Sun, 03 Feb 2013 22:28:08 +0400
8002048: Protocol to discovery of manageable Java processes on a network
Summary: Introduce a protocol to discover manageble Java instances across a network subnet, JDP
Reviewed-by: sla, dfuchs
duke@435 | 1 | /* |
jprovino@4165 | 2 | * Copyright (c) 2003, 2012, 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 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "classfile/classLoader.hpp" |
stefank@2314 | 27 | #include "services/attachListener.hpp" |
stefank@2314 | 28 | #include "services/management.hpp" |
stefank@2314 | 29 | #include "services/runtimeService.hpp" |
stefank@2314 | 30 | #include "utilities/dtrace.hpp" |
stefank@2314 | 31 | #include "utilities/exceptions.hpp" |
duke@435 | 32 | |
dcubed@3202 | 33 | #ifndef USDT2 |
duke@435 | 34 | HS_DTRACE_PROBE_DECL(hs_private, safepoint__begin); |
duke@435 | 35 | HS_DTRACE_PROBE_DECL(hs_private, safepoint__end); |
dcubed@3202 | 36 | #endif /* !USDT2 */ |
duke@435 | 37 | |
jprovino@4165 | 38 | #if INCLUDE_MANAGEMENT |
duke@435 | 39 | TimeStamp RuntimeService::_app_timer; |
duke@435 | 40 | TimeStamp RuntimeService::_safepoint_timer; |
duke@435 | 41 | PerfCounter* RuntimeService::_sync_time_ticks = NULL; |
duke@435 | 42 | PerfCounter* RuntimeService::_total_safepoints = NULL; |
duke@435 | 43 | PerfCounter* RuntimeService::_safepoint_time_ticks = NULL; |
duke@435 | 44 | PerfCounter* RuntimeService::_application_time_ticks = NULL; |
duke@435 | 45 | PerfCounter* RuntimeService::_thread_interrupt_signaled_count = NULL; |
duke@435 | 46 | PerfCounter* RuntimeService::_interrupted_before_count = NULL; |
duke@435 | 47 | PerfCounter* RuntimeService::_interrupted_during_count = NULL; |
duke@435 | 48 | |
duke@435 | 49 | void RuntimeService::init() { |
duke@435 | 50 | // Make sure the VM version is initialized |
duke@435 | 51 | Abstract_VM_Version::initialize(); |
duke@435 | 52 | |
duke@435 | 53 | if (UsePerfData) { |
duke@435 | 54 | EXCEPTION_MARK; |
duke@435 | 55 | |
duke@435 | 56 | _sync_time_ticks = |
duke@435 | 57 | PerfDataManager::create_counter(SUN_RT, "safepointSyncTime", |
duke@435 | 58 | PerfData::U_Ticks, CHECK); |
duke@435 | 59 | |
duke@435 | 60 | _total_safepoints = |
duke@435 | 61 | PerfDataManager::create_counter(SUN_RT, "safepoints", |
duke@435 | 62 | PerfData::U_Events, CHECK); |
duke@435 | 63 | |
duke@435 | 64 | _safepoint_time_ticks = |
duke@435 | 65 | PerfDataManager::create_counter(SUN_RT, "safepointTime", |
duke@435 | 66 | PerfData::U_Ticks, CHECK); |
duke@435 | 67 | |
duke@435 | 68 | _application_time_ticks = |
duke@435 | 69 | PerfDataManager::create_counter(SUN_RT, "applicationTime", |
duke@435 | 70 | PerfData::U_Ticks, CHECK); |
duke@435 | 71 | |
duke@435 | 72 | |
duke@435 | 73 | // create performance counters for jvm_version and its capabilities |
duke@435 | 74 | PerfDataManager::create_constant(SUN_RT, "jvmVersion", PerfData::U_None, |
duke@435 | 75 | (jlong) Abstract_VM_Version::jvm_version(), CHECK); |
duke@435 | 76 | |
duke@435 | 77 | // I/O interruption related counters |
duke@435 | 78 | |
