org.eclipse.debug.tests/src/org/eclipse/debug/tests/viewer/model/PerformanceTests.java - gerrit/platform/eclipse.platform.debug - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009, 2013 Wind River Systems and others.
  *
  * 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:
  *     Wind River Systems - initial API and implementation
  *     IBM Corporation - bug fixing
  *******************************************************************************/
 package org.eclipse.debug.tests.viewer.model;

 import org.eclipse.debug.internal.ui.viewers.model.IInternalTreeModelViewer;
 import org.eclipse.debug.internal.ui.viewers.model.provisional.IModelDelta;
 import org.eclipse.debug.internal.ui.viewers.model.provisional.ModelDelta;
 import org.eclipse.debug.tests.viewer.model.TestModel.TestElement;
 import org.eclipse.jface.viewers.TreePath;
 import org.eclipse.jface.viewers.TreeSelection;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerFilter;
 import org.eclipse.test.performance.Performance;
 import org.eclipse.test.performance.PerformanceMeter;
 import org.junit.Before;
 import org.junit.Test;

 /**
  * Tests to measure the performance of the viewer updates.
  */
 abstract public class PerformanceTests extends AbstractViewerModelTest implements ITestModelUpdatesListenerConstants {

 	protected VisibleVirtualItemValidator fVirtualItemValidator;

 	public String getDefaultScenarioId() {
 		return this.getClass().getName() + '#' + name.getMethodName() + "()"; //$NON-NLS-1$
 	}

 	@Override
 	protected TestModelUpdatesListener createListener(IInternalTreeModelViewer viewer) {
 		return new TestModelUpdatesListener(viewer, false, false);
 	}

 	@Override
 	@Before
 	public void setUp() throws Exception {
 		super.setUp();
 		fVirtualItemValidator = new VisibleVirtualItemValidator(0, Integer.MAX_VALUE);
 	}

 	/**
 	 * Depth (size) of the test model to be used in the tests.  This number allows
 	 * the jface based tests to use a small enough model to fit on the screen, and
 	 * for the virtual viewer to exercise the content provider to a greater extent.
 	 */
 	abstract protected int getTestModelDepth();

 	@Test
 	public void testRefreshStruct() throws Exception {
 		TestModel model = new TestModel();
 		model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
 		model.setElementChildren(TreePath.EMPTY, TestModel.makeMultiLevelElements(model, getTestModelDepth(), "model.")); //$NON-NLS-1$

 		fViewer.setAutoExpandLevel(-1);

 		// Create the listener
 		fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

 		// Set the input into the view and update the view.
 		fViewer.setInput(model.getRootElement());
 		waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
 		model.validateData(fViewer, TreePath.EMPTY);

 		Performance perf = Performance.getDefault();
 		PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
 		try {
 			for (int i = 0; i < 10; i++) {
 				// Update the model
 				model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

 				TestElement element = model.getRootElement();
 				fListener.reset(TreePath.EMPTY, element, -1, false, false);

 				meter.start();
 				model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
 				waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE | MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
 				meter.stop();
 				System.gc();
 			}

 			meter.commit();
 			perf.assertPerformance(meter);
 		} finally {
 			meter.dispose();
 		}
 	}

 	@Test
 	public void testRefreshStruct2() throws Exception {
 		TestModel model = new TestModel();
 		model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
 		model.setElementChildren(TreePath.EMPTY, TestModel.makeMultiLevelElements2(model, new int[] { 2, 3000, 1 }, "model.")); //$NON-NLS-1$

 		fViewer.setAutoExpandLevel(2);
 		// Create the listener
 		//fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, false, false);
 		fListener.reset();

 		// Set the input into the view and update the view.
 		fViewer.setInput(model.getRootElement());
 		waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE), createListenerErrorMessage());

 		fVirtualItemValidator.setVisibleRange(0, 50);

 		Performance perf = Performance.getDefault();
 		PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
 		try {
 			for (int i = 0; i < 100; i++) {
 				// Update the model
 				model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

