SS4 CPU VTDecoderXPCService

captainkrunch
captainkrunch
edited June 2016 in SecuritySpy
I noticed that cpu on the SS4 process is indeed reduced by nearly 50% on my setup. However, I see a new process VTDecoderXPCService running when SS4 runs. I don't recall seeing this service with SS3.X. VTDecoderXPCService is consuming about same cpu as SS4. I am running 5 Foscam cameras MPEG-4 HTTP on OS X 10.11.5 El Capitan 64-bit. No video capture or motion detection enabled. Is the VTDecoderXPCService expected normal behavior?

Comments

  • Ben
    Ben
    Yes, this is expected behaviour. Previously, SecuritySpy used QuickTime for video decompression; now is uses the more modern and efficient "Video Toolbox" API. Video Toolbox spawns these additional processes to do the actual work.
  • guykuo
    guykuo
    Overall CPU usage is definitely down in SS4. My iMac 4 core i7 had only 30% idle handling 11 cameras (with all of them visible on screen, 8FPS except one at 6FPS) under SS 3.04.11b4. Under SS 4.01, system now has 40% cpu idle with all cameras at 6FPS.

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