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1 | /******************************************************************************* |
2 | * Copyright (c) 2014 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 | * Geneviève Bastien - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.internal.lttng2.kernel.ui.views.cpuusage; | |
14 | ||
15 | import java.util.ArrayList; | |
e9a0d1cb | 16 | import java.util.Collections; |
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17 | import java.util.HashMap; |
18 | import java.util.List; | |
19 | import java.util.Map; | |
20 | import java.util.Map.Entry; | |
21 | ||
e9a0d1cb | 22 | import org.eclipse.jdt.annotation.NonNull; |
dffc234f GB |
23 | import org.eclipse.jface.viewers.Viewer; |
24 | import org.eclipse.jface.viewers.ViewerComparator; | |
25 | import org.eclipse.linuxtools.internal.lttng2.kernel.core.Attributes; | |
26 | import org.eclipse.linuxtools.lttng2.kernel.core.analysis.LttngKernelAnalysisModule; | |
27 | import org.eclipse.linuxtools.lttng2.kernel.core.cpuusage.LttngKernelCpuUsageAnalysis; | |
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28 | import org.eclipse.linuxtools.statesystem.core.ITmfStateSystem; |
29 | import org.eclipse.linuxtools.statesystem.core.exceptions.AttributeNotFoundException; | |
30 | import org.eclipse.linuxtools.statesystem.core.exceptions.StateSystemDisposedException; | |
31 | import org.eclipse.linuxtools.statesystem.core.interval.ITmfStateInterval; | |
32 | import org.eclipse.linuxtools.statesystem.core.statevalue.ITmfStateValue; | |
dffc234f | 33 | import org.eclipse.linuxtools.tmf.core.statesystem.TmfStateSystemAnalysisModule; |
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34 | import org.eclipse.linuxtools.tmf.ui.viewers.tree.AbstractTmfTreeViewer; |
35 | import org.eclipse.linuxtools.tmf.ui.viewers.tree.ITmfTreeColumnDataProvider; | |
36 | import org.eclipse.linuxtools.tmf.ui.viewers.tree.ITmfTreeViewerEntry; | |
37 | import org.eclipse.linuxtools.tmf.ui.viewers.tree.TmfTreeColumnData; | |
38 | import org.eclipse.linuxtools.tmf.ui.viewers.tree.TmfTreeColumnData.ITmfColumnPercentageProvider; | |
39 | import org.eclipse.linuxtools.tmf.ui.viewers.tree.TmfTreeViewerEntry; | |
40 | import org.eclipse.osgi.util.NLS; | |
41 | import org.eclipse.swt.widgets.Composite; | |
42 | ||
43 | /** | |
44 | * Tree viewer to display CPU usage information in a specified time range. It | |
45 | * shows the process's TID, its name, the time spent on the CPU during that | |
46 | * range, in % and absolute value. | |
47 | * | |
48 | * @author Geneviève Bastien | |
49 | */ | |
50 | public class CpuUsageComposite extends AbstractTmfTreeViewer { | |
51 | ||
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52 | // Timeout between to wait for in the updateElements method |
53 | private static final long BUILD_UPDATE_TIMEOUT = 500; | |
54 | ||
dffc234f | 55 | private LttngKernelCpuUsageAnalysis fModule = null; |
e9a0d1cb | 56 | private String fSelectedThread = null; |
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57 | |
58 | private static final String[] COLUMN_NAMES = new String[] { | |
59 | Messages.CpuUsageComposite_ColumnTID, | |
60 | Messages.CpuUsageComposite_ColumnProcess, | |
61 | Messages.CpuUsageComposite_ColumnPercent, | |
62 | Messages.CpuUsageComposite_ColumnTime | |
63 | }; | |
64 | ||
65 | /* A map that saves the mapping of a thread ID to its executable name */ | |
66 | private final Map<String, String> fProcessNameMap = new HashMap<>(); | |
67 | ||
68 | /** Provides label for the CPU usage tree viewer cells */ | |
69 | protected static class CpuLabelProvider extends TreeLabelProvider { | |
70 | ||
71 | @Override | |
72 | public String getColumnText(Object element, int columnIndex) { | |
73 | CpuUsageEntry obj = (CpuUsageEntry) element; | |
74 | if (columnIndex == 0) { | |
75 | return obj.getTid(); | |
76 | } else if (columnIndex == 1) { | |
77 | return obj.getProcessName(); | |
78 | } else if (columnIndex == 2) { | |
79 | return String.format(Messages.CpuUsageComposite_TextPercent, obj.getPercent()); | |
80 | } else if (columnIndex == 3) { | |
81 | return NLS.bind(Messages.CpuUsageComposite_TextTime, obj.getTime()); | |
82 | } | |
83 | ||
84 | return element.toString(); | |
85 | } | |
86 | ||
87 | } | |
88 | ||
89 | /** | |
90 | * Constructor | |
91 | * | |
92 | * @param parent | |
93 | * The parent composite that holds this viewer | |