duke@435 | 79 | // thread signaling via os::interrupt() |
duke@435 | 80 | |
duke@435 | 81 | _thread_interrupt_signaled_count = |
duke@435 | 82 | PerfDataManager::create_counter(SUN_RT, |
duke@435 | 83 | "threadInterruptSignaled", PerfData::U_Events, CHECK); |
duke@435 | 84 | |
duke@435 | 85 | // OS_INTRPT via "check before" in _INTERRUPTIBLE |
duke@435 | 86 | |
duke@435 | 87 | _interrupted_before_count = |
duke@435 | 88 | PerfDataManager::create_counter(SUN_RT, "interruptedBeforeIO", |
duke@435 | 89 | PerfData::U_Events, CHECK); |
duke@435 | 90 | |
duke@435 | 91 | // OS_INTRPT via "check during" in _INTERRUPTIBLE |
duke@435 | 92 | |
duke@435 | 93 | _interrupted_during_count = |
duke@435 | 94 | PerfDataManager::create_counter(SUN_RT, "interruptedDuringIO", |
duke@435 | 95 | PerfData::U_Events, CHECK); |
duke@435 | 96 | |
duke@435 | 97 | // The capabilities counter is a binary representation of the VM capabilities in string. |
duke@435 | 98 | // This string respresentation simplifies the implementation of the client side |
duke@435 | 99 | // to parse the value. |
duke@435 | 100 | char capabilities[65]; |
duke@435 | 101 | size_t len = sizeof(capabilities); |
duke@435 | 102 | memset((void*) capabilities, '0', len); |
duke@435 | 103 | capabilities[len-1] = '\0'; |
duke@435 | 104 | capabilities[0] = AttachListener::is_attach_supported() ? '1' : '0'; |
jprovino@4165 | 105 | #if INCLUDE_SERVICES |
duke@435 | 106 | capabilities[1] = '1'; |
jprovino@4165 | 107 | #endif // INCLUDE_SERVICES |
duke@435 | 108 | PerfDataManager::create_string_constant(SUN_RT, "jvmCapabilities", |
duke@435 | 109 | capabilities, CHECK); |
duke@435 | 110 | } |
duke@435 | 111 | } |
duke@435 | 112 | |
duke@435 | 113 | void RuntimeService::record_safepoint_begin() { |
dcubed@3202 | 114 | #ifndef USDT2 |
duke@435 | 115 | HS_DTRACE_PROBE(hs_private, safepoint__begin); |
dcubed@3202 | 116 | #else /* USDT2 */ |
dcubed@3202 | 117 | HS_PRIVATE_SAFEPOINT_BEGIN(); |
dcubed@3202 | 118 | #endif /* USDT2 */ |
johnc@1695 | 119 | |
johnc@1695 | 120 | // Print the time interval in which the app was executing |
johnc@1695 | 121 | if (PrintGCApplicationConcurrentTime) { |
johnc@1695 | 122 | gclog_or_tty->print_cr("Application time: %3.7f seconds", |
johnc@1695 | 123 | last_application_time_sec()); |
johnc@1695 | 124 | } |
johnc@1695 | 125 | |
duke@435 | 126 | // update the time stamp to begin recording safepoint time |
duke@435 | 127 | _safepoint_timer.update(); |
duke@435 | 128 | if (UsePerfData) { |
duke@435 | 129 | _total_safepoints->inc(); |
duke@435 | 130 | if (_app_timer.is_updated()) { |
duke@435 | 131 | _application_time_ticks->inc(_app_timer.ticks_since_update()); |
duke@435 | 132 | } |
duke@435 | 133 | } |
duke@435 | 134 | } |
duke@435 | 135 | |
duke@435 | 136 | void RuntimeService::record_safepoint_synchronized() { |
duke@435 | 137 | if (UsePerfData) { |
duke@435 | 138 | _sync_time_ticks->inc(_safepoint_timer.ticks_since_update()); |
duke@435 | 139 | } |
duke@435 | 140 | } |
duke@435 | 141 | |
duke@435 | 142 | void RuntimeService::record_safepoint_end() { |
