Re: [gentoo-user] kernel config for eee w/Atom N270 CPU

[Maxim Wexler]

On 6/11/09, Paul Hartman <paul.hartman+gentoo@×××××.com> wrote:
> On Thu, Jun 11, 2009 at 1:14 PM, Maxim Wexler<maxim.wexler@×××××.com> wrote:
>> Hi group,
>>
>> Been tracking down other's kern config for 900A w/ N270 Atom cpu and
>> notice, so far, everyone goes for CONFIG_SMP=y. Why, particularly when
>> most commenters stress keeping the kernel as slim as possible?
>>
>> In the <help> window we have 'If you have a system with only one CPU,
>> like most personal computers, say N.' As far as I know the 900A has
>> only one CPU, unless there is some sort of virtual one I haven't heard
>> of yet.
>
> Does the CPU have multiple cores? If so, that's probably why.
>

hmm, when I %cat /proc/cpuinfo I get processor :0 at the top of a list
of stuff then, just below that, processor :1 at the top of an
identical list.

Are those two cores? I think CONFIG_MCORE2=y is recommended for the
Atom. Does MCORE2 mean 'two cores' or 'core no.2'? The <help>
window(under Symmetric multi-processor support) says nothing about
'cores'  Are 'cores' and 'cpus' the same thing in this context?

Well, this has taken me all morning and half the afternoon and I
haven't even started 'Power management...' options yet. I'll just say
'yes' to SMP and carry on. Hopefully have the definitive answer  by
midnight and I can make the darn kernel.

mw

mw