Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/memprofiler.cpp @ 10241:d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
Summary: Make processing of minimum, initial and maximum heap size more intiutive by removing previous limitations on allowed values, and make error reporting consistent. Further, fix errors in ergonomic heap sizing.
Reviewed-by: johnc, jwilhelm, tamao
| author | tschatzl |
|---|---|
| date | Mon, 06 May 2013 17:19:42 +0200 |
| parents | f34d701e952e |
| children |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1998, 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 "code/codeCache.hpp" | |
| 28 #include "gc_interface/collectedHeap.inline.hpp" | |
| 29 #include "interpreter/oopMapCache.hpp" | |
| 30 #include "memory/generation.hpp" | |
| 31 #include "memory/resourceArea.hpp" | |
| 32 #include "runtime/handles.inline.hpp" | |
| 33 #include "runtime/jniHandles.hpp" | |
| 34 #include "runtime/memprofiler.hpp" | |
| 35 #include "runtime/mutexLocker.hpp" | |
| 36 #include "runtime/os.hpp" | |
| 37 #include "runtime/task.hpp" | |
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38 #include "runtime/thread.inline.hpp" |
| 1972 | 39 #include "runtime/vmThread.hpp" |
| 0 | 40 |
| 41 #ifndef PRODUCT | |
| 42 | |
| 43 // -------------------------------------------------------- | |
| 44 // MemProfilerTask | |
| 45 | |
| 46 class MemProfilerTask : public PeriodicTask { | |
| 47 public: | |
| 48 MemProfilerTask(int interval_time) : PeriodicTask(interval_time) {} | |
| 49 void task(); | |
| 50 }; | |
| 51 | |
| 52 | |
| 53 void MemProfilerTask::task() { | |
| 54 // Get thread lock to provide mutual exclusion, and so we can iterate safely over the thread list. | |
| 55 MutexLocker mu(Threads_lock); | |
| 56 MemProfiler::do_trace(); | |
| 57 } | |
| 58 | |
| 59 | |
| 60 //---------------------------------------------------------- | |
| 61 // Implementation of MemProfiler | |
| 62 | |
| 63 MemProfilerTask* MemProfiler::_task = NULL; | |
| 64 FILE* MemProfiler::_log_fp = NULL; | |
| 65 | |
| 66 | |
| 67 bool MemProfiler::is_active() { | |
| 68 return _task != NULL; | |
| 69 } | |
| 70 | |
| 71 | |
| 72 void MemProfiler::engage() { | |
| 73 const char *log_name = "mprofile.log"; | |
| 74 if (!is_active()) { | |
| 75 // Create log file | |
| 76 _log_fp = fopen(log_name , "w+"); | |
| 77 if (_log_fp == NULL) { | |
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78 fatal(err_msg("MemProfiler: Cannot create log file: %s", log_name)); |
| 0 | 79 } |
| 80 fprintf(_log_fp, "MemProfiler: sizes are in Kb, time is in seconds since startup\n\n"); | |
| 81 fprintf(_log_fp, " time, #thr, #cls, heap, heap, perm, perm, code, hndls, rescs, oopmp\n"); | |
| 82 fprintf(_log_fp, " used, total, used, total, total, total, total, total\n"); | |
| 83 fprintf(_log_fp, "--------------------------------------------------------------------------\n"); | |
| 84 | |
| 85 _task = new MemProfilerTask(MemProfilingInterval); | |
| 86 _task->enroll(); | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 | |
| 91 void MemProfiler::disengage() { | |
| 92 if (!is_active()) return; | |
| 93 // Do one last trace at disengage time | |
| 94 do_trace(); | |
| 95 | |
| 96 // Close logfile | |
| 97 fprintf(_log_fp, "MemProfiler detached\n"); | |
| 98 fclose(_log_fp); | |
| 99 | |
| 100 // remove MemProfilerTask | |
| 101 assert(_task != NULL, "sanity check"); | |
| 102 _task->disenroll(); | |
| 103 delete _task; | |
| 104 _task = NULL; | |
| 105 } | |
| 106 | |
| 107 | |
| 108 void MemProfiler::do_trace() { | |
| 109 // Calculate thread local sizes | |
| 110 size_t handles_memory_usage = VMThread::vm_thread()->handle_area()->size_in_bytes(); | |
| 111 size_t resource_memory_usage = VMThread::vm_thread()->resource_area()->size_in_bytes(); | |
| 112 JavaThread *cur = Threads::first(); | |
| 113 while (cur != NULL) { | |
| 114 handles_memory_usage += cur->handle_area()->size_in_bytes(); | |
| 115 resource_memory_usage += cur->resource_area()->size_in_bytes(); | |
| 116 cur = cur->next(); | |
| 117 } | |
| 118 | |
| 119 // Print trace line in log | |
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120 fprintf(_log_fp, "%6.1f,%5d,%5d," UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) ",", |
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121 os::elapsedTime(), |
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122 Threads::number_of_threads(), |
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123 SystemDictionary::number_of_classes(), |
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124 Universe::heap()->used() / K, |
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125 Universe::heap()->capacity() / K); |
| 0 | 126 |
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127 fprintf(_log_fp, UINTX_FORMAT_W(6) ",", CodeCache::capacity() / K); |
| 0 | 128 |
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129 fprintf(_log_fp, UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) ",%6ld\n", |
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130 handles_memory_usage / K, |
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131 resource_memory_usage / K, |
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132 OopMapCache::memory_usage() / K); |
| 0 | 133 fflush(_log_fp); |
| 134 } | |
| 135 | |
| 136 #endif |