Mercurial > hg > truffle
annotate src/share/vm/compiler/compileBroker.cpp @ 10056:a323a9e20f9d
Fixed a few race conditions in the compilation queue.
author | Christian Haeubl <haeubl@ssw.jku.at> |
---|---|
date | Fri, 14 Jun 2013 19:12:56 +0200 |
parents | 89e4d67fdd2a |
children | 836a62f43af9 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "classfile/vmSymbols.hpp" | |
28 #include "code/codeCache.hpp" | |
29 #include "compiler/compileBroker.hpp" | |
30 #include "compiler/compileLog.hpp" | |
31 #include "compiler/compilerOracle.hpp" | |
32 #include "interpreter/linkResolver.hpp" | |
33 #include "memory/allocation.inline.hpp" | |
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34 #include "oops/methodData.hpp" |
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35 #include "oops/method.hpp" |
1972 | 36 #include "oops/oop.inline.hpp" |
37 #include "prims/nativeLookup.hpp" | |
38 #include "runtime/arguments.hpp" | |
39 #include "runtime/compilationPolicy.hpp" | |
40 #include "runtime/init.hpp" | |
41 #include "runtime/interfaceSupport.hpp" | |
42 #include "runtime/javaCalls.hpp" | |
43 #include "runtime/os.hpp" | |
44 #include "runtime/sharedRuntime.hpp" | |
45 #include "runtime/sweeper.hpp" | |
46 #include "utilities/dtrace.hpp" | |
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47 #include "utilities/events.hpp" |
1972 | 48 #ifdef COMPILER1 |
49 #include "c1/c1_Compiler.hpp" | |
50 #endif | |
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51 #ifdef GRAAL |
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52 #include "graal/graalCompiler.hpp" |
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53 #endif |
1972 | 54 #ifdef COMPILER2 |
55 #include "opto/c2compiler.hpp" | |
56 #endif | |
57 #ifdef SHARK | |
58 #include "shark/sharkCompiler.hpp" | |
59 #endif | |
0 | 60 |
61 #ifdef DTRACE_ENABLED | |
62 | |
63 // Only bother with this argument setup if dtrace is available | |
64 | |
4006 | 65 #ifndef USDT2 |
0 | 66 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, |
67 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
68 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
69 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
70 | |
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71 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method, comp_name) \ |
0 | 72 { \ |
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73 Symbol* klass_name = (method)->klass_name(); \ |
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74 Symbol* name = (method)->name(); \ |
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75 Symbol* signature = (method)->signature(); \ |
0 | 76 HS_DTRACE_PROBE8(hotspot, method__compile__begin, \ |
77 comp_name, strlen(comp_name), \ | |
78 klass_name->bytes(), klass_name->utf8_length(), \ | |
79 name->bytes(), name->utf8_length(), \ | |
80 signature->bytes(), signature->utf8_length()); \ | |
81 } | |
82 | |
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83 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, \ |
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84 comp_name, success) \ |
0 | 85 { \ |
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86 Symbol* klass_name = (method)->klass_name(); \ |
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87 Symbol* name = (method)->name(); \ |
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88 Symbol* signature = (method)->signature(); \ |
0 | 89 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ |
90 comp_name, strlen(comp_name), \ | |
91 klass_name->bytes(), klass_name->utf8_length(), \ | |
92 name->bytes(), name->utf8_length(), \ | |
93 signature->bytes(), signature->utf8_length(), (success)); \ | |
94 } | |
95 | |
4006 | 96 #else /* USDT2 */ |
97 | |
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98 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method, comp_name) \ |
4006 | 99 { \ |
100 Symbol* klass_name = (method)->klass_name(); \ | |
101 Symbol* name = (method)->name(); \ | |
102 Symbol* signature = (method)->signature(); \ | |
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103 HOTSPOT_METHOD_COMPILE_BEGIN( \ |
4006 | 104 comp_name, strlen(comp_name), \ |
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105 (char *) klass_name->bytes(), klass_name->utf8_length(), \ |
4006 | 106 (char *) name->bytes(), name->utf8_length(), \ |
107 (char *) signature->bytes(), signature->utf8_length()); \ | |
108 } | |
109 | |
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110 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, \ |
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111 comp_name, success) \ |
4006 | 112 { \ |
113 Symbol* klass_name = (method)->klass_name(); \ | |
114 Symbol* name = (method)->name(); \ | |
115 Symbol* signature = (method)->signature(); \ | |
116 HOTSPOT_METHOD_COMPILE_END( \ | |
117 comp_name, strlen(comp_name), \ | |
118 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
119 (char *) name->bytes(), name->utf8_length(), \ | |
120 (char *) signature->bytes(), signature->utf8_length(), (success)); \ | |
121 } | |
122 #endif /* USDT2 */ | |
123 | |
0 | 124 #else // ndef DTRACE_ENABLED |
125 | |
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126 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method, comp_name) |
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127 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, comp_name, success) |
0 | 128 |
129 #endif // ndef DTRACE_ENABLED | |
130 | |
131 bool CompileBroker::_initialized = false; | |
132 volatile bool CompileBroker::_should_block = false; | |
1202 | 133 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
0 | 134 |
135 // The installed compiler(s) | |
136 AbstractCompiler* CompileBroker::_compilers[2]; | |
137 | |
138 // These counters are used for assigning id's to each compilation | |
139 uint CompileBroker::_compilation_id = 0; | |
140 uint CompileBroker::_osr_compilation_id = 0; | |
141 | |
142 // Debugging information | |
143 int CompileBroker::_last_compile_type = no_compile; | |
144 int CompileBroker::_last_compile_level = CompLevel_none; | |
145 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
146 | |
147 // Performance counters | |
148 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
149 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
150 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
151 | |
152 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
153 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
154 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
155 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
156 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
157 | |
158 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
159 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
160 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
161 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
162 | |
163 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
164 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
165 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
166 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
167 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
168 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
169 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
170 | |
171 // Timers and counters for generating statistics | |
172 elapsedTimer CompileBroker::_t_total_compilation; | |
173 elapsedTimer CompileBroker::_t_osr_compilation; | |
174 elapsedTimer CompileBroker::_t_standard_compilation; | |
175 | |
176 int CompileBroker::_total_bailout_count = 0; | |
177 int CompileBroker::_total_invalidated_count = 0; | |
178 int CompileBroker::_total_compile_count = 0; | |
179 int CompileBroker::_total_osr_compile_count = 0; | |
180 int CompileBroker::_total_standard_compile_count = 0; | |
181 | |
182 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
183 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
184 int CompileBroker::_sum_nmethod_size = 0; | |
185 int CompileBroker::_sum_nmethod_code_size = 0; | |
186 | |
1783 | 187 CompileQueue* CompileBroker::_c2_method_queue = NULL; |
188 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
0 | 189 CompileTask* CompileBroker::_task_free_list = NULL; |
190 | |
191 GrowableArray<CompilerThread*>* CompileBroker::_method_threads = NULL; | |
192 | |
193 | |
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194 class CompilationLog : public StringEventLog { |
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195 public: |
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196 CompilationLog() : StringEventLog("Compilation events") { |
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197 } |
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198 |
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199 void log_compile(JavaThread* thread, CompileTask* task) { |
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200 StringLogMessage lm; |
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201 stringStream sstr = lm.stream(); |
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202 // msg.time_stamp().update_to(tty->time_stamp().ticks()); |
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203 task->print_compilation(&sstr, NULL, true); |
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204 log(thread, "%s", (const char*)lm); |
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205 } |
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206 |
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207 void log_nmethod(JavaThread* thread, nmethod* nm) { |
4944 | 208 log(thread, "nmethod %d%s " INTPTR_FORMAT " code ["INTPTR_FORMAT ", " INTPTR_FORMAT "]", |
209 nm->compile_id(), nm->is_osr_method() ? "%" : "", | |
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210 nm, nm->code_begin(), nm->code_end()); |
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211 } |
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212 |
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213 void log_failure(JavaThread* thread, CompileTask* task, const char* reason, const char* retry_message) { |
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214 StringLogMessage lm; |
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215 lm.print("%4d COMPILE SKIPPED: %s", task->compile_id(), reason); |
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216 if (retry_message != NULL) { |
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217 lm.append(" (%s)", retry_message); |
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218 } |
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219 lm.print("\n"); |
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220 log(thread, "%s", (const char*)lm); |
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221 } |
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222 }; |
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223 |
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224 static CompilationLog* _compilation_log = NULL; |
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225 |
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226 void compileBroker_init() { |
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227 if (LogEvents) { |
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228 _compilation_log = new CompilationLog(); |
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229 } |
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230 } |
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231 |
0 | 232 CompileTaskWrapper::CompileTaskWrapper(CompileTask* task) { |
233 CompilerThread* thread = CompilerThread::current(); | |
234 thread->set_task(task); | |
235 CompileLog* log = thread->log(); | |
236 if (log != NULL) task->log_task_start(log); | |
237 } | |
238 | |
239 CompileTaskWrapper::~CompileTaskWrapper() { | |
240 CompilerThread* thread = CompilerThread::current(); | |
241 CompileTask* task = thread->task(); | |
242 CompileLog* log = thread->log(); | |
243 if (log != NULL) task->log_task_done(log); | |
244 thread->set_task(NULL); | |
245 task->set_code_handle(NULL); | |
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246 thread->set_env(NULL); |
0 | 247 if (task->is_blocking()) { |
248 MutexLocker notifier(task->lock(), thread); | |
249 task->mark_complete(); | |
250 // Notify the waiting thread that the compilation has completed. | |
251 task->lock()->notify_all(); | |
252 } else { | |
253 task->mark_complete(); | |
254 | |
255 // By convention, the compiling thread is responsible for | |
256 // recycling a non-blocking CompileTask. | |
257 CompileBroker::free_task(task); | |
258 } | |
259 } | |
260 | |
261 | |
262 // ------------------------------------------------------------------ | |
263 // CompileTask::initialize | |
264 void CompileTask::initialize(int compile_id, | |
265 methodHandle method, | |
266 int osr_bci, | |
267 int comp_level, | |
268 methodHandle hot_method, | |
269 int hot_count, | |
270 const char* comment, | |
271 bool is_blocking) { | |
272 assert(!_lock->is_locked(), "bad locking"); | |
273 | |
274 _compile_id = compile_id; | |
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275 _method = method(); |
7409 | 276 _method_holder = JNIHandles::make_global(method->method_holder()->klass_holder()); |
0 | 277 _osr_bci = osr_bci; |
278 _is_blocking = is_blocking; | |
279 _comp_level = comp_level; | |
280 _num_inlined_bytecodes = 0; | |
281 | |
282 _is_complete = false; | |
283 _is_success = false; | |
284 _code_handle = NULL; | |
285 | |
286 _hot_method = NULL; | |
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287 _hot_method_holder = NULL; |
0 | 288 _hot_count = hot_count; |
289 _time_queued = 0; // tidy | |
290 _comment = comment; | |
291 | |
292 if (LogCompilation) { | |
293 _time_queued = os::elapsed_counter(); | |
294 if (hot_method.not_null()) { | |
