Mercurial > hg > graal-compiler
annotate src/share/vm/compiler/compileBroker.cpp @ 3651:a31028282e3e
Support blocking compilation.
| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Wed, 16 Nov 2011 23:35:03 +0100 |
| parents | 0e8a2a629afb |
| children | 04b9a2566eec |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "classfile/vmSymbols.hpp" | |
| 28 #include "code/codeCache.hpp" | |
| 29 #include "compiler/compileBroker.hpp" | |
| 30 #include "compiler/compileLog.hpp" | |
| 31 #include "compiler/compilerOracle.hpp" | |
| 32 #include "interpreter/linkResolver.hpp" | |
| 33 #include "memory/allocation.inline.hpp" | |
| 34 #include "oops/methodDataOop.hpp" | |
| 35 #include "oops/methodOop.hpp" | |
| 36 #include "oops/oop.inline.hpp" | |
| 37 #include "prims/nativeLookup.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
| 39 #include "runtime/compilationPolicy.hpp" | |
| 40 #include "runtime/init.hpp" | |
| 41 #include "runtime/interfaceSupport.hpp" | |
| 42 #include "runtime/javaCalls.hpp" | |
| 43 #include "runtime/os.hpp" | |
| 44 #include "runtime/sharedRuntime.hpp" | |
| 45 #include "runtime/sweeper.hpp" | |
| 46 #include "utilities/dtrace.hpp" | |
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47 #include "graal/graalCompiler.hpp" |
| 1972 | 48 #ifdef COMPILER1 |
| 49 #include "c1/c1_Compiler.hpp" | |
| 50 #endif | |
| 51 #ifdef COMPILER2 | |
| 52 #include "opto/c2compiler.hpp" | |
| 53 #endif | |
| 54 #ifdef SHARK | |
| 55 #include "shark/sharkCompiler.hpp" | |
| 56 #endif | |
| 0 | 57 |
| 58 #ifdef DTRACE_ENABLED | |
| 59 | |
| 60 // Only bother with this argument setup if dtrace is available | |
| 61 | |
| 62 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, | |
| 63 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
| 64 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
| 65 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
| 66 | |
| 67 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) \ | |
| 68 { \ | |
| 69 char* comp_name = (char*)(compiler)->name(); \ | |
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70 Symbol* klass_name = (method)->klass_name(); \ |
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71 Symbol* name = (method)->name(); \ |
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72 Symbol* signature = (method)->signature(); \ |
| 0 | 73 HS_DTRACE_PROBE8(hotspot, method__compile__begin, \ |
| 74 comp_name, strlen(comp_name), \ | |
| 75 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 76 name->bytes(), name->utf8_length(), \ | |
| 77 signature->bytes(), signature->utf8_length()); \ | |
| 78 } | |
| 79 | |
| 80 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) \ | |
| 81 { \ | |
| 82 char* comp_name = (char*)(compiler)->name(); \ | |
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83 Symbol* klass_name = (method)->klass_name(); \ |
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84 Symbol* name = (method)->name(); \ |
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85 Symbol* signature = (method)->signature(); \ |
| 0 | 86 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ |
| 87 comp_name, strlen(comp_name), \ | |
| 88 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 89 name->bytes(), name->utf8_length(), \ | |
| 90 signature->bytes(), signature->utf8_length(), (success)); \ | |
| 91 } | |
| 92 | |
| 93 #else // ndef DTRACE_ENABLED | |
| 94 | |
| 95 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method) | |
| 96 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success) | |
| 97 | |
| 98 #endif // ndef DTRACE_ENABLED | |
| 99 | |
| 100 bool CompileBroker::_initialized = false; | |
| 101 volatile bool CompileBroker::_should_block = false; | |
| 1202 | 102 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
| 0 | 103 |
| 104 // The installed compiler(s) | |
| 105 AbstractCompiler* CompileBroker::_compilers[2]; | |
| 106 | |
| 107 // These counters are used for assigning id's to each compilation | |
| 108 uint CompileBroker::_compilation_id = 0; | |
| 109 uint CompileBroker::_osr_compilation_id = 0; | |
| 110 | |
| 111 // Debugging information | |
| 112 int CompileBroker::_last_compile_type = no_compile; | |
| 113 int CompileBroker::_last_compile_level = CompLevel_none; | |
| 114 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
| 115 | |
| 116 // Performance counters | |
| 117 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
| 118 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
| 119 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
| 120 | |
| 121 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
| 122 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
| 123 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
| 124 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
| 125 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
| 126 | |
| 127 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
| 128 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
| 129 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
| 130 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
| 131 | |
| 132 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
| 133 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
| 134 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
| 135 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
| 136 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
| 137 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
| 138 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
| 139 | |
| 140 // Timers and counters for generating statistics | |
| 141 elapsedTimer CompileBroker::_t_total_compilation; | |
| 142 elapsedTimer CompileBroker::_t_osr_compilation; | |
| 143 elapsedTimer CompileBroker::_t_standard_compilation; | |
| 144 | |
| 145 int CompileBroker::_total_bailout_count = 0; | |
| 146 int CompileBroker::_total_invalidated_count = 0; | |
| 147 int CompileBroker::_total_compile_count = 0; | |
| 148 int CompileBroker::_total_osr_compile_count = 0; | |
| 149 int CompileBroker::_total_standard_compile_count = 0; | |
| 150 | |
| 151 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
| 152 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
| 153 int CompileBroker::_sum_nmethod_size = 0; | |
| 154 int CompileBroker::_sum_nmethod_code_size = 0; | |
| 155 | |
| 1783 | 156 CompileQueue* CompileBroker::_c2_method_queue = NULL; |
| 157 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
| 0 | 158 CompileTask* CompileBroker::_task_free_list = NULL; |
| 159 | |
| 160 GrowableArray<CompilerThread*>* CompileBroker::_method_threads = NULL; | |
| 161 | |
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162 bool CompileBroker::_poll_java_queue = false; |
| 0 | 163 |
| 164 CompileTaskWrapper::CompileTaskWrapper(CompileTask* task) { | |
| 165 CompilerThread* thread = CompilerThread::current(); | |
| 166 thread->set_task(task); | |
| 167 CompileLog* log = thread->log(); | |
| 168 if (log != NULL) task->log_task_start(log); | |
| 169 } | |
| 170 | |
| 171 CompileTaskWrapper::~CompileTaskWrapper() { | |
| 172 CompilerThread* thread = CompilerThread::current(); | |
| 173 CompileTask* task = thread->task(); | |
| 174 CompileLog* log = thread->log(); | |
| 175 if (log != NULL) task->log_task_done(log); | |
| 176 thread->set_task(NULL); | |
| 177 task->set_code_handle(NULL); | |
| 178 DEBUG_ONLY(thread->set_env((ciEnv*)badAddress)); | |
| 179 if (task->is_blocking()) { | |
| 180 MutexLocker notifier(task->lock(), thread); | |
| 181 task->mark_complete(); | |
| 182 // Notify the waiting thread that the compilation has completed. | |
| 183 task->lock()->notify_all(); | |
| 184 } else { | |
| 185 task->mark_complete(); | |
| 186 | |
| 187 // By convention, the compiling thread is responsible for | |
| 188 // recycling a non-blocking CompileTask. | |
| 189 CompileBroker::free_task(task); | |
| 190 } | |
| 191 } | |
| 192 | |
| 193 | |
| 194 // ------------------------------------------------------------------ | |
| 195 // CompileTask::initialize | |
| 196 void CompileTask::initialize(int compile_id, | |
| 197 methodHandle method, | |
| 198 int osr_bci, | |
| 199 int comp_level, | |
| 200 methodHandle hot_method, | |
| 201 int hot_count, | |
| 202 const char* comment, | |
| 203 bool is_blocking) { | |
| 204 assert(!_lock->is_locked(), "bad locking"); | |
| 205 | |
| 206 _compile_id = compile_id; | |
| 207 _method = JNIHandles::make_global(method); | |
| 208 _osr_bci = osr_bci; | |
| 209 _is_blocking = is_blocking; | |
| 210 _comp_level = comp_level; | |
| 211 _num_inlined_bytecodes = 0; | |
| 212 | |
| 213 _is_complete = false; | |
| 214 _is_success = false; | |
| 215 _code_handle = NULL; | |
| 216 | |
| 217 _hot_method = NULL; | |
| 218 _hot_count = hot_count; | |
| 219 _time_queued = 0; // tidy | |
| 220 _comment = comment; | |
| 221 | |
| 222 if (LogCompilation) { | |
| 223 _time_queued = os::elapsed_counter(); | |
| 224 if (hot_method.not_null()) { | |
| 225 if (hot_method == method) { | |
| 226 _hot_method = _method; | |
| 227 } else { | |
| 228 _hot_method = JNIHandles::make_global(hot_method); | |
| 229 } | |
| 230 } | |
| 231 } | |
| 232 | |
| 233 _next = NULL; | |
| 234 } | |
| 235 | |
| 236 // ------------------------------------------------------------------ | |
| 237 // CompileTask::code/set_code | |
| 238 nmethod* CompileTask::code() const { | |
| 239 if (_code_handle == NULL) return NULL; | |
| 240 return _code_handle->code(); | |
| 241 } | |
| 242 void CompileTask::set_code(nmethod* nm) { | |
| 243 if (_code_handle == NULL && nm == NULL) return; | |
| 244 guarantee(_code_handle != NULL, ""); | |
| 245 _code_handle->set_code(nm); | |
| 246 if (nm == NULL) _code_handle = NULL; // drop the handle also | |
| 247 } | |
| 248 | |
| 249 // ------------------------------------------------------------------ | |
| 250 // CompileTask::free | |
| 251 void CompileTask::free() { | |
| 252 set_code(NULL); | |
| 253 assert(!_lock->is_locked(), "Should not be locked when freed"); | |
| 254 if (_hot_method != NULL && _hot_method != _method) { | |
| 255 JNIHandles::destroy_global(_hot_method); | |
| 256 } | |
| 257 JNIHandles::destroy_global(_method); | |
| 258 } | |
| 259 | |
| 260 | |
| 261 // ------------------------------------------------------------------ | |
| 262 // CompileTask::print | |
| 263 void CompileTask::print() { | |
| 264 tty->print("<CompileTask compile_id=%d ", _compile_id); | |
| 265 tty->print("method="); | |
| 266 ((methodOop)JNIHandles::resolve(_method))->print_name(tty); | |
| 267 tty->print_cr(" osr_bci=%d is_blocking=%s is_complete=%s is_success=%s>", | |
| 268 _osr_bci, bool_to_str(_is_blocking), | |
| 269 bool_to_str(_is_complete), bool_to_str(_is_success)); | |
| 270 } | |
| 271 | |
| 1783 | 272 |
| 0 | 273 // ------------------------------------------------------------------ |
| 274 // CompileTask::print_line_on_error | |
| 275 // | |
| 276 // This function is called by fatal error handler when the thread | |
| 277 // causing troubles is a compiler thread. | |
| 278 // | |
| 279 // Do not grab any lock, do not allocate memory. | |
| 280 // | |
| 281 // Otherwise it's the same as CompileTask::print_line() | |
| 282 // | |
| 283 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) { | |
| 284 // print compiler name | |
| 285 st->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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286 print_compilation(st); |
| 0 | 287 } |
| 288 | |
| 289 // ------------------------------------------------------------------ | |
| 290 // CompileTask::print_line | |
| 291 void CompileTask::print_line() { | |
| 292 ttyLocker ttyl; // keep the following output all in one block | |
| 293 // print compiler name if requested | |
| 294 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler(comp_level())->name()); | |
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295 print_compilation(); |
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296 } |
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297 |
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298 |
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299 // ------------------------------------------------------------------ |
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300 // CompileTask::print_compilation_impl |
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301 void CompileTask::print_compilation_impl(outputStream* st, methodOop method, int compile_id, int comp_level, bool is_osr_method, int osr_bci, bool is_blocking, const char* msg) { |
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302 st->print("%7d ", (int) st->time_stamp().milliseconds()); // print timestamp |
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303 st->print("%4d ", compile_id); // print compilation number |
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304 |
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305 // For unloaded methods the transition to zombie occurs after the |
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306 // method is cleared so it's impossible to report accurate |
