84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
/*
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* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "gc/shared/gcTimer.hpp"
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#include "gc/shared/gcTrace.hpp"
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#include "gc/shared/gcTraceTime.hpp"
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#include "runtime/globals.hpp"
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#include "runtime/os.hpp"
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#include "runtime/safepoint.hpp"
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#include "runtime/thread.inline.hpp"
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#include "runtime/timer.hpp"
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#include "utilities/ostream.hpp"
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#include "utilities/ticks.inline.hpp"
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GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer, GCId gc_id) :
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_title(title), _doit(doit), _print_cr(print_cr), _timer(timer), _start_counter() {
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if (_doit || _timer != NULL) {
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_start_counter.stamp();
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}
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if (_timer != NULL) {
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assert(SafepointSynchronize::is_at_safepoint(), "Tracing currently only supported at safepoints");
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assert(Thread::current()->is_VM_thread(), "Tracing currently only supported from the VM thread");
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_timer->register_gc_phase_start(title, _start_counter);
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}
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if (_doit) {
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gclog_or_tty->date_stamp(PrintGCDateStamps);
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gclog_or_tty->stamp(PrintGCTimeStamps);
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if (PrintGCID) {
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gclog_or_tty->print("#%u: ", gc_id.id());
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}
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gclog_or_tty->print("[%s", title);
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gclog_or_tty->flush();
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}
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}
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GCTraceTime::~GCTraceTime() {
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Ticks stop_counter;
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if (_doit || _timer != NULL) {
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stop_counter.stamp();
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}
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if (_timer != NULL) {
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_timer->register_gc_phase_end(stop_counter);
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}
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if (_doit) {
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const Tickspan duration = stop_counter - _start_counter;
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double duration_in_seconds = TicksToTimeHelper::seconds(duration);
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if (_print_cr) {
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gclog_or_tty->print_cr(", %3.7f secs]", duration_in_seconds);
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} else {
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gclog_or_tty->print(", %3.7f secs]", duration_in_seconds);
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}
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gclog_or_tty->flush();
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}
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}
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