[K12OSN] Dual Core Kernel optimizations (a little off topic)

John Lucas mrjohnlucas at gmail.com
Thu Jan 18 15:00:38 UTC 2007


Fedora Core 6's default kernel is SMP (Symetric Multi-Processing) and will see 
the Core 2 Duo as two CPUs. Earlier versions of Fedora have multiple kernels, 
be sure to use the SMP kernel. FC6 sometimes has problems correctly 
identifying the kernel architechture, so make sure you get the right kernel 
upon installation. My laptop's Core Duo (aka Centrino Duo) was mis-identified 
as an i586 so I had to rectify the problem myself (you may not have the 
problem on the Core 2 Duo, which has a different lineage than mine).

You won't have to "tweak" anything to get load balancing between cores and 
there is no provision for changing the default CPU behavior in the way that 
you suggest.

On Thursday 18 January 2007 09:14, Nadav Kavalerchik wrote:
> Hi All :-)
>
> i just got a new server with Core 2 Duo E6300 and i was wondering
> if i can instruct the OS / Kernel to use this dual cpu chip in a way that
> is better than the default Fedora install settings ?
>
> we connect 25 workstations to the server (that generally use OpenOffice,
> Firefox, Opera, Java, Flash...)
>
> do i need to compile the kernel in a special way ?
> are there any tweaks i can set in the OS ?
> can i set default process behavior like... all firefox instances use cpu 1
> and all java apps use cpu 0 ?
>
> should i leave the OS alone ? ;-) to do it's load balancing job ?
>
> Kindly,
> Nadav :-)

-- 
        "History doesn't repeat itself; at best it rhymes."
                        - Mark Twain

| John Lucas                          MrJohnLucas at gmail.com               |
| St. Thomas, VI 00802                http://mrjohnlucas.googlepages.com/ |
| 18.3°N, 65°W                        AST (UTC-4)                         |




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