ctf/org.eclipse.tracecompass.ctf.core.tests/perf/org/eclipse/tracecompass/ctf/core/tests/perf/trace/TraceReadBenchmark.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 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  *   Matthew Khouzam - Initial API and implementation
  11  *   Alexandre Montplaisir - Convert to a org.eclipse.test.performance test
  12  *******************************************************************************/
  13
  14 package org.eclipse.tracecompass.ctf.core.tests.perf.trace;
  15
  16 import static org.junit.Assert.fail;
  17
  18 import org.eclipse.test.performance.Dimension;
  19 import org.eclipse.test.performance.Performance;
  20 import org.eclipse.test.performance.PerformanceMeter;
  21 import org.eclipse.tracecompass.ctf.core.CTFException;
  22 import org.eclipse.tracecompass.ctf.core.event.EventDefinition;
  23 import org.eclipse.tracecompass.ctf.core.tests.shared.CtfTestTraceUtils;
  24 import org.eclipse.tracecompass.ctf.core.trace.CTFTrace;
  25 import org.eclipse.tracecompass.ctf.core.trace.CTFTraceReader;
  26 import org.eclipse.tracecompass.testtraces.ctf.CtfTestTrace;
  27 import org.junit.Test;
  28
  29 /**
  30  * Benchmark of the CTF parser for reading a trace
  31  *
  32  * @author Matthew Khouzam
  33  * @author Alexandre Montplaisir
  34  */
  35 public class TraceReadBenchmark {
  36
  37     private static final String TEST_SUITE_NAME = "CTF Read Benchmark";
  38     private static final String TEST_ID = "org.eclipse.linuxtools#" + TEST_SUITE_NAME;
  39     private static final int LOOP_COUNT = 100;
  40
  41     /**
  42      * Benchmark reading the trace "kernel"
  43      */
  44     @Test
  45     public void testKernelTrace() {
  46         readTrace(CtfTestTrace.KERNEL, "trace-kernel", true);
  47     }
  48
  49     /**
  50      * Benchmark reading the bigger trace "kernel_vm"
  51      */
  52     @Test
  53     public void testKernelVmTrace() {
  54         readTrace(CtfTestTrace.KERNEL_VM, "trace-kernel-vm", false);
  55     }
  56
  57     private static void readTrace(CtfTestTrace testTrace, String testName, boolean inGlobalSummary) {
  58         Performance perf = Performance.getDefault();
  59         PerformanceMeter pm = perf.createPerformanceMeter(TEST_ID + '#' + testName);
  60         perf.tagAsSummary(pm, TEST_SUITE_NAME + ':' + testName, Dimension.CPU_TIME);
  61
  62         if (inGlobalSummary) {
  63             perf.tagAsGlobalSummary(pm, TEST_SUITE_NAME + ':' + testName, Dimension.CPU_TIME);
  64         }
  65
  66         for (int loop = 0; loop < LOOP_COUNT; loop++) {
  67             pm.start();
  68             try {
  69                 CTFTrace trace = CtfTestTraceUtils.getTrace(testTrace);
  70                 try (CTFTraceReader traceReader = new CTFTraceReader(trace);) {
  71
  72                     while (traceReader.hasMoreEvents()) {
  73                         EventDefinition ed = traceReader.getCurrentEventDef();
  74                         /* Do something with the event */
  75                         ed.getCPU();
  76                         traceReader.advance();
  77                     }
  78                 }
  79             } catch (CTFException e) {
  80                 /* Should not happen if assumeTrue() passed above */
  81                 fail("Test failed at iteration " + loop + ':' + e.getMessage());
  82             }
  83             pm.stop();
  84         }
  85         pm.commit();
  86     }
  87 }