Attachment #64166 for bug #161175




	}
}

/*
 * Performance test for the first use of findType(...)
 * (see bug 161175 JarPackageFragmentRoot slow to initialize)
 */
public void testFindType() throws CoreException {
	// get 20 projects
	IJavaModel model = JavaCore.create(ResourcesPlugin.getWorkspace().getRoot());
	IJavaProject[] allProjects = model.getJavaProjects();
	int max = 20;
	IJavaProject[] projects = new IJavaProject[max];
	int index = 0;
	for (int i = 0, length = allProjects.length; i < length; i++) {
		if (allProjects[i].getElementName().startsWith("org.eclipse")) {
			projects[index++] = allProjects[i];
			if (index == max)
				break;
		}
	}
	
	// warm up
	for (int i = 0; i < 5; i++) {
		model.close();
		for (int j = 0; j < max; j++) {
			projects[j].findType("java.lang.Object");
		}
	}
		
	// measure performance
	for (int i = 0; i < 10; i++) {
		model.close();
		runGc();
		startMeasuring();
		for (int j = 0; j < max; j++) {
			projects[j].findType("java.lang.Object");
		}
		stopMeasuring();
	}

	commitMeasurements();
	assertPerformance();
}

public void testStartJDTPlugin() throws JavaModelException {
	// store current settings
	long oldSnapInterval = ENV.getWorkspace().getDescription().getSnapshotInterval();	

Lines 206-218 Link Here

(-)model/org/eclipse/jdt/internal/core/JavaProjectElementInfo.java (-1 / +11 lines)
206	roots = new IPackageFragmentRoot[0];	206	roots = new IPackageFragmentRoot[0];
207	reverseMap.clear();	207	reverseMap.clear();
208	}	208	}
		209
		210	DeltaProcessingState deltaState = JavaModelManager.getJavaModelManager().deltaState;
		211	HashMap otherRoots = deltaState.oldOtherRoots;
		212	if (otherRoots == null) {
		213	deltaState.initializeRoots();
		214	otherRoots = deltaState.otherRoots;
		215	}
		216
209	HashtableOfArrayToObject fragmentsCache = new HashtableOfArrayToObject();	217	HashtableOfArrayToObject fragmentsCache = new HashtableOfArrayToObject();
210	HashtableOfArrayToObject isPackageCache = new HashtableOfArrayToObject();	218	HashtableOfArrayToObject isPackageCache = new HashtableOfArrayToObject();
211	for (int i = 0, length = roots.length; i < length; i++) {	219	for (int i = 0, length = roots.length; i < length; i++) {
212	IPackageFragmentRoot root = roots[i];	220	IPackageFragmentRoot root = roots[i];
213	IJavaElement[] frags = null;	221	IJavaElement[] frags = null;
214	try {	222	try {
215	if (root.isArchive() && !root.isOpen()) {	223	if (root.isArchive()
		224	&& !root.isOpen()
		225	&& otherRoots.get(((JarPackageFragmentRoot) root).jarPath) == null/only if jar belongs to 1 project (https://bugs.eclipse.org/bugs/show_bug.cgi?id=161175)/) {
216	JarPackageFragmentRootInfo info = new JarPackageFragmentRootInfo();	226	JarPackageFragmentRootInfo info = new JarPackageFragmentRootInfo();
217	((JarPackageFragmentRoot) root).computeChildren(info, new HashMap());	227	((JarPackageFragmentRoot) root).computeChildren(info, new HashMap());
218	frags = info.children;	228	frags = info.children;

Return to bug 161175

Lines 854-859 Link Here

(-)src/org/eclipse/jdt/core/tests/performance/FullSourceWorkspaceModelTests.java (+42 lines)
854	}	854	}
855	}	855	}
856		856
		857	/*
		858	* Performance test for the first use of findType(...)
		859	* (see bug 161175 JarPackageFragmentRoot slow to initialize)
		860	*/
		861	public void testFindType() throws CoreException {
		862	// get 20 projects
		863	IJavaModel model = JavaCore.create(ResourcesPlugin.getWorkspace().getRoot());
		864	IJavaProject[] allProjects = model.getJavaProjects();
		865	int max = 20;
		866	IJavaProject[] projects = new IJavaProject[max];
		867	int index = 0;
		868	for (int i = 0, length = allProjects.length; i < length; i++) {
		869	if (allProjects[i].getElementName().startsWith("org.eclipse")) {
		870	projects[index++] = allProjects[i];
		871	if (index == max)
		872	break;
		873	}
		874	}
		875
		876	// warm up
		877	for (int i = 0; i < 5; i++) {
		878	model.close();
		879	for (int j = 0; j < max; j++) {
		880	projects[j].findType("java.lang.Object");
		881	}
		882	}
		883
		884	// measure performance
		885	for (int i = 0; i < 10; i++) {
		886	model.close();
		887	runGc();
		888	startMeasuring();
		889	for (int j = 0; j < max; j++) {
		890	projects[j].findType("java.lang.Object");
		891	}
		892	stopMeasuring();
		893	}
		894
		895	commitMeasurements();
		896	assertPerformance();
		897	}
		898
857	public void testStartJDTPlugin() throws JavaModelException {	899	public void testStartJDTPlugin() throws JavaModelException {
858	// store current settings	900	// store current settings
859	long oldSnapInterval = ENV.getWorkspace().getDescription().getSnapshotInterval();	901	long oldSnapInterval = ENV.getWorkspace().getDescription().getSnapshotInterval();