diff --git a/sys/kern/sched_4bsd.c b/sys/kern/sched_4bsd.c
--- a/sys/kern/sched_4bsd.c
+++ b/sys/kern/sched_4bsd.c
@@ -73,15 +73,17 @@
  * INVERSE_ESTCPU_WEIGHT is only suitable for statclock() frequencies in
  * the range 100-256 Hz (approximately).
  */
-#define	ESTCPULIM(e) \
-    min((e), INVERSE_ESTCPU_WEIGHT * (NICE_WEIGHT * (PRIO_MAX - PRIO_MIN) - \
-    RQ_PPQ) + INVERSE_ESTCPU_WEIGHT - 1)
 #ifdef SMP
 #define	INVERSE_ESTCPU_WEIGHT	(8 * smp_cpus)
 #else
 #define	INVERSE_ESTCPU_WEIGHT	8	/* 1 / (priorities per estcpu level). */
 #endif
 #define	NICE_WEIGHT		1	/* Priorities per nice level. */
+#define	ESTCPULIM(e)							\
+	min((e), INVERSE_ESTCPU_WEIGHT *				\
+	    (NICE_WEIGHT * (PRIO_MAX - PRIO_MIN) +			\
+	    PRI_MAX_TIMESHARE - PRI_MIN_TIMESHARE)			\
+	    + INVERSE_ESTCPU_WEIGHT - 1)
 
 #define	TS_NAME_LEN (MAXCOMLEN + sizeof(" td ") + sizeof(__XSTRING(UINT_MAX)))