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307 // information for that case. |
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308 bool is_synchronized = false; |
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309 bool has_exception_handler = false; |
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310 bool is_native = false; |
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311 if (method != NULL) { |
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312 is_synchronized = method->is_synchronized(); |
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313 has_exception_handler = method->has_exception_handler(); |
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314 is_native = method->is_native(); |
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315 } |
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316 // method attributes |
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317 const char compile_type = is_osr_method ? '%' : ' '; |
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318 const char sync_char = is_synchronized ? 's' : ' '; |
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319 const char exception_char = has_exception_handler ? '!' : ' '; |
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320 const char blocking_char = is_blocking ? 'b' : ' '; |
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321 const char native_char = is_native ? 'n' : ' '; |
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322 |
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323 // print method attributes |
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324 st->print("%c%c%c%c%c ", compile_type, sync_char, exception_char, blocking_char, native_char); |
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325 |
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326 if (TieredCompilation) { |
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327 if (comp_level != -1) st->print("%d ", comp_level); |
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328 else st->print("- "); |
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329 } |
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330 st->print(" "); // more indent |
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331 |
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332 if (method == NULL) { |
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333 st->print("(method)"); |
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334 } else { |
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335 method->print_short_name(st); |
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336 if (is_osr_method) { |
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337 st->print(" @ %d", osr_bci); |
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338 } |
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339 st->print(" (%d bytes)", method->code_size()); |
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340 } |
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341 |
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342 if (msg != NULL) { |
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343 st->print(" %s", msg); |
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344 } |
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345 st->cr(); |
| 0 | 346 } |
| 347 | |
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348 // ------------------------------------------------------------------ |
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349 // CompileTask::print_inlining |
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350 void CompileTask::print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg) { |
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351 // 1234567 |
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352 st->print(" "); // print timestamp |
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353 // 1234 |
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354 st->print(" "); // print compilation number |
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355 |
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356 // method attributes |
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357 const char sync_char = method->is_synchronized() ? 's' : ' '; |
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358 const char exception_char = method->has_exception_handlers() ? '!' : ' '; |
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359 const char monitors_char = method->has_monitor_bytecodes() ? 'm' : ' '; |
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360 |
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361 // print method attributes |
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362 st->print(" %c%c%c ", sync_char, exception_char, monitors_char); |
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363 |
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364 if (TieredCompilation) { |
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365 st->print(" "); |
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366 } |
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367 st->print(" "); // more indent |
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368 st->print(" "); // initial inlining indent |
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369 |
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370 for (int i = 0; i < inline_level; i++) st->print(" "); |
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371 |
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372 st->print("@ %d ", bci); // print bci |
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373 method->print_short_name(st); |
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374 st->print(" (%d bytes)", method->code_size()); |
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375 |
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376 if (msg != NULL) { |
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377 st->print(" %s", msg); |
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378 } |
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379 st->cr(); |
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380 } |
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381 |
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382 // ------------------------------------------------------------------ |
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383 // CompileTask::print_inline_indent |
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384 void CompileTask::print_inline_indent(int inline_level, outputStream* st) { |
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385 // 1234567 |
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386 st->print(" "); // print timestamp |
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387 // 1234 |
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388 st->print(" "); // print compilation number |
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389 // %s!bn |
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390 st->print(" "); // print method attributes |
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391 if (TieredCompilation) { |
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392 st->print(" "); |
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393 } |
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394 st->print(" "); // more indent |
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395 st->print(" "); // initial inlining indent |
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396 for (int i = 0; i < inline_level; i++) st->print(" "); |
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397 } |
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398 |
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399 // ------------------------------------------------------------------ |
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400 // CompileTask::print_compilation |
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401 void CompileTask::print_compilation(outputStream* st) { |
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402 oop rem = JNIHandles::resolve(method_handle()); |
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403 assert(rem != NULL && rem->is_method(), "must be"); |
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404 methodOop method = (methodOop) rem; |
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405 bool is_osr_method = osr_bci() != InvocationEntryBci; |
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406 print_compilation_impl(st, method, compile_id(), comp_level(), is_osr_method, osr_bci(), is_blocking()); |
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407 } |
| 0 | 408 |
| 409 // ------------------------------------------------------------------ | |
| 410 // CompileTask::log_task | |
| 411 void CompileTask::log_task(xmlStream* log) { | |
| 412 Thread* thread = Thread::current(); | |
| 413 methodHandle method(thread, | |
| 414 (methodOop)JNIHandles::resolve(method_handle())); | |
| 415 ResourceMark rm(thread); | |
| 416 | |
| 417 // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'> | |
| 418 if (_compile_id != 0) log->print(" compile_id='%d'", _compile_id); | |
| 419 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 420 log->print(" compile_kind='osr'"); // same as nmethod::compile_kind | |
| 421 } // else compile_kind='c2c' | |
| 422 if (!method.is_null()) log->method(method); | |
| 423 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 424 log->print(" osr_bci='%d'", _osr_bci); | |
| 425 } | |
| 426 if (_comp_level != CompLevel_highest_tier) { | |
| 427 log->print(" level='%d'", _comp_level); | |
| 428 } | |
| 429 if (_is_blocking) { | |
| 430 log->print(" blocking='1'"); | |
| 431 } | |
| 432 log->stamp(); | |
| 433 } | |
| 434 | |
| 435 | |
| 436 // ------------------------------------------------------------------ | |
| 437 // CompileTask::log_task_queued | |
| 438 void CompileTask::log_task_queued() { | |
| 439 Thread* thread = Thread::current(); | |
| 440 ttyLocker ttyl; | |
| 441 ResourceMark rm(thread); | |
| 442 | |
| 443 xtty->begin_elem("task_queued"); | |
| 444 log_task(xtty); | |
| 445 if (_comment != NULL) { | |
| 446 xtty->print(" comment='%s'", _comment); | |
| 447 } | |
| 448 if (_hot_method != NULL) { | |
| 449 methodHandle hot(thread, | |
| 450 (methodOop)JNIHandles::resolve(_hot_method)); | |
| 451 methodHandle method(thread, | |
| 452 (methodOop)JNIHandles::resolve(_method)); | |
| 453 if (hot() != method()) { | |
| 454 xtty->method(hot); | |
| 455 } | |
| 456 } | |
| 457 if (_hot_count != 0) { | |
| 458 xtty->print(" hot_count='%d'", _hot_count); | |
| 459 } | |
| 460 xtty->end_elem(); | |
| 461 } | |
| 462 | |
| 463 | |
| 464 // ------------------------------------------------------------------ | |
| 465 // CompileTask::log_task_start | |
| 466 void CompileTask::log_task_start(CompileLog* log) { | |
| 467 log->begin_head("task"); | |
| 468 log_task(log); | |
| 469 log->end_head(); | |
| 470 } | |
| 471 | |
| 472 | |
| 473 // ------------------------------------------------------------------ | |
| 474 // CompileTask::log_task_done | |
| 475 void CompileTask::log_task_done(CompileLog* log) { | |
| 476 Thread* thread = Thread::current(); | |
| 477 methodHandle method(thread, | |
| 478 (methodOop)JNIHandles::resolve(method_handle())); | |
| 479 ResourceMark rm(thread); | |
| 480 | |
| 481 // <task_done ... stamp='1.234'> </task> | |
| 482 nmethod* nm = code(); | |
| 483 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
| 1748 | 484 _is_success, nm == NULL ? 0 : nm->content_size(), |
| 0 | 485 method->invocation_count()); |
| 486 int bec = method->backedge_count(); | |
| 487 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
| 488 // Note: "_is_complete" is about to be set, but is not. | |
| 489 if (_num_inlined_bytecodes != 0) { | |
| 490 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
| 491 } | |
| 492 log->stamp(); | |
| 493 log->end_elem(); | |
| 494 log->tail("task"); | |
| 495 log->clear_identities(); // next task will have different CI | |
| 496 if (log->unflushed_count() > 2000) { | |
| 497 log->flush(); | |
| 498 } | |
| 499 log->mark_file_end(); | |
| 500 } | |
| 501 | |
| 502 | |
| 503 | |
| 504 // ------------------------------------------------------------------ | |
| 505 // CompileQueue::add | |
| 506 // | |
| 507 // Add a CompileTask to a CompileQueue | |
| 508 void CompileQueue::add(CompileTask* task) { | |
| 509 assert(lock()->owned_by_self(), "must own lock"); | |
| 510 | |
| 511 task->set_next(NULL); | |
| 1783 | 512 task->set_prev(NULL); |
| 0 | 513 |
| 514 if (_last == NULL) { | |
| 515 // The compile queue is empty. | |
| 516 assert(_first == NULL, "queue is empty"); | |
| 517 _first = task; | |
| 518 _last = task; | |
| 519 } else { | |
| 520 // Append the task to the queue. | |
| 521 assert(_last->next() == NULL, "not last"); | |
| 522 _last->set_next(task); | |