295 if (hot_method == method) { | |
296 _hot_method = _method; | |
297 } else { | |
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298 _hot_method = hot_method(); |
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299 // only add loader or mirror if different from _method_holder |
7409 | 300 _hot_method_holder = JNIHandles::make_global(hot_method->method_holder()->klass_holder()); |
0 | 301 } |
302 } | |
303 } | |
304 | |
305 _next = NULL; | |
306 } | |
307 | |
308 // ------------------------------------------------------------------ | |
309 // CompileTask::code/set_code | |
310 nmethod* CompileTask::code() const { | |
311 if (_code_handle == NULL) return NULL; | |
312 return _code_handle->code(); | |
313 } | |
314 void CompileTask::set_code(nmethod* nm) { | |
315 if (_code_handle == NULL && nm == NULL) return; | |
316 guarantee(_code_handle != NULL, ""); | |
317 _code_handle->set_code(nm); | |
318 if (nm == NULL) _code_handle = NULL; // drop the handle also | |
319 } | |
320 | |
321 // ------------------------------------------------------------------ | |
322 // CompileTask::free | |
323 void CompileTask::free() { | |
324 set_code(NULL); | |
325 assert(!_lock->is_locked(), "Should not be locked when freed"); | |
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326 JNIHandles::destroy_global(_method_holder); |
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327 JNIHandles::destroy_global(_hot_method_holder); |
0 | 328 } |
329 | |
330 | |
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331 void CompileTask::mark_on_stack() { |
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332 // Mark these methods as something redefine classes cannot remove. |
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333 _method->set_on_stack(true); |
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334 if (_hot_method != NULL) { |
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335 _hot_method->set_on_stack(true); |
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336 } |
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337 } |
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338 |
0 | 339 // ------------------------------------------------------------------ |
340 // CompileTask::print | |
341 void CompileTask::print() { | |
342 tty->print("<CompileTask compile_id=%d ", _compile_id); | |
343 tty->print("method="); | |
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344 _method->print_name(tty); |
0 | 345 tty->print_cr(" osr_bci=%d is_blocking=%s is_complete=%s is_success=%s>", |
346 _osr_bci, bool_to_str(_is_blocking), | |
347 bool_to_str(_is_complete), bool_to_str(_is_success)); | |
348 } | |
349 | |
1783 | 350 |
0 | 351 // ------------------------------------------------------------------ |
352 // CompileTask::print_line_on_error | |
353 // | |
354 // This function is called by fatal error handler when the thread | |
355 // causing troubles is a compiler thread. | |
356 // | |
357 // Do not grab any lock, do not allocate memory. | |
358 // | |
359 // Otherwise it's the same as CompileTask::print_line() | |
360 // | |
361 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) { | |
362 // print compiler name | |
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363 st->print("%s:", CompileBroker::compiler_name(comp_level())); |
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364 print_compilation(st); |
0 | 365 } |
366 | |
367 // ------------------------------------------------------------------ | |
368 // CompileTask::print_line | |
369 void CompileTask::print_line() { | |
370 ttyLocker ttyl; // keep the following output all in one block | |
371 // print compiler name if requested | |
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372 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler_name(comp_level())); |
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373 print_compilation(); |
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374 } |
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375 |
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376 |
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377 // ------------------------------------------------------------------ |
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378 // CompileTask::print_compilation_impl |
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379 void CompileTask::print_compilation_impl(outputStream* st, Method* method, int compile_id, int comp_level, |
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380 bool is_osr_method, int osr_bci, bool is_blocking, |
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381 const char* msg, bool short_form) { |
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382 if (!short_form) { |
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383 st->print("%7d ", (int) st->time_stamp().milliseconds()); // print timestamp |
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384 } |
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385 st->print("%4d ", compile_id); // print compilation number |
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386 |
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387 // For unloaded methods the transition to zombie occurs after the |
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388 // method is cleared so it's impossible to report accurate |
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389 // information for that case. |
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390 bool is_synchronized = false; |
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391 bool has_exception_handler = false; |
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392 bool is_native = false; |
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393 if (method != NULL) { |
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394 is_synchronized = method->is_synchronized(); |
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395 has_exception_handler = method->has_exception_handler(); |
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396 is_native = method->is_native(); |
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397 } |
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398 // method attributes |
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399 const char compile_type = is_osr_method ? '%' : ' '; |
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400 const char sync_char = is_synchronized ? 's' : ' '; |
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401 const char exception_char = has_exception_handler ? '!' : ' '; |
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402 const char blocking_char = is_blocking ? 'b' : ' '; |
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403 const char native_char = is_native ? 'n' : ' '; |
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404 |
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405 // print method attributes |
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406 st->print("%c%c%c%c%c ", compile_type, sync_char, exception_char, blocking_char, native_char); |
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407 |
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408 if (TieredCompilation) { |
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409 if (comp_level != -1) st->print("%d ", comp_level); |
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410 else st->print("- "); |
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411 } |
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412 st->print(" "); // more indent |
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413 |
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414 if (method == NULL) { |
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415 st->print("(method)"); |
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416 } else { |
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417 method->print_short_name(st); |
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418 if (is_osr_method) { |
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419 st->print(" @ %d", osr_bci); |
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420 } |
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421 if (method->is_native()) |
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422 st->print(" (native)"); |
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423 else |
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424 st->print(" (%d bytes)", method->code_size()); |
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425 } |
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426 |
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427 if (msg != NULL) { |
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428 st->print(" %s", msg); |
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429 } |
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430 if (!short_form) { |
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431 st->cr(); |
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432 } |
0 | 433 } |
434 | |
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435 // ------------------------------------------------------------------ |
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436 // CompileTask::print_inlining |
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437 void CompileTask::print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg) { |
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438 // 1234567 |
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439 st->print(" "); // print timestamp |
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440 // 1234 |
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441 st->print(" "); // print compilation number |
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442 |
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443 // method attributes |
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444 if (method->is_loaded()) { |
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445 const char sync_char = method->is_synchronized() ? 's' : ' '; |
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446 const char exception_char = method->has_exception_handlers() ? '!' : ' '; |
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447 const char monitors_char = method->has_monitor_bytecodes() ? 'm' : ' '; |
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448 |
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449 // print method attributes |
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450 st->print(" %c%c%c ", sync_char, exception_char, monitors_char); |
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451 } else { |
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452 // %s!bn |
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453 st->print(" "); // print method attributes |
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454 } |
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455 |
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456 if (TieredCompilation) { |
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457 st->print(" "); |
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458 } |
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459 st->print(" "); // more indent |
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460 st->print(" "); // initial inlining indent |
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461 |
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462 for (int i = 0; i < inline_level; i++) st->print(" "); |
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463 |
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464 st->print("@ %d ", bci); // print bci |
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465 method->print_short_name(st); |
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466 if (method->is_loaded()) |
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467 st->print(" (%d bytes)", method->code_size()); |
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468 else |
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469 st->print(" (not loaded)"); |
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470 |
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471 if (msg != NULL) { |
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472 st->print(" %s", msg); |
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473 } |
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474 st->cr(); |
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475 } |
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476 |
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477 // ------------------------------------------------------------------ |
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478 // CompileTask::print_inline_indent |
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479 void CompileTask::print_inline_indent(int inline_level, outputStream* st) { |
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480 // 1234567 |
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481 st->print(" "); // print timestamp |
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482 // 1234 |
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483 st->print(" "); // print compilation number |
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484 // %s!bn |
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485 st->print(" "); // print method attributes |
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486 if (TieredCompilation) { |
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487 st->print(" "); |
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488 } |
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489 st->print(" "); // more indent |
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490 st->print(" "); // initial inlining indent |
