NICE_WEIGHT       560 kern/sched_bsd.c 	newpriority = PUSER + p->p_estcpu + NICE_WEIGHT * (p->p_nice - NZERO);
NICE_WEIGHT       119 sys/sched.h    #define	ESTCPULIM(e) min((e), NICE_WEIGHT * PRIO_MAX - PPQ)