Index: sys/dev/ixgbe/if_ix.c
===================================================================
--- sys/dev/ixgbe/if_ix.c
+++ sys/dev/ixgbe/if_ix.c
@@ -353,7 +353,7 @@
  * is varied over time based on the
  * traffic for that interrupt vector
  */
-static int ixgbe_enable_aim = FALSE;
+static int ixgbe_enable_aim = 1;
 SYSCTL_INT(_hw_ix, OID_AUTO, enable_aim, CTLFLAG_RWTUN, &ixgbe_enable_aim, 0,
     "Enable adaptive interrupt moderation");