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annotate graal/com.oracle.jvmci.debug/src/com/oracle/jvmci/debug/internal/TimerImpl.java @ 21565:f5b549811bac

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fixed eclipseformat issues
author Doug Simon <doug.simon@oracle.com>
date Fri, 29 May 2015 00:35:10 +0200
parents b1530a6cce8c
children
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1 /*
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2 * Copyright (c) 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 package com.oracle.jvmci.debug.internal;
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24
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25 import static com.oracle.jvmci.debug.DebugCloseable.*;
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26
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27 import java.lang.management.*;
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28 import java.util.concurrent.*;
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30 import com.oracle.jvmci.debug.*;
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31
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32 public final class TimerImpl extends AccumulatedDebugValue implements DebugTimer {
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33
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34 private static final ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
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35
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36 /**
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37 * Records the most recent active timer.
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38 */
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39 private static final ThreadLocal<CloseableCounterImpl> currentTimer = new ThreadLocal<>();
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40
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41 static class FlatTimer extends DebugValue implements DebugTimer {
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42 private TimerImpl accm;
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43
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44 public FlatTimer(String name, boolean conditional) {
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45 super(name + "_Flat", conditional);
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46 }
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47
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48 @Override
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49 public String toString(long value) {
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50 return valueToString(value);
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51 }
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52
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53 public TimeUnit getTimeUnit() {
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54 return accm.getTimeUnit();
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55 }
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56
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57 public DebugCloseable start() {
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58 return accm.start();
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59 }
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60 }
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61
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62 public TimerImpl(String name, boolean conditional) {
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63 super(name, conditional, new FlatTimer(name, conditional));
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64 ((FlatTimer) flat).accm = this;
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65 }
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66
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67 @Override
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68 public DebugCloseable start() {
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69 if (!isConditional() || Debug.isTimeEnabled()) {
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70 AbstractTimer result;
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71 if (threadMXBean.isCurrentThreadCpuTimeSupported()) {
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72 result = new CpuTimeTimer(this);
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73 } else {
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74 result = new SystemNanosTimer(this);
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75 }
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76 currentTimer.set(result);
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77 return result;
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78 } else {
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79 return VOID_CLOSEABLE;
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80 }
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81 }
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82
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83 public static String valueToString(long value) {
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84 return String.format("%d.%d ms", value / 1000000, (value / 100000) % 10);
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85 }
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86
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87 public DebugTimer getFlat() {
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88 return (FlatTimer) flat;
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89 }
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90
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91 @Override
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92 public String toString(long value) {
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93 return valueToString(value);
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94 }
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95
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96 public TimeUnit getTimeUnit() {
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97 return TimeUnit.NANOSECONDS;
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98 }
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99
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100 private abstract static class AbstractTimer extends CloseableCounterImpl implements DebugCloseable {
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101
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102 private AbstractTimer(AccumulatedDebugValue counter) {
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103 super(currentTimer.get(), counter);
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104 }
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105
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106 @Override
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107 public void close() {
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108 super.close();
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109 currentTimer.set(parent);
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110 }
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111 }
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112
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113 private final class SystemNanosTimer extends AbstractTimer {
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114
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115 public SystemNanosTimer(TimerImpl timer) {
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116 super(timer);
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117 }
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118
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119 @Override
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120 protected long getCounterValue() {
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121 return System.nanoTime();
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122 }
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123 }
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124
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125 private final class CpuTimeTimer extends AbstractTimer {
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126
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127 public CpuTimeTimer(TimerImpl timer) {
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128 super(timer);
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129 }
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130
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Gilles Duboscq <duboscq@ssw.jku.at>
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131 @Override
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Tom Rodriguez <tom.rodriguez@oracle.com>
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132 protected long getCounterValue() {
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133 return threadMXBean.getCurrentThreadCpuTime();
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Gilles Duboscq <duboscq@ssw.jku.at>
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134 }
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Gilles Duboscq <duboscq@ssw.jku.at>
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135 }
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5a84f5548fc4 More work on new debug infrastructure.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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136 }