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Re: [Discuss-gnuradio] GRC's graphical sinks performance issues

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] GRC's graphical sinks performance issues
Date: Sat, 04 Sep 2010 00:23:48 -0400
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20100720 Fedora/3.0.6-1.fc12 Thunderbird/3.0.6

On 09/04/2010 12:01 AM, Eric Blossom wrote:
> FWIW, independent of GNU Radio, I've found that OpenGL support in
> Linux still leaves a lot to be desired in the performance and
> reliability departments.  (Spoken as someone who's recently tried high
> performance cards from both Nvidia and ATI, trying both the
> proprietary and open source drivers for each one...  on Fedora 13)
> Eric
I have a system upon which *none* of the Gnu Radio apps that include
OpenGL "stuff" will work at all, producing
  an almighty core dump from inside some Python gtk2 module.  Even when
  That's for identical F12 installations, Gnu Radio installations, etc,
etc.  Only difference is the video card.  And if I
  turn off OpenGL, things work.  But curiously enough the little OpenGL
test app, glxgears, works flawlessly (of course!).

Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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