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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 | package org.eclipse.linuxtools.tmf.core.tests.ctfadaptor.headless; | |
13 | ||
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14 | import java.text.DateFormat; |
15 | import java.text.SimpleDateFormat; | |
16 | import java.util.Date; | |
17 | import java.util.Vector; | |
18 | ||
19 | import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfIterator; | |
20 | import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfTmfEvent; | |
21 | import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfTmfTrace; | |
b4f71e4a | 22 | import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException; |
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23 | |
24 | public class Benchmark { | |
25 | ||
26 | /** | |
27 | * @param args | |
28 | */ | |
29 | @SuppressWarnings("nls") | |
25e48683 | 30 | public static void main(final String[] args) { |
aa572e22 | 31 | final String TRACE_PATH = "testfiles/kernel"; |
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32 | final int NUM_LOOPS = 100; |
33 | ||
34 | // Change this to enable text output | |
aa572e22 | 35 | final boolean USE_TEXT = true; |
ce2388e0 | 36 | |
aa572e22 MK |
37 | // try { |
38 | // System.in.read(); | |
39 | // } catch (final IOException e1) { | |
40 | // e1.printStackTrace(); | |
41 | // } | |
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42 | // Work variables |
43 | Long nbEvent = 0L; | |
25e48683 | 44 | final Vector<Double> benchs = new Vector<Double>(); |
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45 | CtfTmfTrace trace = null; |
46 | long start, stop; | |
47 | for (int loops = 0; loops < NUM_LOOPS; loops++) { | |
48 | nbEvent = 0L; | |
49 | trace = new CtfTmfTrace(); | |
50 | try { | |
25e48683 | 51 | trace.initTrace(null, TRACE_PATH, CtfTmfEvent.class); |
b4f71e4a | 52 | } catch (final TmfTraceException e) { |
ce2388e0 FC |
53 | loops = NUM_LOOPS +1; |
54 | break; | |
55 | } | |
56 | ||
57 | start = System.nanoTime(); | |
58 | if (nbEvent != -1) { | |
25e48683 | 59 | final CtfIterator traceReader = (CtfIterator) trace.seekEvent(0); |
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60 | |
61 | start = System.nanoTime(); | |
62 | CtfTmfEvent current = traceReader.getCurrentEvent(); | |
63 | while (current != null) { | |
64 | nbEvent++; | |
65 | if (USE_TEXT) { | |
aa572e22 | 66 | |
ce2388e0 | 67 | System.out.println("Event " + traceReader.getRank() + " Time " |
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68 | + current.getTimestamp().toString() + " type " + current.getEventName() |
69 | + " on CPU " + current.getSource() + " " + current.getContent().toString()) ; | |
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70 | } |
71 | traceReader.advance(); | |
72 | current = traceReader.getCurrentEvent(); | |
73 | } | |
74 | } | |
75 | stop = System.nanoTime(); | |
76 | System.out.print('.'); | |
25e48683 | 77 | final double time = (stop - start) / (double) nbEvent; |
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78 | benchs.add(time); |
79 | } | |
80 | System.out.println(""); | |
81 | double avg = 0; | |
aa572e22 | 82 | for (final Double val : benchs) { |
ce2388e0 | 83 | avg += val; |
aa572e22 | 84 | } |
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85 | avg /= benchs.size(); |
86 | System.out.println("Time to read = " + avg + " events/ns"); | |
25e48683 | 87 | for (final Double val : benchs) { |
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88 | System.out.print(val); |
89 | System.out.print(", "); | |
90 | } | |
91 | ||
92 | } | |
93 | ||
94 | /** | |
95 | * @param timestamp | |
96 | * the timestamp in UTC to convert to nanoseconds. | |
97 | * @return formatted string. | |
98 | */ | |
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99 | private static String formatDate(final long timestamp) { |
100 | final Date d = new Date(timestamp / 1000000); | |
101 | final DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss."); //$NON-NLS-1$ | |
102 | final String output = df.format(d) + (timestamp % 1000000000); | |
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103 | return output; |
104 | } | |
105 | ||
106 | } |