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/*******************************************************************************
* Copyright (c) 2012 Ericsson
*
* All rights reserved. This program and the accompanying materials are
* made available under the terms of the Eclipse Public License v1.0 which
* accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Matthew Khouzam - Initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.tmf.core.tests.ctfadaptor.headless;
import java.io.FileNotFoundException;
<<<<<<< HEAD
=======
import java.io.IOException;
>>>>>>> fe56c70... Added a headless test
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Vector;
import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfIterator;
import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfTmfEvent;
import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfTmfTrace;
public class Benchmark {
/**
* @param args
*/
@SuppressWarnings("nls")
public static void main(String[] args) {
final String TRACE_PATH = "../org.eclipse.linuxtools.ctf.core.tests/Tests/traces/trace20m1";
final int NUM_LOOPS = 100;
// Change this to enable text output
final boolean USE_TEXT = false;
try {
System.in.read();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// Work variables
Long nbEvent = 0L;
Vector<Double> benchs = new Vector<Double>();
CtfTmfTrace trace = null;
long start, stop;
for (int loops = 0; loops < NUM_LOOPS; loops++) {
nbEvent = 0L;
trace = new CtfTmfTrace();
try {
trace.initTrace("Test", TRACE_PATH, CtfTmfEvent.class, 1);
} catch (FileNotFoundException e) {
loops = NUM_LOOPS +1;
break;
}
start = System.nanoTime();
if (nbEvent != -1) {
CtfIterator traceReader = (CtfIterator) trace.seekEvent(0);
start = System.nanoTime();
CtfTmfEvent current = traceReader.getCurrentEvent();
while (current != null) {
nbEvent++;
if (USE_TEXT) {
String output = formatDate(current.getTimestampValue());
System.out.println("Event " + traceReader.getRank() + " Time "
+ output + " type " + current.getSource()
+ " on CPU " + current.getCPU());
}
traceReader.advance();
current = traceReader.getCurrentEvent();
}
}
stop = System.nanoTime();
System.out.print('.');
double time = (stop - start) / (double) nbEvent;
benchs.add(time);
}
System.out.println("");
double avg = 0;
for (Double val : benchs) {
avg += val;
}
avg /= benchs.size();
System.out.println("Time to read = " + avg + " events/ns");
for (Double val : benchs) {
System.out.print(val);
System.out.print(", ");
}
}
/**
* @param timestamp
* the timestamp in UTC to convert to nanoseconds.
* @return formatted string.
*/
private static String formatDate(long timestamp) {
Date d = new Date(timestamp / 1000000);
DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss."); //$NON-NLS-1$
String output = df.format(d) + (timestamp % 1000000000);
return output;
}
}
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