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1 | /******************************************************************************* |
2 | * Copyright (c) 2015 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are made | |
5 | * 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 | *******************************************************************************/ | |
12 | package org.eclipse.tracecompass.internal.analysis.os.linux.core.latency.statistics; | |
13 | ||
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14 | import java.util.HashMap; |
15 | import java.util.Iterator; | |
16 | import java.util.Map; | |
17 | ||
18 | import org.eclipse.core.runtime.IProgressMonitor; | |
19 | import org.eclipse.jdt.annotation.Nullable; | |
ce8319b6 | 20 | import org.eclipse.tracecompass.analysis.os.linux.core.latency.SystemCall; |
53f46dc0 | 21 | import org.eclipse.tracecompass.analysis.os.linux.core.latency.SystemCallLatencyAnalysis; |
658401c8 | 22 | import org.eclipse.tracecompass.internal.analysis.timing.core.segmentstore.statistics.SegmentStoreStatistics; |
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23 | import org.eclipse.tracecompass.segmentstore.core.ISegment; |
24 | import org.eclipse.tracecompass.segmentstore.core.ISegmentStore; | |
25 | import org.eclipse.tracecompass.tmf.core.analysis.IAnalysisModule; | |
26 | import org.eclipse.tracecompass.tmf.core.analysis.TmfAbstractAnalysisModule; | |
27 | import org.eclipse.tracecompass.tmf.core.exceptions.TmfAnalysisException; | |
28 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; | |
29 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils; | |
30 | ||
31 | import com.google.common.collect.ImmutableList; | |
32 | ||
33 | /** | |
34 | * Analysis module to calculate statistics of a latency analysis | |
35 | * | |
36 | * @author Bernd Hufmann | |
37 | */ | |
aa65365a | 38 | public class SystemCallLatencyStatisticsAnalysisModule extends TmfAbstractAnalysisModule { |
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39 | |
40 | /** The analysis module ID */ | |
5ea53577 | 41 | public static final String ID = "org.eclipse.tracecompass.analysis.os.linux.core.latency.statistics.syscall"; //$NON-NLS-1$ |
ce8319b6 | 42 | |
aa65365a | 43 | private @Nullable SystemCallLatencyAnalysis fLatencyModule; |
ce8319b6 | 44 | |
53f46dc0 | 45 | private @Nullable SegmentStoreStatistics fTotalStats; |
ce8319b6 | 46 | |
53f46dc0 | 47 | private @Nullable Map<String, SegmentStoreStatistics> fPerSyscallStats; |
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48 | |
49 | @Override | |
50 | protected Iterable<IAnalysisModule> getDependentAnalyses() { | |
51 | ITmfTrace trace = getTrace(); | |
52 | if (trace != null) { | |
0e4f957e | 53 | SystemCallLatencyAnalysis module = TmfTraceUtils.getAnalysisModuleOfClass(trace, SystemCallLatencyAnalysis.class, SystemCallLatencyAnalysis.ID); |
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54 | if (module != null) { |
55 | fLatencyModule = module; | |
0e4f957e | 56 | return ImmutableList.of((IAnalysisModule) module); |
9451f462 | 57 | } |
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58 | } |
59 | return super.getDependentAnalyses(); | |
60 | } | |
61 | ||
62 | @Override | |
63 | protected boolean executeAnalysis(IProgressMonitor monitor) throws TmfAnalysisException { | |
aa65365a | 64 | SystemCallLatencyAnalysis latency = fLatencyModule; |
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65 | ITmfTrace trace = getTrace(); |
66 | if ((latency == null) || (trace == null)) { | |
67 | return false; | |
68 | } | |
69 | latency.waitForCompletion(); | |
70 | ||
73c74de7 | 71 | ISegmentStore<ISegment> segStore = latency.getSegmentStore(); |
ce8319b6 | 72 | |
73c74de7 | 73 | if (segStore != null) { |
ce8319b6 | 74 | |
73c74de7 | 75 | boolean result = calculateTotalManual(segStore, monitor); |
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76 | |
77 | if (!result) { | |
78 | return false; | |
79 | } | |
80 | ||
73c74de7 | 81 | result = calculateTotalPerSyscall(segStore, monitor); |
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82 | if (!result) { |
83 | return false; | |
84 | } | |
85 | } | |
86 | return true; | |
87 | } | |
88 | ||
89 | private boolean calculateTotalManual(ISegmentStore<ISegment> store, IProgressMonitor monitor) { | |
53f46dc0 | 90 | SegmentStoreStatistics total = new SegmentStoreStatistics(); |
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91 | Iterator<ISegment> iter = store.iterator(); |
92 | while (iter.hasNext()) { | |
93 | if (monitor.isCanceled()) { | |
94 | return false; | |
95 | } | |
96 | ISegment segment = iter.next(); | |
0e4f957e | 97 | total.update(segment); |
ce8319b6 | 98 | } |
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99 | fTotalStats = total; |
100 | return true; | |
101 | } | |
102 | ||
103 | private boolean calculateTotalPerSyscall(ISegmentStore<ISegment> store, IProgressMonitor monitor) { | |
53f46dc0 | 104 | Map<String, SegmentStoreStatistics> perSyscallStats = new HashMap<>(); |
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105 | |
106 | Iterator<ISegment> iter = store.iterator(); | |
107 | while (iter.hasNext()) { | |
108 | if (monitor.isCanceled()) { | |
109 | return false; | |
110 | } | |
111 | ISegment segment = iter.next(); | |
112 | if (segment instanceof SystemCall) { | |
113 | SystemCall syscall = (SystemCall) segment; | |
53f46dc0 | 114 | SegmentStoreStatistics values = perSyscallStats.get(syscall.getName()); |
ce8319b6 | 115 | if (values == null) { |
53f46dc0 | 116 | values = new SegmentStoreStatistics(); |
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117 | } |
118 | values.update(segment); | |
3507ca88 | 119 | perSyscallStats.put(syscall.getName(), values); |
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120 | } |
121 | } | |
3507ca88 | 122 | fPerSyscallStats = perSyscallStats; |
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123 | return true; |
124 | } | |
125 | ||
126 | @Override | |
127 | protected void canceling() { | |
128 | } | |
129 | ||
130 | /** | |
131 | * The total statistics | |
132 | * | |
133 | * @return the total statistics | |
134 | */ | |
53f46dc0 | 135 | public @Nullable SegmentStoreStatistics getTotalStats() { |
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136 | return fTotalStats; |
137 | } | |
138 | ||
139 | /** | |
140 | * The per syscall statistics | |
141 | * | |
142 | * @return the per syscall statistics | |
143 | */ | |
53f46dc0 | 144 | public @Nullable Map<String, SegmentStoreStatistics> getPerSyscallStats() { |
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145 | return fPerSyscallStats; |
146 | } | |
147 | ||
148 | } |