |
| 1965 // lop of the entire class name string, let snprintf handle | |
| 1966 // truncation of the method name. | |
| 1967 class_name += s1len; // null string | |
| 1968 } | |
| 1969 else { | |
| 1970 // lop off the extra characters from the front of the class name | |
| 1971 class_name += ((s1len + s2len + 2) - maxLen); | |
| 1972 } | |
| 1973 } | |
| 1974 | |
| 1975 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
| 1976 } | |
| 1977 | |
| 1978 if (CICountOSR && is_osr) { | |
| 1979 _last_compile_type = osr_compile; | |
| 1980 } else { | |
| 1981 _last_compile_type = normal_compile; | |
| 1982 } | |
| 1983 _last_compile_level = comp_level; | |
| 1984 | |
| 1985 if (UsePerfData) { | |
| 1986 CompilerCounters* counters = thread->counters(); | |
| 1987 counters->set_current_method(current_method); | |
| 1988 counters->set_compile_type((jlong)_last_compile_type); | |
| 1989 } | |
| 1990 } | |
| 1991 | |
| 1992 | |
| 1993 // ------------------------------------------------------------------ | |
| 1994 // CompileBroker::push_jni_handle_block | |
| 1995 // | |
| 1996 // Push on a new block of JNI handles. | |
| 1997 void CompileBroker::push_jni_handle_block() { | |
| 1998 JavaThread* thread = JavaThread::current(); | |
| 1999 | |
| 2000 // Allocate a new block for JNI handles. | |
| 2001 // Inlined code from jni_PushLocalFrame() | |
| 2002 JNIHandleBlock* java_handles = thread->active_handles(); | |
| 2003 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
| 2004 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
| 2005 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
| 2006 thread->set_active_handles(compile_handles); | |
| 2007 } | |
| 2008 | |
| 2009 | |
| 2010 // ------------------------------------------------------------------ | |
| 2011 // CompileBroker::pop_jni_handle_block | |
| 2012 // | |
| 2013 // Pop off the current block of JNI handles. | |
| 2014 void CompileBroker::pop_jni_handle_block() { | |
| 2015 JavaThread* thread = JavaThread::current(); | |
| 2016 | |
| 2017 // Release our JNI handle block | |
| 2018 JNIHandleBlock* compile_handles = thread->active_handles(); | |
| 2019 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
| 2020 thread->set_active_handles(java_handles); | |
| 2021 compile_handles->set_pop_frame_link(NULL); | |
| 2022 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
| 2023 } | |
| 2024 | |
| 2025 | |
| 2026 // ------------------------------------------------------------------ | |
| 2027 // CompileBroker::check_break_at | |
| 2028 // | |
| 2029 // Should the compilation break at the current compilation. | |
| 2030 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
| 2031 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
| 2032 return true; | |
| 2033 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
| 2034 return true; | |
| 2035 } else { | |
| 2036 return (compile_id == CIBreakAt); | |
| 2037 } | |
| 2038 } | |
| 2039 | |
| 2040 // ------------------------------------------------------------------ | |
| 2041 // CompileBroker::collect_statistics | |
| 2042 // | |
| 2043 // Collect statistics about the compilation. | |
| 2044 | |
| 2045 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
| 2046 bool success = task->is_success(); | |
|
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2047 methodHandle method (thread, task->method()); |
| 0 | 2048 uint compile_id = task->compile_id(); |
| 2049 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
| 2050 nmethod* code = task->code(); | |
| 2051 CompilerCounters* counters = thread->counters(); | |
| 2052 | |
| 2053 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
| 2054 MutexLocker locker(CompileStatistics_lock); | |
| 2055 | |
| 2056 // _perf variables are production performance counters which are | |
| 2057 // updated regardless of the setting of the CITime and CITimeEach flags | |
| 2058 // | |
| 2059 if (!success) { | |
| 2060 _total_bailout_count++; | |
| 2061 if (UsePerfData) { | |
| 2062 _perf_last_failed_method->set_value(counters->current_method()); | |
| 2063 _perf_last_failed_type->set_value(counters->compile_type()); | |
| 2064 _perf_total_bailout_count->inc(); | |
| 2065 } | |
| 2066 } else if (code == NULL) { | |
| 2067 if (UsePerfData) { | |
| 2068 _perf_last_invalidated_method->set_value(counters->current_method()); | |
| 2069 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
| 2070 _perf_total_invalidated_count->inc(); | |
| 2071 } | |
| 2072 _total_invalidated_count++; | |
| 2073 } else { | |
| 2074 // Compilation succeeded | |
| 2075 | |
| 2076 // update compilation ticks - used by the implementation of | |
| 2077 // java.lang.management.CompilationMBean | |
| 2078 _perf_total_compilation->inc(time.ticks()); | |
