From ea5a67f561f3dcb57f77484d1c2d30e3473f5352 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 22 Jun 2020 19:18:02 -0600
Subject: Histogram

---
 sys/net/if_wg.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'sys/net/if_wg.c')

diff --git a/sys/net/if_wg.c b/sys/net/if_wg.c
index e27a575cc1b..9e23dfb60ee 100644
--- a/sys/net/if_wg.c
+++ b/sys/net/if_wg.c
@@ -1681,13 +1681,26 @@ error:
 	task_add(net_tq(sc->sc_if.if_index), &peer->p_deliver_in);
 }
 
+#define BUCKETS 512
+static unsigned int buckets[BUCKETS];
+unsigned int times;
+
 void
 wg_encap_worker(void *_sc)
 {
 	struct mbuf *m;
 	struct wg_softc *sc = _sc;
-	while ((m = wg_ring_dequeue(&sc->sc_encap_ring)) != NULL)
+	unsigned int i = 0;
+	while ((m = wg_ring_dequeue(&sc->sc_encap_ring)) != NULL) {
 		wg_encap(sc, m);
+		++i;
+	}
+	if (i < BUCKETS)
+		++buckets[i];
+	if (times++ == 4096 * 8) {
+		for (i = 0; i < BUCKETS; ++i)
+			DPRINTF(sc, "%u: %u\n", i, buckets[i]);
+	}
 }
 
 void
-- 
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