[Haskell-cafe] Re: Importing Data.Char speeds up ghc around 70%
webmaster at h-labahn.de
Sat Dec 22 14:26:09 EST 2007
Stefan O'Rear <stefanor <at> cox.net> writes:
> If you can reproduce it on your machine (rm <executable> *.o *.hi
> between tests for maximum reliability), it's definitely a bug.
Yes, it was the same as before. Had i reboot meanwhile, because i was out for
meal. 1.34 vs. 2.34 minutes are still the same times now, WITH deletion of the
object files and the .exe between both compiles and runs.
What is happening here ? Does importing Data.Char shadow (in a hidden way) some
timeworn types or methods in the Prelude ? If so, ghc might be still faster
than it looks now.
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