<span style="font-size:12.727272033691406px;color:rgb(34,34,34);font-family:arial,sans-serif;background-color:rgb(255,255,255)">> No, as nothing of current Pd can be hardware accelerated. </span><div><span style="font-size:12.727272033691406px;color:rgb(34,34,34);font-family:arial,sans-serif;background-color:rgb(255,255,255)">> A fast GPU </span><span style="font-size:12.727272033691406px;color:rgb(34,34,34);font-family:arial,sans-serif;background-color:rgb(255,255,255)">would only provide a benefit for Gem.</span><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255)"><br>
</span><br>Therefore, you can improve the performance of GEM on a RPI with an external video card, cool.<br><br>But so just to be cristal clear then, Audio Cards do not improve CPU at all, right? But they can improve latency issues at least, can't they?</div>
<div><br></div><div>Sticking to the Pi issue, since it is so economic in CPU power, what are the efficiency benefits from audio cards more than just number of inputs and outputs?</div><div><br></div><div>> try to make pd and pd-gui talk less to each other</div>
<div> > (for instance, by reducing the update rates for your GUIs).</div><div><br></div><div>and how can you do that? :)</div><div><br></div><div>thanks<br><br><br><div class="gmail_quote">2013/2/1 Roman Haefeli <span dir="ltr"><<a href="mailto:reduzent@gmail.com" target="_blank">reduzent@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Fre, 2013-02-01 at 04:14 -0200, Alexandre Torres Porres wrote:<br>
> by the way, since I've been abusing so much of the GUI to build me<br>
> fancy interfaces, I can see how easily it can choke on its update and<br>
> flood the CPU.<br>
><br>
><br>
> Now, could an external video card help on that? What is the issue?<br>
<br>
</div>Since the GUI process (called pd-gui) is computed on the CPU, a<br>
dedicated video card wouldn't help.<br>
<div class="im"><br>
> I'm using a macbook air and I see that the video processor is built-in<br>
> the CPU or something like that, hence no proper videocard. I figure<br>
> the RPI has gotta be something like that.<br>
><br>
><br>
> So, does it mean a macbook pro or other laptop / computer with some<br>
> badass video processor or card can run the patches better even with<br>
> same clock?<br>
<br>
</div>No, as nothing of current Pd can be hardware accelerated. A fast GPU<br>
would only provide a benefit for Gem. However, pd and pd-gui are two<br>
separate processes and they run on separate cores, if there is more than<br>
one. Most laptops (netbooks not included) have at least two cores<br>
already. This means on many laptops, pd-gui does not eat away CPU power<br>
from the pd process.<br>
<br>
Beware that there is also another bottleneck: the communication between<br>
pd and pd-gui. A possible cause for audio-dropouts is the saturation of<br>
the TCP link between the two as it might be triggered by frequent array<br>
updates or similar. If you experience troubles, try to make pd and<br>
pd-gui talk less to each other (for instance, by reducing the update<br>
rates for your GUIs).<br>
<br>
Roman<br>
<br>
<br>
<br>
<br>
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</blockquote></div><br></div>