Dynamic Ticks/HZ

Hi guys,

Has some default changed between 9.1-RC2 and HEAD?

On identical machines, one with 9.1-RC2 and one with HEAD from yesterday 
  (GENERIC) I see the following in systat -v:

9.1:
65 cpu0:timer
10 cpu1:timer

HEAD:
1127 cpu0:timer
22 cpu1:timer

These are Supermicro i3 boxes and as far as I can see they have matching 
BIOS config.

Thanks,
J