Binary bloat in 7.10

[Carter Schonwald]

Great sleuthing!! Thanks for pinning down whats going on!
On Apr 2, 2015 8:48 PM, "Thomas Miedema" <thomasmiedema at gmail.com> wrote:

> Jeremy,
>
> On Thu, Apr 2, 2015 at 2:12 PM, Thomas Miedema <thomasmiedema at gmail.com>
> wrote:
>
>> Maybe `split-objs` is not applied?
>>
>
> That suggestion was completely misguided. Compiling with `-split-objs`
> makes a library _grow_ in size, but makes executables that link against it
> _smaller_.
>
> Size of `libHSCabal-1.22.2.0` obtained by running `cabal install
> Cabal==1.22.2.0 --with-ghc=ghc-x.x.x (--enable-split-objs)`, on 64bit
> Ubuntu:
>
>         default   --enable-split-objs
> 7.8.4:  19Mb      46Mb
> 7.10.1: 21Mb      52Mb
>
> So the 7.10 versions are indeed somewhat larger, but I wouldn't call it
> ballooned or bloated. Note that a ghc build compiles the libraries with
> -O2 , which increases the binary size another 5% or so.
>
> All these numbers are not far off from the ones you were getting. I think
> you have been comparing a 7.8.4 build of Cabal without split objects, with
> a 7.10.1 build of Cabal with split objects.
>
> I don't think there is a bug here.
>
> -Thomas
>
>
> P.S. To show that binary sizes not only grow with new ghc releases, here
> is the same experiment with random:
>
> `cabal install random==1.0.1.1 --with-ghc=ghc-x.x.x (--enable-split-objs)`
>
>         default  --enable-split-objs
> 7.0.4:  0.94M    1.9M
> 7.2.2:  1.1M     2.1M
> 7.4.2:  0.86M    1.8M
> 7.6.3:  0.85M    1.8M
> 7.8.4:  0.76M    1.7M
> 7.10.1: 0.69M    1.6M
>
>
>
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