Should have mentioned ... set the throttle rate just slightly higher
than what the chain would consume at steady state when all the buffers
are filled and the USRP is transmitting. How well this works depends on
what the rest of the chain looks like.
- Jeff
On 10/14/2014 05:52 PM, Jeff Long wrote:
Use a throttle block immediately after your source block, setting the
vector size to match your source.
- Jeff
On 10/14/2014 04:34 PM, David Halls wrote:
Dear All,
I am wondering how to add some flow control to a source block, so that
it doesn’t fire out items so quickly.
Later stages of my flow graph are slowed by various bits of processing
and combining, before transmission via USRP, with bursts being
transmitted every few seconds.
What happens is that the block fires out 1,000s of vectors, and then
seems to slow down and settle into sync with the rest of the flow graph
after a few seconds. As my source block is reading in from a Database, I
want to slow this initial rate significantly.
The block outputs vectors of bytes (v_len=144). Any ideas?
Regards,
David
---------------------------------------------------------------
David Halls Ph.D.
Research Engineer
Toshiba Research Europe Limited
32 Queen Square, Bristol, BS1 4ND, UK
Tel: +44 (0) 117 906 0790
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