94 | */ | |
95 | public CpuUsageComposite(Composite parent) { | |
96 | super(parent, false); | |
97 | setLabelProvider(new CpuLabelProvider()); | |
98 | } | |
99 | ||
100 | @Override | |
101 | protected ITmfTreeColumnDataProvider getColumnDataProvider() { | |
102 | return new ITmfTreeColumnDataProvider() { | |
103 | ||
104 | @Override | |
105 | public List<TmfTreeColumnData> getColumnData() { | |
106 | /* All columns are sortable */ | |
107 | List<TmfTreeColumnData> columns = new ArrayList<>(); | |
108 | TmfTreeColumnData column = new TmfTreeColumnData(COLUMN_NAMES[0]); | |
109 | column.setComparator(new ViewerComparator() { | |
110 | @Override | |
111 | public int compare(Viewer viewer, Object e1, Object e2) { | |
112 | CpuUsageEntry n1 = (CpuUsageEntry) e1; | |
113 | CpuUsageEntry n2 = (CpuUsageEntry) e2; | |
114 | ||
115 | return n1.getTid().compareTo(n2.getTid()); | |
116 | ||
117 | } | |
118 | }); | |
119 | columns.add(column); | |
120 | column = new TmfTreeColumnData(COLUMN_NAMES[1]); | |
121 | column.setComparator(new ViewerComparator() { | |
122 | @Override | |
123 | public int compare(Viewer viewer, Object e1, Object e2) { | |
124 | CpuUsageEntry n1 = (CpuUsageEntry) e1; | |
125 | CpuUsageEntry n2 = (CpuUsageEntry) e2; | |
126 | ||
127 | return n1.getProcessName().compareTo(n2.getProcessName()); | |
128 | ||
129 | } | |
130 | }); | |
131 | columns.add(column); | |
132 | column = new TmfTreeColumnData(COLUMN_NAMES[2]); | |
133 | column.setComparator(new ViewerComparator() { | |
134 | @Override | |
135 | public int compare(Viewer viewer, Object e1, Object e2) { | |
136 | CpuUsageEntry n1 = (CpuUsageEntry) e1; | |
137 | CpuUsageEntry n2 = (CpuUsageEntry) e2; | |
138 | ||
139 | return n1.getPercent().compareTo(n2.getPercent()); | |
140 | ||
141 | } | |
142 | }); | |
143 | column.setPercentageProvider(new ITmfColumnPercentageProvider() { | |
144 | ||
145 | @Override | |
146 | public double getPercentage(Object data) { | |
147 | CpuUsageEntry parent = (CpuUsageEntry) data; | |
148 | return parent.getPercent() / 100; | |
149 | } | |
150 | }); | |
151 | columns.add(column); | |
152 | column = new TmfTreeColumnData(COLUMN_NAMES[3]); | |
153 | column.setComparator(new ViewerComparator() { | |
154 | @Override | |
155 | public int compare(Viewer viewer, Object e1, Object e2) { | |
156 | CpuUsageEntry n1 = (CpuUsageEntry) e1; | |
157 | CpuUsageEntry n2 = (CpuUsageEntry) e2; | |
158 | ||
159 | return n1.getTime().compareTo(n2.getTime()); | |
160 | ||
161 | } | |
162 | }); | |
163 | columns.add(column); | |
164 | ||
165 | return columns; | |
166 | } | |
167 | ||
168 | }; | |
169 | } | |
170 | ||
171 | // ------------------------------------------------------------------------ | |
172 | // Operations | |
173 | // ------------------------------------------------------------------------ | |
174 | ||
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175 | @Override |
176 | protected void contentChanged(ITmfTreeViewerEntry rootEntry) { | |
177 | String selectedThread = fSelectedThread; | |
178 | if (selectedThread != null) { | |
179 | /* Find the selected thread among the inputs */ | |
180 | for (ITmfTreeViewerEntry entry : rootEntry.getChildren()) { | |
181 | if (entry instanceof CpuUsageEntry) { | |
182 | if (selectedThread.equals(((CpuUsageEntry) entry).getTid())) { | |
183 | @SuppressWarnings("null") | |
184 | @NonNull List<ITmfTreeViewerEntry> list = Collections.singletonList(entry); | |
185 | super.setSelection(list); | |
186 | return; | |
187 | } | |
188 | } | |
189 | } | |
190 | } | |
191 | } | |
192 | ||
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193 | @Override |
194 | public void initializeDataSource() { | |
195 | fModule = getTrace().getAnalysisModuleOfClass(LttngKernelCpuUsageAnalysis.class, LttngKernelCpuUsageAnalysis.ID); | |
196 | if (fModule == null) { | |
197 | return; | |
198 | } | |
199 | fModule.schedule(); | |
200 | fModule.waitForInitialization(); | |
201 | fProcessNameMap.clear(); | |
202 | } | |
203 | ||
204 | @Override | |
205 | protected ITmfTreeViewerEntry updateElements(long start, long end, boolean isSelection) { | |
206 | if (isSelection || (start == end)) { | |
207 | return null; | |
208 | } | |
209 | if (getTrace() == null || fModule == null) { | |
210 | return null; | |
211 | } | |
d48661f2 | 212 | fModule.waitForInitialization(); |
dffc234f | 213 | ITmfStateSystem ss = fModule.getStateSystem(); |
