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dffc234f | 1 | /******************************************************************************* |
ed902a2b | 2 | * Copyright (c) 2014, 2015 École Polytechnique de Montréal |
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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 | * Geneviève Bastien - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
e363eae1 | 13 | package org.eclipse.tracecompass.analysis.os.linux.ui.views.cpuusage; |
dffc234f | 14 | |
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15 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; |
16 | ||
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17 | import java.util.Arrays; |
18 | import java.util.HashMap; | |
19 | import java.util.LinkedHashMap; | |
20 | import java.util.Map; | |
21 | import java.util.Map.Entry; | |
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22 | import java.util.Set; |
23 | import java.util.TreeSet; | |
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24 | |
25 | import org.eclipse.core.runtime.IProgressMonitor; | |
3fda290f | 26 | import org.eclipse.jdt.annotation.NonNull; |
dffc234f | 27 | import org.eclipse.swt.widgets.Composite; |
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28 | import org.eclipse.tracecompass.analysis.os.linux.core.cpuusage.KernelCpuUsageAnalysis; |
29 | import org.eclipse.tracecompass.internal.analysis.os.linux.ui.Activator; | |
e894a508 AM |
30 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystem; |
31 | import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException; | |
1d83ed07 | 32 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; |
b8585c7c | 33 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils; |
2bdf0193 | 34 | import org.eclipse.tracecompass.tmf.ui.viewers.xycharts.linecharts.TmfCommonXLineChartViewer; |
dffc234f | 35 | |
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36 | import com.google.common.base.Joiner; |
37 | ||
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38 | /** |
39 | * CPU usage viewer with XY line chart. It displays the total CPU usage and that | |
40 | * of the threads selected in the CPU usage tree viewer. | |
41 | * | |
42 | * @author Geneviève Bastien | |
43 | */ | |
44 | public class CpuUsageXYViewer extends TmfCommonXLineChartViewer { | |
45 | ||
e363eae1 | 46 | private KernelCpuUsageAnalysis fModule = null; |
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47 | |
48 | /* Maps a thread ID to a list of y values */ | |
49 | private final Map<String, double[]> fYValues = new LinkedHashMap<>(); | |
50 | /* | |
51 | * To avoid up and downs CPU usage when process is in and out of CPU | |
52 | * frequently, use a smaller resolution to get better averages. | |
53 | */ | |
54 | private static final double RESOLUTION = 0.4; | |
55 | ||
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56 | // Timeout between updates in the updateData thread |
57 | private static final long BUILD_UPDATE_TIMEOUT = 500; | |
58 | ||
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59 | private long fSelectedThread = -1; |
60 | ||
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61 | private final @NonNull Set<@NonNull Integer> fCpus = new TreeSet<>(); |
62 | ||
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63 | /** |
64 | * Constructor | |
65 | * | |
66 | * @param parent | |
67 | * parent composite | |
dffc234f | 68 | */ |
e9a0d1cb | 69 | public CpuUsageXYViewer(Composite parent) { |
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70 | super(parent, Messages.CpuUsageXYViewer_Title, Messages.CpuUsageXYViewer_TimeXAxis, Messages.CpuUsageXYViewer_CpuYAxis); |
71 | setResolution(RESOLUTION); | |
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72 | } |
73 | ||
74 | @Override | |
75 | protected void initializeDataSource() { | |
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76 | ITmfTrace trace = getTrace(); |
77 | if (trace != null) { | |
