On 02/05/2012 05:19 PM, Tom Rondeau wrote:
It sounds like we need someone to work on a strip-chart functionality
for the qtgui sinks. They do everything in C++ land, so we could
optimize there more easily.
In other news, glad you found the problem. What do you want to do
about it in the meantime, since it's your code, and I think you're the
primary user of the oscope under these conditions.
Tom
I've backed OUTPUT_RECORD_SIZE down to 4096 on my system here, and it
has acceptable performance for me. In the particular
application at hand, there are six channels being displayed in a
strip-chart, and the chart is updated at about 4Hz (I think, I'll have to
check in the flow-graph). Looking at the plotter code in
scope_window.py there's a lot of computational goo going on in Python land,
including iterating over the input message buffer*number of
channels. It's pretty ugly down there :-(
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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