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214 | if (ss == null) { |
215 | return null; | |
216 | } | |
217 | ||
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218 | boolean complete = false; |
219 | long currentEnd = start; | |
220 | ||
221 | while (!complete && currentEnd < end) { | |
222 | complete = ss.waitUntilBuilt(BUILD_UPDATE_TIMEOUT); | |
223 | currentEnd = ss.getCurrentEndTime(); | |
224 | } | |
225 | ||
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226 | /* Initialize the data */ |
227 | Map<String, Long> cpuUsageMap = fModule.getCpuUsageInRange(Math.max(start, getStartTime()), Math.min(end, getEndTime())); | |
228 | ||
229 | TmfTreeViewerEntry root = new TmfTreeViewerEntry(""); //$NON-NLS-1$ | |
230 | List<ITmfTreeViewerEntry> entryList = root.getChildren(); | |
231 | ||
232 | for (Entry<String, Long> entry : cpuUsageMap.entrySet()) { | |
233 | /* | |
234 | * Process only entries representing the total of all CPUs and that | |
235 | * have time on CPU | |
236 | */ | |
237 | if (entry.getValue() == 0) { | |
238 | continue; | |
239 | } | |
240 | if (!entry.getKey().startsWith(LttngKernelCpuUsageAnalysis.TOTAL)) { | |
241 | continue; | |
242 | } | |
243 | String[] strings = entry.getKey().split(LttngKernelCpuUsageAnalysis.SPLIT_STRING, 2); | |
244 | ||
245 | if ((strings.length > 1) && !(strings[1].equals(LttngKernelCpuUsageAnalysis.TID_ZERO))) { | |
246 | CpuUsageEntry obj = new CpuUsageEntry(strings[1], getProcessName(strings[1]), (double) entry.getValue() / (double) (end - start) * 100, entry.getValue()); | |
247 | entryList.add(obj); | |
248 | } | |
249 | } | |
250 | ||
251 | return root; | |
252 | } | |
253 | ||
254 | /* | |
255 | * Get the process name from its TID by using the LTTng kernel analysis | |
256 | * module | |
257 | */ | |
258 | private String getProcessName(String tid) { | |
259 | String execName = fProcessNameMap.get(tid); | |
260 | if (execName != null) { | |
261 | return execName; | |
262 | } | |
263 | TmfStateSystemAnalysisModule module = getTrace().getAnalysisModuleOfClass(TmfStateSystemAnalysisModule.class, LttngKernelAnalysisModule.ID); | |
264 | if (module == null) { | |
265 | return tid; | |
266 | } | |
267 | /* | |
268 | * Do not schedule the analysis here. It should have been executed when | |
269 | * the CPU usage analysis was executed. If it's not available, there | |
270 | * might be a good reason (disk space?) so don't force it. | |
271 | */ | |
272 | ITmfStateSystem kernelSs = module.getStateSystem(); | |
273 | if (kernelSs == null) { | |
274 | return tid; | |
275 | } | |
276 | ||
277 | try { | |
278 | int cpusNode = kernelSs.getQuarkAbsolute(Attributes.THREADS); | |
279 | ||
280 | /* Get the quarks for each cpu */ | |
281 | List<Integer> cpuNodes = kernelSs.getSubAttributes(cpusNode, false); | |
282 | ||
283 | for (Integer tidQuark : cpuNodes) { | |
284 | if (kernelSs.getAttributeName(tidQuark).equals(tid)) { | |
285 | int execNameQuark; | |
286 | List<ITmfStateInterval> execNameIntervals; | |
287 | try { | |
288 | execNameQuark = kernelSs.getQuarkRelative(tidQuark, Attributes.EXEC_NAME); | |
289 | execNameIntervals = kernelSs.queryHistoryRange(execNameQuark, getStartTime(), getEndTime()); | |
290 | } catch (AttributeNotFoundException e) { | |
291 | /* No information on this thread (yet?), skip it for now */ | |
292 | continue; | |
293 | } catch (StateSystemDisposedException e) { | |
294 | /* State system is closing down, no point continuing */ | |
295 | break; | |
296 | } | |
297 | ||
298 | for (ITmfStateInterval execNameInterval : execNameIntervals) { | |
299 | if (!execNameInterval.getStateValue().isNull() && | |
300 | execNameInterval.getStateValue().getType() == ITmfStateValue.Type.STRING) { | |
301 | execName = execNameInterval.getStateValue().unboxStr(); | |
302 | fProcessNameMap.put(tid, execName); | |
303 | return execName; | |
304 | } | |
305 | } | |
306 | } | |
307 | } | |
308 | ||
309 | } catch (AttributeNotFoundException e) { | |
310 | /* can't find the process name, just return the tid instead */ | |
311 | } | |
312 | return tid; | |
313 | } | |
314 | ||
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315 | /** |
316 | * Set the currently selected thread ID | |
317 | * | |
318 | * @param tid | |
319 | * The selected thread ID | |
320 | */ | |
321 | public void setSelectedThread(String tid) { | |
322 | fSelectedThread = tid; | |
323 | } | |
324 | ||
dffc234f | 325 | } |