Last I used PAE kernels (ages ago) - I saw 1-5% degradation in performance.
It was a while ago and I am not even sure I remember the versions any more.
What I remember is NOT scientific data.
M
- "Muli Ben-Yehuda" <[EMAIL PROTECTED]> wrote:
> I would like to understand this better, if you or
isnt' there a bigmem kernel for situations just like these?
On 8/9/07, Muli Ben-Yehuda <[EMAIL PROTECTED]> wrote:
> On Thu, Aug 09, 2007 at 02:59:02PM +0300, Ira Abramov wrote:
> > Quoting Muli Ben-Yehuda, from the post of Thu, 09 Aug:
> > >
> > > Because some PCI devices cannot deal with address
On Thu, Aug 09, 2007 at 02:59:02PM +0300, Ira Abramov wrote:
> Quoting Muli Ben-Yehuda, from the post of Thu, 09 Aug:
> >
> > Because some PCI devices cannot deal with addresses over 4G. To be
> > able to map the RAM that has physical address over 4G in the CPU's
> > page tables, you need a PAE ke
Hi Ira,
I bumped into the same question some time ago - sending to iglu.org.il
silently failed.
Here's why:
http://www.mail-archive.com/linux-il@cs.huji.ac.il/msg48796.html
Boaz.
Ira Abramov wrote:
> annoying! I just figured out why my posts to the list have disappeared
> in the last couple
Quoting Muli Ben-Yehuda, from the post of Thu, 09 Aug:
>
> Because some PCI devices cannot deal with addresses over 4G. To be
> able to map the RAM that has physical address over 4G in the CPU's
> page tables, you need a PAE kernel. As for the penalty on speed, I
> doubt you'll be able to measure
Huh? your mail has been received well (this and the first one you sent)
Thanks,
Hetz
On 09/08/07, Ira Abramov <[EMAIL PROTECTED]> wrote:
> annoying! I just figured out why my posts to the list have disappeared
> in the last couple of months... the @iglu.org.il alias no longer points
> to huji. wh
On Thu, Aug 09, 2007 at 11:23:09AM +0300, Ira Abramov wrote:
> the problem I am having is the PCI memory mapping. It's set at
> "2.5GB" by default in the BIOS, and Debian Etch comes up and indeed
> sees only 2.5GB. I have set it up to 3.5G to lose less RAM, but I
> would still like to use the rest
