1 /* 2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "gc_implementation/shared/gcTimer.hpp" 27 #include "gc_implementation/shared/gcTrace.hpp" 28 #include "gc_implementation/shenandoah/shenandoahHeap.hpp" 29 #include "gc_implementation/shenandoah/shenandoahGCTraceTime.hpp" 30 #include "runtime/globals.hpp" 31 #include "runtime/os.hpp" 32 #include "runtime/safepoint.hpp" 33 #include "runtime/thread.inline.hpp" 34 #include "runtime/timer.hpp" 35 #include "utilities/ostream.hpp" 36 #include "utilities/ticks.hpp" 37 38 39 ShenandoahGCTraceTime::ShenandoahGCTraceTime(const char* title, bool doit, GCTimer* timer, GCId gc_id, bool print_heap) : 40 _title(title), _doit(doit), _timer(timer), _start_counter(), _heap(ShenandoahHeap::heap()), _print_heap(print_heap) { 41 if (_doit || _timer != NULL) { 42 _start_counter.stamp(); 43 } 44 45 if (_timer != NULL) { 46 _timer->register_gc_phase_start(title, _start_counter); 47 } 48 49 if (_doit) { 50 _bytes_before = _heap->used(); 51 52 gclog_or_tty->date_stamp(PrintGCDateStamps); 53 gclog_or_tty->stamp(PrintGCTimeStamps); 54 if (PrintGCID && !gc_id.is_undefined()) { 55 gclog_or_tty->print("#%u: ", gc_id.id()); 56 } 57 gclog_or_tty->print("[%s", title); 58 gclog_or_tty->flush(); 59 } 60 } 61 62 ShenandoahGCTraceTime::~ShenandoahGCTraceTime() { 63 Ticks stop_counter; 64 65 if (_doit || _timer != NULL) { 66 stop_counter.stamp(); 67 } 68 69 if (_timer != NULL) { 70 _timer->register_gc_phase_end(stop_counter); 71 } 72 73 if (_doit) { 74 const Tickspan duration = stop_counter - _start_counter; 75 double secs = duration.seconds(); 76 77 size_t bytes_after = _heap->used(); 78 size_t capacity = _heap->capacity(); 79 80 if (_print_heap) { 81 gclog_or_tty->print(" " SIZE_FORMAT "%s->" SIZE_FORMAT "%s(" SIZE_FORMAT "%s)", 82 byte_size_in_proper_unit(_bytes_before), 83 proper_unit_for_byte_size(_bytes_before), 84 byte_size_in_proper_unit(bytes_after), 85 proper_unit_for_byte_size(bytes_after), 86 byte_size_in_proper_unit(capacity), 87 proper_unit_for_byte_size(capacity)); 88 } 89 90 gclog_or_tty->print_cr(", %.3f ms]", secs * 1000); 91 gclog_or_tty->flush(); 92 } 93 }