org.eclipse.tracecompass.lttng2.ust.ui/src/org/eclipse/tracecompass/internal/lttng2/ust/ui/views/memusage/MemoryUsageViewer.java

   1 /**********************************************************************
   2  * Copyright (c) 2014 Ericsson, École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Bernd Hufmann - Initial API and implementation
  11  *   Geneviève Bastien - Create and use base class for XY plots
  12  **********************************************************************/
  13
  14 package org.eclipse.tracecompass.internal.lttng2.ust.ui.views.memusage;
  15
  16 import java.util.HashMap;
  17 import java.util.List;
  18 import java.util.Map;
  19
  20 import org.eclipse.core.runtime.IProgressMonitor;
  21 import org.eclipse.swt.widgets.Composite;
  22 import org.eclipse.tracecompass.internal.lttng2.ust.core.memoryusage.UstMemoryStrings;
  23 import org.eclipse.tracecompass.internal.tmf.core.Activator;
  24 import org.eclipse.tracecompass.lttng2.ust.core.analysis.memory.UstMemoryAnalysisModule;
  25 import org.eclipse.tracecompass.statesystem.core.ITmfStateSystem;
  26 import org.eclipse.tracecompass.statesystem.core.exceptions.AttributeNotFoundException;
  27 import org.eclipse.tracecompass.statesystem.core.exceptions.StateSystemDisposedException;
  28 import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException;
  29 import org.eclipse.tracecompass.statesystem.core.exceptions.TimeRangeException;
  30 import org.eclipse.tracecompass.statesystem.core.statevalue.ITmfStateValue;
  31 import org.eclipse.tracecompass.tmf.core.statesystem.TmfStateSystemAnalysisModule;
  32 import org.eclipse.tracecompass.tmf.ui.viewers.xycharts.linecharts.TmfCommonXLineChartViewer;
  33
  34 /**
  35  * Memory usage view
  36  *
  37  * @author Matthew Khouzam
  38  */
  39 @SuppressWarnings("restriction")
  40 public class MemoryUsageViewer extends TmfCommonXLineChartViewer {
  41
  42     private TmfStateSystemAnalysisModule fModule = null;
  43
  44     private final Map<Integer, double[]> fYValues = new HashMap<>();
  45     private final Map<Integer, Integer> fMemoryQuarks = new HashMap<>();
  46     private final Map<Integer, String> fSeriesName = new HashMap<>();
  47
  48     private static final int BYTES_TO_KB = 1024;
  49
  50     // Timeout between updates in the updateData thread
  51     private static final long BUILD_UPDATE_TIMEOUT = 500;
  52
  53     /**
  54      * Constructor
  55      *
  56      * @param parent
  57      *            parent view
  58      */
  59     public MemoryUsageViewer(Composite parent) {
  60         super(parent, Messages.MemoryUsageViewer_Title, Messages.MemoryUsageViewer_XAxis, Messages.MemoryUsageViewer_YAxis);
  61     }
  62
  63     @Override
  64     protected void initializeDataSource() {
  65         if (getTrace() != null) {
  66             fModule = getTrace().getAnalysisModuleOfClass(TmfStateSystemAnalysisModule.class, UstMemoryAnalysisModule.ID);
  67             if (fModule == null) {
  68                 return;
  69             }
  70             fModule.schedule();
  71         }
  72     }
  73
  74     @Override
  75     protected void updateData(long start, long end, int nb, IProgressMonitor monitor) {
  76         try {
  77             if (getTrace() == null || fModule == null) {
  78                 return;
  79             }
  80             fModule.waitForInitialization();
  81             ITmfStateSystem ss = fModule.getStateSystem();
  82             /* Don't wait for the module completion, when it's ready, we'll know */
  83             if (ss == null) {
  84                 return;
  85             }
  86
  87             double[] xvalues = getXAxis(start, end, nb);
  88             setXAxis(xvalues);
  89
  90             boolean complete = false;
  91             long currentEnd = start;
  92
  93             while (!complete && currentEnd < end) {
  94                 if (monitor.isCanceled()) {
  95                     return;
  96                 }
  97                 complete = ss.waitUntilBuilt(BUILD_UPDATE_TIMEOUT);
  98                 currentEnd = ss.getCurrentEndTime();
  99                 List<Integer> tidQuarks = ss.getSubAttributes(-1, false);
 100                 long traceStart = getStartTime();
 101                 long traceEnd = getEndTime();
 102                 long offset = this.getTimeOffset();
 103
 104                 /* Initialize quarks and series names */
 105                 for (int quark : tidQuarks) {
 106                     fYValues.put(quark, new double[xvalues.length]);
 107                     fMemoryQuarks.put(quark, ss.getQuarkRelative(quark, UstMemoryStrings.UST_MEMORY_MEMORY_ATTRIBUTE));
 108                     int procNameQuark = ss.getQuarkRelative(quark, UstMemoryStrings.UST_MEMORY_PROCNAME_ATTRIBUTE);
 109                     try {
 110                         ITmfStateValue procnameValue = ss.querySingleState(start, procNameQuark).getStateValue();
 111                         String procname = new String();
 112                         if (!procnameValue.isNull()) {
 113                             procname = procnameValue.unboxStr();
 114                         }
 115                         fSeriesName.put(quark, new String(procname + ' ' + '(' + ss.getAttributeName(quark) + ')').trim());
 116                     } catch (TimeRangeException e) {
 117                         fSeriesName.put(quark, '(' + ss.getAttributeName(quark) + ')');
 118                     }
 119                 }
 120
 121                 /*
 122                  * TODO: It should only show active threads in the time range. If a
 123                  * tid does not have any memory value (only 1 interval in the time
 124                  * range with value null or 0), then its series should not be
 125                  * displayed.
 126                  */
 127                 double yvalue = 0.0;
 128                 for (int i = 0; i < xvalues.length; i++) {
 129                     if (monitor.isCanceled()) {
 130                         return;
 131                     }
 132                     double x = xvalues[i];
 133                     long time = (long) x + offset;
 134                     // make sure that time is in the trace range after double to
 135                     // long conversion
 136                     time = time < traceStart ? traceStart : time;
 137                     time = time > traceEnd ? traceEnd : time;
 138
 139                     for (int quark : tidQuarks) {
 140                         try {
 141                             yvalue = ss.querySingleState(time, fMemoryQuarks.get(quark)).getStateValue().unboxLong() / BYTES_TO_KB;
 142                             fYValues.get(quark)[i] = yvalue;
 143                         } catch (TimeRangeException e) {
 144                             fYValues.get(quark)[i] = 0;
 145                         }
 146                     }
 147                 }
 148                 for (int quark : tidQuarks) {
 149                     setSeries(fSeriesName.get(quark), fYValues.get(quark));
 150                 }
 151                 updateDisplay();
 152             }
 153         } catch (AttributeNotFoundException | StateValueTypeException e) {
 154             Activator.logError("Error updating the data of the Memory usage view", e); //$NON-NLS-1$
 155         } catch (StateSystemDisposedException e) {
 156             /* State system is closing down, no point continuing */
 157         }
 158     }
 159
 160 }