 				TestElement element = model.getRootElement();
 				//fListener.reset(TreePath.EMPTY, element, -1, false, false);
 				fListener.reset();

 				meter.start();
 				model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
 				waitWhile(t -> !fListener.isFinished(MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
 				model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
 				waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE | MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
 				meter.stop();
 				System.gc();
 			}

 			meter.commit();
 			perf.assertPerformance(meter);
 		} finally {
 			meter.dispose();
 		}
 	}

 	@Test
 	public void testRefreshStructReplaceElements() throws Exception {
 		TestModel model = new TestModel();
 		model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
 		model.setElementChildren(TreePath.EMPTY, TestModel.makeMultiLevelElements(model, getTestModelDepth(), "model.")); //$NON-NLS-1$

 		fViewer.setAutoExpandLevel(-1);

 		// Create the listener
 		fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

 		// Set the input into the view and update the view.
 		fViewer.setInput(model.getRootElement());
 		waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
 		model.validateData(fViewer, TreePath.EMPTY);

 		Performance perf = Performance.getDefault();
 		PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
 		try {
 			for (int i = 0; i < 100; i++) {
 				// Update the model
 				model.setElementChildren(TreePath.EMPTY, TestModel.makeMultiLevelElements(model, getTestModelDepth(), "pass " + i + ".")); //$NON-NLS-1$ //$NON-NLS-2$

 				TestElement element = model.getRootElement();
 				fListener.reset(TreePath.EMPTY, element, -1, false, false);

 				meter.start();
 				model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
 				waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE | MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
 				meter.stop();
 				System.gc();
 			}

 			meter.commit();
 			perf.assertPerformance(meter);
 		} finally {
 			meter.dispose();
 		}
 	}

 	@Test
 	public void testRefreshList() throws Exception {
 		TestModel model = new TestModel();
 		model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
 		int numElements = (int)Math.pow(2, getTestModelDepth());
 		model.setElementChildren(TreePath.EMPTY, TestModel.makeSingleLevelModelElements(model, numElements, "model.")); //$NON-NLS-1$

 		fViewer.setAutoExpandLevel(-1);

 		// Create the listener
 		fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

 		// Set the input into the view and update the view.
 		fViewer.setInput(model.getRootElement());
 		waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
 		model.validateData(fViewer, TreePath.EMPTY);

 		Performance perf = Performance.getDefault();
 		PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
 		try {
 			for (int i = 0; i < 100; i++) {
 				// Update the model
 				model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

 				TestElement element = model.getRootElement();
 				fListener.reset(TreePath.EMPTY, element, -1, false, false);

 				meter.start();
 				model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
 				waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE | MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
 				meter.stop();
 				System.gc();
 			}

 			meter.commit();
 			perf.assertPerformance(meter);
 		} finally {
 			meter.dispose();
 		}
 	}

 	@Test
 	public void testSaveAndRestore() throws Exception {
 		//TreeModelViewerAutopopulateAgent autopopulateAgent = new TreeModelViewerAutopopulateAgent(fViewer);
 		TestModel model = TestModel.simpleMultiLevel();

 		// expand all elements
 		fViewer.setAutoExpandLevel(-1);

 		// Create the listener, only check the first level
 		fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

 		// Set the input into the view and update the view.
 		fViewer.setInput(model.getRootElement());
 		waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
 		model.validateData(fViewer, TreePath.EMPTY);

 		// Set a selection in view
 		fViewer.setSelection(new TreeSelection(model.findElement("3.2.3"))); //$NON-NLS-1$

 		// Turn off the auto-expand now since we want to text the auto-expand logic
 		fViewer.setAutoExpandLevel(-1);

 		Performance perf = Performance.getDefault();
 		PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
 		try {
 			for (int i = 0; i < 100; i++) {
 				// Update the model
 				model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

 				// Set the viewer input to null.  This will trigger the view to save the viewer state.
 				fListener.reset(true, false);

 				meter.start();
 				fViewer.setInput(null);
 				waitWhile(t -> !fListener.isFinished(STATE_SAVE_COMPLETE), createListenerErrorMessage());

