Speeding up cpu-time accounting (rerun)

[Ivan Voras]

Poul-Henning Kamp wrote:
> http://www.freebsd.org/cgi/getmsg.cgi?fetch=239010+242520+/usr/local/www/db/text/2005/freebsd-current/20051204.freebsd-current
> 
> I can't really say I have gotten much feedback on this.

You have my results, but here's an addition: it was ultimately unstable. 
I applied it mostly cleanly on RELENG-6, but I've had spontaneus reboots 
until I reverted to normal kernel. The reboots were very random and 
sporadic - about once every few days or so (always under X11, in case 
it's important). I have KDB and dumps configured but to no use.