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Re: [Discuss-gnuradio] saturation with multi_fft.py

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] saturation with multi_fft.py
Date: Wed, 10 Oct 2007 16:10:08 -0700
User-agent: Mutt/1.5.9i

On Wed, Oct 10, 2007 at 06:07:04PM -0400, address@hidden wrote:
> Ok, that works in principle, but I'm finding that I cannot sustain the 
> same data rate as before on a fast dual core machine.
> I'm acquiring all 4 channels, and I'm doing both low-pass and high-pass 
> filtering on all of them.  I am also displaying 5 sinks simultaneously; 1 
> fft and 4 scopes.

You'll most likely find that the bulk of your cycles are spent in the
gui.  Try disabling it.

> So, in the long term it would help to have this sorted out in the fpga if 
> that's possible; is that impossible as things stand now, or is there 
> sufficient space in the 4rx no hb fpga?

IIRC, the std_4rx_0tx.rbf configuration uses about 86% of the FPGA.


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