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8005849: JEP 167: Event-Based JVM Tracing

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Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com>
Co-authored-by: Bengt Rutisson <bengt.rutisson@oracle.com>
Co-authored-by: Calvin Cheung <calvin.cheung@oracle.com>
Co-authored-by: Erik Gahlin <erik.gahlin@oracle.com>
Co-authored-by: Erik Helin <erik.helin@oracle.com>
Co-authored-by: Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>
Co-authored-by: Keith McGuigan <keith.mcguigan@oracle.com>
Co-authored-by: Mattias Tobiasson <mattias.tobiasson@oracle.com>
Co-authored-by: Markus Gronlund <markus.gronlund@oracle.com>
Co-authored-by: Mikael Auno <mikael.auno@oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com>
Co-authored-by: Nils Loodin <nils.loodin@oracle.com>
Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
Reviewed-by: acorn, coleenp, sla
This commit is contained in:
Staffan Larsen 2013-06-10 11:30:51 +02:00
parent 6b2c468c35
commit 718f3252f6
195 changed files with 7628 additions and 1484 deletions
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79
hotspot/src/share/vm/gc_implementation/shared/gcTraceTime.cpp Normal file
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/*
* Copyright (c) 2012, 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 "gc_implementation/shared/gcTimer.hpp"
#include "gc_implementation/shared/gcTraceTime.hpp"
#include "runtime/globals.hpp"
#include "runtime/os.hpp"
#include "runtime/safepoint.hpp"
#include "runtime/thread.inline.hpp"
#include "runtime/timer.hpp"
#include "utilities/ostream.hpp"
GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer) :
_title(title), _doit(doit), _print_cr(print_cr), _timer(timer) {
if (_doit || _timer != NULL) {
_start_counter = os::elapsed_counter();
}
if (_timer != NULL) {
assert(SafepointSynchronize::is_at_safepoint(), "Tracing currently only supported at safepoints");
assert(Thread::current()->is_VM_thread(), "Tracing currently only supported from the VM thread");
_timer->register_gc_phase_start(title, _start_counter);
}
if (_doit) {
if (PrintGCTimeStamps) {
gclog_or_tty->stamp();
gclog_or_tty->print(": ");
}
gclog_or_tty->print("[%s", title);
gclog_or_tty->flush();
}
}
GCTraceTime::~GCTraceTime() {
jlong stop_counter = 0;
if (_doit || _timer != NULL) {
stop_counter = os::elapsed_counter();
}
if (_timer != NULL) {
_timer->register_gc_phase_end(stop_counter);
}
if (_doit) {
double seconds = TimeHelper::counter_to_seconds(stop_counter - _start_counter);
if (_print_cr) {
gclog_or_tty->print_cr(", %3.7f secs]", seconds);
} else {
gclog_or_tty->print(", %3.7f secs]", seconds);
}
gclog_or_tty->flush();
}
}