 				// Set the viewer input back to the model.  When view updates are complete
 				// the viewer
 				// Note: disable redundant updates because the reveal delta triggers one.
 				fListener.reset(TreePath.EMPTY, model.getRootElement(), 1, false, false);
 				// TODO: add state updates somehow?
 				fViewer.setInput(model.getRootElement());
 				waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE | STATE_RESTORE_COMPLETE), createListenerErrorMessage());
 				meter.stop();
 				System.gc();
 			}

 			meter.commit();
 			perf.assertPerformance(meter);
 		} finally {
 			meter.dispose();
 		}

 	}

 	@Test
 	public void testRefreshListFiltered() throws Exception {
 		TestModel model = new TestModel();
 		model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
 		int numElements = (int)Math.pow(2, getTestModelDepth());
 		model.setElementChildren(TreePath.EMPTY, TestModel.makeSingleLevelModelElements(model, numElements, "model.")); //$NON-NLS-1$

 		fViewer.setAutoExpandLevel(-1);

 		// Create the listener
 		fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

 		fViewer.addFilter(new ViewerFilter() {
 			@Override
 			public boolean select(Viewer viewer, Object parentElement, Object element) {
 				if (element instanceof TestElement) {
 					String id = ((TestElement)element).getID();
 					if (id.startsWith("model.")) { //$NON-NLS-1$
 						id = id.substring("model.".length()); //$NON-NLS-1$
 					}
 					if (id.length() >= 2 && (id.charAt(1) == '1' || id.charAt(1) == '3' || id.charAt(1) == '5' || id.charAt(1) == '7' || id.charAt(1) == '9')) {
 						return false;
 					}
 				}
 				return true;
 			}
 		});

 		// Set the input into the view and update the view.
 		fViewer.setInput(model.getRootElement());
 		waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
 		model.validateData(fViewer, TreePath.EMPTY);

 		Performance perf = Performance.getDefault();
 		PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
 		try {
 			for (int i = 0; i < 100; i++) {
 				// Update the model
 				model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

 				TestElement element = model.getRootElement();
 				fListener.reset(TreePath.EMPTY, element, -1, false, false);

 				meter.start();
 				model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
 				waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE | MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
 				meter.stop();
 				System.gc();
 			}

 			meter.commit();
 			perf.assertPerformance(meter);
 		} finally {
 			meter.dispose();
 		}
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2009, 2013 Wind River Systems and others.
	*
	* 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:
	* Wind River Systems - initial API and implementation
	* IBM Corporation - bug fixing
	*******************************************************************************/
	package org.eclipse.debug.tests.viewer.model;

	import org.eclipse.debug.internal.ui.viewers.model.IInternalTreeModelViewer;
	import org.eclipse.debug.internal.ui.viewers.model.provisional.IModelDelta;
	import org.eclipse.debug.internal.ui.viewers.model.provisional.ModelDelta;
	import org.eclipse.debug.tests.viewer.model.TestModel.TestElement;
	import org.eclipse.jface.viewers.TreePath;
	import org.eclipse.jface.viewers.TreeSelection;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.viewers.ViewerFilter;
	import org.eclipse.test.performance.Performance;
	import org.eclipse.test.performance.PerformanceMeter;
	import org.junit.Before;
	import org.junit.Test;

	/**
	* Tests to measure the performance of the viewer updates.
	*/
	abstract public class PerformanceTests extends AbstractViewerModelTest implements ITestModelUpdatesListenerConstants {

	protected VisibleVirtualItemValidator fVirtualItemValidator;

	public String getDefaultScenarioId() {
	return this.getClass().getName() + '#' + name.getMethodName() + "()"; //$NON-NLS-1$
	}

	@Override
	protected TestModelUpdatesListener createListener(IInternalTreeModelViewer viewer) {
	return new TestModelUpdatesListener(viewer, false, false);
	}

	@Override
	@Before
	public void setUp() throws Exception {
	super.setUp();
	fVirtualItemValidator = new VisibleVirtualItemValidator(0, Integer.MAX_VALUE);
	}

	/**
	* Depth (size) of the test model to be used in the tests. This number allows
	* the jface based tests to use a small enough model to fit on the screen, and
	* for the virtual viewer to exercise the content provider to a greater extent.
	*/
	abstract protected int getTestModelDepth();