| 2079 | |
| 2080 if (CITime) { | |
| 2081 _t_total_compilation.add(time); | |
| 2082 if (is_osr) { | |
| 2083 _t_osr_compilation.add(time); | |
| 2084 _sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
|
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2085 #ifdef GRAAL |
|
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2086 compiler(task->comp_level())->stats()->_t_osr_compilation.add(time); |
|
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2087 compiler(task->comp_level())->stats()->_sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); |
|
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2088 #endif |
| 0 | 2089 } else { |
| 2090 _t_standard_compilation.add(time); | |
| 2091 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
|
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2092 #ifdef GRAAL |
|
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2093 compiler(task->comp_level())->stats()->_t_standard_compilation.add(time); |
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2094 compiler(task->comp_level())->stats()->_sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); |
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2095 #endif |
| 0 | 2096 } |
| 2097 } | |
| 2098 | |
| 2099 if (UsePerfData) { | |
| 2100 // save the name of the last method compiled | |
| 2101 _perf_last_method->set_value(counters->current_method()); | |
| 2102 _perf_last_compile_type->set_value(counters->compile_type()); | |
| 2103 _perf_last_compile_size->set_value(method->code_size() + | |
| 2104 task->num_inlined_bytecodes()); | |
| 2105 if (is_osr) { | |
| 2106 _perf_osr_compilation->inc(time.ticks()); | |
| 2107 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2108 } else { | |
| 2109 _perf_standard_compilation->inc(time.ticks()); | |
| 2110 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2111 } | |
| 2112 } | |
| 2113 | |
| 2114 if (CITimeEach) { | |
| 2115 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
| 2116 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
| 2117 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
| 2118 } | |
| 2119 | |
| 2120 // Collect counts of successful compilations | |
| 1748 | 2121 _sum_nmethod_size += code->total_size(); |
| 2122 _sum_nmethod_code_size += code->insts_size(); | |
| 0 | 2123 _total_compile_count++; |
| 2124 | |
| 2125 if (UsePerfData) { | |
| 1748 | 2126 _perf_sum_nmethod_size->inc( code->total_size()); |
| 2127 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
| 0 | 2128 _perf_total_compile_count->inc(); |
| 2129 } | |
| 2130 | |
| 2131 if (is_osr) { | |
| 2132 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
| 2133 _total_osr_compile_count++; | |
| 2134 } else { | |
| 2135 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
| 2136 _total_standard_compile_count++; | |
| 2137 } | |
| 2138 } | |
| 2139 // set the current method for the thread to null | |
| 2140 if (UsePerfData) counters->set_current_method(""); | |
| 2141 } | |
| 2142 | |
| 2143 | |
| 2144 | |
| 2145 void CompileBroker::print_times() { | |
| 2146 tty->cr(); | |
| 2147 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
| 2148 tty->print_cr("------------------------------------------------"); | |
| 2149 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
| 2150 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
| 2151 tty->print_cr(" Total compilation time : %6.3f s", CompileBroker::_t_total_compilation.seconds()); | |
| 2152 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", | |
| 2153 CompileBroker::_t_standard_compilation.seconds(), | |
| 2154 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count); | |
| 2155 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 | 2156 |
| 1783 | 2157 if (compiler(CompLevel_simple) != NULL) { |
| 2158 compiler(CompLevel_simple)->print_timers(); | |
| 0 | 2159 } |
| 1783 | 2160 if (compiler(CompLevel_full_optimization) != NULL) { |
| 2161 compiler(CompLevel_full_optimization)->print_timers(); | |
| 2162 } | |
| 0 | 2163 tty->cr(); |
| 2164 int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled; | |
| 2165 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); | |
| 2166 tty->print_cr(" Standard compilation : %6d bytes", CompileBroker::_sum_standard_bytes_compiled); | |
| 2167 tty->print_cr(" On stack replacement : %6d bytes", CompileBroker::_sum_osr_bytes_compiled); | |
|
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2168 double tcs = CompileBroker::_t_total_compilation.seconds(); |
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2169 int bps = tcs == 0.0 ? 0 : (int)(tcb / tcs); |
| 0 | 2170 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); |
|
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2171 #ifdef GRAAL |
