On 21:36 Fri 18 Feb , Walter Dnes wrote:
> On Fri, Feb 18, 2005 at 10:55:51AM -0600, Will Clifton wrote
> > I have a question about my make.conf for my new P4 Prescott 3.2. Before I
> > get
> > too busy installing I want to set my CFLAGS to get the most out of my chip.
> > Is
>
> -O3 is a
On Friday 18 February 2005 08:36 pm, "Walter Dnes" <[EMAIL PROTECTED]>
wrote:
> On Fri, Feb 18, 2005 at 10:55:51AM -0600, Will Clifton wrote
>
> > I have a question about my make.conf for my new P4 Prescott 3.2.
> > Before I get too busy installing I want to set my CFLAGS to get the
> > most out o
On Fri, Feb 18, 2005 at 10:55:51AM -0600, Will Clifton wrote
> I have a question about my make.conf for my new P4 Prescott 3.2. Before I get
> too busy installing I want to set my CFLAGS to get the most out of my chip. Is
> the following too much? I'm not a programmer, but this is what I got out of
On Fri, 18 Feb 2005 10:55:51 -0600, Will Clifton <[EMAIL PROTECTED]> wrote:
> Any opinions are appreciated.
>
> cflags=-O3 -mcpu=pentium4 -march=pentium4 -mmmx -msse -m3dnow
> -fomit-frame-pointer -pipe
> chost=i686-pc-linux-gnu
> makejopts="-j3" ( because of the 2 virtuals cpus?? )
>
At least r
On Friday 18 February 2005 09:06, Karsten Baumgarten wrote:
> Will Clifton wrote:
> | Also, will I be wanting to enable SMP support in my kernel? I read that
> | somewhere too.
>
> You definitely want SMP (see above).
You also need SMT (that's the HyperThreading part)
--
t3h 3l3ctr0n3rd <[EMAIL
On 10:55 Fri 18 Feb , Will Clifton wrote:
You can use march=pentium4 and -msse3 to use the SSE3 instruction set
(although there isn't much code around using it). I've been using this
quite successfully for a while.
Also you should enable SMP support in the kernel config.
Cheers,
Ben
> I have
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Will Clifton wrote:
| I have a question about my make.conf for my new P4 Prescott 3.2.
Before I get
| too busy installing I want to set my CFLAGS to get the most out of my
chip. Is
| the following too much? I'm not a programmer, but this is what I got
o
I have a question about my make.conf for my new P4 Prescott 3.2. Before I get
too busy installing I want to set my CFLAGS to get the most out of my chip. Is
the following too much? I'm not a programmer, but this is what I got out of
reading some forum posts and man gcc. I also read the setting the
Ryan Sims wrote:
Another question, somewhat related: I saw a post re using
"LDFLAGS="-Wl,-O1" in the make.conf file. However, the gentoo devs
seem to go a little mad whenever they run into this idea, so I quit
that practice. I'm a little unclear on a) what exactly that does and
b) why it's harmf
On Wed, 26 Jan 2005 11:34:58 +0800, William Kenworthy
<[EMAIL PROTECTED]> wrote:
> Step 1, take everything in the forums and what others say including me
> with a large dose of scepticism: if you want the truth, test it
> yourself, and look up the man pages for each option and see what it
> really
On Thursday 27 January 2005 04:36, Nicolas Bailey wrote:
> Sorry to barge in, but this got me thinking--
>
> My make.conf has a warning about march=pentium4 generating bad sse2
> instructions or somesuch. I've seen an example using python to
> demonstrate this. For this reason, quite some time ag
Sorry to barge in, but this got me thinking--
My make.conf has a warning about march=pentium4 generating bad sse2
instructions or somesuch. I've seen an example using python to
demonstrate this. For this reason, quite some time ago, I set my
march to pentium3 and have left it. Is it safe at thi
Hi,
On Wednesday 26 January 2005 05:51, Nick Smith wrote:
>
> then on the forums, people are saying that sse=387 is bad to use, and
> some say ffast-math is bad as well. i mean how can someone decide what
> to use when everyone has their own opinions.
First, read man gcc.
They say a lot of thi
On Tuesday 25 January 2005 09:34 pm, William Kenworthy <[EMAIL PROTECTED]>
wrote:
> Step 1, take everything in the forums and what others say including me
> with a large dose of scepticism.
