[mythtv-users] Dual processors -- better than single fast processor?

[Eric Weide]

Do you have a link to the m179's at Frys?  I searched but couldn't find
them.  Perhaps in store only?


On Fri, 2004-07-16 at 17:26, Gregory J. McGee wrote:
> Avermedia M179s are now $39 at Frys.. Closing them out.
> 
> Get 2, and your single proc 1GHz machine will be fine.
> 
> > Message: 9
> > Date: Fri, 16 Jul 2004 13:08:43 -0400 (EDT)
> > From: Cory Papenfuss <papenfuss at juneau.me.vt.edu>
> > Subject: Re: [mythtv-users] Dual processors -- better than single fast
> >         processor?
> > To: Discussion about mythtv <mythtv-users at mythtv.org>
> > Message-ID: <Pine.LNX.4.60.0407161302170.5708 at juneau.me.vt.edu>
> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
> > 
> >         I have used mythtv on both a dual celeron 300->450, and a
> > duall PIII 
> > 750->1GHz (see a pattern here?... :)  No single process of mythtv can
> > utilize 
> > more than one cpu at present, but the nature of what mythtv does lends
> > itself 
> > to multiple processes to some degree.  A 1GHz PIII is pushing it for
> > both 
> > encoding (MPEG4) and playing at the same time.  The dual worked will
> > in that 
> > situation (mythbackend took 90% cpu, mythfrontend + X approx 60-80% of
> > the 
> > other).  If you were trying to do something fancy with the encode or
> > really 
> > high resolution, you'd be bumping up against a single 1GHz PIII
> > encoding.  I 
> > did on mine, and ended up with a 480x480 IIRC.  If you wanted
> > full-tilt 720x480 
> > with deinterlacers, denoisers, etc, the 1GHz won't do.
> > 
> >         Even with the dual, it tends to boil down to how fast the rest
> > of the 
> > system is as well.  There's lots of data flying around (raw YUV over
> > PCI bus 
> > being a huge one), so if you don't have things tweaked and good vid
> > card, it's 
> > pushing it.  I've since gotten rid of the bttv card from my system
> > (crappy 
> > hardware), so I only use the pvr-250.  I highly recommend the MPEG2
> > card, as it 
> > gave me better quality in addition to the reduced CPU load.
> > 
> > YMMV
> > -Cory
> > 
> 
> 
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