Re: [Discuss-gnuradio] usrp2_fft.grc hangs when executed

[Elvis Dowson]

Hi,
     FWIW, I re-ran the same test using the USRP2 and the UHD drivers, on a 
vmware virtual machine running on my iMac quad-core, running Ubuntu-10.04 
64-bit with gnuradio-3.4.0.

I was able to get 20Msps (decimation factor of 5) with the USRP2, and the FFT 
plot GUI was responsive at a refresh rate of 30fps. 

If I tried to run it at 25Msps (decimation factor of 4), I got an over-run, 
with a bunch of Os displayed on the GRC output console.

The only thing still wrong with using a virtual machine is the audio sink. 

I get still audio under-runs aUaU, and choppy FM reception when it runs on a 
virtual machine with gnuradio-3.4.0. 

On a dedicated low-powered system like my T42p laptop, the audio sink works 
fine.

Elvis Dowson