Originally Posted by Ralph
What parameters are you passing to GtkPerf?
How many iterations?
I think if you just run the program with the same configuration and parameters (or lack thereof) under both the older 1.8.x server and 1.9.0 server and compare them, it should give you a picture of whether you're getting the slowdown or not on your system. It doesn't really matter what other people are getting--differences in their choices of themes and software versions will skew the results.
On the other hand, anything drawing antialiased text with RENDER will be _noticeably_ slower if you're experiencing this regression.