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2172 for (unsigned int i = 0; i < sizeof(_compilers) / sizeof(AbstractCompiler*); i++) { |
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2173 AbstractCompiler* comp = _compilers[i]; |
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2174 if (comp != NULL) { |
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2175 CompilerStatistics* stats = comp->stats(); |
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2176 int bytecodes = stats->_sum_osr_bytes_compiled + stats->_sum_standard_bytes_compiled; |
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2177 if (bytecodes != 0) { |
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2178 double seconds = stats->_t_osr_compilation.seconds() + stats->_t_standard_compilation.seconds(); |
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140d4d4ab3b9
added per-compiler compilation speed statistics for C1 and C2 (included in output produced by -XX:+CITime)
Doug Simon <doug.simon@oracle.com>
parents:
7482
diff
changeset
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2179 int bps = seconds == 0.0 ? 0 : (int) (bytecodes / seconds); |
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140d4d4ab3b9
added per-compiler compilation speed statistics for C1 and C2 (included in output produced by -XX:+CITime)
Doug Simon <doug.simon@oracle.com>
parents:
7482
diff
changeset
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2180 tty->print_cr(" %7s compilation speed: %6d bytes/s {standard: %6.3f s, %6d bytes; osr: %6.3f s, %6d bytes}", |
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140d4d4ab3b9
added per-compiler compilation speed statistics for C1 and C2 (included in output produced by -XX:+CITime)
Doug Simon <doug.simon@oracle.com>
parents:
7482
diff
changeset
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2181 comp->name(), bps, stats->_t_standard_compilation.seconds(), stats->_sum_standard_bytes_compiled, |
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140d4d4ab3b9
added per-compiler compilation speed statistics for C1 and C2 (included in output produced by -XX:+CITime)
Doug Simon <doug.simon@oracle.com>
parents:
7482
diff
changeset
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2182 stats->_t_osr_compilation.seconds(), stats->_sum_osr_bytes_compiled); |
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140d4d4ab3b9
added per-compiler compilation speed statistics for C1 and C2 (included in output produced by -XX:+CITime)
Doug Simon <doug.simon@oracle.com>
parents:
7482
diff
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2183 } |
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140d4d4ab3b9
added per-compiler compilation speed statistics for C1 and C2 (included in output produced by -XX:+CITime)
Doug Simon <doug.simon@oracle.com>
parents:
7482
diff
changeset
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2184 } |
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140d4d4ab3b9
added per-compiler compilation speed statistics for C1 and C2 (included in output produced by -XX:+CITime)
Doug Simon <doug.simon@oracle.com>
parents:
7482
diff
changeset
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2185 } |
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140d4d4ab3b9
added per-compiler compilation speed statistics for C1 and C2 (included in output produced by -XX:+CITime)
Doug Simon <doug.simon@oracle.com>
parents:
7482
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changeset
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2186 #endif |
| 0 | 2187 tty->cr(); |
| 2188 tty->print_cr(" nmethod code size : %6d bytes", CompileBroker::_sum_nmethod_code_size); | |
| 2189 tty->print_cr(" nmethod total size : %6d bytes", CompileBroker::_sum_nmethod_size); | |
| 2190 } | |
| 2191 | |
| 2192 | |
| 2193 // Debugging output for failure | |
| 2194 void CompileBroker::print_last_compile() { | |
| 2195 if ( _last_compile_level != CompLevel_none && | |
| 2196 compiler(_last_compile_level) != NULL && | |
| 2197 _last_method_compiled != NULL && | |
| 2198 _last_compile_type != no_compile) { | |
| 2199 if (_last_compile_type == osr_compile) { | |
| 2200 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
| 2201 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
| 2202 } else { | |
| 2203 tty->print_cr("Last parse: %d+++(%d) %s", | |
| 2204 _compilation_id, _last_compile_level, _last_method_compiled); | |
| 2205 } | |
| 2206 } | |
| 2207 } | |
| 2208 | |
| 2209 | |
| 2210 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
| 2211 #ifndef PRODUCT | |
| 2212 st->print_cr("Compiler thread printing unimplemented."); | |
| 2213 st->cr(); | |
| 2214 #endif | |
| 2215 } |