dcubed@3202 | 143 | #ifndef USDT2 |
duke@435 | 144 | HS_DTRACE_PROBE(hs_private, safepoint__end); |
dcubed@3202 | 145 | #else /* USDT2 */ |
dcubed@3202 | 146 | HS_PRIVATE_SAFEPOINT_END(); |
dcubed@3202 | 147 | #endif /* USDT2 */ |
johnc@1695 | 148 | |
johnc@1695 | 149 | // Print the time interval for which the app was stopped |
johnc@1695 | 150 | // during the current safepoint operation. |
johnc@1695 | 151 | if (PrintGCApplicationStoppedTime) { |
johnc@1695 | 152 | gclog_or_tty->print_cr("Total time for which application threads " |
johnc@1695 | 153 | "were stopped: %3.7f seconds", |
johnc@1695 | 154 | last_safepoint_time_sec()); |
johnc@1695 | 155 | } |
johnc@1695 | 156 | |
duke@435 | 157 | // update the time stamp to begin recording app time |
duke@435 | 158 | _app_timer.update(); |
duke@435 | 159 | if (UsePerfData) { |
duke@435 | 160 | _safepoint_time_ticks->inc(_safepoint_timer.ticks_since_update()); |
duke@435 | 161 | } |
duke@435 | 162 | } |
duke@435 | 163 | |
duke@435 | 164 | void RuntimeService::record_application_start() { |
duke@435 | 165 | // update the time stamp to begin recording app time |
duke@435 | 166 | _app_timer.update(); |
duke@435 | 167 | } |
duke@435 | 168 | |
duke@435 | 169 | // Don't need to record application end because we currently |
duke@435 | 170 | // exit at a safepoint and record_safepoint_begin() handles updating |
duke@435 | 171 | // the application time counter at VM exit. |
duke@435 | 172 | |
duke@435 | 173 | jlong RuntimeService::safepoint_sync_time_ms() { |
duke@435 | 174 | return UsePerfData ? |
duke@435 | 175 | Management::ticks_to_ms(_sync_time_ticks->get_value()) : -1; |
duke@435 | 176 | } |
duke@435 | 177 | |
duke@435 | 178 | jlong RuntimeService::safepoint_count() { |
duke@435 | 179 | return UsePerfData ? |
duke@435 | 180 | _total_safepoints->get_value() : -1; |
duke@435 | 181 | } |
duke@435 | 182 | jlong RuntimeService::safepoint_time_ms() { |
duke@435 | 183 | return UsePerfData ? |
duke@435 | 184 | Management::ticks_to_ms(_safepoint_time_ticks->get_value()) : -1; |
duke@435 | 185 | } |
duke@435 | 186 | |
duke@435 | 187 | jlong RuntimeService::application_time_ms() { |
duke@435 | 188 | return UsePerfData ? |
duke@435 | 189 | Management::ticks_to_ms(_application_time_ticks->get_value()) : -1; |
duke@435 | 190 | } |
duke@435 | 191 | |
duke@435 | 192 | void RuntimeService::record_interrupted_before_count() { |
duke@435 | 193 | if (UsePerfData) { |
duke@435 | 194 | _interrupted_before_count->inc(); |
duke@435 | 195 | } |
duke@435 | 196 | } |
duke@435 | 197 | |
duke@435 | 198 | void RuntimeService::record_interrupted_during_count() { |
duke@435 | 199 | if (UsePerfData) { |
duke@435 | 200 | _interrupted_during_count->inc(); |
duke@435 | 201 | } |
duke@435 | 202 | } |
duke@435 | 203 | |
duke@435 | 204 | void RuntimeService::record_thread_interrupt_signaled_count() { |
duke@435 | 205 | if (UsePerfData) { |
duke@435 | 206 | _thread_interrupt_signaled_count->inc(); |
duke@435 | 207 | } |
duke@435 | 208 | } |
jprovino@4165 | 209 | |
jprovino@4165 | 210 | #endif // INCLUDE_MANAGEMENT |