[mythtv-users] Performance
Peter Hutnick
peter-lists at hutnick.com
Sun Aug 3 22:08:34 EDT 2003
Ray Olszewski said:
> At 07:30 PM 8/3/2003 -0600, Peter Hutnick wrote:
>>The CPU is a Celeron 1.3GHz. Seems like this should be ample for
>> watching TV.
>
> ... you may be underestimating the CPU load of watching "live" TV.
You nailed it here.
> Also, since you don't say what video card and X driver you are
> using, it is unclear if XVideo is running properly, another source of
> CPU load problems.
The card is a "Radeon R200 QL [Radeon 8500 LE]" according to /proc/pci.
The associated kernel module is just listed as "radeon" and is whatever
comes with Red Hat 9.
(KDE) Control Center->Information->X-Server says Server
Information->Supported Extensions->XVideo (and MIT-SUNDRY-NONSTANDARD,
thank goodness!)
mythtv says "Using XV port 61"
I don't know how to check for "running properly" any further. How can I
check?
> So check this by running "top"
Top is reporting ~8% idle on average with the default settings (mjpeg at
170 and mp3 at 7 IIRC). Dropping them to 120 and 5 helped, but didn't
resolve it altogether. Dropping to 100 and leaving mp3 at 5 seems to have
resolved it.
Thanks for the advice, Ray, you hit the nail on the head.
Does anyone have any suggestions that might reduce the amount of fiddling
I have to do to get the best results I can? Things like "forget MPEG-4"
or "Use raw audio if you have lots of disk." are what I am looking for.
But I just made those two things up, so let me know if they are right or
wrong ;-)
Thanks again for all the help, guys!
-Peter
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