Re: Need to compile kernel for 2 or more processors?

2010-12-05 Thread ill...@gmail.com
On 5 December 2010 12:39, Jorge Biquez  wrote:
> Hello all.

Hello.

>
> I hope this question does not sound so stupid. I am sorry in advance.
>

Well, that's life.

>
>  I guess that actually we do not have to change the kernel so all processors
> can be seen? Am I right ?


http://svn.freebsd.org/viewvc/base/releng/7.3/sys/i386/conf/GENERIC?revision=203736&view=markup
or
http://tinyurl.com/28km4fc
shows that
---
# To make an SMP kernel, the next two lines are needed
options SMP # Symmetric MultiProcessor Kernel
device  apic# I/O APIC
---
is part of GENERIC on 7.3, ergo you needn't recompile to enjoy multiple
processing joy in all(most of) its glory.

HTH

-- 
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Re: Need to compile kernel for 2 or more processors?

2010-12-05 Thread Chris Brennan
On Sun, Dec 5, 2010 at 12:39 PM, Jorge Biquez wrote:

> Hello all.
>
> I hope this question does not sound so stupid. I am sorry in advance.
>
> I am doing my guideline of the activities I need to do to change an old 2
> processors INtel 386 machine with 1GB of ram and 30GB of hard disk. The
> machine is working fine but after more than 10 years of working will be
> replaced for a new machine (could be an i3, i7, or xeon maybe). This one
> will be honored and will continue working as our secondary DNS. Actually is
> running Freebsd version 7.3 PRERELEASE . I will updated to 7.3 RELEASE.
> This machine has 2 physical processors and I remember that on old version
> of FreeBSD I have to compile the kernel so the second processor could be
> seen. I still do not know aht processor will be but I am looking for the
> strongest and cheapest combination of motherboard and processor. Anyway, I
> was wondering, if it is only one physycal processor with 2-4 embedded (xeon
> by exmaple)
>
>  I guess that actually we do not have to change the kernel so all
> processors can be seen? Am I right ?
>
> By the way, if you can suggest based on experience the best combination on
> price performance of motherboard/processor to follow (not necessary the
> latest one) please let me know.
>
> Thanks in advance
>
> Jorge Biquez
>
>

IIRC, FreeBSD7+ kernels are compiled w/ SMP already, atleast I know my
FBSD7.3 box is compiled w/ it and it's been that way since I installed it
like 3 years ago.

Multicore CPU's are realistically cheap, Dual and Quad Core CPU's would run
you somewhere between $50-$100 in the U.S. Now as for a Multi-Core/Multi-CPU
setup, that would cost you considerably more. Especially if you want more
then 2 Multi-Core CPU's. pricewatch.com is a great place to judge prices
(again, in the U.S.)


HTH, C-
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Need to compile kernel for 2 or more processors?

2010-12-05 Thread Jorge Biquez

Hello all.

I hope this question does not sound so stupid. I am sorry in advance.

I am doing my guideline of the activities I need to do to change an 
old 2 processors INtel 386 machine with 1GB of ram and 30GB of hard 
disk. The machine is working fine but after more than 10 years of 
working will be replaced for a new machine (could be an i3, i7, or 
xeon maybe). This one will be honored and will continue working as 
our secondary DNS. Actually is running Freebsd version 7.3 PRERELEASE 
. I will updated to 7.3 RELEASE.
This machine has 2 physical processors and I remember that on old 
version of FreeBSD I have to compile the kernel so the second 
processor could be seen. I still do not know aht processor will be 
but I am looking for the strongest and cheapest combination of 
motherboard and processor. Anyway, I was wondering, if it is only one 
physycal processor with 2-4 embedded (xeon by exmaple)


 I guess that actually we do not have to change the kernel so all 
processors can be seen? Am I right ?


By the way, if you can suggest based on experience the best 
combination on price performance of motherboard/processor to follow 
(not necessary the latest one) please let me know.


Thanks in advance

Jorge Biquez

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