78 | fModule = TmfTraceUtils.getAnalysisModuleOfClass(trace, KernelCpuUsageAnalysis.class, KernelCpuUsageAnalysis.ID); | |
dffc234f GB |
79 | if (fModule == null) { |
80 | return; | |
81 | } | |
82 | fModule.schedule(); | |
83 | } | |
84 | } | |
85 | ||
86 | private static double[] zeroFill(int nb) { | |
87 | double[] arr = new double[nb]; | |
88 | Arrays.fill(arr, 0.0); | |
89 | return arr; | |
90 | } | |
91 | ||
92 | @Override | |
93 | protected void updateData(long start, long end, int nb, IProgressMonitor monitor) { | |
94 | try { | |
95 | if (getTrace() == null || fModule == null) { | |
96 | return; | |
97 | } | |
d48661f2 | 98 | fModule.waitForInitialization(); |
dffc234f | 99 | ITmfStateSystem ss = fModule.getStateSystem(); |
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100 | if (ss == null) { |
101 | return; | |
102 | } | |
103 | double[] xvalues = getXAxis(start, end, nb); | |
104 | if (xvalues.length == 0) { | |
105 | return; | |
106 | } | |
107 | setXAxis(xvalues); | |
108 | ||
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109 | boolean complete = false; |
110 | long currentEnd = start; | |
dffc234f | 111 | |
d48661f2 | 112 | while (!complete && currentEnd < end) { |
dffc234f | 113 | |
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114 | if (monitor.isCanceled()) { |
115 | return; | |
116 | } | |
dffc234f | 117 | |
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118 | long traceStart = getStartTime(); |
119 | long traceEnd = getEndTime(); | |
120 | long offset = getTimeOffset(); | |
121 | long selectedThread = fSelectedThread; | |
122 | ||
123 | complete = ss.waitUntilBuilt(BUILD_UPDATE_TIMEOUT); | |
124 | currentEnd = ss.getCurrentEndTime(); | |
125 | ||
126 | /* Initialize the data */ | |
3fda290f | 127 | Map<String, Long> cpuUsageMap = fModule.getCpuUsageInRange(fCpus, Math.max(start, traceStart), Math.min(end, traceEnd)); |
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128 | Map<String, String> totalEntries = new HashMap<>(); |
129 | fYValues.clear(); | |
130 | fYValues.put(Messages.CpuUsageXYViewer_Total, zeroFill(xvalues.length)); | |
131 | String stringSelectedThread = Long.toString(selectedThread); | |
132 | if (selectedThread != -1) { | |
133 | fYValues.put(stringSelectedThread, zeroFill(xvalues.length)); | |
134 | } | |
135 | ||
136 | for (Entry<String, Long> entry : cpuUsageMap.entrySet()) { | |
137 | /* | |
138 | * Process only entries representing the total of all CPUs | |
139 | * and that have time on CPU | |
140 | */ | |
141 | if (entry.getValue() == 0) { | |
142 | continue; | |
143 | } | |
e363eae1 | 144 | if (!entry.getKey().startsWith(KernelCpuUsageAnalysis.TOTAL)) { |
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145 | continue; |
146 | } | |
e363eae1 | 147 | String[] strings = entry.getKey().split(KernelCpuUsageAnalysis.SPLIT_STRING, 2); |
d48661f2 | 148 | |
e363eae1 | 149 | if ((strings.length > 1) && !(strings[1].equals(KernelCpuUsageAnalysis.TID_ZERO))) { |
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150 | /* This is the total cpu usage for a thread */ |
151 | totalEntries.put(strings[1], entry.getKey()); | |
152 | } | |
153 | } | |
dffc234f | 154 | |
932fc182 | 155 | double prevX = xvalues[0] - 1; |
d48661f2 | 156 | long prevTime = (long) prevX + offset; |
dffc234f | 157 | /* |
d48661f2 GB |
158 | * make sure that time is in the trace range after double to |
159 | * long conversion | |
dffc234f | 160 | */ |
d48661f2 GB |
161 | prevTime = Math.max(traceStart, prevTime); |
162 | prevTime = Math.min(traceEnd, prevTime); | |
163 | /* Get CPU usage statistics for each x value */ | |
932fc182 | 164 | for (int i = 0; i < xvalues.length; i++) { |
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165 | if (monitor.isCanceled()) { |
166 | return; | |
167 | } | |
168 | long totalCpu = 0; | |
169 | double x = xvalues[i]; | |
170 | long time = (long) x + offset; | |
171 | time = Math.max(traceStart, time); | |
