FC4 test (x86_64) poor performance
Dave Jones
davej at redhat.com
Mon May 30 04:20:21 UTC 2005
On Mon, May 30, 2005 at 12:03:44AM -0400, Vlad wrote:
> > > FC4 x86_64, kernel is 2.6.11-1.1363_FC4 - the RPS is 730.
> > > FC3 x86_64, latests kernel - same results.
> > > FC3 i386, latests kernel - 570 RPS.
> > > FreeBSD 5.4-RELEASE (x86_64, stock kernel) - 670 RPS
> >
> > I'd suspect the reason FC3 sucks right now on this benchmark is that
> > 2.6.11 contained the 4-level page table support for AMD64, though
> > it wasn't optimised until 2.6.12rc.
> >
> > At least its the only thing that comes to mind that could explain
> > such a huge delta between the two. Good to know things are back
> > to normal however.
> >
> wait, you mean the i386 version of FC3? case FC3 x86_64 shows same
> numbers as FC4 x86_64 for me....
Oh, in that case, I have no explanation, as the 4-level pagetables
should have only affected x86-64.
Dave
More information about the test
mailing list