/*******************************************************************************
* Copyright (c) 2014 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:
* Vincent Perot - Initial API and implementation
*******************************************************************************/
package org.eclipse.tracecompass.pcap.core.tests.perf.trace;
import static org.junit.Assert.fail;
import static org.junit.Assume.assumeTrue;
import java.io.IOException;
import org.eclipse.test.performance.Dimension;
import org.eclipse.test.performance.Performance;
import org.eclipse.test.performance.PerformanceMeter;
import org.eclipse.tracecompass.internal.pcap.core.packet.BadPacketException;
import org.eclipse.tracecompass.internal.pcap.core.packet.Packet;
import org.eclipse.tracecompass.internal.pcap.core.trace.BadPcapFileException;
import org.eclipse.tracecompass.internal.pcap.core.trace.PcapFile;
import org.eclipse.tracecompass.pcap.core.tests.shared.PcapTestTrace;
import org.junit.Test;
/**
* Benchmark of the Pcap parser for reading a trace. Note: We should get a
* bigger trace. One that has WAYYYY more events since this current trace is
* just parsed too fast.
*
* @author Vincent Perot
*/
public class PcapReadBenchmark {
private static final String TEST_SUITE_NAME = "Pcap Read Benchmark";
private static final String TEST_ID = "org.eclipse.linuxtools#" + TEST_SUITE_NAME;
private static final int LOOP_COUNT = 25;
private static final int RUN_BETWEEN_COMMIT_COUNT = 15;
/**
* Benchmark reading the pcap trace
*/
@Test
public void testPcapTrace() {
readTrace(PcapTestTrace.BENCHMARK_TRACE, "trace-pcap", true);
}
private static void readTrace(PcapTestTrace testTrace, String testName, boolean inGlobalSummary) {
assumeTrue(testTrace.exists());
Performance perf = Performance.getDefault();
PerformanceMeter pm = perf.createPerformanceMeter(TEST_ID + '#' + testName);
perf.tagAsSummary(pm, TEST_SUITE_NAME + ':' + testName, Dimension.CPU_TIME);
if (inGlobalSummary) {
perf.tagAsGlobalSummary(pm, TEST_SUITE_NAME + ':' + testName, Dimension.CPU_TIME);
}
for (int loop = 0; loop < LOOP_COUNT; loop++) {
pm.start();
try (PcapFile trace = testTrace.getTrace();) {
for (int i = 0; i < RUN_BETWEEN_COMMIT_COUNT; i++) {
trace.seekPacket(0);
while (trace.hasNextPacket()) {
Packet packet = trace.parseNextPacket();
if (packet == null) {
fail("Test failed at iteration " + loop + '.' + i + ", at packet " + trace.getCurrentRank());
return;
}
/* Do something with the packet because we are awesome */
packet.getPayload();
}
}
} catch (IOException | BadPcapFileException | BadPacketException e) {
fail("Test failed at iteration " + loop + ':' + e.getMessage());
}
pm.stop();
}
pm.commit();
}
}