Re: [gentoo-user] Install Gentoo on one machine, then move the drive to another

[Geistteufel <geistteufel@yahoo.fr>]

Did your actual system install on your Pentium D is in 64 bits ?

Le Thu, 16 Nov 2006 15:45:02 +0100, Jon M <gentoo@net-xero.net> a écrit:

> Mark M wrote:
>>   On 11/16/06, *Alan McKinnon* <alan@linuxholdings.co.za  
>> <mailto:alan@linuxholdings.co.za>> wrote:
>>      On Thursday 16 November 2006 01:00, Mark M wrote:
>>      > Hi all,
>>      > Pentium D is actually an emt64 dual core cpu,
>>      > so while CFLAGS -march=pentium4 will work, it will be x86-32  
>> instead
>>      > of x86-64 and of course the compiled apps won't know nothing  
>> about
>>      > the dual core (read almost dual CPU),
>>      > still it will run, and it will run fast, you may want to  
>> recompile
>>      > the kernel on the data center with vSMP option set, so at least  
>> the
>>      > kernel will know how to manage multithreads between two cores.
>>      In that case he should be cross-compiling with a CHOST set for the
>>     PentiumD, not so?
>>      alan
>>     --
>>     gentoo-user@gentoo.org <mailto:gentoo-user@gentoo.org> mailing list
>>   Yes, he can do so, but he won't be able to test run his apps.
>> And judging from my experience there isn't much difference between apps  
>> compiled for x86-32 or x86-64, however compiling the kernel for right  
>> cpu speed up things, especially multithreaded.
>>
>
> Hi Mark,
>
> I actually wasn't planning on using 64bit anyway
>
> I'm wondering if I should set my CFLAGS to -march=x86-32 or leave it as  
> -march=pentium4?  Are they essentially the same?  I already took your  
> previous suggestion and enabled vSMP support, though I haven't moved the  
> drive to it's new home as of yet.



	

	
		
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