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I'm not sure when this started (I saw on 3.1M3) but there is a huge performance problem with typing in a large xml file (1M), something blocks the UI thread and the workbench appears hung. Just type anywhere and the UI gets stuck. When I pause the VM, it seems like this is where most of the time is spent on the main thread: GenericPositionManager.removePosition(String, Position) line: 347 JobSafeStructuredDocument(BasicStructuredDocument).removePosition(String, Position) line: 2130 DefaultPartitioner.documentChanged2(DocumentEvent) line: 338 DefaultPartitioner.documentChanged(DocumentEvent) line: 202 JobSafeStructuredDocument(BasicStructuredDocument)._fireDocumentChanged(Object[], StructuredDocumentEvent) line: 403 JobSafeStructuredDocument(BasicStructuredDocument).fireStructuredDocumentEvent(RegionChangedEvent) line: 1176 JobSafeStructuredDocument(BasicStructuredDocument).internalReplaceText(Object, int, int, String, boolean) line: 1836 JobSafeStructuredDocument(BasicStructuredDocument).replaceText(Object, int, int, String, boolean) line: 2236 JobSafeStructuredDocument.access$0(JobSafeStructuredDocument, Object, int, int, String, boolean) line: 1 JobSafeStructuredDocument$1.run() line: 100 EditorExecutionContext.execute(Runnable) line: 43 JobSafeStructuredDocument.replaceText(Object, int, int, String, boolean) line: 110 JobSafeStructuredDocument(BasicStructuredDocument).replaceText(Object, int, int, String) line: 2232 StructuredDocumentToTextAdapter.replaceTextRange(int, int, String) line: 1118 StyledText.modifyContent(Event, boolean) line: 5608 StyledText.sendKeyEvent(Event) line: 6448 StyledText.doContent(char) line: 2537 StyledText.handleKey(Event) line: 4980 StyledText.handleKeyDown(Event) line: 5003 StyledText$7.handleEvent(Event) line: 4748 EventTable.sendEvent(Event) line: 82 StyledText(Widget).sendEvent(Event) line: 800 StyledText(Widget).sendEvent(int, Event, boolean) line: 824 StyledText(Widget).sendEvent(int, Event) line: 809 StyledText(Widget).sendKeyEvent(int, int, int, int, Event) line: 837 StyledText(Widget).sendKeyEvent(int, int, int, int) line: 833 StyledText(Widget).wmChar(int, int, int) line: 1096 StyledText(Control).WM_CHAR(int, int) line: 3077 StyledText(Control).windowProc(int, int, int, int) line: 2987 Display.windowProc(int, int, int, int) line: 3361 OS.DispatchMessageW(MSG) line: not available [native method] OS.DispatchMessage(MSG) line: 1502 Display.readAndDispatch() line: 2446 Workbench.runEventLoop(Window$IExceptionHandler, Display) line: 1529 Workbench.runUI() line: 1500 Workbench.createAndRunWorkbench(Display, WorkbenchAdvisor) line: 276 PlatformUI.createAndRunWorkbench(Display, WorkbenchAdvisor) line: 144 IDEApplication.run(Object) line: 102 PlatformActivator$1.run(Object) line: 335 EclipseStarter.run(Object) line: 273 EclipseStarter.run(String[], Runnable) line: 129 NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method] NativeMethodAccessorImpl.invoke(Object, Object[]) line: 85 NativeMethodAccessorImpl.invoke(Method, Object, Object[]) line: 58 DelegatingMethodAccessorImpl.invoke(Method, Object, Object[]) line: 60 Method.invoke(Object, Object[]) line: 391 Main.basicRun(String[]) line: 185 Main.run(String[]) line: 704 Main.main(String[]) line: 688 I don't know off the bat why we get stuck here Need more investigation. I can also supply a test file if necessary.
I have the same problem all the time. The systems hangs and I need to kill eclipse. My xml file is ~900kb. I could send it as a test case.
Not sure why I haven't seen this bug report till now! Panagiotis, a test file would be helpful. Even more helpful would be a JUnit test, using the performance monitor, etc. (Should be some exisiting examples in our "..performance.tests" plugins.)
Created attachment 19474 [details] the zipped test file.
I tested again today with Eclipse 3.1 I20050401-1645 on windows with WTP M3 installed. I can't reproduce the problem anymore.
Well, if you don't see any more, I'll lower priority, but will leave open for now because I hope we can still incorporate it in some test cases. Is interesting because it not only has lots of elements, but lots of character enties and in past, we sometimes have had worse performance with that time of file. Thanks.
Changing to 'enhancement' to better reflect its current status, of wanting to create JUnit performance tests using a specific file.
Hi, everyone. Would someone comment on the status of this bug? Is the enhancement going to be useful for the stable builds in the very near future? Peter.
This might be fixed with the latest changed that have gone in to the XML editors. I'll see if I can replicate the issue.
I think this one can be closed now. I experienced no slow downs, or long pauses while typing. Content assistance can back within a reasonable amount of time as well.
(In reply to comment #9) > I think this one can be closed now. I experienced no slow downs, or long > pauses while typing. Content assistance can back within a reasonable amount of > time as well. I second that motion.
Resolving based on comments and observation.
