hash: use partial-key hashing

[dpdk.git] / doc / guides / rel_notes / release_18_11.rst

diff --git a/doc/guides/rel_notes/release_18_11.rst b/doc/guides/rel_notes/release_18_11.rst
index bf8059e..0a90144 100644 (file)
--- a/doc/guides/rel_notes/release_18_11.rst
+++ b/doc/guides/rel_notes/release_18_11.rst
@@ -182,6 +182,14 @@ New Features
   the SW eventdev PMD, sacrifices load balancing performance to
   gain better event scheduling throughput and scalability.
 
+* **Added extendable bucket feature to hash library (rte_hash).**
+
+  This new “extendable bucket” feature provides 100% insertion guarantee to
+  the capacity specified by the user by extending hash table with extra
+  buckets when needed to accommodate the unlikely event of intensive hash
+  collisions.  In addition, the internal hashing algorithm was changed to use
+  partial-key hashing to improve memory efficiency and lookup performance.
+
 * **Added ability to switch queue deferred start flag on testpmd app.**
 
   Added a console command to testpmd app, giving ability to switch
@@ -380,7 +388,7 @@ The libraries prepended with a plus sign were incremented in this version.
      librte_security.so.1
      librte_table.so.3
      librte_timer.so.1
-     librte_vhost.so.3
+     librte_vhost.so.4
 
 
 Known Issues