Index: sys/vm/vm_pageout.c
===================================================================
--- sys/vm/vm_pageout.c
+++ sys/vm/vm_pageout.c
@@ -1815,10 +1815,18 @@
 			 * (page reclamation) scan, then increase the level
 			 * and scan again now.  Otherwise, sleep a bit and
 			 * try again later.
+			 * LM: per discussions with the numa team, don't
+			 * sleep if we have at least 2 cpus, just keep
+			 * scanning.  This makes a HUGE difference when
+			 * the system is thrashing on memory, it's the 
+			 * difference between usable and borked.
 			 */
 			mtx_unlock(&vm_page_queue_free_mtx);
-			if (pass >= 1)
-				pause("psleep", hz / VM_INACT_SCAN_RATE);
+			if (pass >= 1) {
+				if (mp_ncpus < 2) {
+					pause("psleep", hz /VM_INACT_SCAN_RATE);
+				}
+			}
 			pass++;
 		} else {
 			/*