Illume / ASU on GTA01 - Video
Carsten Haitzler (The Rasterman)
raster at openmoko.org
Sat Jun 7 05:08:42 CEST 2008
On Sat, 7 Jun 2008 03:36:10 +0530 "Rahul Joshi" <rjoshi31 at gmail.com> babbled:
> The question may have been beaten to death but the answers surely haven't
> been satisfactory. (except for this and Rasterman's.)
> The only conclusion one can derives from all previous posts is:-
> 1. Everybody needs a VGA
> 2. VGA wont perform as smooth as it should on this CPU
> 3. We should have faster CPU (which in turn still would not matter since the
> bus speed is limited)
> I have my doubts cleared now. Thanks.
if you want the :beaten to death" threads - search the archives for anything i
have mailed - u'll see ones about video playback performance and others - i go
into lots of details. that is what mickey is talking about. not the immediate
last few mails this week... :)
> Rahul J
> On Fri, Jun 6, 2008 at 11:26 PM, Michael 'Mickey' Lauer <mickey at openmoko.org>
> > On Friday 06 June 2008 18:21:07 Rahul Joshi wrote:
> > > I cannot really argue now that you say you have both and see it upfront
> > :(
> > > It would be really nice if you can briefly educate as to why this is
> > > happening. The question is: What is making it 'not possible' to use the
> > > extra CPU speed in 02. Is it a bus limitation? Is it a software
> > bottleneck?
> > Please... this topic has been beaten to death on the lists during the last
> > couple of weeks.
> > Briefly: If it's just about putting pixels on the screen, then what we win
> > with the faster rendering speed is lost due to the smaller bus bandwith to
> > the GPU. Plus, SD transfers go the same path, hence sharing bandwith with
> > transferring pixel commands to the GPU.
> > Number crunching though is almost twice as fast on the 02.
> > Can we talk about something else now?
> > :M:
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Carsten Haitzler (The Rasterman) <raster at openmoko.org>
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