Hi Nick, On Thu, Mar 17, 2005 at 11:37:24PM +1100, Nick Piggin wrote: > Ian Pratt wrote: > >fork: 166 -> 235 (40% slowdown) > >exec: 857 -> 1003 (17% slowdown) > > > >I'm guessing this is down to the 4 level pagetables. This is rather a > >surprise as I thought the compiler would optimise most of these > >changes away. Apparently not. > > There are some changes in the current -bk tree (which are a > bit in-flux at the moment) which introduce some optimisations. > > They should bring 2-level performance close to par with 2.6.10. > If not, complain again :)
Is there a clean patchset that we should look at to test? Regards, -- Kurt Garloff, Director SUSE Labs, Novell Inc.
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