[Bf-committers] Blender on Windows - some thoughts about XPand32bit

[Jürgen Herrmann]

Hi sergey,

As you mention VS2013... I got my upgrade license recently but had no time to test it yet. I could try a port to vs 2013 in February 2014. So we could actually skip VS 2012 and switch to VS2013 directly.
And drop XP maybe in a release that comes in the second half of 2014.
With asap I did not mean we should drop XP support immediately, but we can't support it forever and vs2012+ gives us very the chance to speed up blender significantly if we had the chance of carving out the VS2008 stuff and optimize the code for the new compilers.

----- Ursprüngliche Nachricht -----
Von: "Sergey Sharybin" <sergey.vfx at gmail.com>
Gesendet: ‎05.‎12.‎2013 19:17
An: "bf-blender developers" <bf-committers at blender.org>
Betreff: Re: [Bf-committers] Blender on Windows - some thoughts about XPand32bit

We would need to drop XP at some point, but it should not be ASAP. It
should be a clear for everyone process with defined release when we're
dropping. Ideally it should be connected with switching to a new official
compiler for windows. Meaning, when we're considering MSVC 2013 as a
default to build blender on windows then we might stop maintaining old
libraries and let XP support fade down naturally.

As for dropping support of 32bit -- i don't see good reason for this just
yet. It might be 2-3 people who supports libs on windows, but i only know
one who supports all the libs libs on linux. It's not much of hassle if we
update libs only when we need this (meaning not just to be on a leading
edge with brand-new libs).

Dropping 32bit windows builds would mean we're dropping atom support as
well? It might be still useful to be able to run blender on a netbooks i'd
say. Also, you might want to use PAE on 32bit platform because of some
better load balance and so.


On Fri, Dec 6, 2013 at 12:07 AM, Thomas Dinges <blender at dingto.org> wrote:

> Hi Mitchell,
> this is strange, maybe its due to some compiler flags?
>
> Maybe Visual Studio 2013 doesn't suffer from this, otherwise it would be
> bad. Needs investigation.
>
> Best regards,
> Thomas
>
> Am 05.12.2013 18:10, schrieb Mitchell Stokes:
> > The last time I checked, vc11 created slower Blender builds than vc9 for
> > the game engine. Not that I would like to stick to vc9, but vc11 isn't
> > always faster. For a specific example, I've found OpenMP to be rather
> slow.
> > It's been a while since I last ran some tests, but I seem to remember the
> > difference being at least 20%.
> >
> > --Mitchell Stokes
>
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-- 
With best regards, Sergey Sharybin
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