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/*
* Copyright (c) 2003, 2010, 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 "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();
}
}
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