| 1783 | 523 task->set_prev(_last); |
| 0 | 524 _last = task; |
| 525 } | |
| 1783 | 526 ++_size; |
| 0 | 527 |
| 528 // Mark the method as being in the compile queue. | |
| 529 ((methodOop)JNIHandles::resolve(task->method_handle()))->set_queued_for_compilation(); | |
| 530 | |
| 531 if (CIPrintCompileQueue) { | |
| 532 print(); | |
| 533 } | |
| 534 | |
| 535 if (LogCompilation && xtty != NULL) { | |
| 536 task->log_task_queued(); | |
| 537 } | |
| 538 | |
| 539 // Notify CompilerThreads that a task is available. | |
| 1783 | 540 lock()->notify_all(); |
| 0 | 541 } |
| 542 | |
| 543 // ------------------------------------------------------------------ | |
| 544 // CompileQueue::get | |
| 545 // | |
| 546 // Get the next CompileTask from a CompileQueue | |
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547 CompileTask* CompileQueue::get(bool& interrupt) { |
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548 NMethodSweeper::possibly_sweep(); |
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549 |
| 0 | 550 MutexLocker locker(lock()); |
| 551 // Wait for an available CompileTask. | |
| 552 while (_first == NULL) { | |
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553 if (interrupt) { |
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554 return NULL; |
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555 } |
| 0 | 556 // There is no work to be done right now. Wait. |
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557 if (UseCodeCacheFlushing && (!CompileBroker::should_compile_new_jobs() || CodeCache::needs_flushing())) { |
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558 // During the emergency sweeping periods, wake up and sweep occasionally |
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559 bool timedout = lock()->wait(!Mutex::_no_safepoint_check_flag, NmethodSweepCheckInterval*1000); |
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560 if (timedout) { |
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561 MutexUnlocker ul(lock()); |
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562 // When otherwise not busy, run nmethod sweeping |
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563 NMethodSweeper::possibly_sweep(); |
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564 } |
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565 } else { |
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566 // During normal operation no need to wake up on timer |
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567 lock()->wait(); |
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568 } |
| 0 | 569 } |
| 1783 | 570 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
| 571 remove(task); | |
| 572 return task; | |
| 573 } | |
| 0 | 574 |
| 1783 | 575 void CompileQueue::remove(CompileTask* task) |
| 576 { | |
| 577 assert(lock()->owned_by_self(), "must own lock"); | |
| 578 if (task->prev() != NULL) { | |
| 579 task->prev()->set_next(task->next()); | |
| 580 } else { | |
| 581 // max is the first element | |
| 582 assert(task == _first, "Sanity"); | |
| 583 _first = task->next(); | |
| 0 | 584 } |
| 585 | |
| 1783 | 586 if (task->next() != NULL) { |
| 587 task->next()->set_prev(task->prev()); | |
| 588 } else { | |
| 589 // max is the last element | |
| 590 assert(task == _last, "Sanity"); | |
| 591 _last = task->prev(); | |
| 592 } | |
| 0 | 593 |
| 1783 | 594 --_size; |
| 0 | 595 } |
| 596 | |
| 597 // ------------------------------------------------------------------ | |
| 598 // CompileQueue::print | |
| 599 void CompileQueue::print() { | |
| 600 tty->print_cr("Contents of %s", name()); | |
| 601 tty->print_cr("----------------------"); | |
| 602 CompileTask* task = _first; | |
| 603 while (task != NULL) { | |
| 604 task->print_line(); | |
| 605 task = task->next(); | |
| 606 } | |
| 607 tty->print_cr("----------------------"); | |
| 608 } | |
| 609 | |
| 610 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
| 611 | |
| 612 _current_method[0] = '\0'; | |
| 613 _compile_type = CompileBroker::no_compile; | |
| 614 | |
| 615 if (UsePerfData) { | |
| 616 ResourceMark rm; | |
| 617 | |
| 618 // create the thread instance name space string - don't create an | |
| 619 // instance subspace if instance is -1 - keeps the adapterThread | |
| 620 // counters from having a ".0" namespace. | |
| 621 const char* thread_i = (instance == -1) ? thread_name : | |
| 622 PerfDataManager::name_space(thread_name, instance); | |
| 623 | |
| 624 | |
| 625 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
| 626 _perf_current_method = | |
| 627 PerfDataManager::create_string_variable(SUN_CI, name, | |
| 628 cmname_buffer_length, | |
| 629 _current_method, CHECK); | |
| 630 | |
| 631 name = PerfDataManager::counter_name(thread_i, "type"); | |
| 632 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
| 633 PerfData::U_None, | |
| 634 (jlong)_compile_type, | |
| 635 CHECK); | |
| 636 | |
| 637 name = PerfDataManager::counter_name(thread_i, "time"); | |
| 638 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
| 639 PerfData::U_Ticks, CHECK); | |
| 640 | |
| 641 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
| 642 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
| 643 PerfData::U_Events, CHECK); | |
| 644 } | |
| 645 } | |
| 646 | |
|
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647 void CompileBroker::add_method_to_queue(klassOop k, Symbol* name, Symbol* signature) { |
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648 Thread* THREAD = Thread::current(); |
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649 instanceKlass* klass = instanceKlass::cast(k); |
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650 methodOop method = klass->find_method(name, signature); |
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651 CompileBroker::compile_method(method, -1, 0, method, 0, "initial compile of object initializer", THREAD); |
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652 if (HAS_PENDING_EXCEPTION) { |
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653 CLEAR_PENDING_EXCEPTION; |
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654 fatal("error inserting method into compile queue"); |
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655 } |
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656 } |
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657 |
|
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658 void CompileBroker::notify_java_queue() { |
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659 HandleMark hm; |
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660 ResourceMark rm; |
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661 |
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662 _poll_java_queue = true; |
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663 { |
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664 ThreadInVMfromNative tivm(JavaThread::current()); |
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665 MutexLocker locker(_c1_method_queue->lock(), Thread::current()); |
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666 |
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667 _c1_method_queue->lock()->notify_all(); |
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668 } |
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669 } |
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670 |
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671 |
| 0 | 672 // ------------------------------------------------------------------ |
| 673 // CompileBroker::compilation_init | |
| 674 // | |
| 675 // Initialize the Compilation object | |
| 676 void CompileBroker::compilation_init() { | |
| 677 _last_method_compiled[0] = '\0'; | |
| 678 | |
| 1970 | 679 #ifndef SHARK |
| 0 | 680 // Set the interface to the current compiler(s). |
| 1783 | 681 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
| 682 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
| 0 | 683 #ifdef COMPILER1 |
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684 if (UseGraal) { |
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685 _compilers[0] = new GraalCompiler(); |
| 1930 | 686 } else if (c1_count > 0) { |
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687 _compilers[0] = new Compiler(); |
| 1783 | 688 } |
| 0 | 689 #ifndef COMPILER2 |
| 690 _compilers[1] = _compilers[0]; | |
| 691 #endif | |
| 692 #endif // COMPILER1 | |
| 693 | |
| 694 #ifdef COMPILER2 | |
| 1783 | 695 if (c2_count > 0) { |
| 696 _compilers[1] = new C2Compiler(); | |
| 697 } | |
| 0 | 698 #endif // COMPILER2 |
| 699 | |
| 1970 | 700 #else // SHARK |
| 701 int c1_count = 0; | |
| 702 int c2_count = 1; | |
| 703 | |
| 704 _compilers[1] = new SharkCompiler(); | |
| 705 #endif // SHARK | |
| 1692 | 706 |
| 0 | 707 // Initialize the CompileTask free list |
| 708 _task_free_list = NULL; | |
| 709 | |
| 710 // Start the CompilerThreads | |
| 1783 | 711 init_compiler_threads(c1_count, c2_count); |
| 0 | 712 // totalTime performance counter is always created as it is required |
| 713 // by the implementation of java.lang.management.CompilationMBean. | |
| 714 { | |
| 715 EXCEPTION_MARK; | |
| 716 _perf_total_compilation = | |
| 717 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
| 718 PerfData::U_Ticks, CHECK); | |
| 719 } | |
| 720 | |
| 721 | |
| 722 if (UsePerfData) { | |
| 723 | |
| 724 EXCEPTION_MARK; | |
| 725 | |
| 726 // create the jvmstat performance counters | |
| 727 _perf_osr_compilation = | |
| 728 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
| 729 PerfData::U_Ticks, CHECK); | |
| 730 | |
| 731 _perf_standard_compilation = | |
| 732 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
| 733 PerfData::U_Ticks, CHECK); | |
| 734 | |
| 735 _perf_total_bailout_count = | |
| 736 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
| 737 PerfData::U_Events, CHECK); | |
| 738 | |
| 739 _perf_total_invalidated_count = | |
| 740 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
| 741 PerfData::U_Events, CHECK); | |
| 742 | |
| 743 _perf_total_compile_count = | |
| 744 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
| 745 PerfData::U_Events, CHECK); | |
| 746 _perf_total_osr_compile_count = | |
| 747 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
| 748 PerfData::U_Events, CHECK); | |
| 749 | |
| 750 _perf_total_standard_compile_count = | |
| 751 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
| 752 PerfData::U_Events, CHECK); | |
| 753 | |
| 754 _perf_sum_osr_bytes_compiled = | |
| 755 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
| 756 PerfData::U_Bytes, CHECK); | |
| 757 | |
| 758 _perf_sum_standard_bytes_compiled = | |
| 759 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
| 760 PerfData::U_Bytes, CHECK); | |
| 761 | |
| 762 _perf_sum_nmethod_size = | |
| 763 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
| 764 PerfData::U_Bytes, CHECK); | |
| 765 | |
| 766 _perf_sum_nmethod_code_size = | |
| 767 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
| 768 PerfData::U_Bytes, CHECK); | |
| 769 | |
| 770 _perf_last_method = | |
| 771 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
| 772 CompilerCounters::cmname_buffer_length, | |
| 773 "", CHECK); | |
| 774 | |
| 775 _perf_last_failed_method = | |
| 776 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
| 777 CompilerCounters::cmname_buffer_length, | |
| 778 "", CHECK); | |
| 779 | |
| 780 _perf_last_invalidated_method = | |
| 781 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
| 782 CompilerCounters::cmname_buffer_length, | |
| 783 "", CHECK); | |
| 784 | |
| 785 _perf_last_compile_type = | |
| 786 PerfDataManager::create_variable(SUN_CI, "lastType", | |
| 787 PerfData::U_None, | |
| 788 (jlong)CompileBroker::no_compile, | |
| 789 CHECK); | |
| 790 | |
| 791 _perf_last_compile_size = | |
| 792 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
| 793 PerfData::U_Bytes, | |
| 794 (jlong)CompileBroker::no_compile, | |
| 795 CHECK); | |
| 796 | |
| 797 | |
| 798 _perf_last_failed_type = | |
| 799 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
| 800 PerfData::U_None, | |
| 801 (jlong)CompileBroker::no_compile, | |
| 802 CHECK); | |
| 803 | |
| 804 _perf_last_invalidated_type = | |
| 805 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
| 806 PerfData::U_None, | |
| 807 (jlong)CompileBroker::no_compile, | |
| 808 CHECK); | |
| 809 } | |
| 810 | |
| 811 _initialized = true; | |
| 812 } | |
| 813 | |
| 814 | |
| 815 | |
| 816 // ------------------------------------------------------------------ | |
| 817 // CompileBroker::make_compiler_thread | |
| 818 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS) { | |
| 819 CompilerThread* compiler_thread = NULL; | |
| 820 | |
| 821 klassOop k = | |
|
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822 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_Thread(), |
| 0 | 823 true, CHECK_0); |
| 824 instanceKlassHandle klass (THREAD, k); | |
| 825 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
| 826 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
