> 3- In RHEL5 there's no need for a specific hugemem kernel anymore as
> the kernel is smart enough to decide during boot what kind of
> technology should it use.
That does not make sense to me. The kernel can find out whether it needs
more than 1GB for the kernel space during boot according to the amount
memory available, and it can decide whether it needs PAE. I don't see
how it can decide whether any user space program needs more than 3GB of
space, however, during boot.
> - Noam
Shachar
This is from the release notes of RHEL5 (Kernel Notes). I tend to believe
that it applies on hugemem as well.
o X86 "SMP alternatives"
o optimizes a single kernel image at runtime according to
the available platform
o ref: [16]http://lwn.net/Articles/164121/
- Noam