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491 for (int i = 0; i < inline_level; i++) st->print(" "); |
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492 } |
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493 |
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494 // ------------------------------------------------------------------ |
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495 // CompileTask::print_compilation |
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496 void CompileTask::print_compilation(outputStream* st, const char* msg, bool short_form) { |
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497 bool is_osr_method = osr_bci() != InvocationEntryBci; |
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498 print_compilation_impl(st, method(), compile_id(), comp_level(), is_osr_method, osr_bci(), is_blocking(), msg, short_form); |
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499 } |
0 | 500 |
501 // ------------------------------------------------------------------ | |
502 // CompileTask::log_task | |
503 void CompileTask::log_task(xmlStream* log) { | |
504 Thread* thread = Thread::current(); | |
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505 methodHandle method(thread, this->method()); |
0 | 506 ResourceMark rm(thread); |
507 | |
508 // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'> | |
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509 log->print(" compile_id='%d'", _compile_id); |
0 | 510 if (_osr_bci != CompileBroker::standard_entry_bci) { |
511 log->print(" compile_kind='osr'"); // same as nmethod::compile_kind | |
512 } // else compile_kind='c2c' | |
513 if (!method.is_null()) log->method(method); | |
514 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
515 log->print(" osr_bci='%d'", _osr_bci); | |
516 } | |
517 if (_comp_level != CompLevel_highest_tier) { | |
518 log->print(" level='%d'", _comp_level); | |
519 } | |
520 if (_is_blocking) { | |
521 log->print(" blocking='1'"); | |
522 } | |
523 log->stamp(); | |
524 } | |
525 | |
526 | |
527 // ------------------------------------------------------------------ | |
528 // CompileTask::log_task_queued | |
529 void CompileTask::log_task_queued() { | |
530 Thread* thread = Thread::current(); | |
531 ttyLocker ttyl; | |
532 ResourceMark rm(thread); | |
533 | |
534 xtty->begin_elem("task_queued"); | |
535 log_task(xtty); | |
536 if (_comment != NULL) { | |
537 xtty->print(" comment='%s'", _comment); | |
538 } | |
539 if (_hot_method != NULL) { | |
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540 methodHandle hot(thread, _hot_method); |
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541 methodHandle method(thread, _method); |
0 | 542 if (hot() != method()) { |
543 xtty->method(hot); | |
544 } | |
545 } | |
546 if (_hot_count != 0) { | |
547 xtty->print(" hot_count='%d'", _hot_count); | |
548 } | |
549 xtty->end_elem(); | |
550 } | |
551 | |
552 | |
553 // ------------------------------------------------------------------ | |
554 // CompileTask::log_task_start | |
555 void CompileTask::log_task_start(CompileLog* log) { | |
556 log->begin_head("task"); | |
557 log_task(log); | |
558 log->end_head(); | |
559 } | |
560 | |
561 | |
562 // ------------------------------------------------------------------ | |
563 // CompileTask::log_task_done | |
564 void CompileTask::log_task_done(CompileLog* log) { | |
565 Thread* thread = Thread::current(); | |
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566 methodHandle method(thread, this->method()); |
0 | 567 ResourceMark rm(thread); |
568 | |
569 // <task_done ... stamp='1.234'> </task> | |
570 nmethod* nm = code(); | |
571 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
1748 | 572 _is_success, nm == NULL ? 0 : nm->content_size(), |
0 | 573 method->invocation_count()); |
574 int bec = method->backedge_count(); | |
575 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
576 // Note: "_is_complete" is about to be set, but is not. | |
577 if (_num_inlined_bytecodes != 0) { | |
578 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
579 } | |
580 log->stamp(); | |
581 log->end_elem(); | |
582 log->tail("task"); | |
583 log->clear_identities(); // next task will have different CI | |
584 if (log->unflushed_count() > 2000) { | |
585 log->flush(); | |
586 } | |
587 log->mark_file_end(); | |
588 } | |
589 | |
590 | |
591 | |
592 // ------------------------------------------------------------------ | |
593 // CompileQueue::add | |
594 // | |
595 // Add a CompileTask to a CompileQueue | |
596 void CompileQueue::add(CompileTask* task) { | |
597 assert(lock()->owned_by_self(), "must own lock"); | |
598 | |
599 task->set_next(NULL); | |
1783 | 600 task->set_prev(NULL); |
0 | 601 |
602 if (_last == NULL) { | |
603 // The compile queue is empty. | |
604 assert(_first == NULL, "queue is empty"); | |
605 _first = task; | |
606 _last = task; | |
607 } else { | |
608 // Append the task to the queue. | |
609 assert(_last->next() == NULL, "not last"); | |
610 _last->set_next(task); | |
1783 | 611 task->set_prev(_last); |
0 | 612 _last = task; |
613 } | |
1783 | 614 ++_size; |
0 | 615 |
616 // Mark the method as being in the compile queue. | |
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617 task->method()->set_queued_for_compilation(); |
0 | 618 |
619 if (CIPrintCompileQueue) { | |
620 print(); | |
621 } | |
622 | |
623 if (LogCompilation && xtty != NULL) { | |
624 task->log_task_queued(); | |
625 } | |
626 | |
627 // Notify CompilerThreads that a task is available. | |
1783 | 628 lock()->notify_all(); |
0 | 629 } |
630 | |
631 // ------------------------------------------------------------------ | |
632 // CompileQueue::get | |
633 // | |
634 // Get the next CompileTask from a CompileQueue | |
635 CompileTask* CompileQueue::get() { | |
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636 NMethodSweeper::possibly_sweep(); |
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637 |
0 | 638 MutexLocker locker(lock()); |
639 // Wait for an available CompileTask. | |
640 while (_first == NULL) { | |
641 // There is no work to be done right now. Wait. | |
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642 if (UseCodeCacheFlushing && (!CompileBroker::should_compile_new_jobs() || CodeCache::needs_flushing())) { |
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643 // During the emergency sweeping periods, wake up and sweep occasionally |
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644 bool timedout = lock()->wait(!Mutex::_no_safepoint_check_flag, NmethodSweepCheckInterval*1000); |
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645 if (timedout) { |
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646 MutexUnlocker ul(lock()); |
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647 // When otherwise not busy, run nmethod sweeping |
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648 NMethodSweeper::possibly_sweep(); |
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649 } |
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650 } else { |
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651 // During normal operation no need to wake up on timer |
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652 lock()->wait(); |
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653 } |
0 | 654 } |
1783 | 655 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
656 remove(task); | |
657 return task; | |
658 } | |
0 | 659 |
1783 | 660 void CompileQueue::remove(CompileTask* task) |
661 { | |
662 assert(lock()->owned_by_self(), "must own lock"); | |
663 if (task->prev() != NULL) { | |
664 task->prev()->set_next(task->next()); | |
665 } else { | |
666 // max is the first element | |
667 assert(task == _first, "Sanity"); | |
668 _first = task->next(); | |
0 | 669 } |
670 | |
1783 | 671 if (task->next() != NULL) { |
672 task->next()->set_prev(task->prev()); | |
673 } else { | |
674 // max is the last element | |
675 assert(task == _last, "Sanity"); | |
676 _last = task->prev(); | |
677 } | |
678 --_size; | |
0 | 679 } |
680 | |
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681 // methods in the compile queue need to be marked as used on the stack |
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682 // so that they don't get reclaimed by Redefine Classes |
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683 void CompileQueue::mark_on_stack() { |
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684 CompileTask* task = _first; |
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685 while (task != NULL) { |
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686 task->mark_on_stack(); |
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687 task = task->next(); |
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688 } |
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689 } |
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690 |
0 | 691 // ------------------------------------------------------------------ |
692 // CompileQueue::print | |
693 void CompileQueue::print() { | |
694 tty->print_cr("Contents of %s", name()); | |
695 tty->print_cr("----------------------"); | |
696 CompileTask* task = _first; | |
697 while (task != NULL) { | |
698 task->print_line(); | |
699 task = task->next(); | |
700 } | |
701 tty->print_cr("----------------------"); | |
702 } | |
703 | |
704 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
705 | |
706 _current_method[0] = '\0'; | |
707 _compile_type = CompileBroker::no_compile; | |
708 | |
709 if (UsePerfData) { | |
710 ResourceMark rm; | |
711 | |
712 // create the thread instance name space string - don't create an | |
713 // instance subspace if instance is -1 - keeps the adapterThread | |
714 // counters from having a ".0" namespace. | |
715 const char* thread_i = (instance == -1) ? thread_name : | |
716 PerfDataManager::name_space(thread_name, instance); | |
717 | |
718 | |
719 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
720 _perf_current_method = | |
721 PerfDataManager::create_string_variable(SUN_CI, name, | |
722 cmname_buffer_length, | |
723 _current_method, CHECK); | |
724 | |
725 name = PerfDataManager::counter_name(thread_i, "type"); | |
726 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
727 PerfData::U_None, | |
728 (jlong)_compile_type, | |
729 CHECK); | |
730 | |
731 name = PerfDataManager::counter_name(thread_i, "time"); | |
732 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
733 PerfData::U_Ticks, CHECK); | |
734 | |
735 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
736 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
737 PerfData::U_Events, CHECK); | |
738 } | |
739 } | |
740 | |
741 // ------------------------------------------------------------------ | |
742 // CompileBroker::compilation_init | |
743 // | |
744 // Initialize the Compilation object | |
745 void CompileBroker::compilation_init() { | |
746 _last_method_compiled[0] = '\0'; | |
747 | |
1970 | 748 #ifndef SHARK |
0 | 749 // Set the interface to the current compiler(s). |
1783 | 750 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
751 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
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752 |
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753 #ifdef GRAAL |
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754 GraalCompiler* graal = new GraalCompiler(); |
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755 #endif |
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756 |
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757 #if defined(GRAALVM) |
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758 _compilers[0] = graal; |
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759 c1_count = 0; |
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760 c2_count = 0; |
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761 #elif defined(COMPILER1) |
1783 | 762 if (c1_count > 0) { |
763 _compilers[0] = new Compiler(); | |
764 } | |
0 | 765 #endif // COMPILER1 |
766 | |
767 #ifdef COMPILER2 | |
1783 | 768 if (c2_count > 0) { |
769 _compilers[1] = new C2Compiler(); | |
770 } | |
0 | 771 #endif // COMPILER2 |
772 | |
1970 | 773 #else // SHARK |
774 int c1_count = 0; | |
775 int c2_count = 1; | |
776 | |
777 _compilers[1] = new SharkCompiler(); | |
778 #endif // SHARK | |
1692 | 779 |
0 | 780 // Initialize the CompileTask free list |
781 _task_free_list = NULL; | |
782 | |
783 // Start the CompilerThreads | |
1783 | 784 init_compiler_threads(c1_count, c2_count); |
0 | 785 // totalTime performance counter is always created as it is required |
786 // by the implementation of java.lang.management.CompilationMBean. | |
787 { | |
788 EXCEPTION_MARK; | |
789 _perf_total_compilation = | |
790 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
791 PerfData::U_Ticks, CHECK); | |
792 } | |
793 | |
794 | |
795 if (UsePerfData) { | |
796 | |
797 EXCEPTION_MARK; | |
798 | |
799 // create the jvmstat performance counters | |
800 _perf_osr_compilation = | |
801 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
802 PerfData::U_Ticks, CHECK); | |
803 | |
804 _perf_standard_compilation = | |
805 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
806 PerfData::U_Ticks, CHECK); | |
807 | |
808 _perf_total_bailout_count = | |
809 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
810 PerfData::U_Events, CHECK); | |
811 | |
812 _perf_total_invalidated_count = | |
813 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
814 PerfData::U_Events, CHECK); | |
815 | |
816 _perf_total_compile_count = | |
817 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
818 PerfData::U_Events, CHECK); | |
819 _perf_total_osr_compile_count = | |
820 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
821 PerfData::U_Events, CHECK); | |
822 | |
823 _perf_total_standard_compile_count = | |
824 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
