Bo Ørsted Andresen wrote:
> On Wednesday 11 April 2007 12:56:43 Daniel Iliev wrote:
>
>> Sorry, I don't get it. Perhaps it is my poor English but I couldn't
>> understand two things:
>> - Is -O3 supported by Gentoo or not?
>>
>
> -O3 is supported by Gentoo.
>
>
>> - What's the special
Hi all..
I think what -O3 is not _dangerous_ when you know how to use, a few posts
ago someone mentioned not all of packages can be compiled using -O3, if I am
not wrong was GCC and OpenOffice.org.
The thing is: -O3 is not a _damage_ is an carefully flag to compile for some
packages..
In some w
On Wednesday 11 April 2007 12:56:43 Daniel Iliev wrote:
> Sorry, I don't get it. Perhaps it is my poor English but I couldn't
> understand two things:
> - Is -O3 supported by Gentoo or not?
-O3 is supported by Gentoo.
> - What's the special thing about Gentoo ebuilds that makes -O3 dangerous?
Em Quarta 11 Abril 2007 07:56, Daniel Iliev escreveu:
> Sorry, I don't get it. Perhaps it is my poor English but I couldn't
> understand two things:
> - Is -O3 supported by Gentoo or not?
Yes.
> - What's the special thing about Gentoo ebuilds that makes -O3 dangerous?
Nothing. O3 isn't dangero
Bo Ørsted Andresen wrote:
> On Wednesday 11 April 2007 11:39:50 Daniel Iliev wrote:
>
>> Exactly what kind of damage are you talking about? Don't you think if
>> there was a real problem with -O3, gentoo devs would have excluded it as
>> an option, especially when they have an easy to apply mech
On Wednesday 11 April 2007 11:39:50 Daniel Iliev wrote:
> Exactly what kind of damage are you talking about? Don't you think if
> there was a real problem with -O3, gentoo devs would have excluded it as
> an option, especially when they have an easy to apply mechanism for
> doing that (I have in mi
maxim wexler wrote:
>
> Too late. Damage done. I decided to go with the
> example make.conf which call the O3 level "decent".
>
>> --
>> gentoo-user@gentoo.org mailing list
>>
>>
>>
Exactly what kind of damage are you talking about? Don't you think if
there was a real problem with -O3, g
Em Terça 10 Abril 2007 19:03, Ryan Sims escreveu:
> On 4/10/07, Davi <[EMAIL PROTECTED]> wrote:
> > Em Terça 10 Abril 2007 17:15, Jesús Guerrero escreveu:
> > > El Tue, 10 Apr 2007 17:08:40 -0300
> > >
> > > Davi <[EMAIL PROTECTED]> escribió:
> > > > Em Terça 10 Abril 2007 16:56, Jesús Guerrero esc
On 4/10/07, Davi <[EMAIL PROTECTED]> wrote:
Em Terça 10 Abril 2007 17:15, Jesús Guerrero escreveu:
> El Tue, 10 Apr 2007 17:08:40 -0300
>
> Davi <[EMAIL PROTECTED]> escribió:
> > Em Terça 10 Abril 2007 16:56, Jesús Guerrero escreveu:
> > ** Thinking: rebuild all = all packages = kde + Xorg + glib
On Tue, 10 Apr 2007 20:45:04 +0100
Uwe Thiem <[EMAIL PROTECTED]> wrote:
> O3 binaries are larger than O2 binaries but not that much. So if you
> are about to be out of HD space with O3 binaries you will soon be out
> of it with O2 binaries as well. You will need more HD space either
> way.
>
> Th
On 10 April 2007, Jesús Guerrero wrote:
> El Tue, 10 Apr 2007 20:45:04 +0100
>
> Uwe Thiem <[EMAIL PROTECTED]> escribió:
> > > How can I rebuild my system with O2?? =P
> > >
> > > I've configured my system with O3 and the HD space is going out...
> > > =P
> >
> > O3 binaries are larger than O2 bina
Em Terça 10 Abril 2007 17:15, Jesús Guerrero escreveu:
> El Tue, 10 Apr 2007 17:08:40 -0300
>
> Davi <[EMAIL PROTECTED]> escribió:
> > Em Terça 10 Abril 2007 16:56, Jesús Guerrero escreveu:
> > > No, --newuse is for use flags. He need to rebuild ALL the packages.
> > > So, "emerge --emptytree world
El Tue, 10 Apr 2007 17:08:40 -0300
Davi <[EMAIL PROTECTED]> escribió:
> Em Terça 10 Abril 2007 16:56, Jesús Guerrero escreveu:
> > No, --newuse is for use flags. He need to rebuild ALL the packages.
> > So, "emerge --emptytree world" would do.
>
>
> ** Thinking: rebuild all = all packages = kde
Em Terça 10 Abril 2007 16:56, Jesús Guerrero escreveu:
> No, --newuse is for use flags. He need to rebuild ALL the packages. So,
> "emerge --emptytree world" would do.
** Thinking: rebuild all = all packages = kde + Xorg + glibc + OOo + ...
Humm... **
Well... I'm _very_ fine with -O3 flag... u.
El Tue, 10 Apr 2007 20:45:04 +0100
Uwe Thiem <[EMAIL PROTECTED]> escribió:
> >
> > How can I rebuild my system with O2?? =P
> >
> > I've configured my system with O3 and the HD space is going out...
