Multi-core CPUs - kernel vs kernel-smp

Pankaj Govil pgovil at
Fri Oct 12 18:24:55 UTC 2007

Also if you have a server with more than 4Gigs of RAM you will need to
use the smp kernel


Pankaj Govil

-----Original Message-----
From: redhat-list-bounces at
[mailto:redhat-list-bounces at] On Behalf Of Andrew Bacchi
Sent: Friday, October 12, 2007 8:22 AM
To: davidr at; General Red Hat Linux discussion list
Subject: Re: Multi-core CPUs - kernel vs kernel-smp

My answer yesterday was to use the kernel-smp on multiple CPUs and
multicore single CPUs.  If you're using either of these you'll need the
kernel-smp.  In the case of a single, non multicore CPU, use the
"kernel" kernel.

What hardware are you considering for your web servers?  I have many
Dell and IBM servers, all with multi Xeon processors.  I'd think for a
web server that has a fair amount of traffic, you'd want at lease two
Dual-Core processors of > 2 Gh, and lots of RAM.

David Richards wrote:
> Clark, Patti wrote:
>> Not being a kernel expert, when would one want to use kernel vs 
>> kernel-smp on a multi-core system?
>> Patti Clark
>> Unix System Administrator - RHCT
>> Office of Scientific and Technical Information 
>> <mailto:clarkp at> <mailto:clarkp at> "The U.S.
>> Constitution doesn't guarantee happiness, only the pursuit of it. You

>> have to catch up with it yourself." - Benjamin Franklin
> Hi,
>      I need information on this too. I am current looking in to 
> "respeccing" our web servers and I don't know much about the 
> smp/dual-core kernel stuff. I guess i need to dig through google
> David

veritatis simplex oratio est

Andrew Bacchi
Systems Programmer
Rensselaer Polytechnic Institute
phone: 518.276.6415  fax: 518.276.2809

redhat-list mailing list
unsubscribe mailto:redhat-list-request at

More information about the redhat-list mailing list