825 PerfData::U_Events, CHECK); | |
826 | |
827 _perf_sum_osr_bytes_compiled = | |
828 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
829 PerfData::U_Bytes, CHECK); | |
830 | |
831 _perf_sum_standard_bytes_compiled = | |
832 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
833 PerfData::U_Bytes, CHECK); | |
834 | |
835 _perf_sum_nmethod_size = | |
836 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
837 PerfData::U_Bytes, CHECK); | |
838 | |
839 _perf_sum_nmethod_code_size = | |
840 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
841 PerfData::U_Bytes, CHECK); | |
842 | |
843 _perf_last_method = | |
844 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
845 CompilerCounters::cmname_buffer_length, | |
846 "", CHECK); | |
847 | |
848 _perf_last_failed_method = | |
849 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
850 CompilerCounters::cmname_buffer_length, | |
851 "", CHECK); | |
852 | |
853 _perf_last_invalidated_method = | |
854 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
855 CompilerCounters::cmname_buffer_length, | |
856 "", CHECK); | |
857 | |
858 _perf_last_compile_type = | |
859 PerfDataManager::create_variable(SUN_CI, "lastType", | |
860 PerfData::U_None, | |
861 (jlong)CompileBroker::no_compile, | |
862 CHECK); | |
863 | |
864 _perf_last_compile_size = | |
865 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
866 PerfData::U_Bytes, | |
867 (jlong)CompileBroker::no_compile, | |
868 CHECK); | |
869 | |
870 | |
871 _perf_last_failed_type = | |
872 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
873 PerfData::U_None, | |
874 (jlong)CompileBroker::no_compile, | |
875 CHECK); | |
876 | |
877 _perf_last_invalidated_type = | |
878 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
879 PerfData::U_None, | |
880 (jlong)CompileBroker::no_compile, | |
881 CHECK); | |
882 } | |
883 | |
884 _initialized = true; | |
885 } | |
886 | |
887 | |
888 | |
889 // ------------------------------------------------------------------ | |
890 // CompileBroker::make_compiler_thread | |
891 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS) { | |
892 CompilerThread* compiler_thread = NULL; | |
893 | |
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894 Klass* k = |
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895 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_Thread(), |
0 | 896 true, CHECK_0); |
897 instanceKlassHandle klass (THREAD, k); | |
898 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
899 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
900 | |
901 // Initialize thread_oop to put it into the system threadGroup | |
902 Handle thread_group (THREAD, Universe::system_thread_group()); | |
903 JavaValue result(T_VOID); | |
904 JavaCalls::call_special(&result, thread_oop, | |
905 klass, | |
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906 vmSymbols::object_initializer_name(), |
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907 vmSymbols::threadgroup_string_void_signature(), |
0 | 908 thread_group, |
909 string, | |
910 CHECK_0); | |
911 | |
912 { | |
913 MutexLocker mu(Threads_lock, THREAD); | |
914 compiler_thread = new CompilerThread(queue, counters); | |
915 // At this point the new CompilerThread data-races with this startup | |
916 // thread (which I believe is the primoridal thread and NOT the VM | |
917 // thread). This means Java bytecodes being executed at startup can | |
918 // queue compile jobs which will run at whatever default priority the | |
919 // newly created CompilerThread runs at. | |
920 | |
921 | |
922 // At this point it may be possible that no osthread was created for the | |
923 // JavaThread due to lack of memory. We would have to throw an exception | |
924 // in that case. However, since this must work and we do not allow | |
925 // exceptions anyway, check and abort if this fails. | |
926 | |
927 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
928 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
929 "unable to create new native thread"); | |
930 } | |
931 | |
932 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
933 | |
934 // Note that this only sets the JavaThread _priority field, which by | |
935 // definition is limited to Java priorities and not OS priorities. | |
936 // The os-priority is set in the CompilerThread startup code itself | |
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937 |
0 | 938 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); |
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939 |
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940 // Note that we cannot call os::set_priority because it expects Java |
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941 // priorities and we are *explicitly* using OS priorities so that it's |
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942 // possible to set the compiler thread priority higher than any Java |
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943 // thread. |
0 | 944 |
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945 int native_prio = CompilerThreadPriority; |
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946 if (native_prio == -1) { |
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947 if (UseCriticalCompilerThreadPriority) { |
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948 native_prio = os::java_to_os_priority[CriticalPriority]; |
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949 } else { |
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950 native_prio = os::java_to_os_priority[NearMaxPriority]; |
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951 } |
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952 } |
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953 os::set_native_priority(compiler_thread, native_prio); |
0 | 954 |
955 java_lang_Thread::set_daemon(thread_oop()); | |
956 | |
957 compiler_thread->set_threadObj(thread_oop()); | |
958 Threads::add(compiler_thread); | |
959 Thread::start(compiler_thread); | |
960 } | |
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961 |
0 | 962 // Let go of Threads_lock before yielding |
963 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
964 | |
965 return compiler_thread; | |
966 } | |
967 | |
968 | |
969 // ------------------------------------------------------------------ | |
970 // CompileBroker::init_compiler_threads | |
971 // | |
972 // Initialize the compilation queue | |
1783 | 973 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
0 | 974 EXCEPTION_MARK; |
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975 #if !defined(ZERO) && !defined(SHARK) && !defined(GRAALVM) |
1783 | 976 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
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977 #endif // !ZERO && !SHARK && !GRAALVM |
1783 | 978 if (c2_compiler_count > 0) { |
979 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
980 } | |
981 if (c1_compiler_count > 0) { | |
982 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
983 } | |
0 | 984 |
1783 | 985 int compiler_count = c1_compiler_count + c2_compiler_count; |
986 | |
0 | 987 _method_threads = |
6197 | 988 new (ResourceObj::C_HEAP, mtCompiler) GrowableArray<CompilerThread*>(compiler_count, true); |
0 | 989 |
990 char name_buffer[256]; | |
1783 | 991 for (int i = 0; i < c2_compiler_count; i++) { |
0 | 992 // Create a name for our thread. |
1783 | 993 sprintf(name_buffer, "C2 CompilerThread%d", i); |
0 | 994 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
1783 | 995 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, CHECK); |
0 | 996 _method_threads->append(new_thread); |
997 } | |
1783 | 998 |
999 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
1000 // Create a name for our thread. | |
1001 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
1002 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
1003 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, CHECK); | |
1004 _method_threads->append(new_thread); | |
1005 } | |
1006 | |
0 | 1007 if (UsePerfData) { |
1008 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, | |
1009 compiler_count, CHECK); | |
1010 } | |
1011 } | |
1012 | |
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1013 |
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1014 // Set the methods on the stack as on_stack so that redefine classes doesn't |
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1015 // reclaim them |
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1016 void CompileBroker::mark_on_stack() { |
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1017 if (_c2_method_queue != NULL) { |
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1018 _c2_method_queue->mark_on_stack(); |
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1019 } |
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1020 if (_c1_method_queue != NULL) { |
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1021 _c1_method_queue->mark_on_stack(); |
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1022 } |
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1023 } |
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1024 |
0 | 1025 // ------------------------------------------------------------------ |
1026 // CompileBroker::is_idle | |
1027 bool CompileBroker::is_idle() { | |
1783 | 1028 if (_c2_method_queue != NULL && !_c2_method_queue->is_empty()) { |
1029 return false; | |
1030 } else if (_c1_method_queue != NULL && !_c1_method_queue->is_empty()) { | |
0 | 1031 return false; |
1032 } else { | |
1033 int num_threads = _method_threads->length(); | |
1034 for (int i=0; i<num_threads; i++) { | |
1035 if (_method_threads->at(i)->task() != NULL) { | |
1036 return false; | |
1037 } | |
1038 } | |
1039 } | |
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1040 // No pending or active compilations. |
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1041 return true; |
0 | 1042 } |
1043 | |
1044 | |
1045 // ------------------------------------------------------------------ | |
1046 // CompileBroker::compile_method | |
1047 // | |
1048 // Request compilation of a method. | |
1049 void CompileBroker::compile_method_base(methodHandle method, | |
1050 int osr_bci, | |
1051 int comp_level, | |
1052 methodHandle hot_method, | |
1053 int hot_count, | |
1054 const char* comment, | |
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1055 Thread* thread) { |
0 | 1056 // do nothing if compiler thread(s) is not available |
1057 if (!_initialized ) { | |
1058 return; | |
1059 } | |
1060 | |
1061 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
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1062 assert(method->method_holder()->oop_is_instance(), |
0 | 1063 "sanity check"); |
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1064 assert(!method->method_holder()->is_not_initialized(), |
0 | 1065 "method holder must be initialized"); |
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1066 assert(!method->is_method_handle_intrinsic(), "do not enqueue these guys"); |
0 | 1067 |
1068 if (CIPrintRequests) { | |
1069 tty->print("request: "); | |
1070 method->print_short_name(tty); | |
1071 if (osr_bci != InvocationEntryBci) { | |
1072 tty->print(" osr_bci: %d", osr_bci); | |
1073 } | |
1074 tty->print(" comment: %s count: %d", comment, hot_count); | |
1075 if (!hot_method.is_null()) { | |
1076 tty->print(" hot: "); | |
1077 if (hot_method() != method()) { | |
1078 hot_method->print_short_name(tty); | |
1079 } else { | |
1080 tty->print("yes"); | |
1081 } | |
1082 } | |
1083 tty->cr(); | |
1084 } | |
1085 | |
1086 // A request has been made for compilation. Before we do any | |
1087 // real work, check to see if the method has been compiled | |
1088 // in the meantime with a definitive result. | |
1089 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
1090 return; | |
1091 } | |
1092 | |
2403 | 1093 #ifndef PRODUCT |
1094 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) { | |
1095 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) { | |
1096 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI. | |
1097 return; | |
1098 } | |
1099 } | |
1100 #endif | |
1783 | 1101 |
0 | 1102 // If this method is already in the compile queue, then |
1103 // we do not block the current thread. | |
1104 if (compilation_is_in_queue(method, osr_bci)) { | |
1105 // We may want to decay our counter a bit here to prevent | |
1106 // multiple denied requests for compilation. This is an | |
1107 // open compilation policy issue. Note: The other possibility, | |
1108 // in the case that this is a blocking compile request, is to have | |
1109 // all subsequent blocking requesters wait for completion of | |
1110 // ongoing compiles. Note that in this case we'll need a protocol | |
1111 // for freeing the associated compile tasks. [Or we could have | |
1112 // a single static monitor on which all these waiters sleep.] | |
1113 return; | |
1114 } | |
1115 | |
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1116 // If the requesting thread is holding the pending list lock |
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1117 // then we just return. We can't risk blocking while holding |
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1118 // the pending list lock or a 3-way deadlock may occur |
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1119 // between the reference handler thread, a GC (instigated |
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1120 // by a compiler thread), and compiled method registration. |
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1121 if (InstanceRefKlass::owns_pending_list_lock(JavaThread::current())) { |
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1122 return; |
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1123 } |
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1124 #ifdef GRAALVM |