172 | time = Math.min(traceEnd, time); | |
932fc182 PT |
173 | if (time == prevTime) { |
174 | /* | |
175 | * we need at least 1 time unit to be able to get cpu | |
176 | * usage when zoomed in | |
177 | */ | |
178 | prevTime = time - 1; | |
179 | } | |
dffc234f | 180 | |
3fda290f | 181 | cpuUsageMap = fModule.getCpuUsageInRange(fCpus, prevTime, time); |
dffc234f | 182 | |
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183 | /* |
184 | * Calculate the sum of all total entries, and add a data | |
185 | * point to the selected one | |
186 | */ | |
187 | for (Entry<String, String> entry : totalEntries.entrySet()) { | |
188 | Long cpuEntry = cpuUsageMap.get(entry.getValue()); | |
189 | cpuEntry = cpuEntry != null ? cpuEntry : 0L; | |
190 | ||
191 | totalCpu += cpuEntry; | |
dffc234f | 192 | |
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193 | if (entry.getKey().equals(stringSelectedThread)) { |
194 | /* This is the total cpu usage for a thread */ | |
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195 | double[] key = checkNotNull(fYValues.get(entry.getKey())); |
196 | key[i] = (double) cpuEntry / (double) (time - prevTime) * 100; | |
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197 | } |
198 | ||
199 | } | |
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200 | double[] key = checkNotNull(fYValues.get(Messages.CpuUsageXYViewer_Total)); |
201 | key[i] = (double) totalCpu / (double) (time - prevTime) * 100; | |
d48661f2 | 202 | prevTime = time; |
dffc234f | 203 | } |
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204 | for (Entry<String, double[]> entry : fYValues.entrySet()) { |
205 | setSeries(entry.getKey(), entry.getValue()); | |
206 | } | |
207 | if (monitor.isCanceled()) { | |
208 | return; | |
209 | } | |
210 | updateDisplay(); | |
dffc234f | 211 | } |
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212 | } catch (StateValueTypeException e) { |
213 | Activator.getDefault().logError("Error updating the data of the CPU usage view", e); //$NON-NLS-1$ | |
214 | } | |
215 | ||
216 | } | |
217 | ||
218 | /** | |
219 | * Set the selected thread ID, which will be graphed in this viewer | |
220 | * | |
221 | * @param tid | |
222 | * The selected thread ID | |
223 | */ | |
224 | public void setSelectedThread(long tid) { | |
225 | cancelUpdate(); | |
226 | deleteSeries(Long.toString(fSelectedThread)); | |
227 | fSelectedThread = tid; | |
228 | updateContent(); | |
229 | } | |
230 | ||
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231 | /** |
232 | * Gets the analysis module | |
233 | * | |
234 | * @return the {@link KernelCpuUsageAnalysis} | |
235 | * | |
236 | * @since 2.0 | |
237 | */ | |
238 | public KernelCpuUsageAnalysis getModule() { | |
239 | return fModule; | |
240 | } | |
241 | ||
242 | /** | |
243 | * Add a core | |
244 | * | |
245 | * @param core | |
246 | * the core to add | |
247 | * @since 2.0 | |
248 | */ | |
249 | public void addCpu(int core) { | |
250 | fCpus.add(core); | |
251 | cancelUpdate(); | |
252 | updateContent(); | |
253 | getSwtChart().getTitle().setText(Messages.CpuUsageView_Title + ' ' + getCpuList()); | |
254 | } | |
255 | ||
256 | /** | |
257 | * Remove a core | |
258 | * | |
259 | * @param core | |
260 | * the core to remove | |
261 | * @since 2.0 | |
262 | */ | |
263 | public void removeCpu(int core) { | |
264 | fCpus.remove(core); | |
265 | cancelUpdate(); | |
266 | updateContent(); | |
267 | getSwtChart().getTitle().setText(Messages.CpuUsageView_Title + ' ' + getCpuList()); | |
268 | } | |
269 | ||
270 | private String getCpuList() { | |
271 | return Joiner.on(", ").join(fCpus); //$NON-NLS-1$ | |
272 | } | |
273 | ||
274 | /** | |
275 | * Clears the cores | |
276 | * | |
277 | * @since 2.0 | |
278 | */ | |
279 | public void clearCpu() { | |
280 | fCpus.clear(); | |
281 | cancelUpdate(); | |
282 | updateContent(); | |
283 | getSwtChart().getTitle().setText(Messages.CpuUsageView_Title); | |
284 | } | |
285 | ||
dffc234f | 286 | } |