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High CPU utilization on cx88_dvb all the time
PostPosted: Mon Nov 26, 2007 4:56 pm Reply with quote
mdtaylor69
 
Joined: 26 Nov 2007
Posts: 3




I have the latest pchdtv 5500 card installed on OpenSuse 10.3, kernel 2.6.22.12-0.1-bigsmp. MythTV 0.20.2-9 seems to record and playback OK, but the cx88[0] dvb process is at 60 to 99% CPU all the time. The only relief is to stop the mythbackend and modprobe-r cx88_dvb, which of course, renders it nonfunctional. The backend server is a P4 3.2 GHz with 3 GB of RAM, 3.5 TB of disk.

I added the card to mythTV per the following web guide:

http://lunapark6.com/pchdtv-hd-5500-hdtv-for-your-linux-desktop.html

Anybody else observing high CPU utilization with this card?
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PostPosted: Thu Nov 29, 2007 10:04 pm Reply with quote
mdtaylor69
 
Joined: 26 Nov 2007
Posts: 3




CPU utilization seems to be happier after disabling EIT scanning on the backend for this DVB card.

Here is what I was seeing in the myth backend log:

2007-11-29 03:54:44.272 EITScanner: Added 652 EIT Events
2007-11-29 03:54:44.414 Reschedule requested for id -1.
2007-11-29 03:54:46.404 Scheduled 56 items in 2.0 = 0.19 match + 1.80 place
2007-11-29 03:58:03.435 DVBChan(0) Warning: Symbol Rate setting (0) is out of range (min/max:5056941/10762000)
2007-11-29 03:58:03.495 EITScanner: Now looking for EIT data on multiplex of channel 49.1
2007-11-29 04:00:26.158 EITScanner: Added 316 EIT Events
2007-11-29 04:00:26.752 Reschedule requested for id -1.
2007-11-29 04:00:27.782 Scheduled 56 items in 1.0 = 0.24 match + 0.79 place
2007-11-29 04:03:13.658 EITScanner: Added 316 EIT Events
2007-11-29 04:03:13.697 Reschedule requested for id -1.
2007-11-29 04:03:14.291 DVBChan(0) Warning: Symbol Rate setting (0) is out of range (min/max:5056941/10762000)
2007-11-29 04:03:14.321 Scheduled 56 items in 0.6 = 0.28 match + 0.34 place
2007-11-29 04:03:14.337 EITScanner: Now looking for EIT data on multiplex of channel 22.1
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High CPU utilization on cx88_dvb all the time
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