org.eclipse.linuxtools.lttng2.kernel.ui/src/org/eclipse/linuxtools/internal/lttng2/kernel/ui/views/resources/ResourcesView.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 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  *   Patrick Tasse - Initial API and implementation
  11  *   Geneviève Bastien - Move code to provide base classes for time graph views
  12  *******************************************************************************/
  13
  14 package org.eclipse.linuxtools.internal.lttng2.kernel.ui.views.resources;
  15
  16 import java.util.ArrayList;
  17 import java.util.Collections;
  18 import java.util.HashMap;
  19 import java.util.List;
  20 import java.util.Map;
  21
  22 import org.eclipse.core.runtime.IProgressMonitor;
  23 import org.eclipse.linuxtools.internal.lttng2.kernel.core.Attributes;
  24 import org.eclipse.linuxtools.internal.lttng2.kernel.ui.Messages;
  25 import org.eclipse.linuxtools.internal.lttng2.kernel.ui.views.resources.ResourcesEntry.Type;
  26 import org.eclipse.linuxtools.lttng2.kernel.ui.analysis.LttngKernelAnalysisModule;
  27 import org.eclipse.linuxtools.tmf.core.exceptions.AttributeNotFoundException;
  28 import org.eclipse.linuxtools.tmf.core.exceptions.StateSystemDisposedException;
  29 import org.eclipse.linuxtools.tmf.core.exceptions.StateValueTypeException;
  30 import org.eclipse.linuxtools.tmf.core.exceptions.TimeRangeException;
  31 import org.eclipse.linuxtools.tmf.core.interval.ITmfStateInterval;
  32 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateSystem;
  33 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  34 import org.eclipse.linuxtools.tmf.ui.views.timegraph.AbstractTimeGraphView;
  35 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeEvent;
  36 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.NullTimeEvent;
  37 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.TimeEvent;
  38 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.TimeGraphEntry;
  39
  40 /**
  41  * Main implementation for the LTTng 2.0 kernel Resource view
  42  *
  43  * @author Patrick Tasse
  44  */
  45 public class ResourcesView extends AbstractTimeGraphView {
  46
  47     /** View ID. */
  48     public static final String ID = "org.eclipse.linuxtools.lttng2.kernel.ui.views.resources"; //$NON-NLS-1$
  49
  50     private static final String[] FILTER_COLUMN_NAMES = new String[] {
  51             Messages.ResourcesView_stateTypeName
  52     };
  53
  54     // Timeout between updates in the build thread in ms
  55     private static final long BUILD_UPDATE_TIMEOUT = 500;
  56
  57     // ------------------------------------------------------------------------
  58     // Constructors
  59     // ------------------------------------------------------------------------
  60
  61     /**
  62      * Default constructor
  63      */
  64     public ResourcesView() {
  65         super(ID, new ResourcesPresentationProvider());
  66         setFilterColumns(FILTER_COLUMN_NAMES);
  67     }
  68
  69     // ------------------------------------------------------------------------
  70     // Internal
  71     // ------------------------------------------------------------------------
  72
  73     @Override
  74     protected String getNextText() {
  75         return Messages.ResourcesView_nextResourceActionNameText;
  76     }
  77
  78     @Override
  79     protected String getNextTooltip() {
  80         return Messages.ResourcesView_nextResourceActionToolTipText;
  81     }
  82
  83     @Override
  84     protected String getPrevText() {
  85         return Messages.ResourcesView_previousResourceActionNameText;
  86     }
  87
  88     @Override
  89     protected String getPrevTooltip() {
  90         return Messages.ResourcesView_previousResourceActionToolTipText;
  91     }
  92
  93     @Override
  94     protected void buildEventList(ITmfTrace trace, ITmfTrace parentTrace, IProgressMonitor monitor) {
  95         LttngKernelAnalysisModule module = trace.getAnalysisModules(LttngKernelAnalysisModule.class).get(LttngKernelAnalysisModule.ID);
  96         if (module == null) {
  97             return;
  98         }
  99         module.schedule();
 100         module.waitForInitialization();
 101         ITmfStateSystem ssq = module.getStateSystem();
 102         if (ssq == null) {
 103             return;
 104         }
 105
 106         Map<Integer, ResourcesEntry> entryMap = new HashMap<>();
 107         TimeGraphEntry traceEntry = null;
 108
 109         long startTime = ssq.getStartTime();
 110         long start = startTime;
 111         setStartTime(Math.min(getStartTime(), startTime));
 112         boolean complete = false;
 113         while (!complete) {
 114             if (monitor.isCanceled()) {
 115                 return;
 116             }
 117             complete = ssq.waitUntilBuilt(BUILD_UPDATE_TIMEOUT);
 118             if (ssq.isCancelled()) {
 119                 return;
 120             }
 121             long end = ssq.getCurrentEndTime();
 122             if (start == end && !complete) { // when complete execute one last time regardless of end time
 123                 continue;
 124             }
 125             long endTime = end + 1;
 126             setEndTime(Math.max(getEndTime(), endTime));
