[mythtv-users] Re: OT: nVidia and XvMC?

[Mark Linford]

On 10/15/05, Simpson, Richard <Richard.Simpson at wgint.com> wrote:
>
>
> > -----Original Message-----
> > From: mythtv-users-bounces at mythtv.org
> > [mailto:mythtv-users-bounces at mythtv.org]On Behalf Of Mark Linford
> > Sent: Saturday, October 15, 2005 9:39 AM
> > To: Discussion about mythtv
> > Subject: Re: [mythtv-users] Re: OT: nVidia and XvMC?
> >
> >
> > On 10/15/05, Brian Merrill <bmerrill at sfcn.org> wrote:
> > > Hi, you really haven't said much about your setup outside
> > of your Myth
> > > hardware so this is probably way of the mark, but I figure
> > it couldn't
> > > hurt to mention.  Anyway, is that Sempron 64 bit?  And are
> > you running
> > > FC 3 64 bit as well as the NVidia 64 bit binary driver?  If so, from
> > > what I can tell on the nvnews.net linux forums, XVMC pretty
> > much doesn't
> > > work at all with the 64 bit driver.  That said, if the 64
> > bit scenario
> > > doesn't come into play for you, then please disregard.
> > However, it does
> > > sound eerily similar to what I was chasing for a short
> > while trying to
> > > get XVMC to work on my Athlon 64, so worth a shot in mentioning.
> > >
> > >
> > The Sempron is 64bit capable, but I'm using the 32bit version of FC4,
> > for the same reasons you mention above. Here's some more detail about
> > my setup:
> >
> > * GIGABYTE GA-K8VM800M Socket 754 VIA K8M800 Micro ATX AMD Motherboard
> > * GIGABYTE GV-N62128DE Geforce 6200 128MB DDR AGP 4X/8X Video Card
> > * AMD Sempron 64 2500+ Palermo 800MHz FSB Socket 754 Processor Model
> > SDA2500BXBOX
> > * Kingston ValueRAM 512MB 184-Pin DDR SDRAM DDR 400, one stick
> > * pcHDTV HD3000
> > * Hauppaguge PVR-150
> >
> > Let me know if you need any more info. Thanks!
> >
> Can you ssh in from another workstation to see if your CPU is actually pegging out and what processes might be hogging it? I found that enabling commercial flagging while trying to play back a HD recording caused the mythcommflag process to eat up about 45% of the CPU by itself, and pegging everything at 95+%. I haven't had time to troubleshoot this, but presumably mythcommflag has to decompress the stream to do its thing. At one point I even saw TWO copies of mythcommflag running at about 45% each, resulting in only about 1 in 50 frames getting to the TV.
>
> Richard.
> ________

Well, when playing back anything HD (prerecorded or livetv),
mythfrontend pegs about 90-95%, with mythbackend taking up the rest.
mythcommflag isn't even running. SD content only takes about 10-15%
CPU, btw


Mark