Re: -validateMenuItem: like crazy, hogs CPU for 1st minute
Re: -validateMenuItem: like crazy, hogs CPU for 1st minute
- Subject: Re: -validateMenuItem: like crazy, hogs CPU for 1st minute
- From: Eric Schlegel <email@hidden>
- Date: Fri, 19 Mar 2010 12:28:48 -0700
It looks to me that some other process on your system is using the Accessibility API to inspect your menu structure. That's the "_XCopyAttributeValue" and subsequent callstack in your first sampler output.
Do you have Accessibility enabled? What happens if you disable it?
-eric
On Mar 19, 2010, at 12:10 PM, Jerry Krinock wrote:
> I just realized I should have included the Sampler output. Here it is. You see after the 1643 samples of MenuData::GetNamedAccessibleAttributeSelf, it breaks into two branches, both of which end up in -validateMenuItem:
>
> Analysis of sampling pid 25997 every 1 millisecond
> 1691 Thread_798599 DispatchQueue_1: com.apple.main-thread (serial)
> 1691 start
> 1691 main
> 1691 NSApplicationMain
> 1691 -[NSApplication run]
> 1665 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
> 1664 _DPSNextEvent
> 1663 BlockUntilNextEventMatchingListInMode
> 1663 ReceiveNextEventCommon
> 1660 RunCurrentEventLoopInMode
> 1660 CFRunLoopRunInMode
> 1660 CFRunLoopRunSpecific
> 1660 __CFRunLoopRun
> 1643 mshMIGPerform
> 1643 _XCopyAttributeValue
> 1643 _AXXMIGCopyAttributeValue
> 1643 CopyAttributeValue
> 1643 CopyCarbonUIElementAttributeValue
> 1643 CarbonCopyAttributeValueCallback(__CFData const*, unsigned long, __CFString const*, void const**, void*)
> 1643 HLTBCopyUIElementAttributeValue
> 1643 Accessible::GetNamedAttributeData(__CFString const*, void const*, void const**, unsigned char*)
> 1643 Accessible::SendEvent(OpaqueEventRef*, bool) const
> 1643 SendEventToEventTargetWithOptions
> 1643 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*)
> 1643 DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*)
> 1643 HIObject::EventHook(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*)
> 1643 HIObject::HandleClassAccessibilityEvent(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*)
> 1643 HIObject::DispatchAccessibilityEvent(OpaqueEventRef*, unsigned long long, AccessibilityHandlers const*, void*)
> 1643 MenuData::GetNamedAccessibleAttributeSelf(unsigned long long, __CFString const*, unsigned long, OpaqueEventRef*)
>
> 876 HLTBCopyUIElementAttributeValue
> 876 Accessible::GetNamedAttributeData(__CFString const*, void const*, void const**, unsigned char*)
> 876 Accessible::SendEvent(OpaqueEventRef*, bool) const
> 876 SendEventToEventTargetWithOptions
> 876 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*)
> 876 DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*)
> 876 MenuData::MenuContentViewAccessibilityHandler(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*)
> 876 HIObject::DispatchAccessibilityEvent(OpaqueEventRef*, unsigned long long, AccessibilityHandlers const*, void*)
> 876 MenuData::ContentViewGetNamedAccessibleAttribute(unsigned long long, __CFString const*, unsigned long, OpaqueEventRef*, void*)
> 876 MenuData::HandleGetNamedAccessibleAttribute(unsigned long long, __CFString const*, unsigned long, OpaqueEventRef*)
> 876 OpenMenuForInspection(MenuData*)
> 876 _SimulateMenuOpening
> 876 SendMenuOpening(MenuSelectData*, MenuData*, double, unsigned long, __CFDictionary*, unsigned char, unsigned char*)
> 876 SendEventToEventTarget
> 876 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*)
> 876 DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*)
> 876 HIApplication::EventHandler(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*)
> 876 UpdateHICommandStatusWithCachedEvent
> 876 SendHICommandEvent(unsigned long, HICommand const*, unsigned long, unsigned long, unsigned char, void const*, OpaqueEventTargetRef*, OpaqueEventTargetRef*, OpaqueEventRef**)
> 875 SendEventToEventTarget
> 875 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*)
> 875 DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*)
> 875 NSSLMMenuEventHandler
> 861 -[NSCarbonMenuImpl _carbonUpdateStatusEvent:handlerCallRef:]
> 861 -[NSMenu _enableItem:]
> 861 -[BkmxAppDel(Actions) validateMenuItem:]
>
>
> 767 MenuData::HandleGetNamedAccessibleAttribute(unsigned long long, __CFString const*, unsigned long, OpaqueEventRef*)
> 767 OpenMenuForInspection(MenuData*)
> 767 _SimulateMenuOpening
> 767 SendMenuOpening(MenuSelectData*, MenuData*, double, unsigned long, __CFDictionary*, unsigned char, unsigned char*)
> 767 SendEventToEventTarget
> 767 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*)
> 767 DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*)
> 767 HIApplication::EventHandler(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*)
> 767 UpdateHICommandStatusWithCachedEvent
> 767 SendHICommandEvent(unsigned long, HICommand const*, unsigned long, unsigned long, unsigned char, void const*, OpaqueEventTargetRef*, OpaqueEventTargetRef*, OpaqueEventRef**)
> 767 SendEventToEventTarget
> 767 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*)
> 767 DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*)
> 767 NSSLMMenuEventHandler
> 747 -[NSCarbonMenuImpl _carbonUpdateStatusEvent:handlerCallRef:]
> 747 -[NSMenu _enableItem:]
> 747 -[BkmxAppDel(Actions) validateMenuItem:]
>
>
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