Re: [Discuss-gnuradio] Intel Atom Processor

[Marc Epard]

On Oct 8, 2010, at 1:46 PM, Sharif Shaher wrote:

> We are thinking of using a 1.6GHz Intel Atom processor based PC with multiple 
> gigabit Ethernet ports
> to collect data from multiple USPR2s and save that data off to disk.  We are 
> hoping to be able to
> use decimation rates as low as 4 for captures of shorts (16bit I and 16 bit 
> Q).  We will be doing
> nothing else on this PC, just capturing data.  So it will host ubuntu and 
> gnuradio.  Does anyone have
> any idea if there is a throughput limit that we might be up against, say for 
> 2 USRP2s, say 4 USRP2s.

I'd guess you'll first run into disk throughput issues. If you solve those, 
there still might not be enough overall system (CPU, chipset, memory, I/O) 
throughput. I don't have any intuition for what the limits might be. How long 
is your sampling run? Will all the data fit in RAM?

-Marc