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1125 if (!JavaThread::current()->is_compiling()) { |
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1126 GraalCompiler::instance()->compile_method(method, osr_bci, is_compile_blocking(method, osr_bci)); |
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1127 } else { |
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1128 // Recursive compile request => ignore. |
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1129 } |
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1130 #else |
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1131 |
0 | 1132 // Outputs from the following MutexLocker block: |
1133 CompileTask* task = NULL; | |
1134 bool blocking = false; | |
1783 | 1135 CompileQueue* queue = compile_queue(comp_level); |
0 | 1136 |
1137 // Acquire our lock. | |
1138 { | |
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1139 MutexLocker locker(queue->lock(), thread); |
0 | 1140 |
1141 // Make sure the method has not slipped into the queues since | |
1142 // last we checked; note that those checks were "fast bail-outs". | |
1143 // Here we need to be more careful, see 14012000 below. | |
1144 if (compilation_is_in_queue(method, osr_bci)) { | |
1145 return; | |
1146 } | |
1147 | |
1148 // We need to check again to see if the compilation has | |
1149 // completed. A previous compilation may have registered | |
1150 // some result. | |
1151 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
1152 return; | |
1153 } | |
1154 | |
1155 // We now know that this compilation is not pending, complete, | |
1156 // or prohibited. Assign a compile_id to this compilation | |
1157 // and check to see if it is in our [Start..Stop) range. | |
1158 uint compile_id = assign_compile_id(method, osr_bci); | |
1159 if (compile_id == 0) { | |
1160 // The compilation falls outside the allowed range. | |
1161 return; | |
1162 } | |
1163 | |
1164 // Should this thread wait for completion of the compile? | |
1165 blocking = is_compile_blocking(method, osr_bci); | |
1166 | |
1167 // We will enter the compilation in the queue. | |
1168 // 14012000: Note that this sets the queued_for_compile bits in | |
1169 // the target method. We can now reason that a method cannot be | |
1170 // queued for compilation more than once, as follows: | |
1171 // Before a thread queues a task for compilation, it first acquires | |
1172 // the compile queue lock, then checks if the method's queued bits | |
1173 // are set or it has already been compiled. Thus there can not be two | |
1174 // instances of a compilation task for the same method on the | |
1175 // compilation queue. Consider now the case where the compilation | |
1176 // thread has already removed a task for that method from the queue | |
1177 // and is in the midst of compiling it. In this case, the | |
1178 // queued_for_compile bits must be set in the method (and these | |
1179 // will be visible to the current thread, since the bits were set | |
1180 // under protection of the compile queue lock, which we hold now. | |
1181 // When the compilation completes, the compiler thread first sets | |
1182 // the compilation result and then clears the queued_for_compile | |
1183 // bits. Neither of these actions are protected by a barrier (or done | |
1184 // under the protection of a lock), so the only guarantee we have | |
1185 // (on machines with TSO (Total Store Order)) is that these values | |
1186 // will update in that order. As a result, the only combinations of | |
1187 // these bits that the current thread will see are, in temporal order: | |
1188 // <RESULT, QUEUE> : | |
1189 // <0, 1> : in compile queue, but not yet compiled | |
1190 // <1, 1> : compiled but queue bit not cleared | |
1191 // <1, 0> : compiled and queue bit cleared | |
1192 // Because we first check the queue bits then check the result bits, | |
1193 // we are assured that we cannot introduce a duplicate task. | |
1194 // Note that if we did the tests in the reverse order (i.e. check | |
1195 // result then check queued bit), we could get the result bit before | |
1196 // the compilation completed, and the queue bit after the compilation | |
1197 // completed, and end up introducing a "duplicate" (redundant) task. | |
1198 // In that case, the compiler thread should first check if a method | |
1199 // has already been compiled before trying to compile it. | |
1200 // NOTE: in the event that there are multiple compiler threads and | |
1201 // there is de-optimization/recompilation, things will get hairy, | |
1202 // and in that case it's best to protect both the testing (here) of | |
1203 // these bits, and their updating (here and elsewhere) under a | |
1204 // common lock. | |
1783 | 1205 task = create_compile_task(queue, |
0 | 1206 compile_id, method, |
1207 osr_bci, comp_level, | |
1208 hot_method, hot_count, comment, | |
1209 blocking); | |
1210 } | |
1211 | |
1212 if (blocking) { | |
1213 wait_for_completion(task); | |
1214 } | |
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1215 #endif |
0 | 1216 } |
1217 | |
1218 | |
1219 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
1783 | 1220 int comp_level, |
0 | 1221 methodHandle hot_method, int hot_count, |
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1222 const char* comment, Thread* THREAD) { |
0 | 1223 // make sure arguments make sense |
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1224 assert(method->method_holder()->oop_is_instance(), "not an instance method"); |
0 | 1225 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); |
1226 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
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1227 assert(!method->method_holder()->is_not_initialized() || method->intrinsic_id() == vmIntrinsics::_CompilerToVMImpl_executeCompiledMethod, "method holder must be initialized"); |
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1228 // allow any levels for WhiteBox |
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1229 assert(WhiteBoxAPI || TieredCompilation || comp_level == CompLevel_highest_tier, "only CompLevel_highest_tier must be used in non-tiered"); |
0 | 1230 // return quickly if possible |
1231 | |
1232 // lock, make sure that the compilation | |
1233 // isn't prohibited in a straightforward way. | |
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1234 AbstractCompiler *comp = CompileBroker::compiler(comp_level); |
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1235 if (comp == NULL || !comp->can_compile_method(method) || |
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1236 compilation_is_prohibited(method, osr_bci, comp_level)) { |
0 | 1237 return NULL; |
1238 } | |
1239 | |
1240 if (osr_bci == InvocationEntryBci) { | |
1241 // standard compilation | |
1242 nmethod* method_code = method->code(); | |
1783 | 1243 if (method_code != NULL) { |
1244 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
1245 return method_code; | |
1246 } | |
0 | 1247 } |
1248 if (method->is_not_compilable(comp_level)) return NULL; | |
1202 | 1249 |
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1250 if (UseCodeCacheFlushing) { |
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1251 nmethod* saved = CodeCache::find_and_remove_saved_code(method()); |
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1252 if (saved != NULL) { |
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1253 method->set_code(method, saved); |
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1254 return saved; |
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1255 } |
1202 | 1256 } |
1257 | |
0 | 1258 } else { |
1259 // osr compilation | |
1260 #ifndef TIERED | |
1261 // seems like an assert of dubious value | |
1783 | 1262 assert(comp_level == CompLevel_highest_tier, |
0 | 1263 "all OSR compiles are assumed to be at a single compilation lavel"); |
1264 #endif // TIERED | |
1783 | 1265 // We accept a higher level osr method |
1266 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
0 | 1267 if (nm != NULL) return nm; |
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1268 if (method->is_not_osr_compilable(comp_level)) return NULL; |
0 | 1269 } |
1270 | |
1271 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
1272 // some prerequisites that are compiler specific | |
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1273 if (comp->is_c2() || comp->is_shark()) { |
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1274 method->constants()->resolve_string_constants(CHECK_AND_CLEAR_NULL); |
0 | 1275 // Resolve all classes seen in the signature of the method |
1276 // we are compiling. | |
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1277 Method::load_signature_classes(method, CHECK_AND_CLEAR_NULL); |
0 | 1278 } |
1279 | |
1280 // If the method is native, do the lookup in the thread requesting | |
1281 // the compilation. Native lookups can load code, which is not | |
1282 // permitted during compilation. | |
1283 // | |
1284 // Note: A native method implies non-osr compilation which is | |
1285 // checked with an assertion at the entry of this method. | |
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1286 if (method->is_native() && !method->is_method_handle_intrinsic()) { |
0 | 1287 bool in_base_library; |
1288 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
1289 if (HAS_PENDING_EXCEPTION) { | |
1290 // In case of an exception looking up the method, we just forget | |
1291 // about it. The interpreter will kick-in and throw the exception. | |
1292 method->set_not_compilable(); // implies is_not_osr_compilable() | |
1293 CLEAR_PENDING_EXCEPTION; | |
1294 return NULL; | |
1295 } | |
1296 assert(method->has_native_function(), "must have native code by now"); | |
1297 } | |
1298 | |
1299 // RedefineClasses() has replaced this method; just return | |
1300 if (method->is_old()) { | |
1301 return NULL; | |
1302 } | |
1303 | |
1304 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
1305 // a lock the compiling thread can not acquire. Prefetch it here. | |
1306 if (JvmtiExport::should_post_compiled_method_load()) { | |
1307 method->jmethod_id(); | |
1308 } | |
1309 | |
1202 | 1310 // If the compiler is shut off due to code cache flushing or otherwise, |
1311 // fail out now so blocking compiles dont hang the java thread | |
1312 if (!should_compile_new_jobs() || (UseCodeCacheFlushing && CodeCache::needs_flushing())) { | |
1783 | 1313 CompilationPolicy::policy()->delay_compilation(method()); |
1202 | 1314 return NULL; |
1315 } | |
1316 | |
0 | 1317 // do the compilation |
1318 if (method->is_native()) { | |
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1319 if (!PreferInterpreterNativeStubs || method->is_method_handle_intrinsic()) { |
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1320 // Acquire our lock. |
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1321 int compile_id; |
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1322 { |
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1323 MutexLocker locker(MethodCompileQueue_lock, THREAD); |
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1324 compile_id = assign_compile_id(method, standard_entry_bci); |
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1325 } |
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1326 (void) AdapterHandlerLibrary::create_native_wrapper(method, compile_id); |
0 | 1327 } else { |
1328 return NULL; | |
1329 } | |
1330 } else { | |
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1331 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, THREAD); |
0 | 1332 } |
1333 | |
1334 // return requested nmethod | |
1783 | 1335 // We accept a higher level osr method |
1336 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
0 | 1337 } |
1338 | |
1339 | |
1340 // ------------------------------------------------------------------ | |
1341 // CompileBroker::compilation_is_complete | |
1342 // | |
1343 // See if compilation of this method is already complete. | |
1344 bool CompileBroker::compilation_is_complete(methodHandle method, | |
1345 int osr_bci, | |
1346 int comp_level) { | |
1347 bool is_osr = (osr_bci != standard_entry_bci); | |
1348 if (is_osr) { | |
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1349 if (method->is_not_osr_compilable(comp_level)) { |
0 | 1350 return true; |
1351 } else { | |
1783 | 1352 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
0 | 1353 return (result != NULL); |
1354 } | |
1355 } else { | |
1356 if (method->is_not_compilable(comp_level)) { | |
1357 return true; | |
1358 } else { | |
1359 nmethod* result = method->code(); | |
1360 if (result == NULL) return false; | |
1783 | 1361 return comp_level == result->comp_level(); |
0 | 1362 } |
1363 } | |
1364 } | |
1365 | |
1366 | |
1367 // ------------------------------------------------------------------ | |
1368 // CompileBroker::compilation_is_in_queue | |
1369 // | |
1370 // See if this compilation is already requested. | |
1371 // | |
1372 // Implementation note: there is only a single "is in queue" bit | |
1373 // for each method. This means that the check below is overly | |
1374 // conservative in the sense that an osr compilation in the queue | |
1375 // will block a normal compilation from entering the queue (and vice | |
1376 // versa). This can be remedied by a full queue search to disambiguate | |
1377 // cases. If it is deemed profitible, this may be done. | |
1378 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
1783 | 1379 int osr_bci) { |
0 | 1380 return method->queued_for_compilation(); |
1381 } | |
1382 | |
1383 // ------------------------------------------------------------------ | |
1384 // CompileBroker::compilation_is_prohibited | |
1385 // | |
1386 // See if this compilation is not allowed. | |
1387 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
1388 bool is_native = method->is_native(); | |
1389 // Some compilers may not support the compilation of natives. | |
