Fri, 11 Feb 2011 14:15:16 +0100
7018257: jmm_DumpThreads allocates into permgen
Summary: Don't allocate in permgen
Reviewed-by: ysr, sla
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_SERVICES_MANAGEMENT_HPP |
stefank@2314 | 26 | #define SHARE_VM_SERVICES_MANAGEMENT_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "memory/allocation.hpp" |
stefank@2314 | 29 | #include "runtime/handles.hpp" |
stefank@2314 | 30 | #include "runtime/timer.hpp" |
stefank@2314 | 31 | #include "services/jmm.h" |
stefank@2314 | 32 | |
duke@435 | 33 | class OopClosure; |
duke@435 | 34 | class ThreadSnapshot; |
duke@435 | 35 | |
duke@435 | 36 | class Management : public AllStatic { |
duke@435 | 37 | private: |
duke@435 | 38 | static PerfVariable* _begin_vm_creation_time; |
duke@435 | 39 | static PerfVariable* _end_vm_creation_time; |
duke@435 | 40 | static PerfVariable* _vm_init_done_time; |
duke@435 | 41 | static jmmOptionalSupport _optional_support; |
duke@435 | 42 | static TimeStamp _stamp; // Timestamp since vm init done time |
duke@435 | 43 | |
duke@435 | 44 | // Management klasses |
duke@435 | 45 | static klassOop _sensor_klass; |
duke@435 | 46 | static klassOop _threadInfo_klass; |
duke@435 | 47 | static klassOop _memoryUsage_klass; |
duke@435 | 48 | static klassOop _memoryPoolMXBean_klass; |
duke@435 | 49 | static klassOop _memoryManagerMXBean_klass; |
duke@435 | 50 | static klassOop _garbageCollectorMXBean_klass; |
duke@435 | 51 | static klassOop _managementFactory_klass; |
duke@435 | 52 | |
coleenp@2497 | 53 | static klassOop load_and_initialize_klass(Symbol* sh, TRAPS); |
duke@435 | 54 | |
duke@435 | 55 | public: |
duke@435 | 56 | static void init(); |
duke@435 | 57 | static void initialize(TRAPS); |
duke@435 | 58 | |
duke@435 | 59 | static jlong ticks_to_ms(jlong ticks); |
duke@435 | 60 | static jlong timestamp(); |
duke@435 | 61 | |
duke@435 | 62 | static void oops_do(OopClosure* f); |
duke@435 | 63 | static void* get_jmm_interface(int version); |
duke@435 | 64 | static void get_optional_support(jmmOptionalSupport* support); |
duke@435 | 65 | |
duke@435 | 66 | static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array); |
duke@435 | 67 | |
duke@435 | 68 | static void record_vm_startup_time(jlong begin, jlong duration); |
duke@435 | 69 | static void record_vm_init_completed() { |
duke@435 | 70 | // Initialize the timestamp to get the current time |
duke@435 | 71 | _vm_init_done_time->set_value(os::javaTimeMillis()); |
duke@435 | 72 | |
duke@435 | 73 | // Update the timestamp to the vm init done time |
duke@435 | 74 | _stamp.update(); |
duke@435 | 75 | } |
duke@435 | 76 | |
duke@435 | 77 | static jlong vm_init_done_time() { |
duke@435 | 78 | return _vm_init_done_time->get_value(); |
duke@435 | 79 | } |
duke@435 | 80 | |
duke@435 | 81 | // methods to return a klassOop. |
duke@435 | 82 | static klassOop java_lang_management_ThreadInfo_klass(TRAPS); |
duke@435 | 83 | static klassOop java_lang_management_MemoryUsage_klass(TRAPS); |
duke@435 | 84 | static klassOop java_lang_management_MemoryPoolMXBean_klass(TRAPS); |
duke@435 | 85 | static klassOop java_lang_management_MemoryManagerMXBean_klass(TRAPS); |
duke@435 | 86 | static klassOop java_lang_management_GarbageCollectorMXBean_klass(TRAPS); |
duke@435 | 87 | static klassOop sun_management_Sensor_klass(TRAPS); |
duke@435 | 88 | static klassOop sun_management_ManagementFactory_klass(TRAPS); |
duke@435 | 89 | |
duke@435 | 90 | static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS); |
duke@435 | 91 | static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS); |
duke@435 | 92 | }; |
duke@435 | 93 | |
duke@435 | 94 | class TraceVmCreationTime : public StackObj { |
duke@435 | 95 | private: |
duke@435 | 96 | TimeStamp _timer; |
duke@435 | 97 | jlong _begin_time; |
duke@435 | 98 | |
duke@435 | 99 | public: |
duke@435 | 100 | TraceVmCreationTime() {} |
duke@435 | 101 | ~TraceVmCreationTime() {} |
duke@435 | 102 | |
duke@435 | 103 | void start() |
duke@435 | 104 | { _timer.update_to(0); _begin_time = os::javaTimeMillis(); } |
duke@435 | 105 | |
duke@435 | 106 | /** |
duke@435 | 107 | * Only call this if initialization completes successfully; it will |
duke@435 | 108 | * crash if PerfMemory_exit() has already been called (usually by |
duke@435 | 109 | * os::shutdown() when there was an initialization failure). |
duke@435 | 110 | */ |
duke@435 | 111 | void end() |
duke@435 | 112 | { Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); } |
duke@435 | 113 | |
duke@435 | 114 | }; |
stefank@2314 | 115 | |
stefank@2314 | 116 | #endif // SHARE_VM_SERVICES_MANAGEMENT_HPP |