| 827 | |
| 828 // Initialize thread_oop to put it into the system threadGroup | |
| 829 Handle thread_group (THREAD, Universe::system_thread_group()); | |
| 830 JavaValue result(T_VOID); | |
| 831 JavaCalls::call_special(&result, thread_oop, | |
| 832 klass, | |
|
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833 vmSymbols::object_initializer_name(), |
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|
834 vmSymbols::threadgroup_string_void_signature(), |
| 0 | 835 thread_group, |
| 836 string, | |
| 837 CHECK_0); | |
| 838 | |
| 839 { | |
| 840 MutexLocker mu(Threads_lock, THREAD); | |
| 841 compiler_thread = new CompilerThread(queue, counters); | |
| 842 // At this point the new CompilerThread data-races with this startup | |
| 843 // thread (which I believe is the primoridal thread and NOT the VM | |
| 844 // thread). This means Java bytecodes being executed at startup can | |
| 845 // queue compile jobs which will run at whatever default priority the | |
| 846 // newly created CompilerThread runs at. | |
| 847 | |
| 848 | |
| 849 // At this point it may be possible that no osthread was created for the | |
| 850 // JavaThread due to lack of memory. We would have to throw an exception | |
| 851 // in that case. However, since this must work and we do not allow | |
| 852 // exceptions anyway, check and abort if this fails. | |
| 853 | |
| 854 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
| 855 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
| 856 "unable to create new native thread"); | |
| 857 } | |
| 858 | |
| 859 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
| 860 | |
| 861 // Note that this only sets the JavaThread _priority field, which by | |
| 862 // definition is limited to Java priorities and not OS priorities. | |
| 863 // The os-priority is set in the CompilerThread startup code itself | |
| 864 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); | |
| 865 // CLEANUP PRIORITIES: This -if- statement hids a bug whereby the compiler | |
| 866 // threads never have their OS priority set. The assumption here is to | |
| 867 // enable the Performance group to do flag tuning, figure out a suitable | |
| 868 // CompilerThreadPriority, and then remove this 'if' statement (and | |
| 869 // comment) and unconditionally set the priority. | |
| 870 | |
| 871 // Compiler Threads should be at the highest Priority | |
| 872 if ( CompilerThreadPriority != -1 ) | |
| 873 os::set_native_priority( compiler_thread, CompilerThreadPriority ); | |
| 874 else | |
| 875 os::set_native_priority( compiler_thread, os::java_to_os_priority[NearMaxPriority]); | |
| 876 | |
| 877 // Note that I cannot call os::set_priority because it expects Java | |
| 878 // priorities and I am *explicitly* using OS priorities so that it's | |
| 879 // possible to set the compiler thread priority higher than any Java | |
| 880 // thread. | |
| 881 | |
| 882 java_lang_Thread::set_daemon(thread_oop()); | |
| 883 | |
| 884 compiler_thread->set_threadObj(thread_oop()); | |
| 885 Threads::add(compiler_thread); | |
| 886 Thread::start(compiler_thread); | |
| 887 } | |
| 888 // Let go of Threads_lock before yielding | |
| 889 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
| 890 | |
| 891 return compiler_thread; | |
| 892 } | |
| 893 | |
| 894 | |
| 895 // ------------------------------------------------------------------ | |
| 896 // CompileBroker::init_compiler_threads | |
| 897 // | |
| 898 // Initialize the compilation queue | |
| 1783 | 899 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
| 0 | 900 EXCEPTION_MARK; |
| 2447 | 901 #if !defined(ZERO) && !defined(SHARK) |
| 1783 | 902 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
| 2447 | 903 #endif // !ZERO && !SHARK |
| 1783 | 904 if (c2_compiler_count > 0) { |
| 905 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
| 906 } | |
| 907 if (c1_compiler_count > 0) { | |
| 908 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
| 909 } | |
| 0 | 910 |
| 1783 | 911 int compiler_count = c1_compiler_count + c2_compiler_count; |
| 912 | |
| 0 | 913 _method_threads = |
| 914 new (ResourceObj::C_HEAP) GrowableArray<CompilerThread*>(compiler_count, true); | |
| 915 | |
| 916 char name_buffer[256]; | |
| 1783 | 917 for (int i = 0; i < c2_compiler_count; i++) { |
| 0 | 918 // Create a name for our thread. |
| 1783 | 919 sprintf(name_buffer, "C2 CompilerThread%d", i); |
| 0 | 920 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
| 1783 | 921 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, CHECK); |
| 0 | 922 _method_threads->append(new_thread); |
| 923 } | |
| 1783 | 924 |
| 925 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
| 926 // Create a name for our thread. | |
| 927 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
| 928 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
| 929 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, CHECK); | |
| 930 _method_threads->append(new_thread); | |
| 931 } | |
| 932 | |
| 0 | 933 if (UsePerfData) { |
| 934 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, | |
| 935 compiler_count, CHECK); | |
| 936 } | |
| 937 } | |
| 938 | |
| 939 // ------------------------------------------------------------------ | |
| 940 // CompileBroker::is_idle | |
| 941 bool CompileBroker::is_idle() { | |
| 1783 | 942 if (_c2_method_queue != NULL && !_c2_method_queue->is_empty()) { |
| 943 return false; | |
| 944 } else if (_c1_method_queue != NULL && !_c1_method_queue->is_empty()) { | |
| 0 | 945 return false; |
| 946 } else { | |
| 947 int num_threads = _method_threads->length(); | |
| 948 for (int i=0; i<num_threads; i++) { | |
| 949 if (_method_threads->at(i)->task() != NULL) { | |
| 950 return false; | |
| 951 } | |
| 952 } | |
| 953 | |
| 954 // No pending or active compilations. | |
| 955 return true; | |
| 956 } | |
| 957 } | |
| 958 | |
| 959 | |
| 960 // ------------------------------------------------------------------ | |
| 961 // CompileBroker::compile_method | |
| 962 // | |
| 963 // Request compilation of a method. | |
| 964 void CompileBroker::compile_method_base(methodHandle method, | |
| 965 int osr_bci, | |
| 966 int comp_level, | |
| 967 methodHandle hot_method, | |
| 968 int hot_count, | |
| 969 const char* comment, | |
| 970 TRAPS) { | |
| 971 // do nothing if compiler thread(s) is not available | |
| 972 if (!_initialized ) { | |
| 973 return; | |
| 974 } | |
| 975 | |
| 976 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
| 977 assert(method->method_holder()->klass_part()->oop_is_instance(), | |
| 978 "sanity check"); | |
| 979 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), | |
| 980 "method holder must be initialized"); | |
| 981 | |
| 982 if (CIPrintRequests) { | |
| 983 tty->print("request: "); | |
| 984 method->print_short_name(tty); | |
| 985 if (osr_bci != InvocationEntryBci) { | |
| 986 tty->print(" osr_bci: %d", osr_bci); | |
| 987 } | |
| 988 tty->print(" comment: %s count: %d", comment, hot_count); | |
| 989 if (!hot_method.is_null()) { | |
| 990 tty->print(" hot: "); | |
| 991 if (hot_method() != method()) { | |
| 992 hot_method->print_short_name(tty); | |
| 993 } else { | |
| 994 tty->print("yes"); | |
| 995 } | |
| 996 } | |
| 997 tty->cr(); | |
| 998 } | |
| 999 | |
| 1000 // A request has been made for compilation. Before we do any | |
| 1001 // real work, check to see if the method has been compiled | |
| 1002 // in the meantime with a definitive result. | |
| 1003 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1004 return; | |
| 1005 } | |
| 1006 | |
| 2403 | 1007 #ifndef PRODUCT |
| 1008 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) { | |
| 1009 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) { | |
| 1010 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI. | |
| 1011 return; | |
| 1012 } | |
| 1013 } | |
| 1014 #endif | |
| 1783 | 1015 |
| 0 | 1016 // If this method is already in the compile queue, then |
| 1017 // we do not block the current thread. | |
| 1018 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1019 // We may want to decay our counter a bit here to prevent | |
| 1020 // multiple denied requests for compilation. This is an | |
| 1021 // open compilation policy issue. Note: The other possibility, | |
| 1022 // in the case that this is a blocking compile request, is to have | |
| 1023 // all subsequent blocking requesters wait for completion of | |
| 1024 // ongoing compiles. Note that in this case we'll need a protocol | |
| 1025 // for freeing the associated compile tasks. [Or we could have | |
| 1026 // a single static monitor on which all these waiters sleep.] | |
| 1027 return; | |
| 1028 } | |
| 1029 | |
|
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1030 // If the requesting thread is holding the pending list lock |
|
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1031 // then we just return. We can't risk blocking while holding |
|
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1032 // the pending list lock or a 3-way deadlock may occur |
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1033 // between the reference handler thread, a GC (instigated |
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1034 // by a compiler thread), and compiled method registration. |
|
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1035 if (instanceRefKlass::owns_pending_list_lock(JavaThread::current())) { |
|
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1036 return; |
|
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|
1037 } |
|
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|
1038 |
| 0 | 1039 // Outputs from the following MutexLocker block: |
| 1040 CompileTask* task = NULL; | |
| 1041 bool blocking = false; | |
| 1783 | 1042 CompileQueue* queue = compile_queue(comp_level); |
| 0 | 1043 |
| 1044 // Acquire our lock. | |
| 1045 { | |
| 1783 | 1046 MutexLocker locker(queue->lock(), THREAD); |
| 0 | 1047 |
|
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1048 if (JavaThread::current()->is_compiling() && !BackgroundCompilation) { |
|
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1049 |
|
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|
1050 TRACE_graal_1("Recursive compile %s!", method->name_and_sig_as_C_string()); |
|
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1051 method->set_not_compilable(); |
|
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1052 return; |
|
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1053 } |
|
7cf1952ec5fb
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|
1054 |
| 0 | 1055 // Make sure the method has not slipped into the queues since |
| 1056 // last we checked; note that those checks were "fast bail-outs". | |
| 1057 // Here we need to be more careful, see 14012000 below. | |
| 1058 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1059 return; | |
| 1060 } | |
| 1061 | |
| 1062 // We need to check again to see if the compilation has | |
| 1063 // completed. A previous compilation may have registered | |
| 1064 // some result. | |
| 1065 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1066 return; | |
| 1067 } | |
| 1068 | |
| 1069 // We now know that this compilation is not pending, complete, | |
| 1070 // or prohibited. Assign a compile_id to this compilation | |
| 1071 // and check to see if it is in our [Start..Stop) range. | |
| 1072 uint compile_id = assign_compile_id(method, osr_bci); | |
| 1073 if (compile_id == 0) { | |
| 1074 // The compilation falls outside the allowed range. | |
| 1075 return; | |
| 1076 } | |
| 1077 | |
| 1078 // Should this thread wait for completion of the compile? | |
| 1079 blocking = is_compile_blocking(method, osr_bci); | |
| 1080 | |
| 1081 // We will enter the compilation in the queue. | |
| 1082 // 14012000: Note that this sets the queued_for_compile bits in | |
| 1083 // the target method. We can now reason that a method cannot be | |
| 1084 // queued for compilation more than once, as follows: | |
| 1085 // Before a thread queues a task for compilation, it first acquires | |
| 1086 // the compile queue lock, then checks if the method's queued bits | |
| 1087 // are set or it has already been compiled. Thus there can not be two | |
| 1088 // instances of a compilation task for the same method on the | |
| 1089 // compilation queue. Consider now the case where the compilation | |
| 1090 // thread has already removed a task for that method from the queue | |
| 1091 // and is in the midst of compiling it. In this case, the | |
| 1092 // queued_for_compile bits must be set in the method (and these | |
| 1093 // will be visible to the current thread, since the bits were set | |
| 1094 // under protection of the compile queue lock, which we hold now. | |
| 1095 // When the compilation completes, the compiler thread first sets | |
| 1096 // the compilation result and then clears the queued_for_compile | |
| 1097 // bits. Neither of these actions are protected by a barrier (or done | |
| 1098 // under the protection of a lock), so the only guarantee we have | |
