Increased memory usage with GHC 7.10.1

[Paolino]

Hello, I'm using ghc 7.10.1 to compile OpenGLRaw which is now impossible
with -O1 and -O2 due to "ghc : out of memory error" on a 4GB linux host.
The file making memory explode is  Graphics.Rendering.OpenGL.Raw.Functions
<https://hackage.haskell.org/package/OpenGLRaw-2.4.1.0/docs/src/Graphics-Rendering-OpenGL-Raw-Functions.html>.
With -O0 it uses 600 MB.

The file is really huge, but I could compile it with prior versions of ghc.

Regards

paolino

2015-04-17 1:33 GMT+02:00 David Laing <dave.laing.80 at gmail.com>:

> Hi all,
>
> I've been playing around with profiling GHC recently, so I thought I'd
> chime in with a pointer that might save people searching for the right docs
> - you could configure a cabal sandbox to work with multiple version of ghc,
> which I've found useful:
>
>
> https://www.haskell.org/cabal/users-guide/installing-packages.html#sandboxes-advanced-usage
>
> Cheers,
>
> Dave
>
> On Fri, Apr 17, 2015 at 6:01 AM, Michal Terepeta <
> michal.terepeta at gmail.com> wrote:
>
>> Hi Richard,
>>
>> Thanks updating the ticket! What I did was: build GHC HEAD/7.8.4 with
>> build flavor 'prof' then get the haskell-src-exts sources, install the
>> dependencies and finally add +RTS -p -RTS to the cabal file and compile it,
>> the resulting ghc.prof contains the profiling information.
>>
>> For anyone interested about CallArity slowness, the problem is tracked in
>> https://ghc.haskell.org/trac/ghc/ticket/10293
>>
>> Cheers,
>> Michal
>>
>> On Wed, Apr 15, 2015 at 1:40 AM Richard Eisenberg <eir at cis.upenn.edu>
>> wrote:
>>
>>> I've pasted Michal's numbers in #9630, which seems like a good place to
>>> track this. Michal, would you mind fleshing out a bit precisely what you
>>> did to get those numbers? That would be helpful (though you've already been
>>> very helpful indeed in getting the data together)!
>>>
>>> Thanks,
>>> Richard
>>>
>>> On Apr 14, 2015, at 9:09 PM, Joachim Breitner <mail at joachim-breitner.de>
>>> wrote:
>>>
>>> > Hi,
>>> >
>>> > Am Dienstag, den 14.04.2015, 21:54 +0200 schrieb Michal Terepeta:
>>> >> On Mon, Apr 13, 2015 at 10:34 PM, Christiaan Baaij
>>> >> <christiaan.baaij at gmail.com> wrote:
>>> >>> Actually, I meant only with -fno-specialise.
>>> >>
>>> >> Done. Helps quite a bit but CallArity is still a pretty expensive.
>>> >
>>> > I’m on that, and I think I have a quite neat fix for it. I’ll report on
>>> > that in the trac ticket:
>>> > https://ghc.haskell.org/trac/ghc/ticket/10293#comment:4
>>> >
>>> > Greetings,
>>> > Joachim
>>> >
>>> > --
>>> > Joachim “nomeata” Breitner
>>> >  mail at joachim-breitner.de • http://www.joachim-breitner.de/
>>> >  Jabber: nomeata at joachim-breitner.de  • GPG-Key: 0xF0FBF51F
>>> >  Debian Developer: nomeata at debian.org
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