Custom Kernels

[James Wilkinson]

Wayne Leutwyler wrote:
> Are there any benefits from building a custom kernel, aside from a smaller 
> kernel and smaller modules foot print.

Normally, no.

But the Fedora kernel (at least the 686 version) comes compiled with
4G/4G support. This makes handling very large memory systems (16 GB and
up) much easier, but comes with a cost in performance. Alan Cox put it
at 10%:
http://www.redhat.com/archives/fedora-test-list/2004-April/msg01872.html

x86-64 inherently does not need this mode.

James.

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