org.eclipse.linuxtools.lttng2.kernel.core.tests/perf/org/eclipse/linuxtools/lttng2/kernel/core/tests/perf/event/matching/TraceSynchronizationBenchmark.java

   1 /*******************************************************************************
   2  * Copyright (c) 2014 École Polytechnique de Montréal
   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  *   Geneviève Bastien - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.lttng2.kernel.core.tests.perf.event.matching;
  14
  15 import static org.junit.Assert.assertNotNull;
  16 import static org.junit.Assume.assumeTrue;
  17
  18 import java.util.Arrays;
  19
  20 import org.eclipse.linuxtools.lttng2.kernel.core.event.matching.TcpEventMatching;
  21 import org.eclipse.linuxtools.lttng2.kernel.core.event.matching.TcpLttngEventMatching;
  22 import org.eclipse.linuxtools.tmf.core.event.matching.TmfEventMatching;
  23 import org.eclipse.linuxtools.tmf.core.synchronization.SynchronizationAlgorithm;
  24 import org.eclipse.linuxtools.tmf.core.synchronization.SynchronizationManager;
  25 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  26 import org.eclipse.linuxtools.tmf.ctf.core.CtfTmfTrace;
  27 import org.eclipse.linuxtools.tmf.ctf.core.tests.shared.CtfTmfTestTrace;
  28 import org.eclipse.test.performance.Dimension;
  29 import org.eclipse.test.performance.Performance;
  30 import org.eclipse.test.performance.PerformanceMeter;
  31 import org.junit.BeforeClass;
  32 import org.junit.Test;
  33
  34 /**
  35  * Benchmark trace synchronization
  36  *
  37  * @author Geneviève Bastien
  38  */
  39 public class TraceSynchronizationBenchmark {
  40
  41     private static final String TEST_ID = "org.eclipse.linuxtools#Trace synchronization#";
  42     private static final String TIME = " (time)";
  43     private static final String MEMORY = " (memory usage)";
  44     private static final String TEST_SUMMARY = "Trace synchronization";
  45
  46     /**
  47      * Initialize some data
  48      */
  49     @BeforeClass
  50     public static void setUp() {
  51         TmfEventMatching.registerMatchObject(new TcpEventMatching());
  52         TmfEventMatching.registerMatchObject(new TcpLttngEventMatching());
  53     }
  54
  55     /**
  56      * Run the benchmark with 2 small traces
  57      */
  58     @Test
  59     public void testSmallTraces() {
  60         assumeTrue(CtfTmfTestTrace.SYNC_SRC.exists());
  61         assumeTrue(CtfTmfTestTrace.SYNC_DEST.exists());
  62         try (CtfTmfTrace trace1 = CtfTmfTestTrace.SYNC_SRC.getTrace();
  63                 CtfTmfTrace trace2 = CtfTmfTestTrace.SYNC_DEST.getTrace();) {
  64             ITmfTrace[] traces = { trace1, trace2 };
  65             runCpuTest(traces, "Match TCP events", 40);
  66         }
  67     }
  68
  69     /**
  70      * Run the benchmark with 3 bigger traces
  71      */
  72     @Test
  73     public void testDjangoTraces() {
  74         assumeTrue(CtfTmfTestTrace.DJANGO_CLIENT.exists());
  75         assumeTrue(CtfTmfTestTrace.DJANGO_DB.exists());
  76         assumeTrue(CtfTmfTestTrace.DJANGO_HTTPD.exists());
  77         try (CtfTmfTrace trace1 = CtfTmfTestTrace.DJANGO_CLIENT.getTrace();
  78                 CtfTmfTrace trace2 = CtfTmfTestTrace.DJANGO_DB.getTrace();
  79                 CtfTmfTrace trace3 = CtfTmfTestTrace.DJANGO_HTTPD.getTrace();) {
  80             ITmfTrace[] traces = { trace1, trace2, trace3 };
  81             runCpuTest(traces, "Django traces", 10);
  82             runMemoryTest(traces, "Django traces", 10);
  83         }
  84     }
  85
  86     private static void runCpuTest(ITmfTrace[] testTraces, String testName, int loop_count) {
  87         Performance perf = Performance.getDefault();
  88         PerformanceMeter pm = perf.createPerformanceMeter(TEST_ID + testName + TIME);
  89         perf.tagAsSummary(pm, TEST_SUMMARY + ':' + testName + TIME, Dimension.CPU_TIME);
  90
  91         for (int i = 0; i < loop_count; i++) {
  92             pm.start();
  93             SynchronizationManager.synchronizeTraces(null, Arrays.asList(testTraces), true);
  94             pm.stop();
  95         }
  96         pm.commit();
  97
  98     }
  99
 100     /* Benchmark memory used by the algorithm */
 101     private static void runMemoryTest(ITmfTrace[] testTraces, String testName, int loop_count) {
 102         Performance perf = Performance.getDefault();
 103         PerformanceMeter pm = perf.createPerformanceMeter(TEST_ID + testName + MEMORY);
 104         perf.tagAsSummary(pm, TEST_SUMMARY + ':' + testName + MEMORY, Dimension.USED_JAVA_HEAP);
 105
 106         for (int i = 0; i < loop_count; i++) {
 107
 108             System.gc();
 109             pm.start();
 110             SynchronizationAlgorithm algo = SynchronizationManager.synchronizeTraces(null, Arrays.asList(testTraces), true);
 111             assertNotNull(algo);
 112
 113             System.gc();
 114             pm.stop();
 115         }
 116         pm.commit();
 117     }
 118 }