 127
 128             if (traceEntry == null) {
 129                 traceEntry = new ResourcesEntry(trace, trace.getName(), startTime, endTime, 0);
 130                 List<TimeGraphEntry> entryList = Collections.singletonList(traceEntry);
 131                 addToEntryList(parentTrace, entryList);
 132             } else {
 133                 traceEntry.updateEndTime(endTime);
 134             }
 135
 136             List<Integer> cpuQuarks = ssq.getQuarks(Attributes.CPUS, "*"); //$NON-NLS-1$
 137             for (Integer cpuQuark : cpuQuarks) {
 138                 int cpu = Integer.parseInt(ssq.getAttributeName(cpuQuark));
 139                 ResourcesEntry entry = entryMap.get(cpuQuark);
 140                 if (entry == null) {
 141                     entry = new ResourcesEntry(cpuQuark, trace, startTime, endTime, Type.CPU, cpu);
 142                     entryMap.put(cpuQuark, entry);
 143                     traceEntry.addChild(entry);
 144                 } else {
 145                     entry.updateEndTime(endTime);
 146                 }
 147             }
 148             List<Integer> irqQuarks = ssq.getQuarks(Attributes.RESOURCES, Attributes.IRQS, "*"); //$NON-NLS-1$
 149             for (Integer irqQuark : irqQuarks) {
 150                 int irq = Integer.parseInt(ssq.getAttributeName(irqQuark));
 151                 ResourcesEntry entry = entryMap.get(irqQuark);
 152                 if (entry == null) {
 153                     entry = new ResourcesEntry(irqQuark, trace, startTime, endTime, Type.IRQ, irq);
 154                     entryMap.put(irqQuark, entry);
 155                     traceEntry.addChild(entry);
 156                 } else {
 157                     entry.updateEndTime(endTime);
 158                 }
 159             }
 160             List<Integer> softIrqQuarks = ssq.getQuarks(Attributes.RESOURCES, Attributes.SOFT_IRQS, "*"); //$NON-NLS-1$
 161             for (Integer softIrqQuark : softIrqQuarks) {
 162                 int softIrq = Integer.parseInt(ssq.getAttributeName(softIrqQuark));
 163                 ResourcesEntry entry = entryMap.get(softIrqQuark);
 164                 if (entry == null) {
 165                     entry = new ResourcesEntry(softIrqQuark, trace, startTime, endTime, Type.SOFT_IRQ, softIrq);
 166                     entryMap.put(softIrqQuark, entry);
 167                     traceEntry.addChild(entry);
 168                 } else {
 169                     entry.updateEndTime(endTime);
 170                 }
 171             }
 172
 173             if (parentTrace.equals(getTrace())) {
 174                 refresh();
 175             }
 176             long resolution = Math.max(1, (endTime - ssq.getStartTime()) / getDisplayWidth());
 177             for (TimeGraphEntry entry : traceEntry.getChildren()) {
 178                 if (monitor.isCanceled()) {
 179                     return;
 180                 }
 181                 List<ITimeEvent> eventList = getEventList(entry, start, endTime, resolution, monitor);
 182                 if (eventList != null) {
 183                     for (ITimeEvent event : eventList) {
 184                         entry.addEvent(event);
 185                     }
 186                 }
 187                 redraw();
 188             }
 189
 190             start = end;
 191         }
 192     }
 193
 194     @Override
 195     protected List<ITimeEvent> getEventList(TimeGraphEntry entry,
 196             long startTime, long endTime, long resolution,
 197             IProgressMonitor monitor) {
 198         ResourcesEntry resourcesEntry = (ResourcesEntry) entry;
 199         LttngKernelAnalysisModule module = resourcesEntry.getTrace().getAnalysisModules(LttngKernelAnalysisModule.class).get(LttngKernelAnalysisModule.ID);
 200         if (module == null) {
 201             return null;
 202         }
 203         ITmfStateSystem ssq = module.getStateSystem();
 204         if (ssq == null) {
 205             return null;
 206         }
 207         final long realStart = Math.max(startTime, ssq.getStartTime());
 208         final long realEnd = Math.min(endTime, ssq.getCurrentEndTime() + 1);
 209         if (realEnd <= realStart) {
 210             return null;
 211         }
 212         List<ITimeEvent> eventList = null;
 213         int quark = resourcesEntry.getQuark();
 214
 215         try {
 216             if (resourcesEntry.getType().equals(Type.CPU)) {
 217                 int statusQuark = ssq.getQuarkRelative(quark, Attributes.STATUS);
 218                 List<ITmfStateInterval> statusIntervals = ssq.queryHistoryRange(statusQuark, realStart, realEnd - 1, resolution, monitor);
 219                 eventList = new ArrayList<>(statusIntervals.size());
 220                 long lastEndTime = -1;
 221                 for (ITmfStateInterval statusInterval : statusIntervals) {
 222                     if (monitor.isCanceled()) {
 223                         return null;
 224                     }
 225                     int status = statusInterval.getStateValue().unboxInt();
 226                     long time = statusInterval.getStartTime();
 227                     long duration = statusInterval.getEndTime() - time + 1;
 228                     if (!statusInterval.getStateValue().isNull()) {
