> That's the thing, the server is a linux box. Ah... the picture emerges. :) No fair throwing in the Macbook red herring.
The question you really want answered is "Should I anticipate speedup on my GSL-based application when moving from GCC 4.4 to 4.5 to 4.6 to 4.7 on a Linux-based system...?". Definitely. 10x? No idea. You'd have to profile it. - Rhys
