[BlueOnyx:03964] Re: Memory Limit

[Gerald Waugh]

On Thu, 2010-03-11 at 13:12 -0500, Darrell D. Mobley wrote:
> > -----Original Message-----
> > From: blueonyx-bounces at blueonyx.it [mailto:blueonyx-bounces at blueonyx.it]
> > On Behalf Of Stephanie Sullivan
> > Sent: Thursday, March 11, 2010 12:16 PM
> > To: 'BlueOnyx General Mailing List'
> > Subject: [BlueOnyx:03955] Re: Memory Limit
> > 
> > Be aware that .ELsmp kernels are PAE kernels too. If you are running a
> > multi-core (I think) if you install a PAE kernel it will only use one
> > core.
> > I'd suggest that using an smp kernel if you are not sure. The additional
> > overhead on a single core system is minimal.
> 
> Stephanie, could we discuss this a little more?  I have an HP DL380 G3,
> which is dual 2.8Ghz Xeon processors.  I have been running the PAE kernels,
> thinking that was required to access my 6GB of RAM.  Are you saying that I
> might be wise to try an SMP kernel to get better performance?
> 

Currently the RHEK i686-smp kernels have the HIGHMEM64G option enabled
which should allow upto 32GB RAM.
Now I don't know if CentOS kernels actually do this.
Try loading one, and select it in the boot menu.
You can always switch back.

Gerald

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