| /* |
| * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "classfile/classLoader.hpp" |
| #include "services/attachListener.hpp" |
| #include "services/management.hpp" |
| #include "services/runtimeService.hpp" |
| #include "utilities/dtrace.hpp" |
| #include "utilities/exceptions.hpp" |
| #include "utilities/macros.hpp" |
| |
| #ifndef USDT2 |
| HS_DTRACE_PROBE_DECL(hs_private, safepoint__begin); |
| HS_DTRACE_PROBE_DECL(hs_private, safepoint__end); |
| #endif /* !USDT2 */ |
| |
| #if INCLUDE_MANAGEMENT |
| TimeStamp RuntimeService::_app_timer; |
| TimeStamp RuntimeService::_safepoint_timer; |
| PerfCounter* RuntimeService::_sync_time_ticks = NULL; |
| PerfCounter* RuntimeService::_total_safepoints = NULL; |
| PerfCounter* RuntimeService::_safepoint_time_ticks = NULL; |
| PerfCounter* RuntimeService::_application_time_ticks = NULL; |
| PerfCounter* RuntimeService::_thread_interrupt_signaled_count = NULL; |
| PerfCounter* RuntimeService::_interrupted_before_count = NULL; |
| PerfCounter* RuntimeService::_interrupted_during_count = NULL; |
| |
| void RuntimeService::init() { |
| // Make sure the VM version is initialized |
| Abstract_VM_Version::initialize(); |
| |
| if (UsePerfData) { |
| EXCEPTION_MARK; |
| |
| _sync_time_ticks = |
| PerfDataManager::create_counter(SUN_RT, "safepointSyncTime", |
| PerfData::U_Ticks, CHECK); |
| |
| _total_safepoints = |
| PerfDataManager::create_counter(SUN_RT, "safepoints", |
| PerfData::U_Events, CHECK); |
| |
| _safepoint_time_ticks = |
| PerfDataManager::create_counter(SUN_RT, "safepointTime", |
| PerfData::U_Ticks, CHECK); |
| |
| _application_time_ticks = |
| PerfDataManager::create_counter(SUN_RT, "applicationTime", |
| PerfData::U_Ticks, CHECK); |
| |
| |
| // create performance counters for jvm_version and its capabilities |
| PerfDataManager::create_constant(SUN_RT, "jvmVersion", PerfData::U_None, |
| (jlong) Abstract_VM_Version::jvm_version(), CHECK); |
| |
| // I/O interruption related counters |
| |
| // thread signaling via os::interrupt() |
| |
| _thread_interrupt_signaled_count = |
| PerfDataManager::create_counter(SUN_RT, |
| "threadInterruptSignaled", PerfData::U_Events, CHECK); |
| |
| // OS_INTRPT via "check before" in _INTERRUPTIBLE |
| |
| _interrupted_before_count = |
| PerfDataManager::create_counter(SUN_RT, "interruptedBeforeIO", |
| PerfData::U_Events, CHECK); |
| |
| // OS_INTRPT via "check during" in _INTERRUPTIBLE |
| |
| _interrupted_during_count = |
| PerfDataManager::create_counter(SUN_RT, "interruptedDuringIO", |
| PerfData::U_Events, CHECK); |
| |
| // The capabilities counter is a binary representation of the VM capabilities in string. |
| // This string respresentation simplifies the implementation of the client side |
| // to parse the value. |
| char capabilities[65]; |
| size_t len = sizeof(capabilities); |
| memset((void*) capabilities, '0', len); |
| capabilities[len-1] = '\0'; |
| capabilities[0] = AttachListener::is_attach_supported() ? '1' : '0'; |
| #if INCLUDE_SERVICES |
| capabilities[1] = '1'; |
| #endif // INCLUDE_SERVICES |
| PerfDataManager::create_string_constant(SUN_RT, "jvmCapabilities", |
| capabilities, CHECK); |
| } |
| } |
| |
| void RuntimeService::record_safepoint_begin() { |
| #ifndef USDT2 |
| HS_DTRACE_PROBE(hs_private, safepoint__begin); |
| #else /* USDT2 */ |
| HS_PRIVATE_SAFEPOINT_BEGIN(); |
| #endif /* USDT2 */ |
| |
| // Print the time interval in which the app was executing |
| if (PrintGCApplicationConcurrentTime && _app_timer.is_updated()) { |
| gclog_or_tty->date_stamp(PrintGCDateStamps); |
| gclog_or_tty->stamp(PrintGCTimeStamps); |
| gclog_or_tty->print_cr("Application time: %3.7f seconds", |
| last_application_time_sec()); |
| } |
| |
| // update the time stamp to begin recording safepoint time |
| _safepoint_timer.update(); |
| if (UsePerfData) { |
| _total_safepoints->inc(); |
| if (_app_timer.is_updated()) { |
| _application_time_ticks->inc(_app_timer.ticks_since_update()); |
| } |
| } |
| } |
| |
| void RuntimeService::record_safepoint_synchronized() { |
| if (UsePerfData) { |
| _sync_time_ticks->inc(_safepoint_timer.ticks_since_update()); |
| } |
| } |
| |
| void RuntimeService::record_safepoint_end() { |
| #ifndef USDT2 |
| HS_DTRACE_PROBE(hs_private, safepoint__end); |
| #else /* USDT2 */ |
| HS_PRIVATE_SAFEPOINT_END(); |
| #endif /* USDT2 */ |
| |
| // Print the time interval for which the app was stopped |
| // during the current safepoint operation. |
| if (PrintGCApplicationStoppedTime) { |
| gclog_or_tty->date_stamp(PrintGCDateStamps); |
| gclog_or_tty->stamp(PrintGCTimeStamps); |
| gclog_or_tty->print_cr("Total time for which application threads " |
| "were stopped: %3.7f seconds", |
| last_safepoint_time_sec()); |
| } |
| |
| // update the time stamp to begin recording app time |
| _app_timer.update(); |
| if (UsePerfData) { |
| _safepoint_time_ticks->inc(_safepoint_timer.ticks_since_update()); |
| } |
| } |
| |
| void RuntimeService::record_application_start() { |
| // update the time stamp to begin recording app time |
| _app_timer.update(); |
| } |
| |
| // Don't need to record application end because we currently |
| // exit at a safepoint and record_safepoint_begin() handles updating |
| // the application time counter at VM exit. |
| |
| jlong RuntimeService::safepoint_sync_time_ms() { |
| return UsePerfData ? |
| Management::ticks_to_ms(_sync_time_ticks->get_value()) : -1; |
| } |
| |
| jlong RuntimeService::safepoint_count() { |
| return UsePerfData ? |
| _total_safepoints->get_value() : -1; |
| } |
| jlong RuntimeService::safepoint_time_ms() { |
| return UsePerfData ? |
| Management::ticks_to_ms(_safepoint_time_ticks->get_value()) : -1; |
| } |
| |
| jlong RuntimeService::application_time_ms() { |
| return UsePerfData ? |
| Management::ticks_to_ms(_application_time_ticks->get_value()) : -1; |
| } |
| |
| void RuntimeService::record_interrupted_before_count() { |
| if (UsePerfData) { |
| _interrupted_before_count->inc(); |
| } |
| } |
| |
| void RuntimeService::record_interrupted_during_count() { |
| if (UsePerfData) { |
| _interrupted_during_count->inc(); |
| } |
| } |
| |
| void RuntimeService::record_thread_interrupt_signaled_count() { |
| if (UsePerfData) { |
| _thread_interrupt_signaled_count->inc(); |
| } |
| } |
| |
| #endif // INCLUDE_MANAGEMENT |