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List Archive: gentoo-amd64
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To: gentoo-amd64@g.o
From: Mateusz Arkadiusz Mierzwinski <mateuszmierzwinski@...>
Subject: Re: About to install on a 64 bit system. Advice wanted.
Date: Wed, 8 Dec 2010 23:58:09 +0100
Nothing much. Use like normal x86 besides:<br>- Kernel set to Your CPU in Processor Setttings (generic x86_64 is good for all configurations).<br>- Accept keyword for &quot;Beta&quot;-like packages is ~amd64 not ~x86<br>- You don&#39;t have to set MMX flag, but set SSE, SSE2 and if Your CPU have it - SSE3 this will optimize floating point operations.<br>
- Enable SMP (symmetric Multiprocessing) where available - by flags.<br>- If it&#39;s multicore (I have Intel on my LAP so don&#39;t know about Your CPU) set MAKEOPTS to cores count+1.<br>- If it&#39;s multicore try to enable threads flag - this boosts performance even on single core cpus, but on multicore will make much difference.<br>
- Chceck by eselect what profile of portage you have set as default. If is not try setting some with Amd64 on path.<br>- When GCC upgrade check if &quot;multilib&quot; is set - this will enable You to link with 32-bit libs and 64-bit (as standard).<br>
- In kernel set ciphers and algorithms (like MD5, SHA etc) to amd64 version.<br><br>I think that&#39;s it. Everything elese should be fine.<br><br><div class="gmail_quote">2010/12/8 Dale <span dir="ltr">&lt;<a href="mailto:rdalek1967@...">rdalek1967@...</a>&gt;</span><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Hi,<br>
<br>
First post here.  I&#39;m usually on gentoo user.  I&#39;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&#39;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&#39;t know about that until I ran up on it.  I learned something by pure dumb luck.<br>

<br>
I&#39;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.<br>

<br>
What are some things that I should watch for and enable that isn&#39;t so obvious for someone new to 64 bit?<br>
<br>
Thanks.<br><font color="#888888">
<br>
Dale<br>
<br>
:-)  :-)<br>
<br>
</font></blockquote></div><br><br clear="all"><br>-- <br>Mateusz Mierzwiński<br><br>Bluebox Software <a href="http://www.blueboxsoft.pl/mateusz-mierzwinski" target="_blank">http://www.blueboxsoft.pl/mateusz-mierzwinski</a><br>

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Re: About to install on a 64 bit system. Advice wanted.
-- Dale
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About to install on a 64 bit system. Advice wanted.
-- Dale
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Updated Jun 28, 2012

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