This is true. Some people are using CFLAGS that are just crazy (to me),
but swear by them. Others will h
Nick Smith wrote:
then on the forums, people are saying that sse=387 is bad to use
As far as I'm aware the register allocator in gcc isn't smart enough to
handle -mfpmath=sse,387 effectively yet (even in the forth-coming gcc
4.0). It causes sse variables to be stored in 387 registers and
vice-v
Step 1, take everything in the forums and what others say including me
with a large dose of scepticism: if you want the truth, test it
yourself, and look up the man pages for each option and see what it
really does - not what the forums say as people do not always quote the
source correctly.
For i
i'm sorry to bring this up, im sure its been discussed countless times
on here, but i keep getting conflicting information from everywhere i
look, i was wondering if some people could clear up somethings for me.
first i found this info on the wiki, i also have a p4 2.8Ghz w/HT
running a mail serve
Thanks to all. I'll try -O2 or -O3 and see what is better
Sergey Berezka
- Original Message -
From: "Brendan Sullivan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, January 20, 2004 10:00 PM
Subject: Re: [gentoo-user] CFLAGS
> I can't
It's an O and not a zero ;-)
What you shuld write is something like:
-march=athlon-xp -O3 -pipe -fomit-frame-pointer
On Tue, 2004-01-20 at 12:33, Sergey Berezka wrote:
> I have Athlon XP+ 1800 CPU. I type flags : -march=athlon-xp -03 -pipe
> -fomit-frame-pointer in the make.conf.
> Now, when i co
On Tue, 20 Jan 2004 17:33:09 +0200
"Sergey Berezka" <[EMAIL PROTECTED]> wrote:
> I have Athlon XP+ 1800 CPU. I type flags : -march=athlon-xp -03 -pipe
> -fomit-frame-pointer in the make.conf.
just to add my 2 u.s. cents (or one G.Bush dollar) worth, I used those
flags (with the letter O, not the
On Tue, 20 Jan 2004 13:26:26 -0800, Brendan Sullivan muttered:
> k, maybe not header files, i'm not a programmer so i dont really know my
> terminology...but it's something to do w/ the code being inline, and
> having to jump out to get other information.
Better explanation:
-O3 (as opposed to -O
k, maybe not header files, i'm not a programmer so i dont really know my
terminology...but it's something to do w/ the code being inline, and
having to jump out to get other information.
maybe someone can explain better than me... hope so ;)
Brendan
On Tue, 2004-01-20 at 15:22, Andrew Farmer wro
On Tue, 20 Jan 2004 12:00:15 -0800, Brendan Sullivan muttered:
> I can't help you find that info...but i do know (at least in laymans
> terms) what the basic differences of -O2 and -O3 are.
>
> The -O2 option when compiling, puts references to header files in the
> locations where they are called.
On Tue, 2004-01-20 at 16:33, Sergey Berezka wrote:
> I have Athlon XP+ 1800 CPU. I type flags : -march=athlon-xp -03 -pipe
> -fomit-frame-pointer in the make.conf.
you typed a zero in "-03", it should "-O3" (with the "o" as in "option")
> Now, when i compile any program , all the time line : unre
I can't help you find that info...but i do know (at least in laymans
terms) what the basic differences of -O2 and -O3 are.
The -O2 option when compiling, puts references to header files in the
locations where they are called.
The -O3 option, actually pulls the sections out of the header files, an
I saw that somewhere too.
Can't find it either!
Mike
On Tuesday 20 January 2004 01:13 pm, Alan wrote:
> On Tue, Jan 20, 2004 at 05:33:09PM +0200, Sergey Berezka wrote:
> > I have Athlon XP+ 1800 CPU. I type flags : -march=athlon-xp -03 -pipe
> > -fomit-frame-pointer in the make.conf. Now, when
On Tue, Jan 20, 2004 at 05:33:09PM +0200, Sergey Berezka wrote:
> I have Athlon XP+ 1800 CPU. I type flags : -march=athlon-xp -03 -pipe
> -fomit-frame-pointer in the make.conf.
> Now, when i compile any program , all the time line : unrecognized option '-03'
> shows up.
> What is the problem ?
A
This is really '-0(zero)3' not '-O3'
- Original Message -
From: "KamaolaKid" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, January 20, 2004 5:37 PM
Subject: Re: [gentoo-user] CFLAGS
> Sergey Berezka wrote:
> > I have Athlo
Change 0 (zero) for O (vowel)
El Martes, 20 de Enero de 2004 16:33, Sergey Berezka escribió:
> I have Athlon XP+ 1800 CPU. I type flags : -march=athlon-xp -03 -pipe
> -fomit-frame-pointer in the make.conf. Now, when i compile any program ,
> all the time line : unrecognized option '-03' shows up.
Sergey Berezka wrote:
I have Athlon XP+ 1800 CPU. I type flags : -march=athlon-xp -03 -pipe
-fomit-frame-pointer in the make.conf.