 229                         if (lastEndTime != time && lastEndTime != -1) {
 230                             eventList.add(new TimeEvent(entry, lastEndTime, time - lastEndTime));
 231                         }
 232                         eventList.add(new TimeEvent(entry, time, duration, status));
 233                     } else if (lastEndTime == -1 || time + duration >= endTime) {
 234                         // add null event if it intersects the start or end time
 235                         eventList.add(new NullTimeEvent(entry, time, duration));
 236                     }
 237                     lastEndTime = time + duration;
 238                 }
 239             } else if (resourcesEntry.getType().equals(Type.IRQ)) {
 240                 List<ITmfStateInterval> irqIntervals = ssq.queryHistoryRange(quark, realStart, realEnd - 1, resolution, monitor);
 241                 eventList = new ArrayList<>(irqIntervals.size());
 242                 long lastEndTime = -1;
 243                 boolean lastIsNull = true;
 244                 for (ITmfStateInterval irqInterval : irqIntervals) {
 245                     if (monitor.isCanceled()) {
 246                         return null;
 247                     }
 248                     long time = irqInterval.getStartTime();
 249                     long duration = irqInterval.getEndTime() - time + 1;
 250                     if (!irqInterval.getStateValue().isNull()) {
 251                         int cpu = irqInterval.getStateValue().unboxInt();
 252                         eventList.add(new TimeEvent(entry, time, duration, cpu));
 253                         lastIsNull = false;
 254                     } else {
 255                         if (lastEndTime == -1) {
 256                             // add null event if it intersects the start time
 257                             eventList.add(new NullTimeEvent(entry, time, duration));
 258                         } else {
 259                             if (lastEndTime != time && lastIsNull) {
 260                                 /* This is a special case where we want to show IRQ_ACTIVE state but we don't know the CPU (it is between two null samples) */
 261                                 eventList.add(new TimeEvent(entry, lastEndTime, time - lastEndTime, -1));
 262                             }
 263                             if (time + duration >= endTime) {
 264                                 // add null event if it intersects the end time
 265                                 eventList.add(new NullTimeEvent(entry, time, duration));
 266                             }
 267                         }
 268                         lastIsNull = true;
 269                     }
 270                     lastEndTime = time + duration;
 271                 }
 272             } else if (resourcesEntry.getType().equals(Type.SOFT_IRQ)) {
 273                 List<ITmfStateInterval> softIrqIntervals = ssq.queryHistoryRange(quark, realStart, realEnd - 1, resolution, monitor);
 274                 eventList = new ArrayList<>(softIrqIntervals.size());
 275                 long lastEndTime = -1;
 276                 boolean lastIsNull = true;
 277                 for (ITmfStateInterval softIrqInterval : softIrqIntervals) {
 278                     if (monitor.isCanceled()) {
 279                         return null;
 280                     }
 281                     long time = softIrqInterval.getStartTime();
 282                     long duration = softIrqInterval.getEndTime() - time + 1;
 283                     if (!softIrqInterval.getStateValue().isNull()) {
 284                         int cpu = softIrqInterval.getStateValue().unboxInt();
 285                         eventList.add(new TimeEvent(entry, time, duration, cpu));
 286                     } else {
 287                         if (lastEndTime == -1) {
 288                             // add null event if it intersects the start time
 289                             eventList.add(new NullTimeEvent(entry, time, duration));
 290                         } else {
 291                             if (lastEndTime != time && lastIsNull) {
 292                                 /* This is a special case where we want to show IRQ_ACTIVE state but we don't know the CPU (it is between two null samples) */
 293                                 eventList.add(new TimeEvent(entry, lastEndTime, time - lastEndTime, -1));
 294                             }
 295                             if (time + duration >= endTime) {
 296                                 // add null event if it intersects the end time
 297                                 eventList.add(new NullTimeEvent(entry, time, duration));
 298                             }
 299                         }
 300                         lastIsNull = true;
 301                     }
 302                     lastEndTime = time + duration;
 303                 }
 304             }
 305
 306         } catch (AttributeNotFoundException | TimeRangeException | StateValueTypeException e) {
 307             e.printStackTrace();
 308         } catch (StateSystemDisposedException e) {
 309             /* Ignored */
 310         }
 311         return eventList;
 312     }
 313
 314 }