[mythtv-users] Strange X CPU usage for 720p input streams
Paul Robertson
paulrobertson at swbell.net
Mon Jul 3 08:11:03 UTC 2006
A little more information on this problem. I watched of full half hour of
a 720p recording. mythfrontend was consistently around 45 %CPU usage. And
then, about half of the time Xorg %CPU usage would jump up from near 0 %CPU
usage to 50% consuming all available idle cycles. At the time this occurs,
the video is a little jerky and audio with occasionally skip, where as both
had been very good previously. At the time of this high Xorg %CPU usage, X
stdout scrolls this continuously for minutes at a time:
.
2006-07-03 02:48:28.311 NVP: prebuffering pause
2006-07-03 02:48:28.328 NVP: prebuffering pause
2006-07-03 02:48:28.345 NVP: prebuffering pause
.
.
,
And, 'mythfrontend -v playback' coincidently is scrolling this:
2006-07-03 02:48:28.312 NVP: Waiting for prebuffer.. 0 LDAALDA
2006-07-03 02:48:28.328 NVP: Waiting for prebuffer.. 0 dAALLDA
2006-07-03 02:48:28.345 NVP: Waiting for prebuffer.. 0 dALDLAA
.
.
.
Again, I don't see this with 1080i. It's Xorg %CPU usage is always near
zero. This prebuffing messages do occur with 1080i, but only last for 1
second here and there, never continuously.
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