RFC: Page size on PPC/PPC64 builders

[Josh Boyer]

On Mon, 3 Mar 2008 13:12:10 -0500
Jarod Wilson <jwilson at redhat.com> wrote:

> On Monday 03 March 2008 12:25:24 pm Bill Nottingham wrote:
> > David Woodhouse (dwmw2 at infradead.org) said:
> > > For 4KiB pages:
> > >  - Makes life 'easier' for PPC builds, to stop people whining about it
> > >    finding their bugs for them.
> > >  - Consistent with what we actually ship in Fedora.
> >
> > - wastes less memory on lower-mem ppc machines. Not that this should be a
> > dealbreaker, but it's something to think about.
> 
> Yeah, that's definitely an issue. Some of the ppc boxes in our internal test 
> setup have "only" 1G of RAM, and when the system is under load[*], you can 
> run out of free pages and start oom-killing stuff pretty quick w/64k pages...
> 
> [*] http://www.codemonkey.org.uk/projects/scrashme/scrashme.git/

I think you're both slightly confused.  This is for switching the
_builders_ back to a 4KiB page kernel.  Not Fedora, which is already
4KiB pages.

josh