[Haskell-cafe] Ridiculously slow FFI, or cairo binding?

[Eugene Kirpichov]

Hi Axel,

When do you expect to publish an updated version of gtk2hs on hackage?

On Thu, Nov 3, 2011 at 1:02 PM, Eugene Kirpichov <ekirpichov at gmail.com> wrote:
> Hi,
> The actual thanks for tracking this down go to Vincent Hanquez for finding
> that we're doing a lot of gmp calls (and for making me aware of ltrace), and
> to Felipe Lessa for finding that this is caused by poor code generated for
> cFloatConv  :)
> Your changes look identical to those that I made in my copy.
> On Thu, Nov 3, 2011 at 11:41 AM, Axel Simon <Axel.Simon at in.tum.de> wrote:
>>
>> Hi Eugene,
>>
>> On 02.11.2011, at 17:34, Eugene Kirpichov wrote:
>>
>>> Heh.
>>>
>>> Guess what!
>>> A simple {-# INLINE cFloatConv #-} helped to the same extent!
>>>
>>> Axel, I think this change should be pretty easy to incorporate, and it
>>> probably makes sense to inline all other functions in Types.chs too.
>>>
>>
>> I've added INLINE pragmas to all these odd c2hs marshalling functions.
>> Could you pull and check if I've done it correctly?
>>
>> Thanks for tracking this down!
>>
>> Axel
>>
>>> Would you like me to send the trivial darcs patch or the gtk2hs team
>>> will take care of this?
>>>
>>> On Wed, Nov 2, 2011 at 7:29 PM, Felipe Almeida Lessa
>>> <felipe.lessa at gmail.com> wrote:
>>>>
>>>> On Wed, Nov 2, 2011 at 11:24 AM, Jean-Marie Gaillourdet
>>>> <jmg at gaillourdet.net> wrote:
>>>>>
>>>>> Hi Eugene,
>>>>>
>>>>> did you try using the SPECIALIZE pragma? It is part of the Haskell 98
>>>>> and Haskell 2010 specifications.
>>>>
>>>> I don't think it's going to make any difference, as the core already
>>>> have an specialized poor version.  See my first e-mail.
>>>>
>>>> --
>>>> Felipe.
>>>>
>>>
>>>
>>>
>>> --
>>> Eugene Kirpichov
>>> Principal Engineer, Mirantis Inc. http://www.mirantis.com/
>>> Editor, http://fprog.ru/
>>
>
>
>
> --
> Eugene Kirpichov
> Principal Engineer, Mirantis Inc. http://www.mirantis.com/
> Editor, http://fprog.ru/
>



-- 
Eugene Kirpichov
Principal Engineer, Mirantis Inc. http://www.mirantis.com/
Editor, http://fprog.ru/