[mythtv-users] Multiplexing vs multiple cards

Paul Buchanan paul.buchanan at gmail.com
Fri Nov 5 00:47:37 UTC 2010

Alrighty.  So I have loads of things to follow up on now that I've received
so many responses.

This one in particular intrigues me, specifically the option to "offload the
display processing to the gpu".  I have an nvidia card (not sure of the
model right now since I"m not at home).

How would one do such a thing?



On Thu, Nov 4, 2010 at 9:28 PM, Anthony Giggins
<seven at seven.dorksville.net>wrote:

> On 4 November 2010 16:03, Christopher Kerr <mythtv at theseekerr.com> wrote:
>> On Thu, Nov 4, 2010 at 4:13 PM, Paul Buchanan <paul.buchanan at gmail.com>
>> wrote:
>> > I'm using hardware that I've rescued from various sources to make one
>> master
>> > and one slave.  3ghz and 2.8ghz P4 CPUs.
>> > Quite old I know ... so I'm trying to manage the load as best I can with
>> > config tweaks.
>> Ah, fair enough - hot, power hungry, and pretty weak by todays
>> standards. I have a P4 3.0GHz under my desk as a footrest - I suspect
>> it has worked its last day ;o)
>> I'd suggest you limit the system to 2 simultanous jobs and see how you
>> go - real time commflagging isn't as CPU intensive as it might be,
>> because it's capped at the framerate of the incoming video.
>> Oh, and make sure you make life as easy as you can for it - put the
>> database on a different disk to the recordings, and spread your
>> recordings directories over 2+ disks too, if you can - made a huge
>> difference to my (rather more powerful) system - with 3 harddrives, I
>> can now record 6 programs (typically 5 SD and 1 HD, given how little
>> real HD content we get here) with commflagging whilst playing a
>> recording on a seperate frontend - I've never tried winding up both
>> frontends at once on a Saturday night, but I suspect it'd handle it.
>> - Chris
> I'd even go as far as limiting the simultanous jobs to 1, especially if you
> ever export recordings, my P4 3.0GHz seems to run fine now I fixed my
> thermal throttling issues thanks to some suggestions from the list but I am
> using a nvidia GT240 to offload alot of the display processing to the GPU.
> Cheers,
> Anthony
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