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VTDecoderXPCService sucking up 25-30% of CPU

Anyone else seeing this in your Activity Monitor?


VTDecoderXPCService is running a full 25-30% of my CPU's on quadcore i7 iMac with 8GB RAM.


I have no apps running, yet the service is running like crazy..... any solutions?

Posted on Jul 20, 2011 9:30 PM

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Posted on Jul 25, 2011 2:30 PM

OK... I finally discovered the source of the problem.


VTDecoderXPCService is the sandboxing for video content in Lion. All things that are QuickTime related, audio or video, are sandboxed by this service. It just clicked as to what it is. We have iCam for our iPhones. It allows us to remotely view from the webcams on our machines. So... because iCamSource is a QuickTime-related service, VTDecoderXPCService takes over. So when iCam is operating, it's sucking up 25% of the CPU. Which I'm going to report to the developer. :-)

37 replies

VTDecoderXPCService sucking up 25-30% of CPU

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