Re: [gentoo-user] -mtune for P4M (dothan)
On 11/2/05, Richard Fish <[EMAIL PROTECTED]> wrote: > Qian Qiao wrote: > > >After going through the GCC docs, i've decided to use: -march=pentium3 > >-mmmx -msse -msse2. > > > > > > I don't really recommend that. A few things may have compile errors if > you globally use -mmmx, -msse, and -msse2. Instead, I suggest you set > the mmx and sse USE flags, and let portage add those CFLAGS for those > packages where it actually makes a difference and is supported. Thx for the tip, i've taken them out, and added use flags accordingly. > Also, don't forget -fomit-frame-pointer and -pipe. I've got those 2 flags already. :) -- Joe -- There are 3 kinds of people in the world: Those who can count, and those who can't. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] -mtune for P4M (dothan)
Luca Botti wrote: i would suggest the move to gcc3.4. Apart from architecture support, you will get an ABI C++ compatibility with gcc4. Alle Wednesday 2 November 2005 14:35, Qian Qiao ha scritto: After going through the GCC docs, i've decided to use: -march=pentium3 -mmmx -msse -msse2. -- Joe -- There are 3 kinds of people in the world: Those who can count, and those who can't. actually there are 10 kinds of people in this world one kind can understand binary one cant LOL -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] -mtune for P4M (dothan)
Qian Qiao wrote: After going through the GCC docs, i've decided to use: -march=pentium3 -mmmx -msse -msse2. I don't really recommend that. A few things may have compile errors if you globally use -mmmx, -msse, and -msse2. Instead, I suggest you set the mmx and sse USE flags, and let portage add those CFLAGS for those packages where it actually makes a difference and is supported. Also, don't forget -fomit-frame-pointer and -pipe. -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] -mtune for P4M (dothan)
i would suggest the move to gcc3.4. Apart from architecture support, you will get an ABI C++ compatibility with gcc4. Alle Wednesday 2 November 2005 14:35, Qian Qiao ha scritto: > After going through the GCC docs, i've decided to use: -march=pentium3 > -mmmx -msse -msse2. > > -- Joe > > -- > There are 3 kinds of people in the world: > Those who can count, and those who can't. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] -mtune for P4M (dothan)
After going through the GCC docs, i've decided to use: -march=pentium3 -mmmx -msse -msse2. -- Joe -- There are 3 kinds of people in the world: Those who can count, and those who can't. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] -mtune for P4M (dothan)
On 11/2/05, Patrick Watson <[EMAIL PROTECTED]> wrote: > Just noticed: it seems that Intel has two pages for their mobile version of > the Pentium 4. This is the second one, and (guessing by the name) is > probably what the flag is really for: > http://www.intel.com/products/processor/pentium4-m/index.htm Hmmm, it looks like dothan should be a pentium-m. Thanks to everybody replied. -- Joe -- There are 3 kinds of people in the world: Those who can count, and those who can't. -- gentoo-user@gentoo.org mailing list
RE: [gentoo-user] -mtune for P4M (dothan)
Just noticed: it seems that Intel has two pages for their mobile version of the Pentium 4. This is the second one, and (guessing by the name) is probably what the flag is really for: http://www.intel.com/products/processor/pentium4-m/index.htm -Original Message- From: Patrick Watson [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 02, 2005 8:36 AM To: gentoo-user@lists.gentoo.org Subject: RE: [gentoo-user] -mtune for P4M (dothan) In other words: pentium4m is for the mobile version of the Pentium 4; see http://www.intel.com/products/processor/mobilepentium4/ Pentium-m is for the Pentium M series, a completely different processor from the Pentium 4 series. See http://www.intel.com/products/processor/pentiumm/index.htm -Original Message- From: Luca Botti [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 02, 2005 7:45 AM To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] -mtune for P4M (dothan) WRONG! dothan is not a P4M, it is a Pentium-M, like the previous, 1mb 2nd level cache version. So you should apply the pentium3 + sse options for gcc 3.3, or -march=pentium-m for gcc 3.4 and upper. The pentium4m is just a cut-down version of pentium4. Alle Tuesday 1 November 2005 16:09, Qian Qiao ha scritto: > Hi, > > Trying to install gentoo on a notebook with a P4M (dothan), wondering > what -mtune should I go for, the GCC manual says: > > pentium-m > Low power version of Intel Pentium3 CPU with MMX, SSE and SSE2 > instruction set support. Used by Centrino notebooks. > > pentium4, pentium4m > Intel Pentium4 CPU with MMX, SSE and SSE2 instruction set support. > > So shall I choose pentium-m? or pentium4m? > > TIA > > -- Joe > > -- > There are 3 kinds of people in the world: > Those who can count, and those who can't. -- gentoo-user@gentoo.org mailing list -- gentoo-user@gentoo.org mailing list -- gentoo-user@gentoo.org mailing list
RE: [gentoo-user] -mtune for P4M (dothan)
