James Roberts (INRIA, France) is one of the big names of performance modeling (we had a citation from him on the first lecture). He is giving a talk on Sept 26, 13:00. The tals is open for everyone, you may want to come too:

http://www.kth.se/en/ees/omskolan/organisation/centra/access/newsandevents/seminars/dls/dlsspeakers-1.35950