Now, when i compile any program , all the time line : unrecognized
option '-03' shows up.
What is the problem ?
Make sure it is 'O' as in the letter O, not 0 as in ze
I think you want "-O3", not "-03". Is an "O" letter, not a "0" number.
On Tue, 2004-01-20 at 09:33, Sergey Berezka wrote:
> I have Athlon XP+ 1800 CPU. I type flags : -march=athlon-xp -03 -pipe
> -fomit-frame-pointer in the make.conf.
> Now, when i compile any program , all the time line : unrecog
It's -O3 not zero-3 !!!
Sergey Berezka wrote:
I have Athlon XP+ 1800 CPU. I type flags : -march=athlon-xp -03 -pipe
-fomit-frame-pointer in the make.conf.
Now, when i compile any program , all the time line : unrecognized
option '-03' shows up.
What is the problem ?
--
[EMAIL PROTECTED] maili
I have Athlon XP+ 1800 CPU. I type flags :
-march=athlon-xp -03 -pipe -fomit-frame-pointer in the make.conf.
Now, when i compile any program , all the time line
: unrecognized option '-03' shows up.
What is the problem
?
Van Eps, Nathan D. (James Tower) wrote:
A lot of people seem to not use "-O3", because it can cause worse
performance in some situations. I'm gonna leave it in my "make.conf" till
someone (maybe me, if I get some free time) shows that it causes worse
performance on average. Because that is really w
A lot of people seem to not use "-O3", because it can cause worse
performance in some situations. I'm gonna leave it in my "make.conf" till
someone (maybe me, if I get some free time) shows that it causes worse
performance on average. Because that is really what the flags in "make.conf"
should be g
Ok, I am contemplating on converting my Windows 2003 server into a Gentoo
Linux one instead.
The system is a Dual Pentium II Xeon 400 1MB Cache w/ 768MB RAM. I would
like it optimized for as much speed as possible.
My laptop's CFLAGS are as follows:
CFLAGS="-march=pentium3 -msse -mfpmath=sse -mm
Michael Schreckenbauer <[EMAIL PROTECTED]> writes:
> Am Samstag, 29. November 2003 16:31 schrieb Ulrich Rhein:
>> Jason Stubbs <[EMAIL PROTECTED]> writes:
>> > On Saturday 29 November 2003 22:25, Ulrich Rhein wrote:
>> >> Jason Stubbs <[EMAIL PROTECTED]> writes:
>> >> > The biggest improvement in
Hi,
Am Samstag, 29. November 2003 16:31 schrieb Ulrich Rhein:
> Jason Stubbs <[EMAIL PROTECTED]> writes:
> > On Saturday 29 November 2003 22:25, Ulrich Rhein wrote:
> >> Jason Stubbs <[EMAIL PROTECTED]> writes:
> >> > The biggest improvement in performance will come by adding
> >> > -fomit-frame-p
On Sunday 30 November 2003 00:31, Ulrich Rhein wrote:
> Jason Stubbs <[EMAIL PROTECTED]> writes:
> > On Saturday 29 November 2003 22:25, Ulrich Rhein wrote:
> >> Jason Stubbs <[EMAIL PROTECTED]> writes:
> >> > The biggest improvement in performance will come by adding
> >> > -fomit-frame-pointer to
Jason Stubbs <[EMAIL PROTECTED]> writes:
> On Saturday 29 November 2003 22:25, Ulrich Rhein wrote:
>> Jason Stubbs <[EMAIL PROTECTED]> writes:
>> > The biggest improvement in performance will come by adding
>> > -fomit-frame-pointer to your flags.
>> That won't actually change anything but remove t
Jason Stubbs wrote:
The biggest improvement in performance will come by adding
-fomit-frame-pointer to your flags.
I must say there definately is a very noticable improvement to system
responsiveness. It may only remove three instructions from some function
calls, but it frees up a register or t
On Saturday 29 November 2003 22:28, Ulrich Rhein wrote:
> Jason Stubbs <[EMAIL PROTECTED]> writes:
> > I've found with my AthlonXP that when using -Os just about everything
> > runs much slower. Most noticably was kmail which took about 3 times as
> > long to clean up the mail folders on exit. Pret
On an athlon Tbird with 1G ram, -Os is very very slow compared to -O2
(measured). -Os seems to be better on (very?) low memory machines, but
I have only measured on the athlon and am going on others for that info.
-fomit-frame-pointer gave a slight, but measurable improvement - hardly
worth the e
On Saturday 29 November 2003 22:25, Ulrich Rhein wrote:
> Jason Stubbs <[EMAIL PROTECTED]> writes:
> > The biggest improvement in performance will come by adding
> > -fomit-frame-pointer to your flags.
