| /******************************************************************************* |
| * Copyright (c) 2014, 2018 Ericsson |
| * |
| * All rights reserved. This program and the accompanying materials are made |
| * available under the terms of the Eclipse Public License 2.0 which |
| * accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Matthew Khouzam - Initial API and implementation |
| * Geneviève Bastien - Convert to JUnit performance test |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.tmf.ctf.core.tests.perf.experiment; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.eclipse.core.runtime.FileLocator; |
| import org.eclipse.test.performance.Dimension; |
| import org.eclipse.test.performance.Performance; |
| import org.eclipse.test.performance.PerformanceMeter; |
| import org.eclipse.tracecompass.testtraces.ctf.CtfTestTrace; |
| import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; |
| import org.eclipse.tracecompass.tmf.core.exceptions.TmfTraceException; |
| import org.eclipse.tracecompass.tmf.core.request.ITmfEventRequest; |
| import org.eclipse.tracecompass.tmf.core.request.ITmfEventRequest.ExecutionType; |
| import org.eclipse.tracecompass.tmf.core.request.TmfEventRequest; |
| import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; |
| import org.eclipse.tracecompass.tmf.ctf.core.trace.CtfTmfTrace; |
| import org.eclipse.tracecompass.tmf.tests.stubs.trace.TmfExperimentStub; |
| import org.junit.Test; |
| |
| /** |
| * Coalescing benchmark |
| * |
| * @author Matthew Khouzam |
| */ |
| public class ExperimentBenchmark { |
| |
| private static final String TEST_ID = "org.eclipse.linuxtools#Experiment benchmark#"; |
| private static final int MAX_TRACES = 160; |
| private static final int BLOCK_SIZE = 100; |
| private static final String TRACES_ROOT_PATH; |
| static { |
| try { |
| TRACES_ROOT_PATH = FileUtils.toFile(FileLocator.toFileURL(CtfTestTrace.TRACE_EXPERIMENT.getTraceURL())).getAbsolutePath(); |
| } catch (IOException e) { |
| throw new IllegalStateException(); |
| } |
| } |
| private static final int SAMPLE_SIZE_SLOW = 20; |
| private static final int SAMPLE_SIZE = 100; |
| |
| private TmfExperimentStub fExperiment; |
| |
| /** |
| * Run the benchmark |
| */ |
| @Test |
| public void benchmarkExperimentSizeRequest() { |
| Performance perf = Performance.getDefault(); |
| |
| for (int numTraces = 1; numTraces < MAX_TRACES; numTraces = (int) (1.6 * (numTraces + 1))) { |
| PerformanceMeter pm = perf.createPerformanceMeter(TEST_ID + numTraces + " traces"); |
| perf.tagAsSummary(pm, "Experiment Benchmark:" + numTraces + " traces", Dimension.CPU_TIME); |
| if ((int) (1.6 * (numTraces + 1)) > MAX_TRACES) { |
| perf.tagAsGlobalSummary(pm, "Experiment Benchmark:" + numTraces + " traces", Dimension.CPU_TIME); |
| } |
| |
| int sampleSize = SAMPLE_SIZE; |
| if (numTraces > 20) { |
| sampleSize = SAMPLE_SIZE_SLOW; |
| } |
| |
| for (int s = 0; s < sampleSize; s++) { |
| |
| InnerEventRequest expReq = new InnerEventRequest(ITmfEvent.class, 0, ITmfEventRequest.ALL_DATA, ExecutionType.BACKGROUND); |
| InnerEventRequest traceReq[] = new InnerEventRequest[numTraces]; |
| |
| init(numTraces); |
| fExperiment.sendRequest(expReq); |
| List<ITmfTrace> traces = fExperiment.getTraces(); |
| for (int i = 0; i < numTraces; i++) { |
| traceReq[i] = new InnerEventRequest(ITmfEvent.class, 0, ITmfEventRequest.ALL_DATA, ExecutionType.BACKGROUND); |
| traces.get(i).sendRequest(traceReq[i]); |
| } |
| |
| pm.start(); |
| waitForRequest(expReq, traceReq); |
| pm.stop(); |
| |
| for (int i = 0; i < traces.size(); i++) { |
| if (!expReq.isTraceHandled(traces.get(i))) { |
| System.err.println("Trace " + i + " not handled!"); |
| } |
| } |
| |
| fExperiment.dispose(); |
| } |
| pm.commit(); |
| } |
| } |
| |
| /** |
| * Initialization |
| * |
| * @param maxTraces |
| * maximum number of traces to open |
| */ |
| private void init(int maxTraces) { |
| try { |
| File parentDir = new File(TRACES_ROOT_PATH); |
| File[] traceFiles = parentDir.listFiles(); |
| ITmfTrace[] traces = new CtfTmfTrace[Math.min(maxTraces, traceFiles.length)]; |
| for (int i = 0; i < traces.length; i++) { |
| traces[i] = new CtfTmfTrace(); |
| } |
| int j = 0; |
| for (int i = 0; i < (traces.length) && (j < traces.length); i++) { |
| String absolutePath = traceFiles[j].getAbsolutePath(); |
| if (traces[i].validate(null, absolutePath).isOK()) { |
| traces[i].initTrace(null, absolutePath, ITmfEvent.class); |
| } else { |
| i--; |
| } |
| j++; |
| } |
| fExperiment = new TmfExperimentStub("MegaExperiment", traces, BLOCK_SIZE); |
| if (traces[traces.length - 1].getPath() == null) { |
| throw new TmfTraceException("Insufficient valid traces in directory"); |
| } |
| } catch (TmfTraceException e) { |
| System.out.println(e.getMessage()); |
| } |
| } |
| |
| private static void waitForRequest(InnerEventRequest expReq, InnerEventRequest[] traceReqs) { |
| try { |
| expReq.waitForCompletion(); |
| List<InnerEventRequest> reqs = Arrays.asList(traceReqs); |
| for (InnerEventRequest traceReq : reqs) { |
| traceReq.waitForCompletion(); |
| } |
| } catch (InterruptedException e) { |
| } |
| } |
| |
| private static class InnerEventRequest extends TmfEventRequest { |
| private Set<String> fTraces = new HashSet<>(); |
| |
| public InnerEventRequest(Class<? extends ITmfEvent> dataType, long index, int nbRequested, ExecutionType priority) { |
| super(dataType, index, nbRequested, priority); |
| } |
| |
| @Override |
| public void handleData(ITmfEvent event) { |
| super.handleData(event); |
| if (!fTraces.contains(event.getTrace().getName())) { |
| fTraces.add(event.getTrace().getName()); |
| } |
| } |
| |
| public boolean isTraceHandled(ITmfTrace trace) { |
| return fTraces.contains(trace.getName()); |
| } |
| } |
| } |