org.eclipse.linuxtools.pcap.core.tests/perf/org/eclipse/linuxtools/pcap/core/tests/perf/trace/PcapReadBenchmark.java

   1 /*******************************************************************************
   2  * Copyright (c) 2014 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  *   Vincent Perot - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.pcap.core.tests.perf.trace;
  14
  15 import static org.junit.Assert.fail;
  16 import static org.junit.Assume.assumeTrue;
  17
  18 import java.io.IOException;
  19
  20 import org.eclipse.linuxtools.pcap.core.packet.BadPacketException;
  21 import org.eclipse.linuxtools.pcap.core.packet.Packet;
  22 import org.eclipse.linuxtools.pcap.core.tests.shared.PcapTestTrace;
  23 import org.eclipse.linuxtools.pcap.core.trace.BadPcapFileException;
  24 import org.eclipse.linuxtools.pcap.core.trace.PcapFile;
  25 import org.eclipse.test.performance.Dimension;
  26 import org.eclipse.test.performance.Performance;
  27 import org.eclipse.test.performance.PerformanceMeter;
  28 import org.junit.Test;
  29
  30
  31 /**
  32  * Benchmark of the Pcap parser for reading a trace. Note: We should get a bigger trace. One
  33  * that has WAYYYY more events since this current trace is just parsed too fast.
  34  *
  35  * @author Vincent Perot
  36  */
  37 public class PcapReadBenchmark {
  38
  39     private static final String TEST_SUITE_NAME = "Pcap Read Benchmark";
  40     private static final String TEST_ID = "org.eclipse.linuxtools#" + TEST_SUITE_NAME;
  41     private static final int LOOP_COUNT = 25;
  42
  43     /**
  44      * Benchmark reading the pcap trace
  45      */
  46     @Test
  47     public void testPcapTrace() {
  48         readTrace(PcapTestTrace.MOSTLY_UDP, "trace-pcap", true);
  49     }
  50
  51     private static void readTrace(PcapTestTrace testTrace, String testName, boolean inGlobalSummary) {
  52         assumeTrue(testTrace.exists());
  53
  54         Performance perf = Performance.getDefault();
  55         PerformanceMeter pm = perf.createPerformanceMeter(TEST_ID + '#' + testName);
  56         perf.tagAsSummary(pm, TEST_SUITE_NAME + ':' + testName, Dimension.CPU_TIME);
  57
  58         if (inGlobalSummary) {
  59             perf.tagAsGlobalSummary(pm, TEST_SUITE_NAME + ':' + testName, Dimension.CPU_TIME);
  60         }
  61
  62         for (int loop = 0; loop < LOOP_COUNT; loop++) {
  63             pm.start();
  64             try (PcapFile trace = testTrace.getTrace();) {
  65                 trace.seekPacket(0);
  66                 while (trace.hasNextPacket()) {
  67                     Packet packet = trace.parseNextPacket();
  68                     if (packet == null) {
  69                         fail("Test failed at iteration " + loop + " packet " + trace.getCurrentRank());
  70                         return;
  71                     }
  72                     /* Do something with the packet because we are awesome */
  73                     packet.getPayload();
  74                 }
  75
  76             } catch (IOException | BadPcapFileException | BadPacketException e) {
  77                 fail("Test failed at iteration " + loop + ':' + e.getMessage());
  78             }
  79             pm.stop();
  80         }
  81         pm.commit();
  82     }
  83 }