--- CBOR-XS/README	2013/10/29 15:56:31	1.7
+++ CBOR-XS/README	2013/10/29 22:04:52	1.8
@@ -44,6 +44,14 @@
     (JSON often compresses better than CBOR though, so if you plan to
     compress the data later you might want to compare both formats first).
 
+    To give you a general idea about speed, with texts in the megabyte
+    range, "CBOR::XS" usually encodes roughly twice as fast as Storable or
+    JSON::XS and decodes about 15%-30% faster than those. The shorter the
+    data, the worse Storable performs in comparison.
+
+    As for compactness, "CBOR::XS" encoded data structures are usually about
+    20% smaller than the same data encoded as (compact) JSON or Storable.
+
     The primary goal of this module is to be *correct* and the secondary
     goal is to be *fast*. To reach the latter goal it was written in C.