| 1099 // (on machines with TSO (Total Store Order)) is that these values | |
| 1100 // will update in that order. As a result, the only combinations of | |
| 1101 // these bits that the current thread will see are, in temporal order: | |
| 1102 // <RESULT, QUEUE> : | |
| 1103 // <0, 1> : in compile queue, but not yet compiled | |
| 1104 // <1, 1> : compiled but queue bit not cleared | |
| 1105 // <1, 0> : compiled and queue bit cleared | |
| 1106 // Because we first check the queue bits then check the result bits, | |
| 1107 // we are assured that we cannot introduce a duplicate task. | |
| 1108 // Note that if we did the tests in the reverse order (i.e. check | |
| 1109 // result then check queued bit), we could get the result bit before | |
| 1110 // the compilation completed, and the queue bit after the compilation | |
| 1111 // completed, and end up introducing a "duplicate" (redundant) task. | |
| 1112 // In that case, the compiler thread should first check if a method | |
| 1113 // has already been compiled before trying to compile it. | |
| 1114 // NOTE: in the event that there are multiple compiler threads and | |
| 1115 // there is de-optimization/recompilation, things will get hairy, | |
| 1116 // and in that case it's best to protect both the testing (here) of | |
| 1117 // these bits, and their updating (here and elsewhere) under a | |
| 1118 // common lock. | |
|
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1119 /*task = create_compile_task(queue, |
| 0 | 1120 compile_id, method, |
| 1121 osr_bci, comp_level, | |
| 1122 hot_method, hot_count, comment, | |
|
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1123 blocking);*/ |
| 0 | 1124 } |
| 1125 | |
|
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1126 if (!JavaThread::current()->is_compiling()) { |
|
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1127 method->set_queued_for_compilation(); |
|
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1128 GraalCompiler::instance()->compile_method(method, osr_bci, blocking); |
|
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|
1129 } else { |
|
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|
1130 // Recursive compile request => ignore. |
|
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1131 } |
|
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|
1132 |
|
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1133 /*if (blocking) { |
| 0 | 1134 wait_for_completion(task); |
|
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|
1135 }*/ |
| 0 | 1136 } |
| 1137 | |
| 1138 | |
| 1139 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
| 1783 | 1140 int comp_level, |
| 0 | 1141 methodHandle hot_method, int hot_count, |
| 1142 const char* comment, TRAPS) { | |
| 1143 // make sure arguments make sense | |
| 1144 assert(method->method_holder()->klass_part()->oop_is_instance(), "not an instance method"); | |
| 1145 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); | |
| 1146 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
| 1147 assert(!instanceKlass::cast(method->method_holder())->is_not_initialized(), "method holder must be initialized"); | |
| 1148 | |
| 1783 | 1149 if (!TieredCompilation) { |
| 1150 comp_level = CompLevel_highest_tier; | |
| 0 | 1151 } |
| 1152 | |
| 1153 // return quickly if possible | |
| 1154 | |
| 1155 // lock, make sure that the compilation | |
| 1156 // isn't prohibited in a straightforward way. | |
| 1157 | |
| 1158 if (compiler(comp_level) == NULL || compilation_is_prohibited(method, osr_bci, comp_level)) { | |
| 1159 return NULL; | |
| 1160 } | |
| 1161 | |
| 1162 if (osr_bci == InvocationEntryBci) { | |
| 1163 // standard compilation | |
| 1164 nmethod* method_code = method->code(); | |
| 1783 | 1165 if (method_code != NULL) { |
| 1166 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1167 return method_code; | |
| 1168 } | |
| 0 | 1169 } |
| 1170 if (method->is_not_compilable(comp_level)) return NULL; | |
| 1202 | 1171 |
|
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6935466: new CodeCache flushing code is not guarded by the flag
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|
1172 if (UseCodeCacheFlushing) { |
|
428a9c451986
6935466: new CodeCache flushing code is not guarded by the flag
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|
1173 nmethod* saved = CodeCache::find_and_remove_saved_code(method()); |
|
428a9c451986
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|
1174 if (saved != NULL) { |
|
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1175 method->set_code(method, saved); |
|
428a9c451986
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diff
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|
1176 return saved; |
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|
1177 } |
| 1202 | 1178 } |
| 1179 | |
| 0 | 1180 } else { |
| 1181 // osr compilation | |
| 1182 #ifndef TIERED | |
| 1183 // seems like an assert of dubious value | |
| 1783 | 1184 assert(comp_level == CompLevel_highest_tier, |
| 0 | 1185 "all OSR compiles are assumed to be at a single compilation lavel"); |
| 1186 #endif // TIERED | |
| 1783 | 1187 // We accept a higher level osr method |
| 1188 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1189 if (nm != NULL) return nm; |
| 1190 if (method->is_not_osr_compilable()) return NULL; | |
| 1191 } | |
| 1192 | |
| 1193 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
| 1194 // some prerequisites that are compiler specific | |
| 2447 | 1195 if (compiler(comp_level)->is_c2() || compiler(comp_level)->is_shark()) { |
| 0 | 1196 method->constants()->resolve_string_constants(CHECK_0); |
| 1197 // Resolve all classes seen in the signature of the method | |
| 1198 // we are compiling. | |
| 1199 methodOopDesc::load_signature_classes(method, CHECK_0); | |
| 1200 } | |
| 1201 | |
| 1202 // If the method is native, do the lookup in the thread requesting | |
| 1203 // the compilation. Native lookups can load code, which is not | |
| 1204 // permitted during compilation. | |
| 1205 // | |
| 1206 // Note: A native method implies non-osr compilation which is | |
| 1207 // checked with an assertion at the entry of this method. | |
| 1208 if (method->is_native()) { | |
| 1209 bool in_base_library; | |
| 1210 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
| 1211 if (HAS_PENDING_EXCEPTION) { | |
| 1212 // In case of an exception looking up the method, we just forget | |
| 1213 // about it. The interpreter will kick-in and throw the exception. | |
| 1214 method->set_not_compilable(); // implies is_not_osr_compilable() | |
| 1215 CLEAR_PENDING_EXCEPTION; | |
| 1216 return NULL; | |
| 1217 } | |
| 1218 assert(method->has_native_function(), "must have native code by now"); | |
| 1219 } | |
| 1220 | |
| 1221 // RedefineClasses() has replaced this method; just return | |
| 1222 if (method->is_old()) { | |
| 1223 return NULL; | |
| 1224 } | |
| 1225 | |
| 1226 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
| 1227 // a lock the compiling thread can not acquire. Prefetch it here. | |
| 1228 if (JvmtiExport::should_post_compiled_method_load()) { | |
| 1229 method->jmethod_id(); | |
| 1230 } | |
| 1231 | |
| 1202 | 1232 // If the compiler is shut off due to code cache flushing or otherwise, |
| 1233 // fail out now so blocking compiles dont hang the java thread | |
| 1234 if (!should_compile_new_jobs() || (UseCodeCacheFlushing && CodeCache::needs_flushing())) { | |
| 1783 | 1235 CompilationPolicy::policy()->delay_compilation(method()); |
| 1202 | 1236 return NULL; |
| 1237 } | |
| 1238 | |
| 0 | 1239 // do the compilation |
| 1240 if (method->is_native()) { | |
| 1241 if (!PreferInterpreterNativeStubs) { | |
|
2405
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|
1242 // Acquire our lock. |
|
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parents:
2403
diff
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|
1243 int compile_id; |
|
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twisti
parents:
2403
diff
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|
1244 { |
|
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2403
diff
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|
1245 MutexLocker locker(MethodCompileQueue_lock, THREAD); |
|
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2403
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1246 compile_id = assign_compile_id(method, standard_entry_bci); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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|
1247 } |
|
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|
1248 (void) AdapterHandlerLibrary::create_native_wrapper(method, compile_id); |
| 0 | 1249 } else { |
| 1250 return NULL; | |
| 1251 } | |
| 1252 } else { | |
| 1253 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, CHECK_0); | |
| 1254 } | |
| 1255 | |
| 1256 // return requested nmethod | |
| 1783 | 1257 // We accept a higher level osr method |
| 1258 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1259 } |
| 1260 | |
| 1261 | |
| 1262 // ------------------------------------------------------------------ | |
| 1263 // CompileBroker::compilation_is_complete | |
| 1264 // | |
| 1265 // See if compilation of this method is already complete. | |
| 1266 bool CompileBroker::compilation_is_complete(methodHandle method, | |
| 1267 int osr_bci, | |
| 1268 int comp_level) { | |
| 1269 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1270 if (is_osr) { | |
| 1271 if (method->is_not_osr_compilable()) { | |
| 1272 return true; | |
| 1273 } else { | |
| 1783 | 1274 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
| 0 | 1275 return (result != NULL); |
| 1276 } | |
| 1277 } else { | |
| 1278 if (method->is_not_compilable(comp_level)) { | |
| 1279 return true; | |
| 1280 } else { | |
| 1281 nmethod* result = method->code(); | |
| 1282 if (result == NULL) return false; | |
| 1783 | 1283 return comp_level == result->comp_level(); |
| 0 | 1284 } |
| 1285 } | |
| 1286 } | |
| 1287 | |
| 1288 | |
| 1289 // ------------------------------------------------------------------ | |
| 1290 // CompileBroker::compilation_is_in_queue | |
| 1291 // | |
| 1292 // See if this compilation is already requested. | |
| 1293 // | |
| 1294 // Implementation note: there is only a single "is in queue" bit | |
| 1295 // for each method. This means that the check below is overly | |
| 1296 // conservative in the sense that an osr compilation in the queue | |
| 1297 // will block a normal compilation from entering the queue (and vice | |
| 1298 // versa). This can be remedied by a full queue search to disambiguate | |
| 1299 // cases. If it is deemed profitible, this may be done. | |
| 1300 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
| 1783 | 1301 int osr_bci) { |
| 0 | 1302 return method->queued_for_compilation(); |
| 1303 } | |
| 1304 | |
| 1305 // ------------------------------------------------------------------ | |
| 1306 // CompileBroker::compilation_is_prohibited | |
| 1307 // | |
| 1308 // See if this compilation is not allowed. | |
| 1309 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
| 1310 bool is_native = method->is_native(); | |
| 1311 // Some compilers may not support the compilation of natives. | |
| 1312 if (is_native && | |
| 1313 (!CICompileNatives || !compiler(comp_level)->supports_native())) { | |
| 1783 | 1314 method->set_not_compilable_quietly(comp_level); |
| 0 | 1315 return true; |
| 1316 } | |
| 1317 | |
| 1318 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1319 // Some compilers may not support on stack replacement. | |
| 1320 if (is_osr && | |
| 1321 (!CICompileOSR || !compiler(comp_level)->supports_osr())) { | |
| 1322 method->set_not_osr_compilable(); | |
| 1323 return true; | |
| 1324 } | |
| 1325 | |
| 1326 // The method may be explicitly excluded by the user. | |
| 1327 bool quietly; | |
| 1328 if (CompilerOracle::should_exclude(method, quietly)) { | |
| 1329 if (!quietly) { | |
| 1330 // This does not happen quietly... | |
| 1331 ResourceMark rm; | |
| 1332 tty->print("### Excluding %s:%s", | |
| 1333 method->is_native() ? "generation of native wrapper" : "compile", | |
| 1334 (method->is_static() ? " static" : "")); | |
| 1335 method->print_short_name(tty); | |
| 1336 tty->cr(); | |
| 1337 } | |
|
1208
cef333a48af6
6923043: failed nightly tests which use -XX:+PrintCompilation -Xcomp -XX:CompileOnly
kvn
parents:
1202
diff
changeset
|
1338 method->set_not_compilable_quietly(); |
| 0 | 1339 } |
| 1340 | |
| 1341 return false; | |
| 1342 } | |
| 1343 | |
| 1344 | |
| 1345 // ------------------------------------------------------------------ | |
| 1346 // CompileBroker::assign_compile_id | |
| 1347 // | |
| 1348 // Assign a serialized id number to this compilation request. If the | |
| 1349 // number falls out of the allowed range, return a 0. OSR | |
| 1350 // compilations may be numbered separately from regular compilations | |
| 1351 // if certain debugging flags are used. | |
| 1352 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
| 1783 | 1353 assert(MethodCompileQueue_lock->owner() == Thread::current(), |
