[mythtv-users] Stutter with a P3 933Mhz! Gezzz - more STUTTER!

[Michael J. Lynch]

I use a P3 750 Mhz system with 384Meg and don't experience anything like 
this and my machine is both front and back end.  What do top show for 
idle time when this is occurring?  What capture resolution are you 
using?  What type of encoding?


john roberts wrote:

>Lots of great email/feedback.  Thanks everyone.
>
>Here are the answers to some of the questions:
>
>- DMA is on (hdparm reports DMA as being on for both the HD and the CDROM)
>- I'm using the latest nVidia driver and is set to Driver "nvidia" in XF86Config
>- I think the Network stuff is 3com and Linksys
>- I've even tried to overclock the CPU to bring it up to 966Mhz (vs. 933)
>
>So - I'm still confused why I'm getting stutter with NTSC content.  I still have to "pause" and "un-pause" to get it smooth.
>
>I've even tried changing the AGP setting in XF86Config to use the onboard vs. the nVidia support.  No real change (if at all).
>
>So - any other ideas?  thanks again everyone for the support.
>
>-John
>
>----- Original Message -----
>From: Ben Stanley <bds02 at uow.edu.au>
>Date: Wed, 01 Sep 2004 19:29:18 +1000
>To: Discussion about mythtv <mythtv-users at mythtv.org>
>Subject: Re: [mythtv-users] Stutter with a P3 933Mhz! Gezzz - more STUTTER!
>
>  
>
>>Check whether you have dma turned on - check the MythTV documentation in
>>the troubleshooting page.
>>
>>Ben.
>>
>>On Wed, 2004-09-01 at 00:12, john roberts wrote:
>>    
>>
>>>Well - after upgrading my P3 500Mhz CPU to a P3 933Mhz the stutter is better while playing live NTSC TV - but it's still there during live-tv.  I have to hit "p" (pause) and then un-pause it to remove all stutter.
>>>
>>>What is the min footprint for a MythTV frontend????  My other myth box is a front/backend combo with a PVR-250 and a pcHDTV card and I don't seem to have a stutter problem with it (P4 2.6G HT CPU).
>>>
>>>I've tweaked everything I can think of:
>>>
>>>- I've re-niced the mythtv process and the X process like others have done
>>>- I've checked with TOP and it's not a memory issue (running 256M and not using SWAP at all)
>>>- I've compiled with -march=pentium3
>>>
>>>Have I missed anything?  Is a P3 just not capabile of being a frontend?
>>>
>>>Here are the details:
>>>
>>>Frontend/Backend combo:
>>>- P4 2.6G HT (512M)
>>>- nVidia FX5500
>>>- PVR-250
>>>- pcHDTV
>>>- Latest CK's IVTV driver
>>>- Latest CVS of MythTV
>>>- 100Mbps NIC
>>>
>>>Frontend:
>>>- P3 933M (256M)
>>>- some old nVidia card (AGP card)
>>>- Latest CVS of MythTV)
>>>- 100Mbps NIC
>>>
>>>Network:
>>>- 100M switch
>>>
>>>-John
>>>      
>>>
>
>  
>
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>>    
>>
>
>  
>

-- 
Michael J. Lynch
Gcom Inc.


"What if the hokey-pokey IS what it's
all about?" -- author unknown