[Zlib-devel] TR: result of compression test

[Vincent Torri]

On Mon, 26 Jul 2010, Gilles Vollant wrote:

> If possible, I'm curious of other people on this list test and compare all
> the dll
> both for compatibility (which must be perfect) and performance
> the VS2010 DLL seem faster

doesn't this depend on the optimisations used by both compilers ?

Vincent

>
> -----Message d'origine-----
> De : zlib-devel-bounces at madler.net [mailto:zlib-devel-bounces at madler.net] De
> la part de Cosmin Truta
> Envoyé : dimanche 25 juillet 2010 05:34
> À : zlib-devel at madler.net
> Objet : Re: [Zlib-devel] TR: result of compression test
>
> On Mon, Jul 19, 2010 at 1:47 PM, Gilles Vollant wrote:
>> pehaps you can try ohter optimisation on GCC
>> ( -flto for link time optimization, -fprofile-generate...)
>
> I'd like to do LTO, I think it's a good idea, except that it seems
> this feature is not quite ready for prime time in MinGW. Maybe later
> (with later zlib versions).
>
> OTOH I'm not so fond of -fprofile-generate. There's nothing wrong with
> it for a domain-specific application with restricted kinds of input,
> but here zlib is supposed to handle every conceivable kind of input
> and compression parameters in a well-balanced manner. Tailoring the
> executable for source code (such as the Linux kernel), or for any
> other kind of specific inputs, will put everything else at a
> disadvantage.
>
> So, is the DLL archive that I prepared, good to go?
> http://cosmin.users.sourceforge.net/testing/zlib125-dll_ASM.zip
> (to be renamed as zlib125-dll.zip)
>
> Best regards,
> Cosmin
>
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