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1 | /********************************************************************** |
2 | * Copyright (c) 2016 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 | ||
10 | package org.eclipse.tracecompass.internal.analysis.os.linux.ui.views.io.diskioactivity; | |
11 | ||
12 | import java.util.Collection; | |
13 | ||
14 | import org.eclipse.core.runtime.IProgressMonitor; | |
15 | import org.eclipse.jdt.annotation.Nullable; | |
16 | import org.eclipse.swt.SWT; | |
17 | import org.eclipse.swt.widgets.Composite; | |
18 | import org.eclipse.tracecompass.analysis.os.linux.core.inputoutput.Disk; | |
19 | import org.eclipse.tracecompass.analysis.os.linux.core.inputoutput.InputOutputAnalysisModule; | |
20 | import org.eclipse.tracecompass.analysis.os.linux.core.inputoutput.InputOutputInformationProvider; | |
21 | import org.eclipse.tracecompass.analysis.os.linux.core.inputoutput.IoOperationType; | |
22 | import org.eclipse.tracecompass.common.core.format.DataSpeedWithUnitFormat; | |
23 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystem; | |
24 | import org.eclipse.tracecompass.statesystem.core.exceptions.TimeRangeException; | |
25 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; | |
26 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils; | |
27 | import org.eclipse.tracecompass.tmf.ui.viewers.xycharts.linecharts.TmfCommonXLineChartViewer; | |
28 | import org.swtchart.Chart; | |
29 | ||
30 | /** | |
31 | * Disk IO Activity viewer, shows read and write bandwidth used over time. | |
32 | * | |
33 | * @author Houssem Daoud | |
34 | */ | |
35 | public class DisksIOActivityViewer extends TmfCommonXLineChartViewer { | |
36 | ||
37 | // Timeout between updates in the updateData thread | |
38 | private static final long BUILD_UPDATE_TIMEOUT = 500; | |
39 | private static final double RESOLUTION = 0.2; | |
40 | private static final int BYTES_PER_SECTOR = 512; | |
41 | private static final int SECOND_TO_NANOSECOND = (int) Math.pow(10, 9); | |
42 | ||
43 | private @Nullable InputOutputAnalysisModule fModule = null; | |
44 | ||
45 | /** | |
46 | * Constructor | |
47 | * | |
48 | * @param parent | |
49 | * parent view | |
50 | */ | |
51 | public DisksIOActivityViewer(@Nullable Composite parent) { | |
52 | super(parent, Messages.DiskIOActivityViewer_Title, Messages.DiskIOActivityViewer_XAxis, Messages.DiskIOActivityViewer_YAxis); | |
53 | setResolution(RESOLUTION); | |
54 | Chart chart = getSwtChart(); | |
c81aca6d | 55 | chart.getAxisSet().getYAxis(0).getTick().setFormat(DataSpeedWithUnitFormat.getInstance()); |
362d429e HD |
56 | chart.getLegend().setPosition(SWT.LEFT); |
57 | } | |
58 | ||
59 | @Override | |
60 | protected void initializeDataSource() { | |
61 | ITmfTrace trace = getTrace(); | |
62 | if (trace != null) { | |
63 | InputOutputAnalysisModule module = TmfTraceUtils.getAnalysisModuleOfClass(trace, InputOutputAnalysisModule.class, InputOutputAnalysisModule.ID); | |
64 | if (module == null) { | |
65 | return; | |
66 | } | |
67 | module.schedule(); | |
68 | fModule = module; | |
69 | } | |
70 | } | |
71 | ||
72 | @Override | |
73 | protected void updateData(long start, long end, int nb, @Nullable IProgressMonitor monitor) { | |
74 | InputOutputAnalysisModule module = fModule; | |
75 | if (getTrace() == null || module == null) { | |
76 | return; | |
77 | } | |
78 | if (!module.waitForInitialization()) { | |
79 | return; | |
80 | } | |
81 | ITmfStateSystem ss = module.getStateSystem(); | |
82 | if (ss == null) { | |
83 | return; | |
84 | } | |
85 | ||
86 | double[] xvalues = getXAxis(start, end, nb); | |
87 | setXAxis(xvalues); | |
88 | ||
89 | boolean complete = false; | |
90 | long currentEnd = start; | |
91 | ||
92 | while (!complete && currentEnd < end) { | |
93 | if (monitor != null && monitor.isCanceled()) { | |
94 | return; | |
95 | } | |
96 | complete = ss.waitUntilBuilt(BUILD_UPDATE_TIMEOUT); | |
97 | currentEnd = ss.getCurrentEndTime(); | |
98 | long traceStart = getStartTime(); | |
99 | long traceEnd = getEndTime(); | |
100 | long offset = this.getTimeOffset(); | |
101 | ||
102 | Collection<Disk> disks = InputOutputInformationProvider.getDisks(module); | |
103 | ||
104 | for (Disk disk : disks) { | |
105 | if (!disk.hasActivity()) { | |
106 | continue; | |
107 | } | |
108 | ||
109 | String diskName = disk.getDiskName(); | |
110 | ||
111 | /* Initialize quarks and series names */ | |
112 | double[] yValuesWritten = new double[xvalues.length]; | |
113 | double[] yValuesRead = new double[xvalues.length]; | |
114 | String seriesNameWritten = new String(diskName + Messages.DisksIOActivityViewer_Write); | |
115 | String seriesNameRead = new String(diskName + Messages.DisksIOActivityViewer_Read); | |
116 | ||
117 | double prevX = xvalues[0]; | |
118 | long prevTime = (long) prevX + offset; | |
119 | /* | |
120 | * make sure that time is in the trace range after double to | |
121 | * long conversion | |
122 | */ | |
123 | prevTime = Math.max(traceStart, prevTime); | |
124 | prevTime = Math.min(traceEnd, prevTime); | |
125 | long prevCountRead = disk.getSectorsAt(prevTime, IoOperationType.READ); | |
126 | long prevCountWrite = disk.getSectorsAt(prevTime, IoOperationType.WRITE); | |
127 | for (int i = 1; i < xvalues.length; i++) { | |
128 | if (monitor != null && monitor.isCanceled()) { | |
129 | return; | |
130 | } | |
131 | double x = xvalues[i]; | |
132 | long time = (long) x + offset; | |
133 | time = Math.max(traceStart, time); | |
134 | time = Math.min(traceEnd, time); | |
135 | try { | |
136 | long count = disk.getSectorsAt(time, IoOperationType.WRITE); | |
137 | yValuesWritten[i] = (count - prevCountWrite) * BYTES_PER_SECTOR / ((double) (time - prevTime) / SECOND_TO_NANOSECOND); | |
138 | prevCountWrite = count; | |
139 | count = disk.getSectorsAt(time, IoOperationType.READ); | |
140 | yValuesRead[i] = (count - prevCountRead) * BYTES_PER_SECTOR / ((double) (time - prevTime) / SECOND_TO_NANOSECOND); | |
141 | prevCountRead = count; | |
142 | } catch (TimeRangeException e) { | |
143 | yValuesWritten[i] = 0; | |
144 | yValuesRead[i] = 0; | |
145 | } | |
146 | prevTime = time; | |
147 | } | |
362d429e | 148 | setSeries(seriesNameRead, yValuesRead); |
5064e084 | 149 | setSeries(seriesNameWritten, yValuesWritten); |
362d429e HD |
150 | if (monitor != null && monitor.isCanceled()) { |
151 | return; | |
152 | } | |
153 | updateDisplay(); | |
154 | } | |
155 | } | |
156 | } | |
157 | } |