[mythtv-users] Does 3d performance matter at all with Myth?

[Josh White]

On Wed, Mar 24, 2010 at 10:14 AM, Johnny Walker <johnnyjboss at gmail.com>wrote:

> This machine is a desktop PC for my wife. She does almost nothing that
>
>> stresses her current Celeron machine. One core of an i920 is overkill
>> for.
>>
>>
> I have only 1 backend and it's also a Mythbuntu Desktop machine for us to
> run Transmission, quickly access a web browser or even rdesktop up to my
> office when I'm working from home.
>
> Once I separated the Recordings storage directories to their own drive and
> I chose to also put in 4 gigs of ram - this triple-core (I had to be
> different) AMD Phenom(tm) II X3 705e works great.
>
> My tuners are 1 HDPVR and 1 HDHR.
>
> I haven't timed commercial flagging but it's plenty fast.
>
> -Johnny
>
> For what it's worth:




> I have a similar setup running on a 2.3 ghz Phenom x4 that serves as an HD
> frontend (using VDPAU on the on-board 8200 GPU), a backend w/2x PVR-500, a
> 2tb RAID 5 storage array (has my myth video files, music, and general
> storage) and it's generally running a Transmission client.  In addition to
> casual web surfing, I've played Nexuiz (a first-person shooter game) @1080p
> on my 46" flat panel while the machine is also recording/commflagging and
> serving files to other frontends while also rebuilding the RAID 5 array (I
> added another drive, so rebuilding, redistributing...whatever you call it
> when you add another drive). I'll also rip several DVD's with handbrake
> simultaneously from several machines on my network (including the server
> itself), storing the output on the RAID array (which I would assume would be
> similar to running an HD-Homerun in terms of bandwidth), while it's
> recording, serving flies to other frontends, etc.  My machine has 4GB of
> ram, the OS/Database has it's own hard disk, recordings are done on their
> own disk, and the 4 750 gb Raid 5 array is in the case too.  It's connected
> to the same 16port gigabit switch as the rest of the machines on my network,
> which also helps.
>
> Granted, this backend only records SD, so the IO requirements aren't quite
> as high as they would be with HD recordings, you may not have a similar
> experience.
>
> I wouldn't say my machine is 100% rock solid stable (some people get a bit
> crazy about this if you ask me), but it's run for a month or more at a time
> without a reboot (and then only because I did a kernel update)
>
> So in other words, as long as your not fanatical about have 100% up time,
> and if a minor half-second skip in a recording or playback once in a
> great while isn't going to ruin you day, then I wouldn't hesitate to run the
> machine as you describe.  If you expect it to be perfect every time, all the
> time, then I'd strongly recommend running a stand-alone backend server.
>

-Josh
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