PAE question

[Oren Held]

On Sunday 02 August 2009 12:29:22 you wrote:
> Hi,
>
> The Fedora 11 default installation installs the kernel with PAE
> installation *regardless* of how much RAM I have.
>
> I was wondering: are there any performance "penalties" when using PAE
> enabled kernel instead of the i686 version?
I was wondering the same once, and wrote this little post:
http://www.held.org.il/blog/?p=79

Note the references which I based this on.

In short: it's not easy to measure, but the penalty seems to be quite 
insignificant. Still, using a 64 bit kernel (even on 32 bit os!) removes the 
need for PAE.

 - Oren