求教，这两个线程CPU占用率很高。是什么原因？

hawkgao

hawkgao

这里是文字版本，
占用率 20%的线程
ntoskrnl.exe!SeAccessCheckWithHint+0xb4a
ntoskrnl.exe!IoGetRequestorProcess+0x250
ntoskrnl.exe!ExfTryToWakePushLock+0x899
ntoskrnl.exe!KeStackAttachProcess+0x117f
ntoskrnl.exe!ObReferenceObjectByPointerWithTag+0x23b
osg97-osg.dll!?computeBound@Group@osg@@UBE?AV?$BoundingSphereImpl@VVec3f@osg@@@2@XZ+0x194
osg97-osg.dll!?computeBound@Group@osg@@UBE?AV?$BoundingSphereImpl@VVec3f@osg@@@2@XZ+0xc8
osg97-osg.dll!?getBound@Node@osg@@QBEABV?$BoundingSphereImpl@VVec3f@osg@@@2@XZ+0x54
osg97-osgViewer.dll!?renderingTraversals@ViewerBase@osgViewer@@UAEXXZ+0xb14
osg97-osgViewer.dll!?frame@ViewerBase@osgViewer@@UAEXN@Z+0x60
DigitalEarth.exe!COSGObject::Render+0x48
MSVCR100.dll!_endthread+0x48
MSVCR100.dll!_endthread+0xe8
kernel32.dll!BaseThreadInitThunk+0x12
ntdll.dll!RtlInitializeExceptionChain+0x63
ntdll.dll!RtlInitializeExceptionChain+0x36

占用率 15%的线程
ntoskrnl.exe!SeAccessCheckWithHint+0xb4a
ntoskrnl.exe!KeAcquireSpinLockAtDpcLevel+0x682
ntoskrnl.exe!KeWaitForMutexObject+0x19f
wow64cpu.dll!TurboDispatchJumpAddressEnd+0x690
wow64cpu.dll!TurboDispatchJumpAddressEnd+0x484
wow64.dll!Wow64SystemServiceEx+0x1ce
wow64.dll!Wow64LdrpInitialize+0x429
ntdll.dll!LdrGetProcedureAddress+0x24117
ntdll.dll!LdrInitializeThunk+0xe
ntdll.dll!NtWaitForSingleObject+0x15
ntdll.dll!RtlIntegerToUnicodeString+0x20b
ot12-OpenThreads.dll!?lock@Mutex@OpenThreads@@UAEHXZ+0xa
ot12-OpenThreads.dll!?wait@Condition@OpenThreads@@UAEHPAVMutex@2@@Z+0x11
osg97-osgViewer.dll!?takeFront@ThreadSafeQueue@Renderer@osgViewer@@QAEPAVSceneView@osgUtil@@XZ+0x4c
osg97-osgViewer.dll!?draw@Renderer@osgViewer@@UAEXXZ+0x7d
osg97-osgViewer.dll!??RRenderer@osgViewer@@UAEXPAVGraphicsContext@osg@@@Z+0x15
osg97-osg.dll!??RRunOperations@osg@@UAEXPAVGraphicsContext@1@@Z+0xd
osg97-osg.dll!??RGraphicsOperation@osg@@UAEXPAVObject@1@@Z+0x2e
osg97-osg.dll!?run@OperationThread@osg@@UAEXXZ+0x1f2
osg97-osg.dll!?run@GraphicsThread@osg@@UAEXXZ+0x4b
MSVCR100.dll!_endthreadex+0x3a
MSVCR100.dll!_endthreadex+0xe4
kernel32.dll!BaseThreadInitThunk+0x12
ntdll.dll!RtlInitializeExceptionChain+0x63
ntdll.dll!RtlInitializeExceptionChain+0x36

array

我无法猜测什么