K 10 svn:author V 4 jeff K 8 svn:date V 27 2018-07-07T01:54:45.484255Z K 7 svn:log V 227 Use the ticks since the last update to reduce hysteresis in the partpopq and contention on the vm_reserv_domain lock. This gives a roughly 8x speedup on will-it-scale fault1 on a 16 core machine. Reviewed by: alc, kib, markj END