> > =P
>
> O3 binaries are larger than O2 binaries but not that much. So if you
> are about to be
On Tue, 10 Apr 2007 16:10:40 -0300 Davi <[EMAIL PROTECTED]>
wrote:
> How can I rebuild my system with O2?? =P
>
> I've configured my system with O3 and the HD space is going out... =P
Change your CFLAGS to have -O2 instead of -O3 and then run
"emerge -e world". If you don't have enough space then
On Tuesday 10 April 2007 21:45:04 Uwe Thiem wrote:
> That said, you can rebuild your system to be O2 by editing /etc/make.conf
> (O3 -> O2) and the "--newuse" option for emerge. I don't think it's worth
> it. ;-)
You mean --emptytree.
--
Bo Andresen
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On 10 April 2007, Davi wrote:
> Em Terça 10 Abril 2007 16:01, Francisco Rivas escreveu:
> > Hi all.. Oh god.. well damage done, but you learn the lesson rigth?.. I
> > believe yes. Actually all the people in the forum learn the lesson...
> >
> > For the nex time remember use O2 :D
> > I hope the d
On 10 April 2007, maxim wexler wrote:
> --- Andrey Vul <[EMAIL PROTECTED]> wrote:
> > don't use -O3 unless you need _extreme_ performance
> > -O2 -finline-functions is close to -O3 but doesn't
> > use -fno-home-register
> > For toolchain, I just stick to -O2. For power-hungry
> > apps, I use -O2
>
Em Terça 10 Abril 2007 16:01, Francisco Rivas escreveu:
> Hi all.. Oh god.. well damage done, but you learn the lesson rigth?.. I
> believe yes. Actually all the people in the forum learn the lesson...
>
> For the nex time remember use O2 :D
> I hope the damage was not horrible.. and you can recov
Hi all.. Oh god.. well damage done, but you learn the lesson rigth?.. I
believe yes. Actually all the people in the forum learn the lesson...
For the nex time remember use O2 :D
I hope the damage was not horrible.. and you can recover all losted.
On 4/10/07, maxim wexler <[EMAIL PROTECTED]> wrot
--- Andrey Vul <[EMAIL PROTECTED]> wrote:
> don't use -O3 unless you need _extreme_ performance
> -O2 -finline-functions is close to -O3 but doesn't
> use -fno-home-register
> For toolchain, I just stick to -O2. For power-hungry
> apps, I use -O2
> -finline-functions
> glibc developer said that i
don't use -O3 unless you need _extreme_ performance
-O2 -finline-functions is close to -O3 but doesn't use -fno-home-register
For toolchain, I just stick to -O2. For power-hungry apps, I use -O2
-finline-functions
glibc developer said that inlining with gcc 4.2 screws up code, so on
the safe side,
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Francisco Rivas said the following on 2007-04-10 17:29:
| ...
| Certainly some package have a maximun optimisation. I really believe,
| the optimisation level is a very interesting thing bucause all depend of
| what you need and you have all power of
El Tue, 10 Apr 2007 07:29:26 -0700 (PDT)
maxim wexler <[EMAIL PROTECTED]> escribió:
>
> --- Francisco Rivas <[EMAIL PROTECTED]> wrote:
>
> > Hi all :D
> >
> > I think what "-march=your_arch -O2" it's enough,
> > because -O3 it's highest
> > but have some details
> > (http://gentoo-wiki.com/CFLA
Hi all..
Certainly some package have a maximun optimisation. I really believe, the
optimisation level is a very interesting thing bucause all depend of what
you need and you have all power of your system, only gentoo can give you
that.
it's very good to see a server compiling most of the applica
On Tuesday 10 April 2007 16:58:47 Uwe Thiem wrote:
> On 10 April 2007, maxim wexler wrote:
> > Interesting. Just completed emerge -uvDN world using
> > the "-03 -pipe" cflags in make.conf for the PIII arch.
> > I noticed as the output scrolled by that the flags I
> > set were being used for all pac
On 10 April 2007, maxim wexler wrote:
> Interesting. Just completed emerge -uvDN world using
> the "-03 -pipe" cflags in make.conf for the PIII arch.
> I noticed as the output scrolled by that the flags I
> set were being used for all packages *except* gcc
> which used "-02 -pipe".
Some packages
--- Francisco Rivas <[EMAIL PROTECTED]> wrote:
> Hi all :D
>
> I think what "-march=your_arch -O2" it's enough,
> because -O3 it's highest
> but have some details
> (http://gentoo-wiki.com/CFLAGS#-O2_or_-O3.3F). My
> guess is "-march=your_arch
> -O2". I was compiled my entire system with those
>
Hi all :D
I think what "-march=your_arch -O2" it's enough, because -O3 it's highest
but have some details
(http://gentoo-wiki.com/CFLAGS#-O2_or_-O3.3F). My guess is "-march=your_arch
-O2". I was compiled my entire system with those flags and my applications
no matter which have a very good functi
· maxim wexler <[EMAIL PROTECTED]>:
> One suggests using -O3 -pipe, the other, -O2 without
> the pipe.
The resulting binaries of a -O2 -pipe compile will be
the same as those of a -O2 (no pipe) compile.
See
http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Overall-Options.html#index-pipe-81
> How m
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