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