>
> That won't actually change anything but remove three instructions from
> some function calls.
Jason Stubbs <[EMAIL PROTECTED]> writes:
> I've found with my AthlonXP that when using -Os just about everything runs
> much slower. Most noticably was kmail which took about 3 times as long to
> clean up the mail folders on exit. Pretty much everything ran sluggish
> though.
It's *very* unlik
Jason Stubbs <[EMAIL PROTECTED]> writes:
> The biggest improvement in performance will come by adding
> -fomit-frame-pointer to your flags.
That won't actually change anything but remove three instructions from
some function calls. The resulting performance improvement is
practically insignifica
Dennis Robertson wrote:
Is that d O h? I wonder why it accepted -03? Oh well, I'll know for next
time. Thanks, Jason.
Really strange, i dunno of any option beginning wit a digit..
BTW: here's an overview about all options (latest GCC)
http://gcc.gnu.org/onlinedocs/gcc-3.3.2/gcc/Option-Summary.htm
Is that d O h? I wonder why it accepted -03? Oh well, I'll know for next
time. Thanks, Jason.
- Original Message -
From: "Jason Stubbs" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, November 29, 2003 11:59 AM
Subject: Re: [gentoo-user] CFLAGS
>
On Saturday 29 November 2003 10:39, Dennis Robertson wrote:
> I reinstalled yesterday and gcc refused to recognise -02 as an option. I
> was forced to use -03, which went OK. Then kde-base/kdelibs-3.1.4 failed
> (function kde_src_compile died) so I share the sentiment about whether its
> worth it.
ssage -
From: "Jason Stubbs" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, November 28, 2003 11:06 PM
Subject: Re: [gentoo-user] CFLAGS
> On Saturday 29 November 2003 05:57, Vano Beridze wrote:
> > I installed gentoo from stage 1 (took 1 day) with the fo
On Friday 28 November 2003 22:19, Andrew Gaffney wrote:
> Vano Beridze wrote:
> > Hello
> >
> > I have
> > AMD Athlon XP 2400+, 1GB RAM
> >
> > I installed gentoo from stage 1 (took 1 day) with the following settings
> >
> > CHOST="i686-pc-linux-gnu"
> > CFLAGS="-march=athlon-xp -O3"
> > CXXFLAGS="
031128 Vano Beridze wrote:
> I have AMD Athlon XP 2400+, 1GB RAM
> I installed gentoo from stage 1 (took 1 day) What a surprise:
> On the same machine with RedHat 9 (i386 packages)
> NetBeans 3.5.1(sun jdk 1.4.2_02) runs faster.
> I switched to gentoo because I wanted faster and customized system.
Vano Beridze wrote:
Hello
I have
AMD Athlon XP 2400+, 1GB RAM
I installed gentoo from stage 1 (took 1 day) with the following settings
CHOST="i686-pc-linux-gnu"
CFLAGS="-march=athlon-xp -O3"
CXXFLAGS="-march=athlon-xp -O3"
What a surprise:
On the same machine with RedHat 9 (i386 packages)
NetBe
On Fri, 2003-11-28 at 20:57, Vano Beridze wrote:
> I switched to gentoo because I wanted faster and customized system.
Gentoo is highly customizable. But that does not guarentee a faster
system. The intricate web of hardware spec, application, comuter usage
and gcc flags is a complex one.
There ha
On Saturday 29 November 2003 05:57, Vano Beridze wrote:
> I installed gentoo from stage 1 (took 1 day) with the following settings
>
> CHOST="i686-pc-linux-gnu"
> CFLAGS="-march=athlon-xp -O3"
> CXXFLAGS="-march=athlon-xp -O3"
>
> On the same machine with RedHat 9 (i386 packages)
> NetBeans 3.5.1(s
Hello
I have
AMD Athlon XP 2400+, 1GB RAM
I installed gentoo from stage 1 (took 1 day) with the following settings
CHOST="i686-pc-linux-gnu"
CFLAGS="-march=athlon-xp -O3"
CXXFLAGS="-march=athlon-xp -O3"
What a surprise:
On the same machine with RedHat 9 (i386 packages)
NetBeans 3.5.1(sun jdk 1.
Jernej Zidar wrote:
> 2. Is there a list of recommended CLAGS for a P4 desktop system?
This is geared towards an AthlonXP, interesting reading all the same
http://home.comcast.net/~jcunningham63/linux/GCC_Optimization.html
Rick
Kitty5 NewMedia http://Kitty5.com
POV-Ray News & Resources http://
On 2003.10.23 09:35, Jernej Zidar wrote:
Hi all.
