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Re: 2.3.2_rc1

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Re: 2.3.2_rc1

Subject: Re: 2.3.2_rc1
From: Robert Tillyard <email@hidden>
Date: Thu, 20 Nov 2008 11:40:24 +0000

I have a strange issue where X11 uses >95% CPU if the X11 window is completely obscured by a Cocoa window and X11 is not the front-most app, if I bring X11 to the front CPU usage drops to < 2%.

Sample while using high CPU below:

Regards, Rob.

Sampling process 7672 for 3 seconds with 1 millisecond of run time between samples Sampling completed, processing symbols... Analysis of sampling X11 (pid 7672) every 1 millisecond Call graph: 2071 Thread_2503 2071 start 2071 main 2071 mach_msg_server 2071 mach_startup_server 2071 _Xstart_x11_server 2071 do_start_x11_server 2071 server_main 2071 X11ApplicationMain 2071 -[NSApplication run] 2071 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] 2071 _DPSNextEvent 2070 BlockUntilNextEventMatchingListInMode 2070 ReceiveNextEventCommon 2070 RunCurrentEventLoopInMode 2070 CFRunLoopRunInMode 2069 CFRunLoopRunSpecific 2061 mach_msg 2061 mach_msg_trap 2061 mach_msg_trap 6 0xffffffff 6 _sigtramp 6 _sigtramp 1 __CFMachPortPerform 1 PullEventsFromWindowServerOnConnection(unsigned int, unsigned char) 1 CGEventCreateNextEvent 1 CGSGetNextEventRecordInternal 1 snarfEvents 1 _CGSGetPortStreamInline 1 mach_msg 1 mach_msg_trap 1 mach_msg_trap 1 __bzero 1 __bzero 1 spin_lock 1 spin_lock 1 SendEventToEventTarget 1 SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*, HandlerCallRec*) 1 DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*) 1 ToolboxEventDispatcherHandler(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*) 1 FindWindowAndPartFromMouseEvent 1 FindWindow 1 FindWindowOfClass 1 FindWindowCommon(Point, OpaqueWindowPtr**, short*) 1 FindPlatformWindow 1 CGSFindWindowAndOwner 1 _CGSFindWindow 1 mach_msg 1 mach_msg_trap 1 mach_msg_trap 2071 Thread_2603 2071 thread_start 2071 _pthread_start 2071 CAPThread::Entry(CAPThread*) 2071 HALRunLoop::OwnThread(void*) 2071 CFRunLoopRunInMode 2071 CFRunLoopRunSpecific 2071 mach_msg 2071 mach_msg_trap 2071 mach_msg_trap 2071 Thread_2703 2071 thread_start 2071 _pthread_start 2071 server_thread 2071 dix_main 2071 Dispatch 1899 select$DARWIN_EXTSN 1899 select$DARWIN_EXTSN 164 WaitForSomething 91 BlockHandler 63 QuartzBlockHandler 40 NSPopAutoreleasePool 23 NSPopAutoreleasePool 5 NSClassFromObject 4 NSClassFromObject 1 object_getClass 1 object_getClass 4 object_getClass 4 object_getClass 3 objc_assign_strongCast 3 objc_assign_strongCast 3 objc_msgSend 3 objc_msgSend 2 objc_collecting_enabled 2 objc_collecting_enabled 8 -[NSAutoreleasePool init] 7 -[NSAutoreleasePool initWithCapacity:] 3 -[NSAutoreleasePool initWithCapacity:] 3 NSPushAutoreleasePool 2 NSPushAutoreleasePool 1 objc_assign_strongCast 1 objc_assign_strongCast 1 objc_collecting_enabled 1 objc_collecting_enabled 1 -[NSAutoreleasePool init] 5 objc_msgSend 5 objc_msgSend 4 +[NSObject alloc] 3 +[NSObject alloc] 1 dyld_stub_objc_assign_strongCast 1 dyld_stub_objc_assign_strongCast 4 objc_collecting_enabled 4 objc_collecting_enabled 2 QuartzBlockHandler 16 AnimCurScreenBlockHandler 10 AnimCurScreenBlockHandler 6 miSpriteBlockHandler 6 miSpriteBlockHandler 10 objc_msgSend 10 objc_msgSend 1 BlockHandler 1 RootlessBlockHandler 1 RootlessBlockHandler 29 GetTimeInMillis 21 gettimeofday 19 __gettimeofday 11 __nanotime 11 __nanotime 8 __gettimeofday 2 gettimeofday 6 GetTimeInMillis 2 __commpage_gettimeofday 2 __commpage_gettimeofday 19 WaitForSomething 17 WakeupHandler 12 WakeupHandler 3 RootlessWakeupHandler 3 RootlessWakeupHandler 2 QuartzWakeupHandler 2 QuartzWakeupHandler 6 __bzero 6 __bzero 1 __error 1 __error 1 select$DARWIN_EXTSN 1 select$DARWIN_EXTSN 6 Dispatch 2 __error 2 __error 2071 Thread_2803 2071 thread_start 2071 _pthread_start 2071 glvmDoWork 2071 pthread_cond_wait$UNIX2003 2071 __semwait_signal 2071 __semwait_signal 2071 Thread_2903 2071 thread_start 2071 _pthread_start 2071 DarwinProcessFDAdditionQueue_thread 2071 pthread_cond_wait$UNIX2003 2071 __semwait_signal 2071 __semwait_signal 2071 Thread_2a03 2071 thread_start 2071 _pthread_start 2071 select$DARWIN_EXTSN 2071 select$DARWIN_EXTSN 2071 Thread_2b03 2071 thread_start 2071 _pthread_start 2071 _xp_async_thread 2071 _xp_async_dequeue 2071 pthread_cond_wait$UNIX2003 2071 __semwait_signal 2071 __semwait_signal

Total number in stack (recursive counted multiple, when >=5):
        6       _pthread_start
        6       thread_start

Sort by top of stack, same collapsed (when >= 5):
        __semwait_signal        6213
        mach_msg_trap        4134
        select$DARWIN_EXTSN        3971
        NSPopAutoreleasePool        23
        WaitForSomething        19
        objc_msgSend        18
        WakeupHandler        12
        __nanotime        11
        AnimCurScreenBlockHandler        10
        __gettimeofday        8
        __bzero        7
        objc_collecting_enabled        7
        Dispatch        6
        GetTimeInMillis        6
        _sigtramp        6
        miSpriteBlockHandler        6
        object_getClass        5
Sample analysis of process 7672 written to file /dev/stdout

On 17 Nov 2008, at 05:59, Jeremy Huddleston wrote:

Hi all,
I'd like to thank everyone that helped out and tested through the three beta releases of 2.3.2 over the past month and a half. I think 2.3.2_rc1 is in pretty good shape and is now ready for a wider audience.

...
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