+#define HANDSHAKE_COUNTING_INTERVAL 0.5
+#define UNDER_LOAD_INTERVAL 1.0
+#define HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD 40
+
+static_always_inline bool
+wg_if_is_under_load (vlib_main_t *vm, wg_if_t *wgi)
+{
+ static f64 wg_under_load_end;
+ f64 now = vlib_time_now (vm);
+ u32 num_until_under_load =
+ hash_elts (wgi->peers) * HANDSHAKE_NUM_PER_PEER_UNTIL_UNDER_LOAD;
+
+ if (wgi->handshake_counting_end < now)
+ {
+ wgi->handshake_counting_end = now + HANDSHAKE_COUNTING_INTERVAL;
+ wgi->handshake_num = 0;
+ }
+ wgi->handshake_num++;
+
+ if (wgi->handshake_num >= num_until_under_load)
+ {
+ wg_under_load_end = now + UNDER_LOAD_INTERVAL;
+ return true;
+ }
+
+ if (wg_under_load_end > now)
+ {
+ return true;
+ }
+
+ return false;
+}
+
+static_always_inline void
+wg_if_dec_handshake_num (wg_if_t *wgi)
+{
+ wgi->handshake_num--;
+}