| 0 | 1354 "must hold the compilation queue lock"); |
| 1355 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1356 uint id; | |
| 1357 if (CICountOSR && is_osr) { | |
| 1358 id = ++_osr_compilation_id; | |
| 1359 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
| 1360 return id; | |
| 1361 } | |
| 1362 } else { | |
| 1363 id = ++_compilation_id; | |
| 1364 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
| 1365 return id; | |
| 1366 } | |
| 1367 } | |
| 1368 | |
| 1369 // Method was not in the appropriate compilation range. | |
|
1208
cef333a48af6
6923043: failed nightly tests which use -XX:+PrintCompilation -Xcomp -XX:CompileOnly
kvn
parents:
1202
diff
changeset
|
1370 method->set_not_compilable_quietly(); |
| 0 | 1371 return 0; |
| 1372 } | |
| 1373 | |
| 1374 | |
| 1375 // ------------------------------------------------------------------ | |
| 1376 // CompileBroker::is_compile_blocking | |
| 1377 // | |
| 1378 // Should the current thread be blocked until this compilation request | |
| 1379 // has been fulfilled? | |
| 1380 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
|
3294
86ebb26bcdeb
7037756: Deadlock in compiler thread similiar to 6789220
johnc
parents:
2482
diff
changeset
|
1381 assert(!instanceRefKlass::owns_pending_list_lock(JavaThread::current()), "possible deadlock"); |
|
86ebb26bcdeb
7037756: Deadlock in compiler thread similiar to 6789220
johnc
parents:
2482
diff
changeset
|
1382 return !BackgroundCompilation; |
| 0 | 1383 } |
| 1384 | |
| 1385 | |
| 1386 // ------------------------------------------------------------------ | |
| 1387 // CompileBroker::preload_classes | |
| 1388 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
| 1389 // Move this code over from c1_Compiler.cpp | |
| 1390 ShouldNotReachHere(); | |
| 1391 } | |
| 1392 | |
| 1393 | |
| 1394 // ------------------------------------------------------------------ | |
| 1395 // CompileBroker::create_compile_task | |
| 1396 // | |
| 1397 // Create a CompileTask object representing the current request for | |
| 1398 // compilation. Add this task to the queue. | |
| 1399 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
| 1400 int compile_id, | |
| 1401 methodHandle method, | |
| 1402 int osr_bci, | |
| 1403 int comp_level, | |
| 1404 methodHandle hot_method, | |
| 1405 int hot_count, | |
| 1406 const char* comment, | |
| 1407 bool blocking) { | |
| 1408 CompileTask* new_task = allocate_task(); | |
| 1409 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
| 1410 hot_method, hot_count, comment, | |
| 1411 blocking); | |
| 1412 queue->add(new_task); | |
| 1413 return new_task; | |
| 1414 } | |
| 1415 | |
| 1416 | |
| 1417 // ------------------------------------------------------------------ | |
| 1418 // CompileBroker::allocate_task | |
| 1419 // | |
| 1420 // Allocate a CompileTask, from the free list if possible. | |
| 1421 CompileTask* CompileBroker::allocate_task() { | |
| 1422 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1423 CompileTask* task = NULL; | |
| 1424 if (_task_free_list != NULL) { | |
| 1425 task = _task_free_list; | |
| 1426 _task_free_list = task->next(); | |
| 1427 task->set_next(NULL); | |
| 1428 } else { | |
| 1429 task = new CompileTask(); | |
| 1430 task->set_next(NULL); | |
| 1431 } | |
| 1432 return task; | |
| 1433 } | |
| 1434 | |
| 1435 | |
| 1436 // ------------------------------------------------------------------ | |
| 1437 // CompileBroker::free_task | |
| 1438 // | |
| 1439 // Add a task to the free list. | |
| 1440 void CompileBroker::free_task(CompileTask* task) { | |
| 1441 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1442 task->free(); | |
| 1443 task->set_next(_task_free_list); | |
| 1444 _task_free_list = task; | |
| 1445 } | |
| 1446 | |
| 1447 | |
| 1448 // ------------------------------------------------------------------ | |
| 1449 // CompileBroker::wait_for_completion | |
| 1450 // | |
| 1451 // Wait for the given method CompileTask to complete. | |
| 1452 void CompileBroker::wait_for_completion(CompileTask* task) { | |
| 1453 if (CIPrintCompileQueue) { | |
| 1454 tty->print_cr("BLOCKING FOR COMPILE"); | |
| 1455 } | |
| 1456 | |
| 1457 assert(task->is_blocking(), "can only wait on blocking task"); | |
| 1458 | |
| 1459 JavaThread *thread = JavaThread::current(); | |
| 1460 thread->set_blocked_on_compilation(true); | |
| 1461 | |
| 1462 methodHandle method(thread, | |
| 1463 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1464 { | |
| 1465 MutexLocker waiter(task->lock(), thread); | |
| 1466 | |
| 1467 while (!task->is_complete()) | |
| 1468 task->lock()->wait(); | |
| 1469 } | |
| 1470 // It is harmless to check this status without the lock, because | |
| 1471 // completion is a stable property (until the task object is recycled). | |
| 1472 assert(task->is_complete(), "Compilation should have completed"); | |
| 1473 assert(task->code_handle() == NULL, "must be reset"); | |
| 1474 | |
| 1475 thread->set_blocked_on_compilation(false); | |
| 1476 | |
| 1477 // By convention, the waiter is responsible for recycling a | |
| 1478 // blocking CompileTask. Since there is only one waiter ever | |
| 1479 // waiting on a CompileTask, we know that no one else will | |
| 1480 // be using this CompileTask; we can free it. | |
| 1481 free_task(task); | |
| 1482 } | |
| 1483 | |
| 1484 // ------------------------------------------------------------------ | |
| 1485 // CompileBroker::compiler_thread_loop | |
| 1486 // | |
| 1487 // The main loop run by a CompilerThread. | |
| 1488 void CompileBroker::compiler_thread_loop() { | |
| 1489 CompilerThread* thread = CompilerThread::current(); | |
| 1490 CompileQueue* queue = thread->queue(); | |
| 1491 | |
| 1492 // For the thread that initializes the ciObjectFactory | |
| 1493 // this resource mark holds all the shared objects | |
| 1494 ResourceMark rm; | |
| 1495 | |
| 1496 // First thread to get here will initialize the compiler interface | |
| 1497 | |
| 1498 if (!ciObjectFactory::is_initialized()) { | |
| 1499 ASSERT_IN_VM; | |
| 1500 MutexLocker only_one (CompileThread_lock, thread); | |
| 1501 if (!ciObjectFactory::is_initialized()) { | |
| 1502 ciObjectFactory::initialize(); | |
| 1503 } | |
| 1504 } | |
| 1505 | |
| 1506 // Open a log. | |
| 1507 if (LogCompilation) { | |
| 1508 init_compiler_thread_log(); | |
| 1509 } | |
| 1510 CompileLog* log = thread->log(); | |
| 1511 if (log != NULL) { | |
| 1512 log->begin_elem("start_compile_thread thread='" UINTX_FORMAT "' process='%d'", | |
| 1513 os::current_thread_id(), | |
| 1514 os::current_process_id()); | |
| 1515 log->stamp(); | |
| 1516 log->end_elem(); | |
| 1517 } | |
| 1518 | |
| 1519 while (true) { | |
| 1520 { | |
|
1454
7cf1952ec5fb
Added flag -XX:BootstrapC1X that precompiles Object::<init> and then every method in the compilation queue until it is empty.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1434
diff
changeset
|
1521 |
| 0 | 1522 // We need this HandleMark to avoid leaking VM handles. |
| 1523 HandleMark hm(thread); | |
| 1202 | 1524 |
|
2353
1c0cf339481b
7025742: Can not use CodeCache::unallocated_capacity() with fragmented CodeCache
kvn
parents:
2260
diff
changeset
|
1525 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) { |
| 1202 | 1526 // the code cache is really full |
| 1527 handle_full_code_cache(); | |
| 1528 } else if (UseCodeCacheFlushing && CodeCache::needs_flushing()) { | |
| 1529 // Attempt to start cleaning the code cache while there is still a little headroom | |
| 1530 NMethodSweeper::handle_full_code_cache(false); | |
| 0 | 1531 } |
| 1532 | |
|
3619
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1533 CompileTask* task = queue->get(_poll_java_queue); |
| 0 | 1534 |
|
3619
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1535 if (task != NULL) { |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1536 // Give compiler threads an extra quanta. They tend to be bursty and |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1537 // this helps the compiler to finish up the job. |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1538 if( CompilerThreadHintNoPreempt ) |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1539 os::hint_no_preempt(); |
| 0 | 1540 |
|
3619
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1541 // trace per thread time and compile statistics |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1542 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1543 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); |
| 0 | 1544 |
|
3619
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1545 // Assign the task to the current thread. Mark this compilation |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1546 // thread as active for the profiler. |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1547 CompileTaskWrapper ctw(task); |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1548 nmethodLocker result_handle; // (handle for the nmethod produced by this task) |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1549 task->set_code_handle(&result_handle); |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1550 methodHandle method(thread, |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1551 (methodOop)JNIHandles::resolve(task->method_handle())); |
| 0 | 1552 |
|
3619
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1553 // Never compile a method if breakpoints are present in it |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1554 if (method()->number_of_breakpoints() == 0) { |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1555 // Compile the method. |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1556 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1557 #ifdef COMPILER1 |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1558 // Allow repeating compilations for the purpose of benchmarking |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1559 // compile speed. This is not useful for customers. |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1560 if (CompilationRepeat != 0) { |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1561 int compile_count = CompilationRepeat; |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1562 while (compile_count > 0) { |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1563 invoke_compiler_on_method(task); |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1564 nmethod* nm = method->code(); |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1565 if (nm != NULL) { |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1566 nm->make_zombie(); |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1567 method->clear_code(); |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1568 } |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1569 compile_count--; |
| 0 | 1570 } |
| 1571 } | |
|
3619
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1572 #endif /* COMPILER1 */ |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1573 invoke_compiler_on_method(task); |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1574 } else { |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1575 // After compilation is disabled, remove remaining methods from queue |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1576 method->clear_queued_for_compilation(); |
| 0 | 1577 } |
|
3619
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1578 } |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1579 } |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1580 |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1581 if (_poll_java_queue) { |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1582 _poll_java_queue = false; |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1583 if (UseGraal) { |
|
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1584 GraalCompiler::instance()->poll_java_queue(); |
| 0 | 1585 } |
| 1586 } | |
| 1587 } | |
| 1588 } | |
| 1589 } | |
| 1590 | |
| 1591 | |
| 1592 // ------------------------------------------------------------------ | |
| 1593 // CompileBroker::init_compiler_thread_log | |
| 1594 // | |
| 1595 // Set up state required by +LogCompilation. | |
| 1596 void CompileBroker::init_compiler_thread_log() { | |
| 1597 CompilerThread* thread = CompilerThread::current(); | |
| 1598 char fileBuf[4*K]; | |
| 1599 FILE* fp = NULL; | |
| 1600 char* file = NULL; | |
| 1601 intx thread_id = os::current_thread_id(); | |
| 1602 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
| 1603 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
|
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1604 if (dir == NULL) { |
|
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6938627: Make temporary directory use property java.io.tmpdir when specified
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|
1605 jio_snprintf(fileBuf, sizeof(fileBuf), "hs_c" UINTX_FORMAT "_pid%u.log", |
|
a2ea687fdc7c
6938627: Make temporary directory use property java.io.tmpdir when specified
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diff
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|
