Serge D. Mechveliani
mechvel at botik.ru
Thu Oct 18 06:41:49 EDT 2007
On Thu, Oct 18, 2007 at 11:33:52AM +0100, Simon Marlow wrote:
> Serge D. Mechveliani wrote:
> >Dear GHC developers,
> >I have tested ghc-188.8.131.5271015-src.tar.bz2 on DoCon and on
> >It looks all right
> >(except the bug-candidate for -O which is common to all GHC versions
> >and which I recently reported
> >On DoCon, ghc-184.108.40.20671015
> >1) builds the project 2-3 times faster than ghc-6.6.1,
> >2) its produced .a code is 1.6 times larger,
> I have noticed binary sizes increasing by around 20% on the nofib suite
> too. We've discovered one issue with some dictionaries not being inlined
> when we would expect them to, but there may be others. I'm investigating.
All this you can easily reproduce in the public docon-2.10:
build the library under -O, build demotest/Main under -Onot and see
the timing of everything and the .a size.
Then try to build demotest/Main under -O. And compare to 6.6.1.
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