[kde-solaris] Pkgtools, 64-bit, etc.

[Stefan Teleman]

Hi!

To instruct the Sun compiler to produce UltraSPARC specific optimized 
instructions, you can use one of the following flags:

for 32-bit:
-dalign -xprefetch-yes -xtarget=ultra2 -xarch=v8plus
-dalign -xprefetch-yes -xtarget=ultra2 -xarch=v8plusa

for 64-bit:
-dalign -xprefetch-yes -xtarget=ultra2 -xarch=v9
-dalign -xprefetch-yes -xtarget=ultra2 -xarch=v9a
-dalign -xprefetch-yes -xtarget=ultra3 -xarch=v9b (works only on 
UltraSPARC III)

I agree that it is unlikely that 64-bit will produce any significant 
performance improvement.

As a side note, i have built all the KDE packages, including QT and 
the additional libraries (SDL, mng, etc) in SUNWkderequired with 
Forte 7, with -dalign -xprefetch-yes -xtarget=ultra2 -xarch=v8plus.

--Stefan

-----

On Friday 25 April 2003 19:04, Lars Tunkrans wrote:
> Hello,
> t
>      I have spent some time building  Subsystems needed by KDE3.x 
> on SPARC/SOLARIS9
>   using Forte7 / studio7 .
>
>       libpng, liblcms, libmng,  samba , pilotlink, libmal, 
> libbzip2, libz,  SDL,  ....
>    all 32-bit.
>
>    Problem with 64 bit binaries seems to bee that  you need to have
> all the libraries that you intend to link
>    with  in 64 bit version.  Or it's probable that my knowledge of
> these things is too limited.
>   anyway  when I tried to build 64-bit binaries/libraries  and the
> Build needs to link with another
>   library that exists only  in 32.bit version the linking fails.
>
>     I have built  KDE. 3.1.1 with Gcc  3.2.2  on solaris  9   with
>  Xrender.
>     this  was almost automatic  as soon as I had solaris 9  12/02
>  installed  plus the latest Xsun Patch
>     for Xrender .
>
>     Why  do you guys  want 64 bit mode.   It is unlikley that it
> would yield  any  greater amount of performance.
>      I belive that greater performance benefits could be had from
> utilising such things  as the
>      SUN Performance library  and the  SUN Media Libraries. 
> Actually the guys at Chalmers institute
>      of technology here in sweden who produces the XinePlugin   for
> NOATUN  in KDE Miultimedia suite
>     has built a Media Library interface.  Then   there is the   "
> cc -lfast "     linking option  , not the same as
>     "cc -fast "     that has optimised arithmetic routins for
> specific proccessor types.
>      How can we  produce KDE binaries that  uses the VIS-
> instructionset optimally  ?
>
>      To try to discern these areas  will probably  yield  more
> benefit than just a recompile in 64 bit.
>
>       64-bit mode is as far as I understand for building apps with
> huge datasets .  ( > 4 GB )
>
>   //Lars
>
> Stefan Teleman wrote:
> >So, i am basically taking an opinion poll :-). Please vote for
> > either Solaris 8 64-bit (should take 4-5 weeks) or Solaris 9 with
> > Xrender (don't really know how long it would take, there are too
> > many variables, probably a couple of months). I wish i could do
> > it faster, but, unfortunately, i can only work on this evenings
> > and weekends.
>
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-- 
Stefan Teleman          'Nobody Expects the Spanish Inquisition'
steleman at nyc.rr.com                          -Monty Python