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, gentoo devs
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 mind
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 mechanism
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
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?
No
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
--- 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
flags and my
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
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 packages
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
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/CFLAGS#-O2_or_-O3.3F).
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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
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
--- 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 inlining
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]
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 recover
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
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 damage was
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 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
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 out of HD
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.u'
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 + Xorg +
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 would do.
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 binaries but not that
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.
That
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 + glibc + OOo
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 escreveu:
**
· 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 much
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
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