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1 | /******************************************************************************* |
2 | * Copyright (c) 2012 Ericsson | |
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 | * Matthew Khouzam - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.ctf.core.tests.headless; | |
14 | ||
15 | import java.text.DateFormat; | |
16 | import java.text.SimpleDateFormat; | |
17 | import java.util.Date; | |
18 | import java.util.Vector; | |
19 | ||
20 | import org.eclipse.linuxtools.ctf.core.event.EventDefinition; | |
21 | import org.eclipse.linuxtools.ctf.core.trace.CTFReaderException; | |
22 | import org.eclipse.linuxtools.ctf.core.trace.CTFTrace; | |
23 | import org.eclipse.linuxtools.ctf.core.trace.CTFTraceReader; | |
24 | ||
25 | public class ReadTrace { | |
26 | ||
27 | /** | |
28 | * @param args | |
29 | */ | |
30 | @SuppressWarnings("nls") | |
31 | public static void main(String[] args) { | |
32 | final String TRACE_PATH = "Tests/traces/trace20m1"; | |
33 | ||
34 | // Change this to enable text output | |
35 | final boolean USE_TEXT = false; | |
36 | ||
37 | final int LOOP_COUNT = 1; | |
38 | ||
39 | // Work variables | |
40 | Long nbEvent = 0L; | |
41 | Vector<Double> benchs = new Vector<Double>(); | |
42 | CTFTrace trace = null; | |
43 | long start, stop; | |
44 | for (int loops = 0; loops < LOOP_COUNT; loops++) { | |
45 | try { | |
46 | nbEvent = 0L; | |
47 | trace = new CTFTrace(TRACE_PATH); | |
48 | } catch (CTFReaderException e) { | |
49 | // do nothing | |
50 | } | |
51 | long prev = -1; | |
52 | start = System.nanoTime(); | |
53 | if (USE_TEXT) { | |
54 | System.out.println("Event, " + " Time, " + " type, " + " CPU "); | |
55 | } | |
56 | if (trace != null) { | |
57 | CTFTraceReader traceReader = new CTFTraceReader(trace); | |
58 | ||
59 | start = System.nanoTime(); | |
60 | ||
61 | while (traceReader.hasMoreEvents()) { | |
62 | EventDefinition ed = traceReader.getCurrentEventDef(); | |
63 | nbEvent++; | |
64 | if (prev == traceReader.getIndex()) { | |
65 | System.out.println("Error on events " + prev); | |
66 | } | |
67 | prev = traceReader.getIndex(); | |
68 | if (USE_TEXT) { | |
69 | String output = formatDate(ed.timestamp | |
70 | + trace.getOffset()); | |
71 | System.out.println(traceReader.getIndex() + ", " | |
72 | + output + ", " + ed.getDeclaration().getName() | |
73 | + ", " + ed.getCPU()); | |
74 | } | |
75 | ||
76 | traceReader.advance(); | |
77 | } | |
78 | } | |
79 | stop = System.nanoTime(); | |
80 | System.out.print('.'); | |
81 | double time = (stop - start) / (double) nbEvent; | |
82 | benchs.add(time); | |
83 | } | |
84 | System.out.println(""); | |
85 | double avg = 0; | |
86 | for (Double val : benchs) { | |
87 | avg += val; | |
88 | } | |
89 | avg /= benchs.size(); | |
90 | System.out.println("Time to read " + nbEvent + " events = " + avg | |
91 | + " events/ns"); | |
92 | for (Double val : benchs) { | |
93 | System.out.print(val); | |
94 | System.out.print(", "); | |
95 | } | |
96 | try { | |
97 | testSeekIndex(trace); | |
98 | } catch (CTFReaderException e) { | |
99 | // TODO Auto-generated catch block | |
100 | e.printStackTrace(); | |
101 | } | |
102 | ||
103 | try { | |
104 | testSeekIndex(trace); | |
105 | } catch (CTFReaderException e) { | |
106 | // TODO Auto-generated catch block | |
107 | e.printStackTrace(); | |
108 | } | |
109 | ||
110 | } | |
111 | ||
112 | /** | |
113 | * @return | |
114 | */ | |
115 | private static long getTimestamp(CTFTraceReader fixture) { | |
116 | if (fixture.getCurrentEventDef() != null) { | |
117 | return fixture.getCurrentEventDef().timestamp; | |
118 | } | |
119 | return Long.MIN_VALUE; | |
120 | } | |
121 | ||
122 | public static void testSeekIndex(CTFTrace trace) throws CTFReaderException { | |
123 | CTFTraceReader fixture = new CTFTraceReader(trace); | |
124 | long rank = 300000L; | |
125 | long timeRank = 4281275394331L; | |
126 | long nearEnd = 4287422858132L; | |
127 | long seekTime_0; | |
128 | long seekIndex_0 = 0; | |
129 | long seekNext_300000 = 0; | |
130 | long seekIndex_300000 = 0; | |
131 | long seekTime_300000 = 0; | |
132 | String cr = "\n"; //$NON-NLS-1$ | |
133 | fixture.seek(0); | |
134 | for (int i = 0; i < 100; i++) { | |
135 | fixture.advance(); | |
136 | } | |
137 | ||
138 | fixture.seek(nearEnd); | |
139 | /* | |
140 | * we need to read the trace before seeking | |
141 | */ | |
142 | fixture.seek(0); | |
143 | seekTime_0 = getTimestamp(fixture); | |
144 | for (int i = 0; i < rank; i++) { | |
145 | fixture.advance(); | |
146 | } | |
147 | seekNext_300000 = getTimestamp(fixture); | |
148 | fixture.seek(timeRank); | |
149 | seekTime_300000 = getTimestamp(fixture); | |
150 | fixture.seekIndex(0); | |
151 | seekIndex_0 = getTimestamp(fixture); | |
152 | ||
153 | fixture.seekIndex(rank); | |
154 | seekIndex_300000 = getTimestamp(fixture); | |
155 | System.out.print(cr); | |
156 | System.out.println("seek(0) " + seekTime_0 + cr + //$NON-NLS-1$ | |
157 | "seekIndex(0) " + seekIndex_0 + cr + //$NON-NLS-1$ | |
158 | "Next(300000) " + seekNext_300000 + cr + //$NON-NLS-1$ | |
159 | "seek(time(300000)) " + seekTime_300000 + cr + //$NON-NLS-1$ | |
160 | "seekIndex(300000) " + seekIndex_300000 //$NON-NLS-1$ | |
161 | ); | |
162 | } | |
163 | ||
164 | /** | |
165 | * @param timestamp | |
166 | * the timestamp in UTC to convert to nanoseconds. | |
167 | * @return formatted string. | |
168 | */ | |
169 | private static String formatDate(long timestamp) { | |
170 | Date d = new Date(timestamp / 1000000); | |
171 | DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss."); //$NON-NLS-1$ | |
172 | String output = df.format(d) + (timestamp % 1000000000); | |
173 | return output; | |
174 | } | |
175 | } |