001/*
002 *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003 *
004 *  This file is licensed to You under the Eclipse Public License (EPL);
005 *  You may not use this file except in compliance with the License. You
006 *  may obtain a copy of the License at
007 *
008 *      http://www.opensource.org/licenses/eclipse-1.0.php
009 *
010 *  See the COPYRIGHT.txt file distributed with this work for information
011 *  regarding copyright ownership.
012 */
013package org.jikesrvm.adaptive.measurements.instrumentation;
014
015import org.jikesrvm.VM;
016import org.jikesrvm.adaptive.measurements.Reportable;
017import org.jikesrvm.compilers.opt.InstrumentedEventCounterManager;
018
019/**
020 * An extension of StringEventCounterData so that the printing can
021 * be specialized for yieldpoints.  Otherwise, the functionality is
022 * identical.
023 */
024public final class YieldpointCounterData extends StringEventCounterData implements Reportable {
025
026  static final boolean DEBUG = false;
027
028  /**
029   *  Constructor
030   *
031   * @param manager the manager that will provide the counter space
032   **/
033  YieldpointCounterData(InstrumentedEventCounterManager manager) {
034    super(manager, "Yieldpoint Counter");
035
036    automaticallyGrowCounters(true);
037  }
038
039  /**
040   *  Called at end when data should dump its contents.
041   */
042  @Override
043  public void report() {
044    // Turn off future instrumentation so that the data structures do
045    // not change while we are iterating over them
046    Instrumentation.disableInstrumentation();
047
048    VM.sysWrite("Printing " + dataName + ":\n");
049    VM.sysWrite("--------------------------------------------------\n");
050    double total = 0;
051    double methodEntryTotal = 0;
052    double backedgeTotal = 0;
053    for (String stringName : stringToCounterMap.keySet()) {
054      Integer counterNum = stringToCounterMap.get(stringName);
055      double count = getCounter(counterNum);
056
057      VM.sysWrite(count + " " + stringName + "\n");
058      total += count;
059
060      // If it's a method entry event
061      if (stringName.indexOf("METHOD ENTRY") != -1) {
062        methodEntryTotal += count;
063      }
064
065      if (stringName.indexOf("BACKEDGE") != -1) {
066        backedgeTotal += count;
067      }
068
069    }
070    VM.sysWrite("Total backedges: " + backedgeTotal + "\n");
071    VM.sysWrite("Method Entry Total: " + methodEntryTotal + "\n");
072    VM.sysWrite("Total Yieldpoints: " + total + "\n");
073  }
074
075}
076
077