19 Mar
2008
19 Mar
'08
11:23 a.m.
| I have noticed that there is a great difference between optimizing | modules separately and all at once, e.g., with -fforce-recomp. I have | had examples factors up to 15 in run time (and even different behavior | in context with unsafePerformIO). GHC does a lot of cross-module inlining already, and *does* write stuff into interface files, provided you use -O. I'm always interested in performance differences of a factor of 15 though! Can you supply an example (as small as poss) for us to look at? Thanks Simon