/* * Copyright 2003-2010 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ # include "incls/_precompiled.incl" # include "incls/_runtimeService.cpp.incl" HS_DTRACE_PROBE_DECL(hs_private, safepoint__begin); HS_DTRACE_PROBE_DECL(hs_private, safepoint__end); 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'; #ifdef KERNEL capabilities[1] = '1'; #endif // KERNEL PerfDataManager::create_string_constant(SUN_RT, "jvmCapabilities", capabilities, CHECK); } } void RuntimeService::record_safepoint_begin() { HS_DTRACE_PROBE(hs_private, safepoint__begin); // Print the time interval in which the app was executing if (PrintGCApplicationConcurrentTime) { 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() { HS_DTRACE_PROBE(hs_private, safepoint__end); // Print the time interval for which the app was stopped // during the current safepoint operation. if (PrintGCApplicationStoppedTime) { 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(); } }