On 6/14/05, Raphael Melo de Oliveira Bastos Sales
<[EMAIL PROTECTED]> wrote:
> I think it is better to set sse on a USE flag so if a program is made
> to use them (i.e. X.org), it can, but it doesn't affect the other
> packages that weren't made with them in mind.
And, directly from the X.org ebui
That option (-mfpmath=sse,387) was deemed unstable on the gcc page
that Bruno posted on this thread. Quoting:
"Use this option with care, as it is still experimental, because the
GCC register allocator does not model separate functional units well
resulting in instable performance. "
I think it is
Mark Shields wrote:
Oh, Raphael, concerning what you said: "By the way, look for something about using sse
instruction for math. It speeds things up a bit.". I think you're speaking of
"-mfpmath=sse".
You might want to specify -mfpmath=sse,387 instead. SSE is capable of
faster, more precis
I believe the way mtune and march is like this:
Think of mtune as 'optional' tuning and march as 'required' tuning,
meaning: compile for athlon-xp with the mtune option, it will run
better on an athlon xp but will also run in i386 (just slower),
whereas march will compile for athlon-xp and will on
Thanks ;)
2005/6/13, Mark Shields <[EMAIL PROTECTED]>:
> Oh, Raphael, concerning what you said: "By the way, look for something
> about using sse
> instruction for math. It speeds things up a bit.". I think you're
> speaking of "-mfpmath=sse".
>
> On 6/13/05, Mark Shields <[EMAIL PROTECTED]> wro
On Monday 13 June 2005 21:53, Allan Spagnol Comar wrote:
> I was looking over the internet for some CFLAGS for athlon XP and I
> didn't found any. Does someone knows what are the best C and CXXFLASG
> for athlon XP ?
march=athlon-xp
-mmmx
-msse
-O2
-fomit-frame-pointer
-pipe
why mmx and sse?
bec
Oh, Raphael, concerning what you said: "By the way, look for something
about using sse
instruction for math. It speeds things up a bit.". I think you're
speaking of "-mfpmath=sse".
On 6/13/05, Mark Shields <[EMAIL PROTECTED]> wrote:
> Yes, as long as it's the Socket A version. Not sure about the
Yes, as long as it's the Socket A version. Not sure about the socket
754 version, which may (or may not) use amd64.
On 6/13/05, Raphael Melo de Oliveira Bastos Sales
<[EMAIL PROTECTED]> wrote:
> By the way, Sempron accepts athlon-xp, right?
>
> 2005/6/13, Bruno Lustosa <[EMAIL PROTECTED]>:
> > O
By the way, Sempron accepts athlon-xp, right?
2005/6/13, Bruno Lustosa <[EMAIL PROTECTED]>:
> On 6/13/05, Colin <[EMAIL PROTECTED]> wrote:
> > You'll want the usual -O2 -pipe -fomit-frame-pointer, but also use
> > -march=athlon-xp. If your processor supports MMX, 3DNow!, SSE or
> > SSE2, add thos
You're welcome. By the way, look for something about using sse
instruction for math. It speeds things up a bit. And put mmx and sse
in you USE variable
2005/6/13, Allan Spagnol Comar <[EMAIL PROTECTED]>:
> thak you all
>
> On 6/13/05, Raphael Melo de Oliveira Bastos Sales
> <[EMAIL PROTECTED]> wr
On 6/13/05, Colin <[EMAIL PROTECTED]> wrote:
> You'll want the usual -O2 -pipe -fomit-frame-pointer, but also use
> -march=athlon-xp. If your processor supports MMX, 3DNow!, SSE or
> SSE2, add those flags in as well.
Fine, but no need to add mmx, 3dnow!, sse or sse2, as these are
implied by -marc
thak you all
On 6/13/05, Raphael Melo de Oliveira Bastos Sales
<[EMAIL PROTECTED]> wrote:
> I know the safe ones:
>
> -march=athlon-xp -O3 -fomit-frame-pointer -pipe
>
> You can use -02 if you don't want to take much time in compiling and
> in some cases the binary is actually faster than -O3 (I
I know the safe ones:
-march=athlon-xp -O3 -fomit-frame-pointer -pipe
You can use -02 if you don't want to take much time in compiling and
in some cases the binary is actually faster than -O3 (I heard this
from others, I'm testing it now).
Also -pipe is only supposed to make compile time faster,
On 6/13/05, Allan Spagnol Comar <[EMAIL PROTECTED]> wrote:
> I was looking over the internet for some CFLAGS for athlon XP and I
> didn't found any. Does someone knows what are the best C and CXXFLASG
> for athlon XP ?
You'll want the usual -O2 -pipe -fomit-frame-pointer, but also use
-march=athlo
I was looking over the internet for some CFLAGS for athlon XP and I
didn't found any. Does someone knows what are the best C and CXXFLASG
for athlon XP ?
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