Gentoo Archives: gentoo-amd64

From: Mateusz Arkadiusz Mierzwinski <mateuszmierzwinski@×××××.com>
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] About to install on a 64 bit system. Advice wanted.
Date: Wed, 08 Dec 2010 23:05:03
In Reply to: [gentoo-amd64] About to install on a 64 bit system. Advice wanted. by Dale
Nothing much. Use like normal x86 besides:
- Kernel set to Your CPU in Processor Setttings (generic x86_64 is good for
all configurations).
- Accept keyword for "Beta"-like packages is ~amd64 not ~x86
- You don't have to set MMX flag, but set SSE, SSE2 and if Your CPU have it
- SSE3 this will optimize floating point operations.
- Enable SMP (symmetric Multiprocessing) where available - by flags.
- If it's multicore (I have Intel on my LAP so don't know about Your CPU)
set MAKEOPTS to cores count+1.
- If it's multicore try to enable threads flag - this boosts performance
even on single core cpus, but on multicore will make much difference.
- Chceck by eselect what profile of portage you have set as default. If is
not try setting some with Amd64 on path.
- When GCC upgrade check if "multilib" is set - this will enable You to link
with 32-bit libs and 64-bit (as standard).
- In kernel set ciphers and algorithms (like MD5, SHA etc) to amd64 version.

I think that's it. Everything elese should be fine.

2010/12/8 Dale <rdalek1967@×××××.com>

> Hi, > > First post here. I'm usually on gentoo user. I'm in the process of > building a new system which will be 64 bit. I am looking for advice. I > would like people to post things that I might run into that one wouldn't > expect and some things that are different from x86. I was looking at > something on my old rig and noticed the USE flag smp. I didn't know about > that until I ran up on it. I learned something by pure dumb luck. > > I'm a long time Gentoo user. Installed it at the early stages of 1.4. I > also use KDE and have fluxbox installed as a backup. The processor is a AMD > Phenom II X4 955 @3.2Ghz. It will start out with one 4Gb stick of ram. I > plan to expand that later. > > What are some things that I should watch for and enable that isn't so > obvious for someone new to 64 bit? > > Thanks. > > Dale > > :-) :-) > >
-- Mateusz Mierzwiński Bluebox Software


Subject Author
Re: [gentoo-amd64] About to install on a 64 bit system. Advice wanted. Dale <rdalek1967@×××××.com>