Re: [Discuss-gnuradio] buffer size 32k

[Eric Blossom]

On Wed, Jul 05, 2006 at 11:25:55AM -0400, Chuck Swiger wrote:
> I'm curious about this statement in
> $PYTHONPATH/gnuradio/gr/flow_graph.py
> 
>         # We could scan the graph here and determine individual sizes
>         # based on relative_rate, number of readers, etc.
> 
> 
> In the meantime, it would be nice to be able, somehow, to tweak the
> global buffer size from inside an application, without having to
> edit flow_graph.py manually. Or a GR_BUF_SIZE environment variable.
> 
> Because: One of my simple test apps works 600% faster using 4k buffer
> instead of 32k, since it doesn't have to wait for stale data to clear.

Chuck, can you point me at the code for the application?
I wouldn't expect the size of buffer to matter as long as each block
returned all the data asked for on each call to work.

> Seems like the ideal setting for a 'tight' app would be as small as
> possible that still runs without hiccups, to minimize delays in
> transmit/receive turnaround time, etc. 
> 
> --Chuck

Again, please point me to the code.

Eric