[mythtv] Hardware configuration
Mon Jan 6 06:33:14 EST 2003
What are your north and south bridges? What is the output of hdparm -tT
/dev/[your recording medium, i.e.: /dev/hda]?
Get a printout for hdparm -I /dev/hdx, and look under Capabilities. Make
sure r/w multiple is maxed out, and dma mode is correct, etc.
Commands/features should show that look-ahead and write caching are enabled.
The best settings are typically the default.
----- Original Message -----
From: "Johann Klemmack" <email@example.com>
Sent: Monday, January 06, 2003 00:20
Subject: RE: [mythtv] Hardware configuration
> Heh - weird. I have an Athlon 1700+ and I can NOT get jitter-free mpeg4
> 640x480. I have a GeForce4 MX420 card, 512 RAM, off a VIA chipset with an
> ATA100 harddrive, and WinTV. Everything is running off of Redhat 8.0 (b/c
> I'm a slacker). I have DMA enabled for the harddrive access, but trying
> run mpeg4 at all pretty much peaks out my processor. I've thought about
> just upgrading my proc to an Athlon 2100+ (don't worry, the 1700+ will be
> put to good use ;-) but by the sounds of this, something's wrong in my
> system. Any help on getting me jitter-free mpeg4?
> > -----Original Message-----
> > From: firstname.lastname@example.org
> > [mailto:email@example.com]On Behalf Of Bruce Markey
> > Sent: Monday, January 06, 2003 12:37 AM
> > To: firstname.lastname@example.org
> > Subject: Re: [mythtv] Hardware configuration
> > Stephan Wentz wrote:
> > > ...celeron 1200, 512 mb ram...
> > > ...recording and timeshifting...
> > > ...will this machine be fast enough to accomplish that?...
> > Yes. 640x480 mpeg4 with the default settings should take
> > about 70 some percent CPU utilization. you'll be able to
> > timeshift, which is record and playback of a ringbuffer,
> > and shouldn't see any jitter problems.
> > -- bjm
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