Re: KDE compiled for i686
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Hello all,
The other point for compilation is stability. I have something weird on my
system that causes kde to crash VERY regulary, if I compile my own set, this
goes away.
As for compiling it can be as simple as issuing the command
apt-get source --compile <package name>
Regards,
Stephen.
On Sunday 13 May 2001 5:32 pm, Oswald Buddenhagen wrote:
> > I know that from 386 upto early pentiums there were some basic
> > additions to the instruction set so re-compiling should get a bit
> > better performance because gcc can select faster instructions.
>
> about every new generation of processors brought a few new instructions/
> instruction classes. the p2-series have most notably conditional moves,
> which gcc can use.
>
> > But I thought that to take advantage of MXX and PIII's
> > floating-point MMX instructions would take specifically written code
> > to see any kind of improvement.
>
> yes, when you want to use these highly specialized instructions, you should
> use libraries, which are hand-written in assembler.
>
> > Can/Does gcc optimise for use of the MMX and other 3D-type
> > instructions?
>
> no, afaik.
>
> > I would have thought that with the ridiculous clock speeds in use
> > now that the minor increases gained by compiling for Pentium-level
> > over 1386 would then be lost in memory-access times. Would my two
> > PII 350's get noticeably better performance on a 100Mhz Memory bus
> > if I recompiled my system?
>
> you can expect to get no noticable speed gain. the executables become
> a tiny bit smaller (because of the conditional moves, etc.), but this
> is mostly negligible, too.
> imo, it's not worth the effort unless you don't want to use packages
> at all.
> you should do this only for very time-critical programs, but not for
> a whole desktop.
>
> > As far as compiling, is it fairly easy to compile source-deb's?
>
> yes, see the other mails.
>
> best regards
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