Index: sys/kern/sched_ule.c
===================================================================
--- sys/kern/sched_ule.c
+++ sys/kern/sched_ule.c
@@ -251,6 +251,7 @@
 	struct runq	tdq_realtime;		/* real-time run queue. */
 	struct runq	tdq_timeshare;		/* timeshare run queue. */
 	struct runq	tdq_idle;		/* Queue of IDLE threads. */
+	sbintime_t	tdq_next_steal;		/* When can we attempt to steal. */
 	char		tdq_name[TDQ_NAME_LEN];
 #ifdef KTR
 	char		tdq_loadname[TDQ_LOADNAME_LEN];
@@ -277,6 +278,7 @@
 static int __read_mostly steal_thresh = 2;
 static int __read_mostly always_steal = 0;
 static int __read_mostly trysteal_limit = 2;
+static int __read_mostly steal_interval;
 
 /*
  * One thread queue per processor.
@@ -976,6 +978,22 @@
 	return (td);
 }
 
+#ifdef SMP
+static bool
+tdq_can_steal(struct tdq *tdq)
+{
+	sbintime_t now;
+
+	if (steal_interval != 0) {
+		now = getsbinuptime();
+		if (now < tdq->tdq_next_steal)
+			return (false);
+		tdq->tdq_next_steal = now + steal_interval * SBT_1US;
+	}
+	return (true);
+}
+#endif
+
 /*
  * This tdq has idled.  Try to steal a thread from another cpu and switch
  * to it.
@@ -990,6 +1008,10 @@
 
 	if (smp_started == 0 || steal_idle == 0 || tdq->tdq_cg == NULL)
 		return (1);
+#ifdef SMP
+	if (!tdq_can_steal(tdq))
+		return (1);
+#endif
 	CPU_FILL(&mask);
 	CPU_CLR(PCPU_GET(cpuid), &mask);
     restart:
@@ -1923,7 +1945,8 @@
 	cpuset_t mask;
 	int cpu, i;
 
-	if (smp_started == 0 || trysteal_limit == 0 || tdq->tdq_cg == NULL)
+	if (smp_started == 0 || trysteal_limit == 0 || tdq->tdq_cg == NULL ||
+	    !tdq_can_steal(tdq))
 		return;
 	CPU_FILL(&mask);
 	CPU_CLR(PCPU_GET(cpuid), &mask);
@@ -3121,6 +3144,9 @@
     0, "Topological distance limit for stealing threads in sched_switch()");
 SYSCTL_INT(_kern_sched, OID_AUTO, always_steal, CTLFLAG_RW, &always_steal, 0,
     "Always run the stealer from the idle thread");
+SYSCTL_INT(_kern_sched, OID_AUTO, steal_interval, CTLFLAG_RWTUN,
+    &steal_interval, 0,
+    "Steal work only every steal_interval microseconds");
 SYSCTL_PROC(_kern_sched, OID_AUTO, topology_spec, CTLTYPE_STRING |
     CTLFLAG_MPSAFE | CTLFLAG_RD, NULL, 0, sysctl_kern_sched_topology_spec, "A",
     "XML dump of detected CPU topology");