On Wed, Sep 01, 2004 at 02:28:30PM +0100, Dominic Sweetman wrote: > 1. Your application has a non-trivial user space of any size; > > 2. The performance of userland code is significant; The kernel's performance also relies on TLB performance. The wired register is making it easy to test performance of kernel and application with a reduced size TLB; maybe I should make that a kernel feature. Ralf