Why xvimagesink uses more cpu than ximagesink in this case?

[Yogesh Marwaha]

Hi,

Just consider these simple pipelines:-

gst-launch -v audiotestsrc ! goom ! ffmpegcolorspace ! ximagesink

gst-launch -v audiotestsrc ! goom ! ffmpegcolorspace ! xvimagesink

2nd uses more cpu than first; though one would think xvimagesink would be 
better. Any explanation?

PS: gstreamer 0.10.32, openSUSE 11.4 64-bit, intel core i3 (1st gen.) with 
integrated graphics

Regards,

Yogesh Marwaha