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1390 AbstractCompiler *comp = compiler(comp_level); |
0 | 1391 if (is_native && |
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1392 (!CICompileNatives || comp == NULL || !comp->supports_native())) { |
1783 | 1393 method->set_not_compilable_quietly(comp_level); |
0 | 1394 return true; |
1395 } | |
1396 | |
1397 bool is_osr = (osr_bci != standard_entry_bci); | |
1398 // Some compilers may not support on stack replacement. | |
1399 if (is_osr && | |
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1400 (!CICompileOSR || comp == NULL || !comp->supports_osr())) { |
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1401 method->set_not_osr_compilable(comp_level); |
0 | 1402 return true; |
1403 } | |
1404 | |
1405 // The method may be explicitly excluded by the user. | |
1406 bool quietly; | |
1407 if (CompilerOracle::should_exclude(method, quietly)) { | |
1408 if (!quietly) { | |
1409 // This does not happen quietly... | |
1410 ResourceMark rm; | |
1411 tty->print("### Excluding %s:%s", | |
1412 method->is_native() ? "generation of native wrapper" : "compile", | |
1413 (method->is_static() ? " static" : "")); | |
1414 method->print_short_name(tty); | |
1415 tty->cr(); | |
1416 } | |
7998 | 1417 method->set_not_compilable(CompLevel_all, !quietly, "excluded by CompilerOracle"); |
0 | 1418 } |
1419 | |
1420 return false; | |
1421 } | |
1422 | |
1423 | |
1424 // ------------------------------------------------------------------ | |
1425 // CompileBroker::assign_compile_id | |
1426 // | |
1427 // Assign a serialized id number to this compilation request. If the | |
1428 // number falls out of the allowed range, return a 0. OSR | |
1429 // compilations may be numbered separately from regular compilations | |
1430 // if certain debugging flags are used. | |
1431 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
1783 | 1432 assert(MethodCompileQueue_lock->owner() == Thread::current(), |
0 | 1433 "must hold the compilation queue lock"); |
1434 bool is_osr = (osr_bci != standard_entry_bci); | |
1435 uint id; | |
1436 if (CICountOSR && is_osr) { | |
1437 id = ++_osr_compilation_id; | |
1438 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
1439 return id; | |
1440 } | |
1441 } else { | |
1442 id = ++_compilation_id; | |
1443 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
1444 return id; | |
1445 } | |
1446 } | |
1447 | |
1448 // Method was not in the appropriate compilation range. | |
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|
1449 method->set_not_compilable_quietly(); |
0 | 1450 return 0; |
1451 } | |
1452 | |
1453 | |
1454 // ------------------------------------------------------------------ | |
1455 // CompileBroker::is_compile_blocking | |
1456 // | |
1457 // Should the current thread be blocked until this compilation request | |
1458 // has been fulfilled? | |
1459 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
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1460 assert(!InstanceRefKlass::owns_pending_list_lock(JavaThread::current()), "possible deadlock"); |
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1461 return !BackgroundCompilation; |
0 | 1462 } |
1463 | |
1464 | |
1465 // ------------------------------------------------------------------ | |
1466 // CompileBroker::preload_classes | |
1467 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
1468 // Move this code over from c1_Compiler.cpp | |
1469 ShouldNotReachHere(); | |
1470 } | |
1471 | |
1472 | |
1473 // ------------------------------------------------------------------ | |
1474 // CompileBroker::create_compile_task | |
1475 // | |
1476 // Create a CompileTask object representing the current request for | |
1477 // compilation. Add this task to the queue. | |
1478 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
1479 int compile_id, | |
1480 methodHandle method, | |
1481 int osr_bci, | |
1482 int comp_level, | |
1483 methodHandle hot_method, | |
1484 int hot_count, | |
1485 const char* comment, | |
1486 bool blocking) { | |
1487 CompileTask* new_task = allocate_task(); | |
1488 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
1489 hot_method, hot_count, comment, | |
1490 blocking); | |
1491 queue->add(new_task); | |
1492 return new_task; | |
1493 } | |
1494 | |
1495 | |
1496 // ------------------------------------------------------------------ | |
1497 // CompileBroker::allocate_task | |
1498 // | |
1499 // Allocate a CompileTask, from the free list if possible. | |
1500 CompileTask* CompileBroker::allocate_task() { | |
1501 MutexLocker locker(CompileTaskAlloc_lock); | |
1502 CompileTask* task = NULL; | |
1503 if (_task_free_list != NULL) { | |
1504 task = _task_free_list; | |
1505 _task_free_list = task->next(); | |
1506 task->set_next(NULL); | |
1507 } else { | |
1508 task = new CompileTask(); | |
1509 task->set_next(NULL); | |
1510 } | |
1511 return task; | |
1512 } | |
1513 | |
1514 | |
1515 // ------------------------------------------------------------------ | |
1516 // CompileBroker::free_task | |
1517 // | |
1518 // Add a task to the free list. | |
1519 void CompileBroker::free_task(CompileTask* task) { | |
1520 MutexLocker locker(CompileTaskAlloc_lock); | |
1521 task->free(); | |
1522 task->set_next(_task_free_list); | |
1523 _task_free_list = task; | |
1524 } | |
1525 | |
1526 | |
1527 // ------------------------------------------------------------------ | |
1528 // CompileBroker::wait_for_completion | |
1529 // | |
1530 // Wait for the given method CompileTask to complete. | |
1531 void CompileBroker::wait_for_completion(CompileTask* task) { | |
1532 if (CIPrintCompileQueue) { | |
1533 tty->print_cr("BLOCKING FOR COMPILE"); | |
1534 } | |
1535 | |
1536 assert(task->is_blocking(), "can only wait on blocking task"); | |
1537 | |
1538 JavaThread *thread = JavaThread::current(); | |
1539 thread->set_blocked_on_compilation(true); | |
1540 | |
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1541 methodHandle method(thread, task->method()); |
0 | 1542 { |
1543 MutexLocker waiter(task->lock(), thread); | |
1544 | |
1545 while (!task->is_complete()) | |
1546 task->lock()->wait(); | |
1547 } | |
1548 // It is harmless to check this status without the lock, because | |
1549 // completion is a stable property (until the task object is recycled). | |
1550 assert(task->is_complete(), "Compilation should have completed"); | |
1551 assert(task->code_handle() == NULL, "must be reset"); | |
1552 | |
1553 thread->set_blocked_on_compilation(false); | |
1554 | |
1555 // By convention, the waiter is responsible for recycling a | |
1556 // blocking CompileTask. Since there is only one waiter ever | |
1557 // waiting on a CompileTask, we know that no one else will | |
1558 // be using this CompileTask; we can free it. | |
1559 free_task(task); | |
1560 } | |
1561 | |
1562 // ------------------------------------------------------------------ | |
1563 // CompileBroker::compiler_thread_loop | |
1564 // | |
1565 // The main loop run by a CompilerThread. | |
1566 void CompileBroker::compiler_thread_loop() { | |
1567 CompilerThread* thread = CompilerThread::current(); | |
1568 CompileQueue* queue = thread->queue(); | |
1569 | |
1570 // For the thread that initializes the ciObjectFactory | |
1571 // this resource mark holds all the shared objects | |
1572 ResourceMark rm; | |
1573 | |
1574 // First thread to get here will initialize the compiler interface | |
1575 | |
1576 if (!ciObjectFactory::is_initialized()) { | |
1577 ASSERT_IN_VM; | |
1578 MutexLocker only_one (CompileThread_lock, thread); | |
1579 if (!ciObjectFactory::is_initialized()) { | |
1580 ciObjectFactory::initialize(); | |
1581 } | |
1582 } | |
1583 | |
1584 // Open a log. | |
1585 if (LogCompilation) { | |
1586 init_compiler_thread_log(); | |
1587 } | |
1588 CompileLog* log = thread->log(); | |
1589 if (log != NULL) { | |
6843 | 1590 log->begin_elem("start_compile_thread name='%s' thread='" UINTX_FORMAT "' process='%d'", |
1591 thread->name(), | |
0 | 1592 os::current_thread_id(), |
1593 os::current_process_id()); | |
1594 log->stamp(); | |
1595 log->end_elem(); | |
1596 } | |
1597 | |
1598 while (true) { | |
1599 { | |
1600 // We need this HandleMark to avoid leaking VM handles. | |
1601 HandleMark hm(thread); | |
1202 | 1602 |
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1603 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) { |
1202 | 1604 // the code cache is really full |
1605 handle_full_code_cache(); | |
1606 } else if (UseCodeCacheFlushing && CodeCache::needs_flushing()) { | |
1607 // Attempt to start cleaning the code cache while there is still a little headroom | |
1608 NMethodSweeper::handle_full_code_cache(false); | |
0 | 1609 } |
1610 | |
1611 CompileTask* task = queue->get(); | |
1612 | |
1613 // Give compiler threads an extra quanta. They tend to be bursty and | |
1614 // this helps the compiler to finish up the job. | |
1615 if( CompilerThreadHintNoPreempt ) | |
1616 os::hint_no_preempt(); | |
1617 | |
1618 // trace per thread time and compile statistics | |
1619 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); | |
1620 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); | |
1621 | |
1622 // Assign the task to the current thread. Mark this compilation | |
1623 // thread as active for the profiler. | |
1624 CompileTaskWrapper ctw(task); | |
1625 nmethodLocker result_handle; // (handle for the nmethod produced by this task) | |
1626 task->set_code_handle(&result_handle); | |
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1627 methodHandle method(thread, task->method()); |
0 | 1628 |
1629 // Never compile a method if breakpoints are present in it | |
1630 if (method()->number_of_breakpoints() == 0) { | |
1631 // Compile the method. | |
1202 | 1632 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
0 | 1633 #ifdef COMPILER1 |
1634 // Allow repeating compilations for the purpose of benchmarking | |
1635 // compile speed. This is not useful for customers. | |
1636 if (CompilationRepeat != 0) { | |
1637 int compile_count = CompilationRepeat; | |
1638 while (compile_count > 0) { | |
1639 invoke_compiler_on_method(task); | |
1640 nmethod* nm = method->code(); | |
1641 if (nm != NULL) { | |
1642 nm->make_zombie(); | |
1643 method->clear_code(); | |
1644 } | |
1645 compile_count--; | |
1646 } | |
1647 } | |
1648 #endif /* COMPILER1 */ | |
1649 invoke_compiler_on_method(task); | |
1650 } else { | |
1651 // After compilation is disabled, remove remaining methods from queue | |
1652 method->clear_queued_for_compilation(); | |
1653 } | |
1654 } | |
1655 } | |
1656 } | |
1657 } | |
1658 | |
1659 | |
1660 // ------------------------------------------------------------------ | |
1661 // CompileBroker::init_compiler_thread_log | |
1662 // | |
1663 // Set up state required by +LogCompilation. | |
1664 void CompileBroker::init_compiler_thread_log() { | |
1665 CompilerThread* thread = CompilerThread::current(); | |
1666 char fileBuf[4*K]; | |
1667 FILE* fp = NULL; | |
1668 char* file = NULL; | |
1669 intx thread_id = os::current_thread_id(); | |
1670 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
1671 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
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1672 if (dir == NULL) { |
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1673 jio_snprintf(fileBuf, sizeof(fileBuf), "hs_c" UINTX_FORMAT "_pid%u.log", |
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1674 thread_id, os::current_process_id()); |
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1675 } else { |
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1676 jio_snprintf(fileBuf, sizeof(fileBuf), |
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1677 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
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1678 os::file_separator(), thread_id, os::current_process_id()); |
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1679 } |
0 | 1680 fp = fopen(fileBuf, "at"); |
1681 if (fp != NULL) { | |
6197 | 1682 file = NEW_C_HEAP_ARRAY(char, strlen(fileBuf)+1, mtCompiler); |
0 | 1683 strcpy(file, fileBuf); |
1684 break; | |
1685 } | |
1686 } | |
1687 if (fp == NULL) { | |
1688 warning("Cannot open log file: %s", fileBuf); | |
1689 } else { | |
1690 if (LogCompilation && Verbose) | |
1691 tty->print_cr("Opening compilation log %s", file); | |
6197 | 1692 CompileLog* log = new(ResourceObj::C_HEAP, mtCompiler) CompileLog(file, fp, thread_id); |
0 | 1693 thread->init_log(log); |
1694 | |
1695 if (xtty != NULL) { | |
1696 ttyLocker ttyl; | |
1697 | |
1698 // Record any per thread log files | |
1699 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file); | |
1700 } | |
1701 } | |
1702 } | |
1703 | |
1704 // ------------------------------------------------------------------ | |
1705 // CompileBroker::set_should_block | |
1706 // | |
1707 // Set _should_block. | |
1708 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
1709 void CompileBroker::set_should_block() { | |
1710 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
1711 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
1712 #ifndef PRODUCT | |
1713 if (PrintCompilation && (Verbose || WizardMode)) | |
1714 tty->print_cr("notifying compiler thread pool to block"); | |
1715 #endif | |
1716 _should_block = true; | |
1717 } | |
1718 | |
1719 // ------------------------------------------------------------------ | |
1720 // CompileBroker::maybe_block | |
1721 // | |
1722 // Call this from the compiler at convenient points, to poll for _should_block. | |
1723 void CompileBroker::maybe_block() { | |
1724 if (_should_block) { | |
1725 #ifndef PRODUCT | |
1726 if (PrintCompilation && (Verbose || WizardMode)) | |
1727 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
1728 #endif | |
1729 ThreadInVMfromNative tivfn(JavaThread::current()); | |
1730 } | |
1731 } | |
1732 | |
