[Discuss-gnuradio] Serious performance regression in Gnu Radio recent

[Marcus D. Leech]

I have an application, SIDSuite, that I've been running on my hardware 
here for about 18 months continuously, with reasonable performance
  (the UI isn't totally-snappy, but acceptable).  Some time recently, 
with an upgrade of Gnu Radio, the performance became utterly
  unacceptable--the UI became unusable, and updates to the FFT and 
Waterfall sinks became very "chunky".  I haven't changed the
  app in months and months.

So, I started taking my Gnu Radio back further and further in time, 
until I was back to "normal".  I had to regress my GIT tree back to:

commit 2ed887b69a3b15840830998c4e6157176d427f60
Author: Josh Blum <address@hidden>
Date:   Sat Dec 31 13:06:01 2011 -0800

In order to get decent performance again.

I have no idea what's causing the performance melt-down, but regressing 
back to that commit fixes it, again with no changes to the
  application in question.

I will try creeping forward from this commit to see if I can narrow it 
down.  Blah.


--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org