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Re: [Discuss-gnuradio] Testing an GRC project runs nearly 200% CPU

From: Andreas Ladanyi
Subject: Re: [Discuss-gnuradio] Testing an GRC project runs nearly 200% CPU
Date: Fri, 16 Jan 2015 09:27:46 +0100

Hi Marcus,
Yes, i tested this project with the same RTL stick on an "old" dual-core (actually i dont  know the exact CPU parameters) notebook and it works perfectly. If i start the project from the console via "python2.7 file.py" i get no warnings.

Hello Andreas,

you never need a throttle block when you have hardware that
limits/defines your real-world sampling rate; in your case, it's your RF
hardware and your sound card.
Aside from things like implicit resampling in the audio card driver
infrastructure, it's absolutely possible that your bananapi is simply
not performant enough to do GUI, signal processing and audio playback at
The question is: Does the same application work sufficiently well on a
fast PC? Do you see any over- or underrun warnings on your console?


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