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annotate src/share/vm/utilities/events.cpp @ 8733:9def4075da6d

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8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate(). Reviewed-by: johnc, ysr Contributed-by: tamao <tao.mao@oracle.com>
author tamao
date Tue, 05 Mar 2013 15:36:56 -0800
parents f34d701e952e
children 0297e36d24a1 78bbf4d43a14
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1 /*
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "memory/allocation.inline.hpp"
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27 #include "runtime/mutexLocker.hpp"
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28 #include "runtime/osThread.hpp"
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29 #include "runtime/thread.inline.hpp"
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30 #include "runtime/threadCritical.hpp"
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31 #include "runtime/threadLocalStorage.hpp"
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32 #include "runtime/timer.hpp"
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33 #include "utilities/events.hpp"
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35
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36 EventLog* Events::_logs = NULL;
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37 StringEventLog* Events::_messages = NULL;
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38 StringEventLog* Events::_exceptions = NULL;
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39 StringEventLog* Events::_deopt_messages = NULL;
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40
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41 EventLog::EventLog() {
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42 // This normally done during bootstrap when we're only single
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43 // threaded but use a ThreadCritical to ensure inclusion in case
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44 // some are created slightly late.
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45 ThreadCritical tc;
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46 _next = Events::_logs;
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47 Events::_logs = this;
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48 }
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49
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50 // For each registered event logger, print out the current contents of
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51 // the buffer. This is normally called when the JVM is crashing.
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52 void Events::print_all(outputStream* out) {
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53 EventLog* log = _logs;
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54 while (log != NULL) {
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55 log->print_log_on(out);
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56 log = log->next();
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57 }
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58 }
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59
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60 void Events::print() {
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61 print_all(tty);
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62 }
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63
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64 void Events::init() {
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65 if (LogEvents) {
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66 _messages = new StringEventLog("Events");
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67 _exceptions = new StringEventLog("Internal exceptions");
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68 _deopt_messages = new StringEventLog("Deoptimization events");
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69 }
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70 }
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71
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72 void eventlog_init() {
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73 Events::init();
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74 }
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75
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76 ///////////////////////////////////////////////////////////////////////////
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77 // EventMark
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78
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79 EventMark::EventMark(const char* format, ...) {
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80 if (LogEvents) {
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81 va_list ap;
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82 va_start(ap, format);
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83 // Save a copy of begin message and log it.
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84 _buffer.printv(format, ap);
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85 Events::log(NULL, _buffer);
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86 va_end(ap);
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87 }
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88 }
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89
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90 EventMark::~EventMark() {
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91 if (LogEvents) {
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92 // Append " done" to the begin message and log it
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93 _buffer.append(" done");
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94 Events::log(NULL, _buffer);
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95 }
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96 }