	@Test
	public void testRefreshStruct() throws Exception {
	TestModel model = new TestModel();
	model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
	model.setElementChildren(TreePath.EMPTY, TestModel.makeMultiLevelElements(model, getTestModelDepth(), "model.")); //$NON-NLS-1$

	fViewer.setAutoExpandLevel(-1);

	// Create the listener
	fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

	// Set the input into the view and update the view.
	fViewer.setInput(model.getRootElement());
	waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
	model.validateData(fViewer, TreePath.EMPTY);

	Performance perf = Performance.getDefault();
	PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
	try {
	for (int i = 0; i < 10; i++) {
	// Update the model
	model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

	TestElement element = model.getRootElement();
	fListener.reset(TreePath.EMPTY, element, -1, false, false);

	meter.start();
	model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
	waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE \| MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
	meter.stop();
	System.gc();
	}

	meter.commit();
	perf.assertPerformance(meter);
	} finally {
	meter.dispose();
	}
	}

	@Test
	public void testRefreshStruct2() throws Exception {
	TestModel model = new TestModel();
	model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
	model.setElementChildren(TreePath.EMPTY, TestModel.makeMultiLevelElements2(model, new int[] { 2, 3000, 1 }, "model.")); //$NON-NLS-1$

	fViewer.setAutoExpandLevel(2);
	// Create the listener
	//fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, false, false);
	fListener.reset();

	// Set the input into the view and update the view.
	fViewer.setInput(model.getRootElement());
	waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE), createListenerErrorMessage());

	fVirtualItemValidator.setVisibleRange(0, 50);

	Performance perf = Performance.getDefault();
	PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
	try {
	for (int i = 0; i < 100; i++) {
	// Update the model
	model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

	TestElement element = model.getRootElement();
	//fListener.reset(TreePath.EMPTY, element, -1, false, false);
	fListener.reset();

	meter.start();
	model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
	waitWhile(t -> !fListener.isFinished(MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
	model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
	waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE \| MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
	meter.stop();
	System.gc();
	}

	meter.commit();
	perf.assertPerformance(meter);
	} finally {
	meter.dispose();
	}
	}

	@Test
	public void testRefreshStructReplaceElements() throws Exception {
	TestModel model = new TestModel();
	model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
	model.setElementChildren(TreePath.EMPTY, TestModel.makeMultiLevelElements(model, getTestModelDepth(), "model.")); //$NON-NLS-1$

	fViewer.setAutoExpandLevel(-1);

	// Create the listener
	fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

	// Set the input into the view and update the view.
	fViewer.setInput(model.getRootElement());
	waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
	model.validateData(fViewer, TreePath.EMPTY);

	Performance perf = Performance.getDefault();
	PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
	try {
	for (int i = 0; i < 100; i++) {
	// Update the model
	model.setElementChildren(TreePath.EMPTY, TestModel.makeMultiLevelElements(model, getTestModelDepth(), "pass " + i + ".")); //$NON-NLS-1$ //$NON-NLS-2$

	TestElement element = model.getRootElement();
	fListener.reset(TreePath.EMPTY, element, -1, false, false);

	meter.start();
	model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
	waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE \| MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
	meter.stop();
	System.gc();
	}

	meter.commit();
	perf.assertPerformance(meter);
	} finally {
	meter.dispose();
	}
	}

	@Test
	public void testRefreshList() throws Exception {
	TestModel model = new TestModel();
	model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
	int numElements = (int)Math.pow(2, getTestModelDepth());
	model.setElementChildren(TreePath.EMPTY, TestModel.makeSingleLevelModelElements(model, numElements, "model.")); //$NON-NLS-1$

	fViewer.setAutoExpandLevel(-1);

	// Create the listener
	fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

	// Set the input into the view and update the view.
	fViewer.setInput(model.getRootElement());
	waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
	model.validateData(fViewer, TreePath.EMPTY);

	Performance perf = Performance.getDefault();
	PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
	try {
	for (int i = 0; i < 100; i++) {
	// Update the model
	model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

	TestElement element = model.getRootElement();
	fListener.reset(TreePath.EMPTY, element, -1, false, false);

	meter.start();
	model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
	waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE \| MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
	meter.stop();
	System.gc();
	}

	meter.commit();
	perf.assertPerformance(meter);
	} finally {
	meter.dispose();
	}
	}

