Describe the polynomial backoff curve used in the quota adjustment

(cherry picked from commit 56ef09c3a16c0777bc3ee8684923320b0d858190)

diff --git a/lib/dns/adb.c b/lib/dns/adb.c
index 3b68e4334130422d82a69928e6ea0107954608b2..b41a19d94a0aa0a3450f41c34f5fb3ccacb1b06b 100644 (file)
--- a/lib/dns/adb.c
+++ b/lib/dns/adb.c
@@ -4175,7 +4175,9 @@ dns_adb_changeflags(dns_adb_t *adb, dns_adbaddrinfo_t *addr,
 }
 
 /*
- * (10000 / ((10 + n) / 10)^(3/2)) for n in 0..99.
+ * The polynomial backoff curve (10000 / ((10 + n) / 10)^(3/2)) <0..99> drops
+ * fairly aggressively at first, then slows down and tails off at around 2-3%.
+ *
  * These will be used to make quota adjustments.
  */
 static int quota_adj[] = {