I have two questions regarding CFLAGS:
1. Is there a list of all CFLAGS that can be set?
check gcc's man page or http://gcc.gnu.org/onlinedocs/ for your version
of gcc.
2. Is there a list of recommended CLAGS for a P4 desktop system?
i compiled m
Hi all.
I have two questions regarding CFLAGS:
1. Is there a list of all CFLAGS that can be set?
2. Is there a list of recommended CLAGS for a P4 desktop system?
My aim is to make my system as fast as possible and not make it unbootable.
Thanks.
Jernej Zidar
--
[EMAIL PROTECTED] mailing list
Hi!
Recently I switched to Gentoo and now I'd like to know what are recommended
flags for my i686 Celeron (besides those on the freehacker's site)?
bash-2.05b# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Celeron (C
> I've found -Os faster.
have you any benchmarks to show this, or does it just feel faster?
While I am on the subject, what do people suggest for benchmarking?
Rick
Kitty5 NewMedia http://Kitty5.com
POV-Ray News & Resources http://Povray.co.uk
TEL : +44 (01270) 501101 - ICQ : 15776037
PGP Publ
Paul Fraser wrote:
> I'm using "-march=pentium3 -O3 -pipe -mmmx -msse -fomit-frame-pointer
> -fforce-addr -falign-functions=4 -fprefetch-loop-arrays" and I'm yet to
> run into any problems.
I've found -Os faster. I'm rebuilding the whole system (including kernel) with
-Os
Best regards,
Norberto
On Tuesday 30 September 2003 08:29, Rick [Kitty5] wrote:
> Hi all,
>
> Any recommendations for system wide CFLAGS for a P3?
>
> Rick
-march=pentium3 -Os -fomit-frame-pointer -msse -mfpmath=sse
--
Conclusions
In a straight-up fight, the Empire squashes the Federation like a bug. Even
with its n
I'm using "-march=pentium3 -O3 -pipe -mmmx -msse -fomit-frame-pointer
-fforce-addr -falign-functions=4 -fprefetch-loop-arrays" and I'm yet to
run into any problems.
On Tue, 2003-09-30 at 18:29, Rick [Kitty5] wrote:
> Hi all,
>
> Any recommendations for system wide CFLAGS for a P3?
>
> Rick
>
>
Hi all,
Any recommendations for system wide CFLAGS for a P3?
Rick
Kitty5 NewMedia http://Kitty5.com
POV-Ray News & Resources http://Povray.co.uk
TEL : +44 (01270) 501101 - ICQ : 15776037
PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA
--
[EMAIL PROTECTED] mailin
On Tue, 26 Aug 2003 19:22:20 -0400
b stephen harding <[EMAIL PROTECTED]> wrote:
> On Wed, 20 Aug 2003 17:30:09 -0400
> Luis Morales <[EMAIL PROTECTED]> wrote:
>
> > Now the others flag mmx, mmx2, 3dnow, 3dnow2, etc you must be
> > setting
> >
> which AMD processors use the 3dnow2 instruction se
On Wed, 20 Aug 2003 17:30:09 -0400
Luis Morales <[EMAIL PROTECTED]> wrote:
> Now the others flag mmx, mmx2, 3dnow, 3dnow2, etc you must be setting
>
which AMD processors use the 3dnow2 instruction set?
--
bruce
pgp0.pgp
Description: PGP signature
On Thursday 21 August 2003 03:37, Meka[ni] wrote:
> I'm using "-O3 -march=pentium2 -mmmx -ffast-math -fomit-frame-pointer
> -pipe" as CFLAGS (and CXXFLAGS), and I wonder if -mmmx may be omited. The
> actual question is, does -march=xxx includes mmx, mmx2, 3dnow, 3dnow2, sse
> and sse2 for app
Take a look here
http://www.freehackers.org/gentoo/gccflags/flag_gcc3opt.html
Now the others flag mmx, mmx2, 3dnow, 3dnow2, etc you must be setting
on USE clausule.
Regards,
LM
Meka[ni] wrote:
I'm using "-O3 -march=pentium2 -mmmx -ffast-math -fomit-frame-pointer -pipe"
as CFLAGS
(a
I'm using "-O3 -march=pentium2 -mmmx -ffast-math -fomit-frame-pointer -pipe"
as CFLAGS
(and CXXFLAGS), and I wonder if -mmmx may be omited. The actual question is, does
-march=xxx includes mmx, mmx2, 3dnow, 3dnow2, sse and sse2 for appropriate arch? And
what
to use as CFLAGS for my Celero
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