On Mar 2, 2007, at 9:10 AM, Andrew Doran wrote:
Log Message: pmap_reference, pmap_destroy: update the pmap reference count using _lock_cas. This is ugly and needs to be redone when atomic ops are available, but for now it knocks about 5% contention off the kernel lock in one test that I have done.
I am working on an atomic ops API. I'll propose it on tech-kern within a few days.
-- thorpej