[mythtv-users] LiveTV without the disk buffering

Mike Heffner mikeh at fesnel.com
Tue Jan 8 14:24:41 UTC 2008


Brad DerManouelian wrote:
> On Jan 7, 2008, at 7:45 PM, Mike Heffner wrote:
> 
>> Steve Hodge wrote:
>>> 7GB per hour is only 2MB per second. If your disk can handle  
>>> writing and
>>> reading simultaneously at that speed there is something wrong. Disk
>>> should not be a bottleneck for a single tuner MythTV system, even  
>>> with HD.
>>>
>> Yep, I tried reformatting from reiserfs to ext3 but the video is still
>> choppy. It appears that this is a problem with the CPU. mythfrontend  
>> is
>> running at about 180% CPU on a Pentium 4 2.4GHz with hyperthreading in
>> LiveTV mode. I've turned off any deinterlacing of the playback stream.
>>
>> Does anyone have experience with the pcHDTV 5500 card? What are the  
>> CPU
>> requirements for this card in LiveTV mode?
> 
> It sounds like it might be your video driver. It should be handling a  
> lot more of the video than it is currently. What card are you using?  
> What drivers?

It's an Nvidia GeForce FX 5700LE card using the 169.07 nvidia driver.


Mike

-- 

  Mike Heffner   <mheffner@[acm.]vt.edu>
                     <mikeh at FreeBSD.org>



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