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