diff --git src/main/docbkx/performance.xml src/main/docbkx/performance.xml
index 57c866a..629da06 100644
--- src/main/docbkx/performance.xml
+++ src/main/docbkx/performance.xml
@@ -254,7 +254,53 @@
release note on HBASE-5074 support checksums in HBase block cache.
-
+
+ Tuning callQueue Options
+ HBASE-11355
+ introduces several callQueue improvements, which can increase performance. See the JIRA for
+ some benchmarking information.
+
+
+ To increase the number of callqueues, set
+ to a value greater than 1.
+
+
+ To split the callqueue into separate read and write queues, set
+ ipc.server.callqueue.read.share to a value described below.
+
+
+ The default value of 0 does not split the queue.
+
+
+ A value of .5 uses the same number of read queues and write
+ queues.
+
+
+ A value of 1.0 or uses one queue to process write requests,
+ and all other queues process read requests.
+
+
+
+
+ You can use the new option to
+ programmatically tune the number of queues:
+
+
+ A value of 0 uses a single shared queue between all the
+ handlers.
+
+
+ A value of 1 uses a separate queue for each handler.
+
+
+ A value between 0 and 1 gives each handler
+ a percentage of a queue. For instance, a value of .5 shares one
+ queue between each two handlers.
+
+
+
+
+