The next LLVM/Clang Social Damstadt (Germany) will be on Wednesday, September 27th.
This time we will have Sebastian Kreutzer from the Institute for Scientific Computing talk about “Selective Instrumentation with XRay” (and a related RFC: [RFC] Upstreaming DSO Instrumentation Support for XRay)
Please RSVP in the meetup to help facilitate planning. Thanks 
(We will see if / how we can make a recording of the talk available.)