1606 thread_id, os::current_process_id()); |
|
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diff
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|
1607 } else { |
|
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diff
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|
1608 jio_snprintf(fileBuf, sizeof(fileBuf), |
|
a2ea687fdc7c
6938627: Make temporary directory use property java.io.tmpdir when specified
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diff
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|
1609 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
|
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6938627: Make temporary directory use property java.io.tmpdir when specified
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parents:
1300
diff
changeset
|
1610 os::file_separator(), thread_id, os::current_process_id()); |
|
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6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
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1300
diff
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|
1611 } |
| 0 | 1612 fp = fopen(fileBuf, "at"); |
| 1613 if (fp != NULL) { | |
| 1614 file = NEW_C_HEAP_ARRAY(char, strlen(fileBuf)+1); | |
| 1615 strcpy(file, fileBuf); | |
| 1616 break; | |
| 1617 } | |
| 1618 } | |
| 1619 if (fp == NULL) { | |
| 1620 warning("Cannot open log file: %s", fileBuf); | |
| 1621 } else { | |
| 1622 if (LogCompilation && Verbose) | |
| 1623 tty->print_cr("Opening compilation log %s", file); | |
| 1624 CompileLog* log = new(ResourceObj::C_HEAP) CompileLog(file, fp, thread_id); | |
| 1625 thread->init_log(log); | |
| 1626 | |
| 1627 if (xtty != NULL) { | |
| 1628 ttyLocker ttyl; | |
| 1629 | |
| 1630 // Record any per thread log files | |
| 1631 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file); | |
| 1632 } | |
| 1633 } | |
| 1634 } | |
| 1635 | |
| 1636 // ------------------------------------------------------------------ | |
| 1637 // CompileBroker::set_should_block | |
| 1638 // | |
| 1639 // Set _should_block. | |
| 1640 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
| 1641 void CompileBroker::set_should_block() { | |
| 1642 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
| 1643 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
| 1644 #ifndef PRODUCT | |
| 1645 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1646 tty->print_cr("notifying compiler thread pool to block"); | |
| 1647 #endif | |
| 1648 _should_block = true; | |
| 1649 } | |
| 1650 | |
| 1651 // ------------------------------------------------------------------ | |
| 1652 // CompileBroker::maybe_block | |
| 1653 // | |
| 1654 // Call this from the compiler at convenient points, to poll for _should_block. | |
| 1655 void CompileBroker::maybe_block() { | |
| 1656 if (_should_block) { | |
| 1657 #ifndef PRODUCT | |
| 1658 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1659 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
| 1660 #endif | |
| 1661 ThreadInVMfromNative tivfn(JavaThread::current()); | |
| 1662 } | |
| 1663 } | |
| 1664 | |
| 1665 | |
| 1666 // ------------------------------------------------------------------ | |
| 1667 // CompileBroker::invoke_compiler_on_method | |
| 1668 // | |
| 1669 // Compile a method. | |
| 1670 // | |
| 1671 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
| 1672 if (PrintCompilation) { | |
| 1673 ResourceMark rm; | |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
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1433
diff
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|
1674 tty->print("%s: ", compiler(task->comp_level())->name()); |
| 0 | 1675 task->print_line(); |
| 1676 } | |
| 1677 elapsedTimer time; | |
| 1678 | |
| 1679 CompilerThread* thread = CompilerThread::current(); | |
| 1680 ResourceMark rm(thread); | |
| 1681 | |
| 1682 // Common flags. | |
| 1683 uint compile_id = task->compile_id(); | |
| 1684 int osr_bci = task->osr_bci(); | |
| 1685 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1686 bool should_log = (thread->log() != NULL); | |
| 1687 bool should_break = false; | |
| 1688 { | |
| 1689 // create the handle inside it's own block so it can't | |
| 1690 // accidentally be referenced once the thread transitions to | |
| 1691 // native. The NoHandleMark before the transition should catch | |
| 1692 // any cases where this occurs in the future. | |
| 1693 methodHandle method(thread, | |
| 1694 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1695 should_break = check_break_at(method, compile_id, is_osr); | |
| 1696 if (should_log && !CompilerOracle::should_log(method)) { | |
| 1697 should_log = false; | |
| 1698 } | |
| 1699 assert(!method->is_native(), "no longer compile natives"); | |
| 1700 | |
| 1701 // Save information about this method in case of failure. | |
| 1702 set_last_compile(thread, method, is_osr, task->comp_level()); | |
| 1703 | |
| 1704 DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task->comp_level()), method); | |
| 1705 } | |
| 1706 | |
| 1707 // Allocate a new set of JNI handles. | |
| 1708 push_jni_handle_block(); | |
| 1709 jobject target_handle = JNIHandles::make_local(thread, JNIHandles::resolve(task->method_handle())); | |
|
1939
b7fb5f1e0747
Two new flags: -XX:MaxCompilationID (to enable debugging binary search for problematic method) and -XX:C1XBailoutIsFatal.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1931
diff
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|
1710 int compilable = ciEnv::MethodCompilable_never; |
|
b7fb5f1e0747
Two new flags: -XX:MaxCompilationID (to enable debugging binary search for problematic method) and -XX:C1XBailoutIsFatal.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1931
diff
changeset
|
1711 if (MaxCompilationID == -1 || compile_id <= (uint)MaxCompilationID) { |
|
b7fb5f1e0747
Two new flags: -XX:MaxCompilationID (to enable debugging binary search for problematic method) and -XX:C1XBailoutIsFatal.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
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1931
diff
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|
1712 compilable = ciEnv::MethodCompilable; |
| 0 | 1713 int system_dictionary_modification_counter; |
| 1714 { | |
| 1715 MutexLocker locker(Compile_lock, thread); | |
| 1716 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
| 1717 } | |
| 1718 | |
|
1406
35069ca331f2
Hooked C1XCompiler class into the system.
Thomas Wuerthinger <thomas.wuerthinger@gmail.com>
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1353
diff
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|
1719 // (tw) Check if we may do this? |
|
1478
5571b97fc1ec
More JNI global handle clean ups.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
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|
1720 // NoHandleMark nhm; |
| 0 | 1721 ThreadToNativeFromVM ttn(thread); |
| 1722 | |
| 1723 ciEnv ci_env(task, system_dictionary_modification_counter); | |
| 1724 if (should_break) { | |
| 1725 ci_env.set_break_at_compile(true); | |
| 1726 } | |
| 1727 if (should_log) { | |
| 1728 ci_env.set_log(thread->log()); | |
| 1729 } | |
| 1730 assert(thread->env() == &ci_env, "set by ci_env"); | |
| 1731 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
| 1732 | |
|
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diff
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|
1733 // Cache Jvmti state |
|
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6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
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|
1734 ci_env.cache_jvmti_state(); |
|
c96bf21b756f
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diff
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|
1735 |
|
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|
1736 // Cache DTrace flags |
|
c96bf21b756f
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diff
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|
1737 ci_env.cache_dtrace_flags(); |
|
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diff
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|
1738 |
| 0 | 1739 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
| 1740 | |
| 1741 TraceTime t1("compilation", &time); | |
| 1742 | |
| 1743 compiler(task->comp_level())->compile_method(&ci_env, target, osr_bci); | |
| 1744 | |
|
3645
9c2c0a182f13
Ignore that task code field is not set.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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diff
changeset
|
1745 // TODO (tw): Check if this is OK. |
|
9c2c0a182f13
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff
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|
1746 /*if (!ci_env.failing() && task->code() == NULL) { |
| 0 | 1747 //assert(false, "compiler should always document failure"); |
| 1748 // The compiler elected, without comment, not to register a result. | |
| 1749 // Do not attempt further compilations of this method. | |
|
1964
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1783
diff
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|
1750 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
|
3645
9c2c0a182f13
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff
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|
1751 }*/ |
| 0 | 1752 |
| 1753 if (ci_env.failing()) { | |
| 1754 // Copy this bit to the enclosing block: | |
| 1755 compilable = ci_env.compilable(); | |
| 1756 if (PrintCompilation) { | |
| 1757 const char* reason = ci_env.failure_reason(); | |
| 1758 if (compilable == ciEnv::MethodCompilable_not_at_tier) { | |
| 1759 tty->print_cr("%3d COMPILE SKIPPED: %s (retry at different tier)", compile_id, reason); | |
|
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diff
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|
1760 } else if (compilable == ciEnv::MethodCompilable_never) { |
| 0 | 1761 tty->print_cr("%3d COMPILE SKIPPED: %s (not retryable)", compile_id, reason); |
| 1762 } else if (compilable == ciEnv::MethodCompilable) { | |
| 1763 tty->print_cr("%3d COMPILE SKIPPED: %s", compile_id, reason); | |
| 1764 } | |
| 1765 } | |
| 1766 } else { | |
| 1767 task->mark_success(); | |
| 1768 task->set_num_inlined_bytecodes(ci_env.num_inlined_bytecodes()); | |
| 1769 } | |
| 1770 } | |
| 1771 pop_jni_handle_block(); | |
| 1772 | |
| 1773 methodHandle method(thread, | |
| 1774 (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1775 | |
| 1776 DTRACE_METHOD_COMPILE_END_PROBE(compiler(task->comp_level()), method, task->is_success()); | |
| 1777 | |
| 1778 collect_statistics(thread, time, task); | |
| 1779 | |
| 1780 if (compilable == ciEnv::MethodCompilable_never) { | |
| 1781 if (is_osr) { | |
| 1782 method->set_not_osr_compilable(); | |
| 1783 } else { | |
|
1208
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diff
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|
1784 method->set_not_compilable_quietly(); |
| 0 | 1785 } |
| 1786 } else if (compilable == ciEnv::MethodCompilable_not_at_tier) { | |
|
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diff
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|
1787 method->set_not_compilable_quietly(task->comp_level()); |
| 0 | 1788 } |
| 1789 | |
| 1790 // Note that the queued_for_compilation bits are cleared without | |
| 1791 // protection of a mutex. [They were set by the requester thread, | |
| 1792 // when adding the task to the complie queue -- at which time the | |
| 1793 // compile queue lock was held. Subsequently, we acquired the compile | |
| 1794 // queue lock to get this task off the compile queue; thus (to belabour | |
| 1795 // the point somewhat) our clearing of the bits must be occurring | |
| 1796 // only after the setting of the bits. See also 14012000 above. | |
| 1797 method->clear_queued_for_compilation(); | |
| 1798 | |
| 1799 #ifdef ASSERT | |
| 1800 if (CollectedHeap::fired_fake_oom()) { | |
| 1801 // The current compile received a fake OOM during compilation so | |
| 1802 // go ahead and exit the VM since the test apparently succeeded | |
| 1803 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
| 1804 vm_exit(0); | |
| 1805 } | |
| 1806 #endif | |
| 1807 } | |
| 1808 | |
| 1809 // ------------------------------------------------------------------ | |
| 1202 | 1810 // CompileBroker::handle_full_code_cache |
| 1811 // | |
| 1812 // The CodeCache is full. Print out warning and disable compilation or | |
| 1813 // try code cache cleaning so compilation can continue later. | |
| 1814 void CompileBroker::handle_full_code_cache() { | |
| 1815 UseInterpreter = true; | |
| 1816 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
|
1728
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diff
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|
1817 if (xtty != NULL) { |
|
2482
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diff
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|
1818 stringStream s; |
|
dbccacb79c63
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diff
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|