In other words: pentium4m is for the mobile version of the Pentium 4; see http://www.intel.com/products/processor/mobilepentium4/ Pentium-m is for the Pentium M series, a completely different processor from the Pentium 4 series. See http://www.intel.com/products/processor/pentiumm/index.htm -Original Message- From: Luca Botti [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 02, 2005 7:45 AM To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] -mtune for P4M (dothan) WRONG! dothan is not a P4M, it is a Pentium-M, like the previous, 1mb 2nd level cache version. So you should apply the pentium3 + sse options for gcc 3.3, or -march=pentium-m for gcc 3.4 and upper. The pentium4m is just a cut-down version of pentium4. Alle Tuesday 1 November 2005 16:09, Qian Qiao ha scritto: > Hi, > > Trying to install gentoo on a notebook with a P4M (dothan), wondering > what -mtune should I go for, the GCC manual says: > > pentium-m > Low power version of Intel Pentium3 CPU with MMX, SSE and SSE2 > instruction set support. Used by Centrino notebooks. > > pentium4, pentium4m > Intel Pentium4 CPU with MMX, SSE and SSE2 instruction set support. > > So shall I choose pentium-m? or pentium4m? > > TIA > > -- Joe > > -- > There are 3 kinds of people in the world: > Those who can count, and those who can't. -- gentoo-user@gentoo.org mailing list -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] -mtune for P4M (dothan)
WRONG! dothan is not a P4M, it is a Pentium-M, like the previous, 1mb 2nd level cache version. So you should apply the pentium3 + sse options for gcc 3.3, or -march=pentium-m for gcc 3.4 and upper. The pentium4m is just a cut-down version of pentium4. Alle Tuesday 1 November 2005 16:09, Qian Qiao ha scritto: > Hi, > > Trying to install gentoo on a notebook with a P4M (dothan), wondering > what -mtune should I go for, the GCC manual says: > > pentium-m > Low power version of Intel Pentium3 CPU with MMX, SSE and SSE2 > instruction set support. Used by Centrino notebooks. > > pentium4, pentium4m > Intel Pentium4 CPU with MMX, SSE and SSE2 instruction set support. > > So shall I choose pentium-m? or pentium4m? > > TIA > > -- Joe > > -- > There are 3 kinds of people in the world: > Those who can count, and those who can't. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] -mtune for P4M (dothan)
On 16:53 Tue 01 Nov , Ryan Viljoen wrote: > > Hi, > > > > Trying to install gentoo on a notebook with a P4M (dothan), wondering > > what -mtune should I go for, the GCC manual says: > > > > pentium-m > > Low power version of Intel Pentium3 CPU with MMX, SSE and SSE2 > > instruction set support. Used by Centrino notebooks. > > > > pentium4, pentium4m > > Intel Pentium4 CPU with MMX, SSE and SSE2 instruction set support. > > > > This is what I use with my notebook (Intel 1.5GHz Centrino): > CFLAGS="-O3 -pipe -march=pentium-m -mcpu=i686 -fomit-frame-pointer > -mtune=pentium-m" > which seems to work fine. > > I am however curious about pentium4m though. > I am using "pentium4" with a Centrino 1.86 and it works fine. I mentioned that here before, and someone congratulated me for being smart. In fact, I chose "pentium4" out of an abundance of ignorance. I have googled the subject to death, and found nothing suggesting that "pentium4" or "pentium4m" should be used with this processor, except an indication that the "dothan" is pentium3 based, with some pentium4 tweaks. No indication as to which CFLAG to use, except the gcc documentation, which seems to point to pentium3 or pentium-m. I am planning on sticking with the pentium4 flag, on the theory of "If it ain't broke, don't fix it", until I get some definitive guidance, or until I need to do a recompile. Any cflag guru's out there?? Bill Roberts pgpoEugoP4wIK.pgp Description: PGP signature
Re: [gentoo-user] -mtune for P4M (dothan)
> Hi, > > Trying to install gentoo on a notebook with a P4M (dothan), wondering > what -mtune should I go for, the GCC manual says: > > pentium-m > Low power version of Intel Pentium3 CPU with MMX, SSE and SSE2 > instruction set support. Used by Centrino notebooks. > > pentium4, pentium4m > Intel Pentium4 CPU with MMX, SSE and SSE2 instruction set support. > This is what I use with my notebook (Intel 1.5GHz Centrino): CFLAGS="-O3 -pipe -march=pentium-m -mcpu=i686 -fomit-frame-pointer -mtune=pentium-m" which seems to work fine. I am however curious about pentium4m though. -- "When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, for free". - Linus Torvalds, 1995 -- gentoo-user@gentoo.org mailing list
[gentoo-user] -mtune for P4M (dothan)
Hi, Trying to install gentoo on a notebook with a P4M (dothan), wondering what -mtune should I go for, the GCC manual says: pentium-m Low power version of Intel Pentium3 CPU with MMX, SSE and SSE2 instruction set support. Used by Centrino notebooks. pentium4, pentium4m Intel Pentium4 CPU with MMX, SSE and SSE2 instruction set support. So shall I choose pentium-m? or pentium4m? TIA -- Joe -- There are 3 kinds of people in the world: Those who can count, and those who can't. -- gentoo-user@gentoo.org mailing list