	@Test
	public void testSaveAndRestore() throws Exception {
	//TreeModelViewerAutopopulateAgent autopopulateAgent = new TreeModelViewerAutopopulateAgent(fViewer);
	TestModel model = TestModel.simpleMultiLevel();

	// expand all elements
	fViewer.setAutoExpandLevel(-1);

	// Create the listener, only check the first level
	fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

	// Set the input into the view and update the view.
	fViewer.setInput(model.getRootElement());
	waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
	model.validateData(fViewer, TreePath.EMPTY);

	// Set a selection in view
	fViewer.setSelection(new TreeSelection(model.findElement("3.2.3"))); //$NON-NLS-1$

	// Turn off the auto-expand now since we want to text the auto-expand logic
	fViewer.setAutoExpandLevel(-1);

	Performance perf = Performance.getDefault();
	PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
	try {
	for (int i = 0; i < 100; i++) {
	// Update the model
	model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

	// Set the viewer input to null. This will trigger the view to save the viewer state.
	fListener.reset(true, false);

	meter.start();
	fViewer.setInput(null);
	waitWhile(t -> !fListener.isFinished(STATE_SAVE_COMPLETE), createListenerErrorMessage());

	// Set the viewer input back to the model. When view updates are complete
	// the viewer
	// Note: disable redundant updates because the reveal delta triggers one.
	fListener.reset(TreePath.EMPTY, model.getRootElement(), 1, false, false);
	// TODO: add state updates somehow?
	fViewer.setInput(model.getRootElement());
	waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE \| STATE_RESTORE_COMPLETE), createListenerErrorMessage());
	meter.stop();
	System.gc();
	}

	meter.commit();
	perf.assertPerformance(meter);
	} finally {
	meter.dispose();
	}

	}

	@Test
	public void testRefreshListFiltered() throws Exception {
	TestModel model = new TestModel();
	model.setRoot(new TestElement(model, "root", new TestElement[0])); //$NON-NLS-1$
	int numElements = (int)Math.pow(2, getTestModelDepth());
	model.setElementChildren(TreePath.EMPTY, TestModel.makeSingleLevelModelElements(model, numElements, "model.")); //$NON-NLS-1$

	fViewer.setAutoExpandLevel(-1);

	// Create the listener
	fListener.reset(TreePath.EMPTY, model.getRootElement(), -1, true, false);

	fViewer.addFilter(new ViewerFilter() {
	@Override
	public boolean select(Viewer viewer, Object parentElement, Object element) {
	if (element instanceof TestElement) {
	String id = ((TestElement)element).getID();
	if (id.startsWith("model.")) { //$NON-NLS-1$
	id = id.substring("model.".length()); //$NON-NLS-1$
	}
	if (id.length() >= 2 && (id.charAt(1) == '1' \|\| id.charAt(1) == '3' \|\| id.charAt(1) == '5' \|\| id.charAt(1) == '7' \|\| id.charAt(1) == '9')) {
	return false;
	}
	}
	return true;
	}
	});

	// Set the input into the view and update the view.
	fViewer.setInput(model.getRootElement());
	waitWhile(t -> !fListener.isFinished(), createListenerErrorMessage());
	model.validateData(fViewer, TreePath.EMPTY);

	Performance perf = Performance.getDefault();
	PerformanceMeter meter = perf.createPerformanceMeter(getDefaultScenarioId());
	try {
	for (int i = 0; i < 100; i++) {
	// Update the model
	model.setAllAppendix(" - pass " + i); //$NON-NLS-1$

	TestElement element = model.getRootElement();
	fListener.reset(TreePath.EMPTY, element, -1, false, false);

	meter.start();
	model.postDelta(new ModelDelta(element, IModelDelta.CONTENT));
	waitWhile(t -> !fListener.isFinished(ALL_UPDATES_COMPLETE \| MODEL_CHANGED_COMPLETE), createListenerErrorMessage());
	meter.stop();
	System.gc();
	}

	meter.commit();
	perf.assertPerformance(meter);
	} finally {
	meter.dispose();
	}
	}

	}