[Haskell-cafe] GHC needs a 64 bit machine to be fast?

FFT fft1976 at gmail.com
Wed Apr 8 11:20:13 EDT 2009


On Wed, Apr 8, 2009 at 3:21 AM, Roel van Dijk <vandijk.roel at gmail.com> wrote:
>> Suspiciously, "ghc -O2  --make" is almost as fast at 24.438s (6.10.2)
>
> You have to be careful when recompiling with a different -O setting
> that you first remove all intermediate files (.o and .hi). I think
> that GHC only looks at the source to determine which files need to be
> compiled and not at any settings.
>

Thanks, I noticed that. All these timings were done after the removal
of intermediate files and recompilation.


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