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1733 // wrapper for CodeCache::print_summary() |
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1734 static void codecache_print(bool detailed) |
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1735 { |
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1736 ResourceMark rm; |
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1737 stringStream s; |
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1738 // Dump code cache into a buffer before locking the tty, |
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1739 { |
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1740 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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1741 CodeCache::print_summary(&s, detailed); |
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1742 } |
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1743 ttyLocker ttyl; |
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1744 tty->print_cr(s.as_string()); |
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1745 } |
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1746 |
0 | 1747 // ------------------------------------------------------------------ |
1748 // CompileBroker::invoke_compiler_on_method | |
1749 // | |
1750 // Compile a method. | |
1751 // | |
1752 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
1753 if (PrintCompilation) { | |
1754 ResourceMark rm; | |
1755 task->print_line(); | |
1756 } | |
1757 elapsedTimer time; | |
1758 | |
1759 CompilerThread* thread = CompilerThread::current(); | |
1760 ResourceMark rm(thread); | |
1761 | |
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1762 if (LogEvents) { |
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1763 _compilation_log->log_compile(thread, task); |
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1764 } |
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1765 |
0 | 1766 // Common flags. |
1767 uint compile_id = task->compile_id(); | |
1768 int osr_bci = task->osr_bci(); | |
1769 bool is_osr = (osr_bci != standard_entry_bci); | |
1770 bool should_log = (thread->log() != NULL); | |
1771 bool should_break = false; | |
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1772 int task_level = task->comp_level(); |
0 | 1773 { |
1774 // create the handle inside it's own block so it can't | |
1775 // accidentally be referenced once the thread transitions to | |
1776 // native. The NoHandleMark before the transition should catch | |
1777 // any cases where this occurs in the future. | |
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1778 methodHandle method(thread, task->method()); |
0 | 1779 should_break = check_break_at(method, compile_id, is_osr); |
1780 if (should_log && !CompilerOracle::should_log(method)) { | |
1781 should_log = false; | |
1782 } | |
1783 assert(!method->is_native(), "no longer compile natives"); | |
1784 | |
1785 // Save information about this method in case of failure. | |
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1786 set_last_compile(thread, method, is_osr, task_level); |
0 | 1787 |
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1788 DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task_level), method, |
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1789 compiler_name(task_level)); |
0 | 1790 } |
1791 | |
1792 // Allocate a new set of JNI handles. | |
1793 push_jni_handle_block(); | |
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1794 Method* target_handle = task->method(); |
0 | 1795 int compilable = ciEnv::MethodCompilable; |
1796 { | |
1797 int system_dictionary_modification_counter; | |
1798 { | |
1799 MutexLocker locker(Compile_lock, thread); | |
1800 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
1801 } | |
1802 | |
1803 NoHandleMark nhm; | |
1804 ThreadToNativeFromVM ttn(thread); | |
1805 | |
1806 ciEnv ci_env(task, system_dictionary_modification_counter); | |
1807 if (should_break) { | |
1808 ci_env.set_break_at_compile(true); | |
1809 } | |
1810 if (should_log) { | |
1811 ci_env.set_log(thread->log()); | |
1812 } | |
1813 assert(thread->env() == &ci_env, "set by ci_env"); | |
1814 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
1815 | |
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1816 // Cache Jvmti state |
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1817 ci_env.cache_jvmti_state(); |
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1818 |
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1819 // Cache DTrace flags |
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1820 ci_env.cache_dtrace_flags(); |
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1821 |
0 | 1822 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
1823 | |
1824 TraceTime t1("compilation", &time); | |
1825 | |
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1826 AbstractCompiler *comp = compiler(task_level); |
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1827 if (comp == NULL) { |
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1828 ci_env.record_method_not_compilable("no compiler", !TieredCompilation); |
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1829 } else { |
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1830 comp->compile_method(&ci_env, target, osr_bci); |
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1831 } |
0 | 1832 |
1833 if (!ci_env.failing() && task->code() == NULL) { | |
1834 //assert(false, "compiler should always document failure"); | |
1835 // The compiler elected, without comment, not to register a result. | |
1836 // Do not attempt further compilations of this method. | |
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1837 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
0 | 1838 } |
1839 | |
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1840 // Copy this bit to the enclosing block: |
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1841 compilable = ci_env.compilable(); |
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1842 |
0 | 1843 if (ci_env.failing()) { |
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1844 const char* retry_message = ci_env.retry_message(); |
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1845 if (_compilation_log != NULL) { |
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1846 _compilation_log->log_failure(thread, task, ci_env.failure_reason(), retry_message); |
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1847 } |
0 | 1848 if (PrintCompilation) { |
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1849 FormatBufferResource msg = retry_message != NULL ? |
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1850 err_msg_res("COMPILE SKIPPED: %s (%s)", ci_env.failure_reason(), retry_message) : |
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1851 err_msg_res("COMPILE SKIPPED: %s", ci_env.failure_reason()); |
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1852 task->print_compilation(tty, msg); |
0 | 1853 } |
1854 } else { | |
1855 task->mark_success(); | |
1856 task->set_num_inlined_bytecodes(ci_env.num_inlined_bytecodes()); | |
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1857 if (_compilation_log != NULL) { |
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1858 nmethod* code = task->code(); |
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1859 if (code != NULL) { |
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1860 _compilation_log->log_nmethod(thread, code); |
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1861 } |
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1862 } |
0 | 1863 } |
1864 } | |
1865 pop_jni_handle_block(); | |
1866 | |
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1867 methodHandle method(thread, task->method()); |
0 | 1868 |
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1869 DTRACE_METHOD_COMPILE_END_PROBE(compiler(task_level), method, |
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1870 compiler_name(task_level), task->is_success()); |
0 | 1871 |
1872 collect_statistics(thread, time, task); | |
1873 | |
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1874 if (PrintCompilation && PrintCompilation2) { |
4047 | 1875 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); // print timestamp |
1876 tty->print("%4d ", compile_id); // print compilation number | |
1877 tty->print("%s ", (is_osr ? "%" : " ")); | |
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1878 int code_size = (task->code() == NULL) ? 0 : task->code()->total_size(); |
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1879 tty->print_cr("size: %d time: %d inlined: %d bytes", code_size, (int)time.milliseconds(), task->num_inlined_bytecodes()); |
4047 | 1880 } |
1881 | |
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1882 if (PrintCodeCacheOnCompilation) |
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1883 codecache_print(/* detailed= */ false); |
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1884 |
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1885 // Disable compilation, if required. |
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1886 switch (compilable) { |
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1887 case ciEnv::MethodCompilable_never: |
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1888 if (is_osr) |
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1889 method->set_not_osr_compilable_quietly(); |
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1890 else |
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1891 method->set_not_compilable_quietly(); |
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1892 break; |
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1893 case ciEnv::MethodCompilable_not_at_tier: |
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1894 if (is_osr) |
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1895 method->set_not_osr_compilable_quietly(task_level); |
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1896 else |
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1897 method->set_not_compilable_quietly(task_level); |
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1898 break; |
0 | 1899 } |
1900 | |
1901 // Note that the queued_for_compilation bits are cleared without | |
1902 // protection of a mutex. [They were set by the requester thread, | |
1903 // when adding the task to the complie queue -- at which time the | |
1904 // compile queue lock was held. Subsequently, we acquired the compile | |
1905 // queue lock to get this task off the compile queue; thus (to belabour | |
1906 // the point somewhat) our clearing of the bits must be occurring | |
1907 // only after the setting of the bits. See also 14012000 above. | |
1908 method->clear_queued_for_compilation(); | |
1909 | |
1910 #ifdef ASSERT | |
1911 if (CollectedHeap::fired_fake_oom()) { | |
1912 // The current compile received a fake OOM during compilation so | |
1913 // go ahead and exit the VM since the test apparently succeeded | |
1914 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
1915 vm_exit(0); | |
1916 } | |
1917 #endif | |
1918 } | |
1919 | |
1920 // ------------------------------------------------------------------ | |
1202 | 1921 // CompileBroker::handle_full_code_cache |
1922 // | |
1923 // The CodeCache is full. Print out warning and disable compilation or | |
1924 // try code cache cleaning so compilation can continue later. | |
1925 void CompileBroker::handle_full_code_cache() { | |
1926 UseInterpreter = true; | |
1927 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
1728
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1928 if (xtty != NULL) { |
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1929 ResourceMark rm; |
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1930 stringStream s; |
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1931 // Dump code cache state into a buffer before locking the tty, |
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1932 // because log_state() will use locks causing lock conflicts. |
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1933 CodeCache::log_state(&s); |
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1934 // Lock to prevent tearing |
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1935 ttyLocker ttyl; |
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1936 xtty->begin_elem("code_cache_full"); |
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1937 xtty->print(s.as_string()); |
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1938 xtty->stamp(); |
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1939 xtty->end_elem(); |
1202 | 1940 } |
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1941 warning("CodeCache is full. Compiler has been disabled."); |
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1942 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
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1943 #ifndef PRODUCT |
1202 | 1944 if (CompileTheWorld || ExitOnFullCodeCache) { |
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1945 codecache_print(/* detailed= */ true); |
1202 | 1946 before_exit(JavaThread::current()); |
1947 exit_globals(); // will delete tty | |
1948 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
1949 } | |
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1950 #endif |
1202 | 1951 if (UseCodeCacheFlushing) { |
1952 NMethodSweeper::handle_full_code_cache(true); | |
1953 } else { | |
1954 UseCompiler = false; | |
1955 AlwaysCompileLoopMethods = false; | |
1956 } | |
1957 } | |
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1958 codecache_print(/* detailed= */ true); |
1202 | 1959 } |
1960 | |
1961 // ------------------------------------------------------------------ | |
0 | 1962 // CompileBroker::set_last_compile |
1963 // | |
1964 // Record this compilation for debugging purposes. | |
1965 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
