Realtime scheduling : Help

Hi everyone ,
I am just a newbie to gnuradio, please someone guide me. Can some one
please explain me what is realtime scheduling in gnuradio used for. And
how we can use the realtime scheduling in gnuradio , Moreover what is
needed
to make it set up in my ubuntu lucid.Please do guide me if any link or
tutorial will also be very much appreciated.
Thanking you all for your concern and please tolerate me if my post is
a
bit boring and out of track.
Thanks hoping for a reply.
Anil ph.

On Sat, Jul 24, 2010 at 6:12 PM, Anil S. [email protected]wrote:
Hi everyone ,
I am just a newbie to gnuradio, please someone guide me. Can some one
please explain me what is realtime scheduling in
gnuradio used for. And how we can use the realtime scheduling in gnuradio
, Moreover what is needed to make it set up in my
ubuntu lucid.

I might be misunderstanding the question but if your getting a “Failed
to
enable real time scheduling” warning from some of the examples the
following
should resolve it:

(from the faq):
To enable real-time scheduling for non-root users, edit
/etc/security/limits.conf and add this line:

@usrp - rtprio 50

make sure that your user is a member of group usrp, then logout and back
in

I’ve found the ubuntu gui (in the version before) a bit dodgy when
making
the group, the manual way should work of you have the same problem:

sudo groupadd usrp
sudo useradd -G usrp username

Worst case you can probably ignore the error unless your getting lots of
dropped packets.

Cheers,

Tim

I think anil is more concern about, getting data through
usrp_rx_cfile.py, in real time, is it possible in gnuradio, or what
modifications we want to make it possible

On 7/24/10, Tim P. [email protected] wrote:

enable real time scheduling" warning from some of the examples the following

dropped packets.

Cheers,

Tim


Thanks…