1819 // Dump code cache state into a buffer before locking the tty, |
|
dbccacb79c63
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diff
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|
1820 // because log_state() will use locks causing lock conflicts. |
|
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|
1821 CodeCache::log_state(&s); |
|
dbccacb79c63
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diff
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|
1822 // Lock to prevent tearing |
|
dbccacb79c63
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diff
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|
1823 ttyLocker ttyl; |
|
1728
a62d332029cf
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parents:
1692
diff
changeset
|
1824 xtty->begin_elem("code_cache_full"); |
|
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diff
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|
1825 xtty->print(s.as_string()); |
|
1728
a62d332029cf
6976372: # assert(_owner == Thread::current()) failed: invariant
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diff
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|
1826 xtty->stamp(); |
|
a62d332029cf
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parents:
1692
diff
changeset
|
1827 xtty->end_elem(); |
| 1202 | 1828 } |
|
1578
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diff
changeset
|
1829 warning("CodeCache is full. Compiler has been disabled."); |
|
ca3dceda776c
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parents:
1538
diff
changeset
|
1830 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
|
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|
1831 CodeCache::print_bounds(tty); |
|
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diff
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|
1832 #ifndef PRODUCT |
| 1202 | 1833 if (CompileTheWorld || ExitOnFullCodeCache) { |
| 1834 before_exit(JavaThread::current()); | |
| 1835 exit_globals(); // will delete tty | |
| 1836 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
| 1837 } | |
|
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diff
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|
1838 #endif |
| 1202 | 1839 if (UseCodeCacheFlushing) { |
| 1840 NMethodSweeper::handle_full_code_cache(true); | |
| 1841 } else { | |
| 1842 UseCompiler = false; | |
| 1843 AlwaysCompileLoopMethods = false; | |
| 1844 } | |
| 1845 } | |
| 1846 } | |
| 1847 | |
| 1848 // ------------------------------------------------------------------ | |
| 0 | 1849 // CompileBroker::set_last_compile |
| 1850 // | |
| 1851 // Record this compilation for debugging purposes. | |
| 1852 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
| 1853 ResourceMark rm; | |
| 1854 char* method_name = method->name()->as_C_string(); | |
| 1855 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
| 1856 char current_method[CompilerCounters::cmname_buffer_length]; | |
| 1857 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
| 1858 | |
| 1859 if (UsePerfData) { | |
| 1860 const char* class_name = method->method_holder()->klass_part()->name()->as_C_string(); | |
| 1861 | |
| 1862 size_t s1len = strlen(class_name); | |
| 1863 size_t s2len = strlen(method_name); | |
| 1864 | |
| 1865 // check if we need to truncate the string | |
| 1866 if (s1len + s2len + 2 > maxLen) { | |
| 1867 | |
| 1868 // the strategy is to lop off the leading characters of the | |
| 1869 // class name and the trailing characters of the method name. | |
| 1870 | |
| 1871 if (s2len + 2 > maxLen) { | |
| 1872 // lop of the entire class name string, let snprintf handle | |
| 1873 // truncation of the method name. | |
| 1874 class_name += s1len; // null string | |
| 1875 } | |
| 1876 else { | |
| 1877 // lop off the extra characters from the front of the class name | |
| 1878 class_name += ((s1len + s2len + 2) - maxLen); | |
| 1879 } | |
| 1880 } | |
| 1881 | |
| 1882 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
| 1883 } | |
| 1884 | |
| 1885 if (CICountOSR && is_osr) { | |
| 1886 _last_compile_type = osr_compile; | |
| 1887 } else { | |
| 1888 _last_compile_type = normal_compile; | |
| 1889 } | |
| 1890 _last_compile_level = comp_level; | |
| 1891 | |
| 1892 if (UsePerfData) { | |
| 1893 CompilerCounters* counters = thread->counters(); | |
| 1894 counters->set_current_method(current_method); | |
| 1895 counters->set_compile_type((jlong)_last_compile_type); | |
| 1896 } | |
| 1897 } | |
| 1898 | |
| 1899 | |
| 1900 // ------------------------------------------------------------------ | |
| 1901 // CompileBroker::push_jni_handle_block | |
| 1902 // | |
| 1903 // Push on a new block of JNI handles. | |
| 1904 void CompileBroker::push_jni_handle_block() { | |
| 1905 JavaThread* thread = JavaThread::current(); | |
| 1906 | |
| 1907 // Allocate a new block for JNI handles. | |
| 1908 // Inlined code from jni_PushLocalFrame() | |
| 1909 JNIHandleBlock* java_handles = thread->active_handles(); | |
| 1910 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
| 1911 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
| 1912 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
| 1913 thread->set_active_handles(compile_handles); | |
| 1914 } | |
| 1915 | |
| 1916 | |
| 1917 // ------------------------------------------------------------------ | |
| 1918 // CompileBroker::pop_jni_handle_block | |
| 1919 // | |
| 1920 // Pop off the current block of JNI handles. | |
| 1921 void CompileBroker::pop_jni_handle_block() { | |
| 1922 JavaThread* thread = JavaThread::current(); | |
| 1923 | |
| 1924 // Release our JNI handle block | |
| 1925 JNIHandleBlock* compile_handles = thread->active_handles(); | |
| 1926 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
| 1927 thread->set_active_handles(java_handles); | |
| 1928 compile_handles->set_pop_frame_link(NULL); | |
| 1929 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
| 1930 } | |
| 1931 | |
| 1932 | |
| 1933 // ------------------------------------------------------------------ | |
| 1934 // CompileBroker::check_break_at | |
| 1935 // | |
| 1936 // Should the compilation break at the current compilation. | |
| 1937 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
| 1938 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
| 1939 return true; | |
| 1940 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
| 1941 return true; | |
| 1942 } else { | |
| 1943 return (compile_id == CIBreakAt); | |
| 1944 } | |
| 1945 } | |
| 1946 | |
| 1947 // ------------------------------------------------------------------ | |
| 1948 // CompileBroker::collect_statistics | |
| 1949 // | |
| 1950 // Collect statistics about the compilation. | |
| 1951 | |
| 1952 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
| 1953 bool success = task->is_success(); | |
| 1954 methodHandle method (thread, (methodOop)JNIHandles::resolve(task->method_handle())); | |
| 1955 uint compile_id = task->compile_id(); | |
| 1956 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
| 1957 nmethod* code = task->code(); | |
| 1958 CompilerCounters* counters = thread->counters(); | |
| 1959 | |
| 1960 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
| 1961 MutexLocker locker(CompileStatistics_lock); | |
| 1962 | |
| 1963 // _perf variables are production performance counters which are | |
| 1964 // updated regardless of the setting of the CITime and CITimeEach flags | |
| 1965 // | |
| 1966 if (!success) { | |
| 1967 _total_bailout_count++; | |
| 1968 if (UsePerfData) { | |
| 1969 _perf_last_failed_method->set_value(counters->current_method()); | |
| 1970 _perf_last_failed_type->set_value(counters->compile_type()); | |
| 1971 _perf_total_bailout_count->inc(); | |
| 1972 } | |
| 1973 } else if (code == NULL) { | |
| 1974 if (UsePerfData) { | |
| 1975 _perf_last_invalidated_method->set_value(counters->current_method()); | |
| 1976 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
| 1977 _perf_total_invalidated_count->inc(); | |
| 1978 } | |
| 1979 _total_invalidated_count++; | |
| 1980 } else { | |
| 1981 // Compilation succeeded | |
| 1982 | |
| 1983 // update compilation ticks - used by the implementation of | |
| 1984 // java.lang.management.CompilationMBean | |
| 1985 _perf_total_compilation->inc(time.ticks()); | |
| 1986 | |
| 1987 if (CITime) { | |
| 1988 _t_total_compilation.add(time); | |
| 1989 if (is_osr) { | |
| 1990 _t_osr_compilation.add(time); | |
| 1991 _sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 1992 } else { | |
| 1993 _t_standard_compilation.add(time); | |
| 1994 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 1995 } | |
| 1996 } | |
| 1997 | |
| 1998 if (UsePerfData) { | |
| 1999 // save the name of the last method compiled | |
| 2000 _perf_last_method->set_value(counters->current_method()); | |
| 2001 _perf_last_compile_type->set_value(counters->compile_type()); | |
| 2002 _perf_last_compile_size->set_value(method->code_size() + | |
| 2003 task->num_inlined_bytecodes()); | |
| 2004 if (is_osr) { | |
| 2005 _perf_osr_compilation->inc(time.ticks()); | |
| 2006 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2007 } else { | |
| 2008 _perf_standard_compilation->inc(time.ticks()); | |
| 2009 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2010 } | |
| 2011 } | |
| 2012 | |
| 2013 if (CITimeEach) { | |
| 2014 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
| 2015 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
| 2016 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
| 2017 } | |
| 2018 | |
| 2019 // Collect counts of successful compilations | |
| 1748 | 2020 _sum_nmethod_size += code->total_size(); |
| 2021 _sum_nmethod_code_size += code->insts_size(); | |
| 0 | 2022 _total_compile_count++; |
| 2023 | |
| 2024 if (UsePerfData) { | |
| 1748 | 2025 _perf_sum_nmethod_size->inc( code->total_size()); |
| 2026 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
| 0 | 2027 _perf_total_compile_count->inc(); |
| 2028 } | |
| 2029 | |
| 2030 if (is_osr) { | |
| 2031 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
| 2032 _total_osr_compile_count++; | |
| 2033 } else { | |
| 2034 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
| 2035 _total_standard_compile_count++; | |
| 2036 } | |
| 2037 } | |
| 2038 // set the current method for the thread to null | |
| 2039 if (UsePerfData) counters->set_current_method(""); | |
| 2040 } | |
| 2041 | |
| 2042 | |
| 2043 | |
| 2044 void CompileBroker::print_times() { | |
| 2045 tty->cr(); | |
| 2046 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
| 2047 tty->print_cr("------------------------------------------------"); | |
| 2048 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
| 2049 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
| 2050 tty->print_cr(" Total compilation time : %6.3f s", CompileBroker::_t_total_compilation.seconds()); | |
| 2051 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", | |
| 2052 CompileBroker::_t_standard_compilation.seconds(), | |
| 2053 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count); | |
| 2054 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 | 2055 |
| 1783 | 2056 if (compiler(CompLevel_simple) != NULL) { |
| 2057 compiler(CompLevel_simple)->print_timers(); | |
| 0 | 2058 } |
| 1783 | 2059 if (compiler(CompLevel_full_optimization) != NULL) { |
| 2060 compiler(CompLevel_full_optimization)->print_timers(); | |
| 2061 } | |
| 0 | 2062 tty->cr(); |
| 2063 int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled; | |
| 2064 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); | |
| 2065 tty->print_cr(" Standard compilation : %6d bytes", CompileBroker::_sum_standard_bytes_compiled); | |
| 2066 tty->print_cr(" On stack replacement : %6d bytes", CompileBroker::_sum_osr_bytes_compiled); | |
| 2067 int bps = (int)(tcb / CompileBroker::_t_total_compilation.seconds()); | |
| 2068 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); | |
| 2069 tty->cr(); | |
| 2070 tty->print_cr(" nmethod code size : %6d bytes", CompileBroker::_sum_nmethod_code_size); | |
| 2071 tty->print_cr(" nmethod total size : %6d bytes", CompileBroker::_sum_nmethod_size); | |
| 2072 } | |
| 2073 | |
| 2074 | |
| 2075 // Debugging output for failure | |
| 2076 void CompileBroker::print_last_compile() { | |
| 2077 if ( _last_compile_level != CompLevel_none && | |
| 2078 compiler(_last_compile_level) != NULL && | |
| 2079 _last_method_compiled != NULL && | |
| 2080 _last_compile_type != no_compile) { | |
| 2081 if (_last_compile_type == osr_compile) { | |
| 2082 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
| 2083 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
| 2084 } else { | |
| 2085 tty->print_cr("Last parse: %d+++(%d) %s", | |
| 2086 _compilation_id, _last_compile_level, _last_method_compiled); | |
| 2087 } | |
| 2088 } | |
| 2089 } | |
| 2090 | |
| 2091 | |
| 2092 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
| 2093 #ifndef PRODUCT | |
| 2094 st->print_cr("Compiler thread printing unimplemented."); | |
| 2095 st->cr(); | |
| 2096 #endif | |
| 2097 } |