1966 ResourceMark rm; | |
1967 char* method_name = method->name()->as_C_string(); | |
1968 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
1969 char current_method[CompilerCounters::cmname_buffer_length]; | |
1970 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
1971 | |
1972 if (UsePerfData) { | |
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1973 const char* class_name = method->method_holder()->name()->as_C_string(); |
0 | 1974 |
1975 size_t s1len = strlen(class_name); | |
1976 size_t s2len = strlen(method_name); | |
1977 | |
1978 // check if we need to truncate the string | |
1979 if (s1len + s2len + 2 > maxLen) { | |
1980 | |
1981 // the strategy is to lop off the leading characters of the | |
1982 // class name and the trailing characters of the method name. | |
1983 | |
1984 if (s2len + 2 > maxLen) { | |
1985 // lop of the entire class name string, let snprintf handle | |
1986 // truncation of the method name. | |
1987 class_name += s1len; // null string | |
1988 } | |
1989 else { | |
1990 // lop off the extra characters from the front of the class name | |
1991 class_name += ((s1len + s2len + 2) - maxLen); | |
1992 } | |
1993 } | |
1994 | |
1995 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
1996 } | |
1997 | |
1998 if (CICountOSR && is_osr) { | |
1999 _last_compile_type = osr_compile; | |
2000 } else { | |
2001 _last_compile_type = normal_compile; | |
2002 } | |
2003 _last_compile_level = comp_level; | |
2004 | |
2005 if (UsePerfData) { | |
2006 CompilerCounters* counters = thread->counters(); | |
2007 counters->set_current_method(current_method); | |
2008 counters->set_compile_type((jlong)_last_compile_type); | |
2009 } | |
2010 } | |
2011 | |
2012 | |
2013 // ------------------------------------------------------------------ | |
2014 // CompileBroker::push_jni_handle_block | |
2015 // | |
2016 // Push on a new block of JNI handles. | |
2017 void CompileBroker::push_jni_handle_block() { | |
2018 JavaThread* thread = JavaThread::current(); | |
2019 | |
2020 // Allocate a new block for JNI handles. | |
2021 // Inlined code from jni_PushLocalFrame() | |
2022 JNIHandleBlock* java_handles = thread->active_handles(); | |
2023 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
2024 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
2025 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
2026 thread->set_active_handles(compile_handles); | |
2027 } | |
2028 | |
2029 | |
2030 // ------------------------------------------------------------------ | |
2031 // CompileBroker::pop_jni_handle_block | |
2032 // | |
2033 // Pop off the current block of JNI handles. | |
2034 void CompileBroker::pop_jni_handle_block() { | |
2035 JavaThread* thread = JavaThread::current(); | |
2036 | |
2037 // Release our JNI handle block | |
2038 JNIHandleBlock* compile_handles = thread->active_handles(); | |
2039 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
2040 thread->set_active_handles(java_handles); | |
2041 compile_handles->set_pop_frame_link(NULL); | |
2042 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
2043 } | |
2044 | |
2045 | |
2046 // ------------------------------------------------------------------ | |
2047 // CompileBroker::check_break_at | |
2048 // | |
2049 // Should the compilation break at the current compilation. | |
2050 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
2051 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
2052 return true; | |
2053 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
2054 return true; | |
2055 } else { | |
2056 return (compile_id == CIBreakAt); | |
2057 } | |
2058 } | |
2059 | |
2060 // ------------------------------------------------------------------ | |
2061 // CompileBroker::collect_statistics | |
2062 // | |
2063 // Collect statistics about the compilation. | |
2064 | |
2065 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
2066 bool success = task->is_success(); | |
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2067 methodHandle method (thread, task->method()); |
0 | 2068 uint compile_id = task->compile_id(); |
2069 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
2070 nmethod* code = task->code(); | |
2071 CompilerCounters* counters = thread->counters(); | |
2072 | |
2073 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
2074 MutexLocker locker(CompileStatistics_lock); | |
2075 | |
2076 // _perf variables are production performance counters which are | |
2077 // updated regardless of the setting of the CITime and CITimeEach flags | |
2078 // | |
2079 if (!success) { | |
2080 _total_bailout_count++; | |
2081 if (UsePerfData) { | |
2082 _perf_last_failed_method->set_value(counters->current_method()); | |
2083 _perf_last_failed_type->set_value(counters->compile_type()); | |
2084 _perf_total_bailout_count->inc(); | |
2085 } | |
2086 } else if (code == NULL) { | |
2087 if (UsePerfData) { | |
2088 _perf_last_invalidated_method->set_value(counters->current_method()); | |
2089 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
2090 _perf_total_invalidated_count->inc(); | |
2091 } | |
2092 _total_invalidated_count++; | |
2093 } else { | |
2094 // Compilation succeeded | |
2095 | |
2096 // update compilation ticks - used by the implementation of | |
2097 // java.lang.management.CompilationMBean | |
2098 _perf_total_compilation->inc(time.ticks()); | |
2099 | |
2100 if (CITime) { | |
2101 _t_total_compilation.add(time); | |
2102 if (is_osr) { | |
2103 _t_osr_compilation.add(time); | |
2104 _sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
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2105 #ifdef GRAAL |
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2106 compiler(task->comp_level())->stats()->_t_osr_compilation.add(time); |
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2107 compiler(task->comp_level())->stats()->_sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); |
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2108 #endif |
0 | 2109 } else { |
2110 _t_standard_compilation.add(time); | |
2111 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
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2112 #ifdef GRAAL |
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2113 compiler(task->comp_level())->stats()->_t_standard_compilation.add(time); |
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2114 compiler(task->comp_level())->stats()->_sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); |
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2115 #endif |
0 | 2116 } |
2117 } | |
2118 | |
2119 if (UsePerfData) { | |
2120 // save the name of the last method compiled | |
2121 _perf_last_method->set_value(counters->current_method()); | |
2122 _perf_last_compile_type->set_value(counters->compile_type()); | |
2123 _perf_last_compile_size->set_value(method->code_size() + | |
2124 task->num_inlined_bytecodes()); | |
2125 if (is_osr) { | |
2126 _perf_osr_compilation->inc(time.ticks()); | |
2127 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
2128 } else { | |
2129 _perf_standard_compilation->inc(time.ticks()); | |
2130 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
2131 } | |
2132 } | |
2133 | |
2134 if (CITimeEach) { | |
2135 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
2136 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
2137 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
2138 } | |
2139 | |
2140 // Collect counts of successful compilations | |
1748 | 2141 _sum_nmethod_size += code->total_size(); |
2142 _sum_nmethod_code_size += code->insts_size(); | |
0 | 2143 _total_compile_count++; |
2144 | |
2145 if (UsePerfData) { | |
1748 | 2146 _perf_sum_nmethod_size->inc( code->total_size()); |
2147 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
0 | 2148 _perf_total_compile_count->inc(); |
2149 } | |
2150 | |
2151 if (is_osr) { | |
2152 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
2153 _total_osr_compile_count++; | |
2154 } else { | |
2155 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
2156 _total_standard_compile_count++; | |
2157 } | |
2158 } | |
2159 // set the current method for the thread to null | |
2160 if (UsePerfData) counters->set_current_method(""); | |
2161 } | |
2162 | |
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2163 const char* CompileBroker::compiler_name(int comp_level) { |
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2164 AbstractCompiler *comp = CompileBroker::compiler(comp_level); |
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2165 if (comp == NULL) { |
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2166 return "no compiler"; |
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2167 } else { |
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2168 return (comp->name()); |
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2169 } |
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2170 } |
0 | 2171 |
2172 void CompileBroker::print_times() { | |
2173 tty->cr(); | |
2174 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
2175 tty->print_cr("------------------------------------------------"); | |
2176 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
2177 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
2178 tty->print_cr(" Total compilation time : %6.3f s", CompileBroker::_t_total_compilation.seconds()); | |
2179 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", | |
2180 CompileBroker::_t_standard_compilation.seconds(), | |
2181 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count); | |
2182 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 | 2183 |
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2184 AbstractCompiler *comp = compiler(CompLevel_simple); |
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2185 if (comp != NULL) { |
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2186 comp->print_timers(); |
0 | 2187 } |
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2188 comp = compiler(CompLevel_full_optimization); |
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2189 if (comp != NULL) { |
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2190 comp->print_timers(); |
1783 | 2191 } |
0 | 2192 tty->cr(); |
8860 | 2193 tty->print_cr(" Total compiled methods : %6d methods", CompileBroker::_total_compile_count); |
2194 tty->print_cr(" Standard compilation : %6d methods", CompileBroker::_total_standard_compile_count); | |
2195 tty->print_cr(" On stack replacement : %6d methods", CompileBroker::_total_osr_compile_count); | |
0 | 2196 int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled; |
2197 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); | |
2198 tty->print_cr(" Standard compilation : %6d bytes", CompileBroker::_sum_standard_bytes_compiled); | |
2199 tty->print_cr(" On stack replacement : %6d bytes", CompileBroker::_sum_osr_bytes_compiled); | |
7568
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2200 double tcs = CompileBroker::_t_total_compilation.seconds(); |
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2201 int bps = tcs == 0.0 ? 0 : (int)(tcb / tcs); |
0 | 2202 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); |
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2203 #ifdef GRAAL |
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2204 for (unsigned int i = 0; i < sizeof(_compilers) / sizeof(AbstractCompiler*); i++) { |
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2205 AbstractCompiler* comp = _compilers[i]; |
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2206 if (comp != NULL) { |
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2207 CompilerStatistics* stats = comp->stats(); |
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2208 int bytecodes = stats->_sum_osr_bytes_compiled + stats->_sum_standard_bytes_compiled; |
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2209 if (bytecodes != 0) { |
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2210 double seconds = stats->_t_osr_compilation.seconds() + stats->_t_standard_compilation.seconds(); |
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2211 int bps = seconds == 0.0 ? 0 : (int) (bytecodes / seconds); |
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2212 tty->print_cr(" %7s compilation speed: %6d bytes/s {standard: %6.3f s, %6d bytes; osr: %6.3f s, %6d bytes}", |
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2213 comp->name(), bps, stats->_t_standard_compilation.seconds(), stats->_sum_standard_bytes_compiled, |
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2214 stats->_t_osr_compilation.seconds(), stats->_sum_osr_bytes_compiled); |
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2215 } |
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2216 } |
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2217 } |
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2218 #endif |
0 | 2219 tty->cr(); |
2220 tty->print_cr(" nmethod code size : %6d bytes", CompileBroker::_sum_nmethod_code_size); | |
2221 tty->print_cr(" nmethod total size : %6d bytes", CompileBroker::_sum_nmethod_size); | |
2222 } | |
2223 | |
2224 | |
2225 // Debugging output for failure | |
2226 void CompileBroker::print_last_compile() { | |
2227 if ( _last_compile_level != CompLevel_none && | |
2228 compiler(_last_compile_level) != NULL && | |
2229 _last_method_compiled != NULL && | |
2230 _last_compile_type != no_compile) { | |
2231 if (_last_compile_type == osr_compile) { | |
2232 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
2233 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
2234 } else { | |
2235 tty->print_cr("Last parse: %d+++(%d) %s", | |
2236 _compilation_id, _last_compile_level, _last_method_compiled); | |
2237 } | |
2238 } | |
2239 } | |
2240 | |
2241 | |
2242 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
2243 #ifndef PRODUCT | |
2244 st->print_cr("Compiler thread printing unimplemented."); | |
2245 st->cr(); | |
2246 #endif | |
2247 } |