1 /* 2 * Copyright (c) 2012, 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 package org.graalvm.compiler.debug.internal; 24 25 import static org.graalvm.compiler.debug.DebugCloseable.VOID_CLOSEABLE; 26 27 import java.util.concurrent.TimeUnit; 28 29 import org.graalvm.compiler.debug.Debug; 30 import org.graalvm.compiler.debug.DebugCloseable; 31 import org.graalvm.compiler.debug.DebugTimer; 32 import org.graalvm.compiler.debug.TimeSource; 33 import org.graalvm.compiler.debug.internal.method.MethodMetricsImpl; 34 35 public final class TimerImpl extends AccumulatedDebugValue implements DebugTimer { 36 private final boolean intercepting; 37 38 /** 39 * Records the most recent active timer. 40 */ 41 private static final ThreadLocal<CloseableCounterImpl> currentTimer = new ThreadLocal<>(); 42 43 static class FlatTimer extends DebugValue implements DebugTimer { 44 private TimerImpl accm; 45 46 FlatTimer(String name, boolean conditional) { 47 super(name + "_Flat", conditional); 48 } 49 50 @Override 51 public String toString(long value) { 52 return valueToString(value); 53 } 54 55 @Override 56 public TimeUnit getTimeUnit() { 57 return accm.getTimeUnit(); 58 } 59 60 @Override 61 public DebugCloseable start() { 62 return accm.start(); 63 } 64 65 @Override 66 public String rawUnit() { 67 return "us"; 68 } 69 70 @Override 71 public String toRawString(long value) { 72 return valueToRawString(value); 73 } 74 } 75 76 public TimerImpl(String name, boolean conditional, boolean intercepting) { 77 super(name, conditional, new FlatTimer(name, conditional)); 78 ((FlatTimer) flat).accm = this; 79 this.intercepting = intercepting; 80 } 81 82 @Override 83 public DebugCloseable start() { 84 if (!isConditional() || Debug.isTimeEnabled()) { 85 AbstractTimer result = intercepting ? new InterceptingTimer(this) : new Timer(this); 86 currentTimer.set(result); 87 return result; 88 } else { 89 return VOID_CLOSEABLE; 90 } 91 } 92 93 public static String valueToString(long value) { 94 return String.format("%d.%d ms", value / 1000000, (value / 100000) % 10); 95 } 96 97 @Override 98 public DebugTimer getFlat() { 99 return (FlatTimer) flat; 100 } 101 102 @Override 103 public String toString(long value) { 104 return valueToString(value); 105 } 106 107 @Override 108 public TimeUnit getTimeUnit() { 109 return TimeUnit.NANOSECONDS; 110 } 111 112 private abstract class AbstractTimer extends CloseableCounterImpl implements DebugCloseable { 113 114 private AbstractTimer(AccumulatedDebugValue counter) { 115 super(currentTimer.get(), counter); 116 } 117 118 @Override 119 public void close() { 120 super.close(); 121 currentTimer.set(parent); 122 } 123 } 124 125 private final class Timer extends AbstractTimer { 126 127 private Timer(TimerImpl timer) { 128 super(timer); 129 } 130 131 @Override 132 protected long getCounterValue() { 133 return TimeSource.getTimeNS(); 134 } 135 136 } 137 138 private final class InterceptingTimer extends AbstractTimer { 139 140 private InterceptingTimer(TimerImpl timer) { 141 super(timer); 142 } 143 144 @Override 145 protected long getCounterValue() { 146 return TimeSource.getTimeNS(); 147 } 148 149 @Override 150 protected void interceptDifferenceAccm(long difference) { 151 if (Debug.isMethodMeterEnabled()) { 152 MethodMetricsImpl.addToCurrentScopeMethodMetrics(counter.getName(), difference); 153 } 154 } 155 156 @Override 157 protected void interceptDifferenceFlat(long difference) { 158 if (Debug.isMethodMeterEnabled()) { 159 MethodMetricsImpl.addToCurrentScopeMethodMetrics(counter.flat.getName(), difference); 160 } 161 } 162 } 163 164 @Override 165 public String rawUnit() { 166 return "us"; 167 } 168 169 @Override 170 public String toRawString(long value) { 171 return valueToRawString(value); 172 } 173 174 public static String valueToRawString(long value) { 175 return Long.toString(value / 1000); 176 } 177 178 }