Re: RHEL4 x86 kernel with more than 4 GB of RAM

[Micah Yoder <myoder hcjb org ec>]

On Friday 05 August 2005 10:27, Arjan van de Ven wrote:
> I severly doubt it. If you notice poor performance, the 6% that PAE
> "costs" isn't it. 6% is hardly noticable. (also that 6% is on early p4
> cpus; it could well be that intel reduced the cost in later cpus)

I doubt PAE is the main part of the problem, but 6% isn't negligible in my 
book.

I wonder why they don't offer PAE and non-PAE SMP kernels.  What is the 
percentage of SMP boxes (including hyperthreading CPUs) that have more than 
4GB RAM?  Probably well under 10%?