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 import static org.junit.Assume.assumeTrue;
  18
  19 import org.eclipse.test.performance.Dimension;
  20 import org.eclipse.test.performance.Performance;
  21 import org.eclipse.test.performance.PerformanceMeter;
  22 import org.eclipse.tracecompass.ctf.core.CTFException;
  23 import org.eclipse.tracecompass.ctf.core.event.EventDefinition;
  24 import org.eclipse.tracecompass.ctf.core.tests.shared.CtfTestTrace;
  25 import org.eclipse.tracecompass.ctf.core.trace.CTFTrace;
  26 import org.eclipse.tracecompass.ctf.core.trace.CTFTraceReader;
  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         assumeTrue(testTrace.exists());
  59
  60         Performance perf = Performance.getDefault();
  61         PerformanceMeter pm = perf.createPerformanceMeter(TEST_ID + '#' + testName);
  62         perf.tagAsSummary(pm, TEST_SUITE_NAME + ':' + testName, Dimension.CPU_TIME);
  63
  64         if (inGlobalSummary) {
  65             perf.tagAsGlobalSummary(pm, TEST_SUITE_NAME + ':' + testName, Dimension.CPU_TIME);
  66         }
  67
  68         for (int loop = 0; loop < LOOP_COUNT; loop++) {
  69             pm.start();
  70             try {
  71                 CTFTrace trace = testTrace.getTrace();
  72                 try (CTFTraceReader traceReader = new CTFTraceReader(trace);) {
  73
  74                     while (traceReader.hasMoreEvents()) {
  75                         EventDefinition ed = traceReader.getCurrentEventDef();
  76                         /* Do something with the event */
  77                         ed.getCPU();
  78                         traceReader.advance();
  79                     }
  80                 }
  81             } catch (CTFException e) {
  82                 /* Should not happen if assumeTrue() passed above */
  83                 fail("Test failed at iteration " + loop + ':' + e.getMessage());
  84             }
  85             pm.stop();
  86         }
  87         pm.commit();
  88     }
  89 }