[gentoo-user] Dual Core CPUs & SATA HD

[gentoo-user] Dual Core CPUs & SATA HD

[Dhruba Bandopadhyay]

Hi,

I'm just about to install gentoo on a dual core Intel CPU machine with
a SATA HD.  So, essentially, I have two questions.  What CFLAGS are
recommended for a dual core CPU and what precautions must one take to
have the SATA HD recognised by the install media?  I don't think the
CPU is 64 bit in case you need to know.

Many thanks.

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Re: [gentoo-user] Dual Core CPUs & SATA HD

[Colin]

On Jul 30, 2005, at 5:40 PM, Dhruba Bandopadhyay wrote:

> Hi,
>
> I'm just about to install gentoo on a dual core Intel CPU machine with
> a SATA HD.  So, essentially, I have two questions.  What CFLAGS are
> recommended for a dual core CPU and what precautions must one take to
> have the SATA HD recognised by the install media?  I don't think the
> CPU is 64 bit in case you need to know.

A multi-core single-CPU system (yours) is virtually identical to a  
single-core multi-CPU system.  I would use MAKEOPTS="-j2" or higher  
(basically, twice what you would do for a single-processor system) in  
your make.conf to take advantage of all that parallel processing  
power.  Use the normal CFLAGS and CXXFLAGS, there aren't any special  
options for multiprocessor systems there.  When you compile your  
kernel, be SURE to include SMP (symmetric multi-processing) support  
to let the kernel use both cores.

SATA hard drives, if supported natively by the southbridge, require  
no extra drivers.  Since your motherboard must be relatively new,  
this is your case.  If they aren't supported natively, one of the  
various sata_* modules will autoload and handle it.  They might be  
enumerated as SCSI devices, though (/dev/sd* rather than /dev/hd*),  
but I believe this is perfectly normal.
--
Colin
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