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

[Marcus D. Leech]

On 09/02/2010 12:52 AM, Matt Ettus wrote:
>
>
> This is where your problem is.  If you are using decimation of 4 then
> you are sending 25 million samples per second to the display. 
> However, you are telling it that its sample rate is 1 Million.  Thus
> you are giving it 25 times as many samples per second as it expects. 
> Tell it to expect 25 MS/s and you won't have any problem.
>
> Matt
>
25Msps with a 1.6GHz CPU, with default FFT display update rate?  Aint
gonna happen, in my experience.

Smaller bandwidth, lower FFT update rate (5Hz, instead of the default
which is much higher).

-- 
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org