Re: page fault scalability patch V8: [4/7] universally available cmpxchg on i386

Andi Kleen
2004-09-21T20:14:37Z

> Looks like indirect jump is only slightly slower (on this CPU).

K7/K8 can predict indirect jumps. But most P3 and P4s can't (except for
the new Prescotts and Centrinos). And in all cases their jump predictor works
worse.

-Andi